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BUF_RECURSED(9): checks if the lock linked to the buffer is recursed
BUS_RESCAN(9): rescan a bus checking for devices that have been added or removed
VFS_CHECKEXP(9): check if a file system is exported to a client
VGLBitmapAllocateBits(3), VGLBitmapCopy(3), VGLBitmapCreate(3), VGLBitmapDestroy(3), VGLBitmapPutChar(3), VGLBitmapString(3), VGLBlankDisplay(3), VGLBox(3), VGLCheckSwitch(3), VGLClear(3), VGLEllipse(3), VGLEnd(3), VGLFilledBox(3), VGLFilledEllipse(3), VGLGetXY(3), VGLInit(3), VGLLine(3), VGLKeyboardInit(3), VGLKeyboardEnd(3), VGLKeyboardGetCh(3), VGLMouseInit(3), VGLMouseMode(3), VGLMouseSetImage(3), VGLMouseSetStdImage(3), VGLMouseStatus(3), VGLPanScreen(3), VGLSetBorder(3), VGLSetPalette(3), VGLSetPaletteIndex(3), VGLSetVScreenSize(3), VGLSetXY(3), VGLTextSetFontFile(3): Video Graphics Library functions
VOP_ACCESS(9), VOP_ACCESSX(9): check access permissions of a file or Unix domain socket
VOP_ACLCHECK(9): check an access control list for a vnode
_nc_freeall(3), _nc_free_and_exit(3), _nc_free_tinfo(3): curses memory-leak checking
access(2), eaccess(2), faccessat(2): check accessibility of a file
acl_get_flag_np(3): check if a flag is set in a flagset
acl_get_perm_np(3): check if a permission is set in a permission set
atf-c(3), ATF_CHECK(3), ATF_CHECK_MSG(3), ATF_CHECK_EQ(3), ATF_CHECK_EQ_MSG(3), ATF_CHECK_MATCH(3), ATF_CHECK_MATCH_MSG(3), ATF_CHECK_STREQ(3), ATF_CHECK_STREQ_MSG(3), ATF_CHECK_ERRNO(3), ATF_REQUIRE(3), ATF_REQUIRE_MSG(3), ATF_REQUIRE_EQ(3), ATF_REQUIRE_EQ_MSG(3), ATF_REQUIRE_MATCH(3), ATF_REQUIRE_MATCH_MSG(3), ATF_REQUIRE_STREQ(3), ATF_REQUIRE_STREQ_MSG(3), ATF_REQUIRE_ERRNO(3), ATF_TC(3), ATF_TC_BODY(3), ATF_TC_BODY_NAME(3), ATF_TC_CLEANUP(3), ATF_TC_CLEANUP_NAME(3), ATF_TC_HEAD(3), ATF_TC_HEAD_NAME(3), ATF_TC_NAME(3), ATF_TC_WITH_CLEANUP(3), ATF_TC_WITHOUT_HEAD(3), ATF_TP_ADD_TC(3), ATF_TP_ADD_TCS(3), atf_tc_get_config_var(3), atf_tc_get_config_var_wd(3), atf_tc_get_config_var_as_bool(3), atf_tc_get_config_var_as_bool_wd(3), atf_tc_get_config_var_as_long(3), atf_tc_get_config_var_as_long_wd(3), atf_no_error(3), atf_tc_expect_death(3), atf_tc_expect_exit(3), atf_tc_expect_fail(3), atf_tc_expect_pass(3), atf_tc_expect_signal(3), atf_tc_expect_timeout(3), atf_tc_fail(3), atf_tc_fail_nonfatal(3), atf_tc_pass(3), atf_tc_skip(3), atf_utils_cat_file(3), atf_utils_compare_file(3), atf_utils_copy_file(3), atf_utils_create_file(3), atf_utils_file_exists(3), atf_utils_fork(3), atf_utils_free_charpp(3), atf_utils_grep_file(3), atf_utils_grep_string(3), atf_utils_readline(3), atf_utils_redirect(3), atf_utils_wait(3): C API to write ATF-based test programs
atf-c++(3), ATF_ADD_TEST_CASE(3), ATF_CHECK_ERRNO(3), ATF_FAIL(3), ATF_INIT_TEST_CASES(3), ATF_PASS(3), ATF_REQUIRE(3), ATF_REQUIRE_EQ(3), ATF_REQUIRE_ERRNO(3), ATF_REQUIRE_IN(3), ATF_REQUIRE_MATCH(3), ATF_REQUIRE_NOT_IN(3), ATF_REQUIRE_THROW(3), ATF_REQUIRE_THROW_RE(3), ATF_SKIP(3), ATF_TEST_CASE(3), ATF_TEST_CASE_BODY(3), ATF_TEST_CASE_CLEANUP(3), ATF_TEST_CASE_HEAD(3), ATF_TEST_CASE_NAME(3), ATF_TEST_CASE_USE(3), ATF_TEST_CASE_WITH_CLEANUP(3), ATF_TEST_CASE_WITHOUT_HEAD(3), atf::utils::cat_file(3), atf::utils::compare_file(3), atf::utils::copy_file(3), atf::utils::create_file(3), atf::utils::file_exists(3), atf::utils::fork(3), atf::utils::grep_collection(3), atf::utils::grep_file(3), atf::utils::grep_string(3), atf::utils::redirect(3), atf::utils::wait(3): C++ API to write ATF-based test programs
atf-check(1): executes a command and analyzes its results
atf_add_test_case(3), atf_check(3), atf_check_equal(3), atf_check_not_equal(3), atf_config_get(3), atf_config_has(3), atf_expect_death(3), atf_expect_exit(3), atf_expect_fail(3), atf_expect_pass(3), atf_expect_signal(3), atf_expect_timeout(3), atf_fail(3), atf_get(3), atf_get_srcdir(3), atf_init_test_cases(3), atf_pass(3), atf_require_prog(3), atf_set(3), atf_skip(3), atf_test_case(3): POSIX shell API to write ATF-based test programs
auth_checknologin(3), auth_cat(3): authentication style support library for login class capabilities database
auth_ttyok(3), auth_hostok(3), auth_timeok(3): functions for checking login class based login restrictions
cap_sandboxed(3): Check if in a capability mode sandbox
check-password.4th(8): FreeBSD password-checking boot module
check_utility_compat(3): determine whether a utility should be compatible
chkgrp(8): check the syntax of the group file
chkprintcap(8): check validity of entries in the print spooler database
ckdist(1): check software distributions
cksum(1), sum(1): display file checksums and block counts
clearerr(3), clearerr_unlocked(3), feof(3), feof_unlocked(3), ferror(3), ferror_unlocked(3), fileno(3), fileno_unlocked(3): check and reset stream status
devstat(3), devstat_getnumdevs(3), devstat_getgeneration(3), devstat_getversion(3), devstat_checkversion(3), devstat_getdevs(3), devstat_selectdevs(3), devstat_buildmatch(3), devstat_compute_statistics(3), devstat_compute_etime(3): device statistics utility library
dwarf_hasattr(3): check for the presence of an attribute
elf32_checksum(3), elf64_checksum(3), gelf_checksum(3): return the checksum of an ELF object
fmtcheck(3): sanitizes user-supplied printf(3)-style format string
fsck(8): file system consistency check and interactive repair
fsck_ffs(8), fsck_ufs(8): file system consistency check and interactive repair
fsck_msdosfs(8): DOS/Windows (FAT) file system consistency checker
groupmember(9): checks group set for a group ID
gss_verify_mic(3), gss_verify(3): Check a MIC against a message; verify integrity of a received message
hx509(3): revokation checking functions
k_hasafs(3), k_hasafs_recheck(3), k_pioctl(3), k_unlog(3), k_setpag(3), k_afs_cell_of_file(3), kafs_set_verbose(3), kafs_settoken_rxkad(3), kafs_settoken(3), krb_afslog(3), krb_afslog_uid(3), kafs_settoken5(3), krb5_afslog(3), krb5_afslog_uid(3): AFS library
kadm5_pwcheck(3), krb5_pwcheck(3), kadm5_setup_passwd_quality_check(3), kadm5_add_passwd_quality_verifier(3), kadm5_check_password_quality(3): Heimdal warning and error functions
kernacc(9), useracc(9): check memory regions for accessibility
key_defined(3): check if a keycode is defined
kproc_start(9), kproc_shutdown(9), kproc_create(9), kproc_exit(9), kproc_resume(9), kproc_suspend(9), kproc_suspend_check(9): kernel processes
krb5_c_block_size(3), krb5_c_decrypt(3), krb5_c_encrypt(3), krb5_c_encrypt_length(3), krb5_c_enctype_compare(3), krb5_c_get_checksum(3), krb5_c_is_coll_proof_cksum(3), krb5_c_is_keyed_cksum(3), krb5_c_keylength(3), krb5_c_make_checksum(3), krb5_c_make_random_key(3), krb5_c_set_checksum(3), krb5_c_valid_cksumtype(3), krb5_c_valid_enctype(3), krb5_c_verify_checksum(3), krb5_c_checksum_length(3): Kerberos 5 crypto API
krb5_check_transited(3), krb5_check_transited_realms(3), krb5_domain_x500_decode(3), krb5_domain_x500_encode(3): realm transit verification and encoding/decoding functions
krb5_checksum(3), krb5_checksum_disable(3), krb5_checksum_is_collision_proof(3), krb5_checksum_is_keyed(3), krb5_checksumsize(3), krb5_cksumtype_valid(3), krb5_copy_checksum(3), krb5_create_checksum(3), krb5_crypto_get_checksum_type krb5_free_checksum(3), krb5_free_checksum_contents(3), krb5_hmac(3), krb5_verify_checksum(3): creates, handles and verifies checksums
kthread_start(9), kthread_shutdown(9), kthread_add(9), kthread_exit(9), kthread_resume(9), kthread_suspend(9), kthread_suspend_check(9): kernel threads
libmagic(3), magic_open(3), magic_close(3), magic_error(3), magic_errno(3), magic_descriptor(3), magic_buffer(3), magic_getflags(3), magic_setflags(3), magic_check(3), magic_compile(3), magic_list(3), magic_load(3), magic_load_buffers(3), magic_setparam(3), magic_getparam(3), magic_version(3): Magic number recognition library
libngatm(3), uni_decode(3), uni_decode_head(3), uni_decode_body(3), uni_decode_ie_hdr(3), uni_decode_ie_body(3), uni_encode(3), uni_encode_msg_hdr(3), uni_encode_ie(3), uni_encode_ie_hdr(3), uni_check_ie(3), uni_print_cref(3), uni_print_msghdr(3), uni_print(3), uni_print_ie(3), uni_initcx(3), uni_print_cx(3): ATM signalling library - message handling functions
local-unbound-checkconf(8): Check Local-unbound configuration file for errors
md5(1), sha1(1), sha224(1), sha256(1), sha384(1), sha512(1), sha512t256(1), rmd160(1), skein256(1), skein512(1), skein1024(1), md5sum(1), sha1sum(1), sha224sum(1), sha256sum(1), sha384sum(1), sha512sum(1), sha512t256sum(1), rmd160sum(1), skein256sum(1), skein512sum(1), skein1024sum(1): calculate a message-digest fingerprint (checksum) for a file
mitem_visible(3): check visibility of a menu item
ng_checksum(4): reconstructing IP checksums node type
ofw_bus_get_status(9), ofw_bus_status_okay(9), ofw_bus_node_status_okay(9): check status of the device tree node
ofw_bus_is_compatible(9), ofw_bus_is_compatible_strict(9), ofw_bus_node_is_compatible(9), ofw_bus_search_compatible(9): check device tree nodes for compatibility with drivers
parse_lt(3), in_lt(3), in_ltm(3), in_ltms(3), in_lts(3): functions for parsing and checking login time periods
pathchk(1): check pathnames
pcap_can_set_rfmon(3): check whether monitor mode can be set for a not-yet-activated capture handle
pcap_offline_filter(3): check whether a filter matches a packet
prison_check(9): determine if two credentials belong to the same jail
priv(9): kernel privilege checking API
quota_close(3), quota_open quota_close quota_on quota_off quota_read quota_write_limits quota_write_usage quota_fsname quota_qfname quota_maxid quota_check_path quota_convert(3): Manipulate quotas
quotacheck(8): file system quota consistency checker
ratecheck(9), ppsratecheck(9): event rate limiting
snmp_client(3), snmp_client_init(3), snmp_client_set_host(3), snmp_client_set_port(3), snmp_send_cb_f(3), snmp_timeout_cb_f(3), snmp_timeout_start_f(3), snmp_timeout_stop_f(3), snmp_open(3), snmp_close(3), snmp_pdu_create(3), snmp_add_binding(3), snmp_pdu_check(3), snmp_pdu_send(3), snmp_oid_append(3), snmp_parse_server(3), snmp_receive(3), snmp_table_cb_f(3), snmp_table_fetch(3), snmp_table_fetch_async(3), snmp_dialog(3), snmp_discover_engine(3): SNMP client library
tcpdchk(8): tcp wrapper configuration checker
unimsg(3), unisve_check_addr(3), unisve_check_selector(3), unisve_check_blli_id2(3), unisve_check_blli_id3(3), unisve_check_bhli(3), unisve_check_sap(3), unisve_overlap_addr(3), unisve_overlap_selector(3), unisve_overlap_blli_id2(3), unisve_overlap_blli_id3(3), unisve_overlap_bhli(3), unisve_overlap_sap(3), unisve_is_catchall(3), unisve_match(3): ATM signalling library - ATM SAP handling
use_legacy_coding(3): override locale-encoding checks
verify_krb5_conf(8): checks krb5.conf for obvious errors
vfs_suser(9): check if credentials have superuser privileges for a mount point
vm_map_check_protection(9): check memory protection for a vm_map
vn_isdisk(9): checks if a vnode represents a disk
zpool-checkpoint(8): check-point current ZFS storage pool state
ASN1_TIME_set(3), ASN1_UTCTIME_set(3), ASN1_GENERALIZEDTIME_set(3), ASN1_TIME_adj(3), ASN1_UTCTIME_adj(3), ASN1_GENERALIZEDTIME_adj(3), ASN1_TIME_check(3), ASN1_UTCTIME_check(3), ASN1_GENERALIZEDTIME_check(3), ASN1_TIME_set_string(3), ASN1_UTCTIME_set_string(3), ASN1_GENERALIZEDTIME_set_string(3), ASN1_TIME_set_string_X509(3), ASN1_TIME_normalize(3), ASN1_TIME_to_tm(3), ASN1_TIME_print(3), ASN1_UTCTIME_print(3), ASN1_GENERALIZEDTIME_print(3), ASN1_TIME_diff(3), ASN1_TIME_cmp_time_t(3), ASN1_UTCTIME_cmp_time_t(3), ASN1_TIME_compare(3), ASN1_TIME_to_generalizedtime(3): ASN.1 Time functions
DES_random_key(3), DES_set_key(3), DES_key_sched(3), DES_set_key_checked(3), DES_set_key_unchecked(3), DES_set_odd_parity(3), DES_is_weak_key(3), DES_ecb_encrypt(3), DES_ecb2_encrypt(3), DES_ecb3_encrypt(3), DES_ncbc_encrypt(3), DES_cfb_encrypt(3), DES_ofb_encrypt(3), DES_pcbc_encrypt(3), DES_cfb64_encrypt(3), DES_ofb64_encrypt(3), DES_xcbc_encrypt(3), DES_ede2_cbc_encrypt(3), DES_ede2_cfb64_encrypt(3), DES_ede2_ofb64_encrypt(3), DES_ede3_cbc_encrypt(3), DES_ede3_cfb64_encrypt(3), DES_ede3_ofb64_encrypt(3), DES_cbc_cksum(3), DES_quad_cksum(3), DES_string_to_key(3), DES_string_to_2keys(3), DES_fcrypt(3), DES_crypt(3): DES encryption
DH_generate_parameters_ex(3), DH_generate_parameters(3), DH_check(3), DH_check_params(3), DH_check_ex(3), DH_check_params_ex(3), DH_check_pub_key_ex(3): generate and check Diffie-Hellman parameters
EC_GROUP_get0_order(3), EC_GROUP_order_bits(3), EC_GROUP_get0_cofactor(3), EC_GROUP_copy(3), EC_GROUP_dup(3), EC_GROUP_method_of(3), EC_GROUP_set_generator(3), EC_GROUP_get0_generator(3), EC_GROUP_get_order(3), EC_GROUP_get_cofactor(3), EC_GROUP_set_curve_name(3), EC_GROUP_get_curve_name(3), EC_GROUP_set_asn1_flag(3), EC_GROUP_get_asn1_flag(3), EC_GROUP_set_point_conversion_form(3), EC_GROUP_get_point_conversion_form(3), EC_GROUP_get0_seed(3), EC_GROUP_get_seed_len(3), EC_GROUP_set_seed(3), EC_GROUP_get_degree(3), EC_GROUP_check(3), EC_GROUP_check_discriminant(3), EC_GROUP_cmp(3), EC_GROUP_get_basis_type(3), EC_GROUP_get_trinomial_basis(3), EC_GROUP_get_pentanomial_basis(3): Functions for manipulating EC_GROUP objects
EC_KEY_get_method(3), EC_KEY_set_method(3), EC_KEY_new(3), EC_KEY_get_flags(3), EC_KEY_set_flags(3), EC_KEY_clear_flags(3), EC_KEY_new_by_curve_name(3), EC_KEY_free(3), EC_KEY_copy(3), EC_KEY_dup(3), EC_KEY_up_ref(3), EC_KEY_get0_engine(3), EC_KEY_get0_group(3), EC_KEY_set_group(3), EC_KEY_get0_private_key(3), EC_KEY_set_private_key(3), EC_KEY_get0_public_key(3), EC_KEY_set_public_key(3), EC_KEY_get_conv_form(3), EC_KEY_set_conv_form(3), EC_KEY_set_asn1_flag(3), EC_KEY_decoded_from_explicit_params(3), EC_KEY_precompute_mult(3), EC_KEY_generate_key(3), EC_KEY_check_key(3), EC_KEY_set_public_key_affine_coordinates(3), EC_KEY_oct2key(3), EC_KEY_key2buf(3), EC_KEY_oct2priv(3), EC_KEY_priv2oct(3), EC_KEY_priv2buf(3): Functions for creating, destroying and manipulating EC_KEY objects
EVP_PKEY_ASN1_METHOD(3), EVP_PKEY_asn1_new(3), EVP_PKEY_asn1_copy(3), EVP_PKEY_asn1_free(3), EVP_PKEY_asn1_add0(3), EVP_PKEY_asn1_add_alias(3), EVP_PKEY_asn1_set_public(3), EVP_PKEY_asn1_set_private(3), EVP_PKEY_asn1_set_param(3), EVP_PKEY_asn1_set_free(3), EVP_PKEY_asn1_set_ctrl(3), EVP_PKEY_asn1_set_item(3), EVP_PKEY_asn1_set_siginf(3), EVP_PKEY_asn1_set_check(3), EVP_PKEY_asn1_set_public_check(3), EVP_PKEY_asn1_set_param_check(3), EVP_PKEY_asn1_set_security_bits(3), EVP_PKEY_asn1_set_set_priv_key(3), EVP_PKEY_asn1_set_set_pub_key(3), EVP_PKEY_asn1_set_get_priv_key(3), EVP_PKEY_asn1_set_get_pub_key(3), EVP_PKEY_get0_asn1(3): manipulating and registering EVP_PKEY_ASN1_METHOD structure
EVP_PKEY_keygen_init(3), EVP_PKEY_keygen(3), EVP_PKEY_paramgen_init(3), EVP_PKEY_paramgen(3), EVP_PKEY_CTX_set_cb(3), EVP_PKEY_CTX_get_cb(3), EVP_PKEY_CTX_get_keygen_info(3), EVP_PKEY_CTX_set_app_data(3), EVP_PKEY_CTX_get_app_data(3), EVP_PKEY_gen_cb(3), EVP_PKEY_check(3), EVP_PKEY_public_check(3), EVP_PKEY_param_check(3): key and parameter generation and check functions
EVP_PKEY_meth_new(3), EVP_PKEY_meth_free(3), EVP_PKEY_meth_copy(3), EVP_PKEY_meth_find(3), EVP_PKEY_meth_add0(3), EVP_PKEY_METHOD(3), EVP_PKEY_meth_set_init(3), EVP_PKEY_meth_set_copy(3), EVP_PKEY_meth_set_cleanup(3), EVP_PKEY_meth_set_paramgen(3), EVP_PKEY_meth_set_keygen(3), EVP_PKEY_meth_set_sign(3), EVP_PKEY_meth_set_verify(3), EVP_PKEY_meth_set_verify_recover(3), EVP_PKEY_meth_set_signctx(3), EVP_PKEY_meth_set_verifyctx(3), EVP_PKEY_meth_set_encrypt(3), EVP_PKEY_meth_set_decrypt(3), EVP_PKEY_meth_set_derive(3), EVP_PKEY_meth_set_ctrl(3), EVP_PKEY_meth_set_digestsign(3), EVP_PKEY_meth_set_digestverify(3), EVP_PKEY_meth_set_check(3), EVP_PKEY_meth_set_public_check(3), EVP_PKEY_meth_set_param_check(3), EVP_PKEY_meth_set_digest_custom(3), EVP_PKEY_meth_get_init(3), EVP_PKEY_meth_get_copy(3), EVP_PKEY_meth_get_cleanup(3), EVP_PKEY_meth_get_paramgen(3), EVP_PKEY_meth_get_keygen(3), EVP_PKEY_meth_get_sign(3), EVP_PKEY_meth_get_verify(3), EVP_PKEY_meth_get_verify_recover(3), EVP_PKEY_meth_get_signctx(3), EVP_PKEY_meth_get_verifyctx(3), EVP_PKEY_meth_get_encrypt(3), EVP_PKEY_meth_get_decrypt(3), EVP_PKEY_meth_get_derive(3), EVP_PKEY_meth_get_ctrl(3), EVP_PKEY_meth_get_digestsign(3), EVP_PKEY_meth_get_digestverify(3), EVP_PKEY_meth_get_check(3), EVP_PKEY_meth_get_public_check(3), EVP_PKEY_meth_get_param_check(3), EVP_PKEY_meth_get_digest_custom(3), EVP_PKEY_meth_remove(3): manipulating EVP_PKEY_METHOD structure
OCSP_request_add1_nonce(3), OCSP_basic_add1_nonce(3), OCSP_check_nonce(3), OCSP_copy_nonce(3): OCSP nonce functions
OCSP_resp_get0_certs(3), OCSP_resp_get0_signer(3), OCSP_resp_get0_id(3), OCSP_resp_get1_id(3), OCSP_resp_get0_produced_at(3), OCSP_resp_get0_signature(3), OCSP_resp_get0_tbs_sigalg(3), OCSP_resp_get0_respdata(3), OCSP_resp_find_status(3), OCSP_resp_count(3), OCSP_resp_get0(3), OCSP_resp_find(3), OCSP_single_get0_status(3), OCSP_check_validity(3), OCSP_basic_verify(3): OCSP response utility functions
RSA_check_key_ex(3), RSA_check_key(3): validate private RSA keys
RSA_padding_add_PKCS1_type_1(3), RSA_padding_check_PKCS1_type_1(3), RSA_padding_add_PKCS1_type_2(3), RSA_padding_check_PKCS1_type_2(3), RSA_padding_add_PKCS1_OAEP(3), RSA_padding_check_PKCS1_OAEP(3), RSA_padding_add_PKCS1_OAEP_mgf1(3), RSA_padding_check_PKCS1_OAEP_mgf1(3), RSA_padding_add_SSLv23(3), RSA_padding_check_SSLv23(3), RSA_padding_add_none(3), RSA_padding_check_none(3): asymmetric encryption padding
SCT_validate(3), SCT_LIST_validate(3), SCT_get_validation_status(3): checks Signed Certificate Timestamps (SCTs) are valid
SSL_CTX_has_client_custom_ext(3): check whether a handler exists for a particular client extension type
SSL_CTX_use_certificate(3), SSL_CTX_use_certificate_ASN1(3), SSL_CTX_use_certificate_file(3), SSL_use_certificate(3), SSL_use_certificate_ASN1(3), SSL_use_certificate_file(3), SSL_CTX_use_certificate_chain_file(3), SSL_use_certificate_chain_file(3), SSL_CTX_use_PrivateKey(3), SSL_CTX_use_PrivateKey_ASN1(3), SSL_CTX_use_PrivateKey_file(3), SSL_CTX_use_RSAPrivateKey(3), SSL_CTX_use_RSAPrivateKey_ASN1(3), SSL_CTX_use_RSAPrivateKey_file(3), SSL_use_PrivateKey_file(3), SSL_use_PrivateKey_ASN1(3), SSL_use_PrivateKey(3), SSL_use_RSAPrivateKey(3), SSL_use_RSAPrivateKey_ASN1(3), SSL_use_RSAPrivateKey_file(3), SSL_CTX_check_private_key(3), SSL_check_private_key(3), SSL_CTX_use_cert_and_key(3), SSL_use_cert_and_key(3): load certificate and key data
SSL_check_chain(3): check certificate chain suitability
SSL_pending(3), SSL_has_pending(3): check for readable bytes buffered in an SSL object
X509_STORE_CTX_get_cleanup(3), X509_STORE_CTX_get_lookup_crls(3), X509_STORE_CTX_get_lookup_certs(3), X509_STORE_CTX_get_check_policy(3), X509_STORE_CTX_get_cert_crl(3), X509_STORE_CTX_get_check_crl(3), X509_STORE_CTX_get_get_crl(3), X509_STORE_CTX_get_check_revocation(3), X509_STORE_CTX_get_check_issued(3), X509_STORE_CTX_get_get_issuer(3), X509_STORE_CTX_get_verify_cb(3), X509_STORE_CTX_set_verify_cb(3), X509_STORE_CTX_verify_cb(3): get and set verification callback
X509_STORE_set_lookup_crls_cb(3), X509_STORE_set_verify_func(3), X509_STORE_get_cleanup(3), X509_STORE_set_cleanup(3), X509_STORE_get_lookup_crls(3), X509_STORE_set_lookup_crls(3), X509_STORE_get_lookup_certs(3), X509_STORE_set_lookup_certs(3), X509_STORE_get_check_policy(3), X509_STORE_set_check_policy(3), X509_STORE_get_cert_crl(3), X509_STORE_set_cert_crl(3), X509_STORE_get_check_crl(3), X509_STORE_set_check_crl(3), X509_STORE_get_get_crl(3), X509_STORE_set_get_crl(3), X509_STORE_get_check_revocation(3), X509_STORE_set_check_revocation(3), X509_STORE_get_check_issued(3), X509_STORE_set_check_issued(3), X509_STORE_get_get_issuer(3), X509_STORE_set_get_issuer(3), X509_STORE_CTX_get_verify(3), X509_STORE_set_verify(3), X509_STORE_get_verify_cb(3), X509_STORE_set_verify_cb_func(3), X509_STORE_set_verify_cb(3), X509_STORE_CTX_cert_crl_fn(3), X509_STORE_CTX_check_crl_fn(3), X509_STORE_CTX_check_issued_fn(3), X509_STORE_CTX_check_policy_fn(3), X509_STORE_CTX_check_revocation_fn(3), X509_STORE_CTX_cleanup_fn(3), X509_STORE_CTX_get_crl_fn(3), X509_STORE_CTX_get_issuer_fn(3), X509_STORE_CTX_lookup_certs_fn(3), X509_STORE_CTX_lookup_crls_fn(3): set verification callback
X509_check_ca(3): check if given certificate is CA certificate
X509_check_host(3), X509_check_email(3), X509_check_ip(3), X509_check_ip_asc(3): X.509 certificate matching
X509_check_issued(3): checks if certificate is apparently issued by another certificate
X509_check_private_key(3), X509_REQ_check_private_key(3): check the consistency of a private key with the public key in an X509 certificate or certificate request
X509_check_purpose(3): Check the purpose of a certificate
AG_Checkbox(3): agar checkbox widget
ASN1_BIT_STRING_set(3), ASN1_BIT_STRING_set_bit(3), ASN1_BIT_STRING_get_bit(3), ASN1_BIT_STRING_check(3): ASN.1 BIT STRING accessors
ASN1_TIME_set(3), ASN1_UTCTIME_set(3), ASN1_GENERALIZEDTIME_set(3), ASN1_TIME_adj(3), ASN1_UTCTIME_adj(3), ASN1_GENERALIZEDTIME_adj(3), ASN1_TIME_check(3), ASN1_UTCTIME_check(3), ASN1_GENERALIZEDTIME_check(3), ASN1_TIME_set_string(3), ASN1_UTCTIME_set_string(3), ASN1_GENERALIZEDTIME_set_string(3), ASN1_TIME_set_string_X509(3), ASN1_TIME_normalize(3), ASN1_TIME_to_tm(3), ASN1_TIME_print(3), ASN1_UTCTIME_print(3), ASN1_GENERALIZEDTIME_print(3), ASN1_TIME_diff(3), ASN1_TIME_cmp_time_t(3), ASN1_UTCTIME_cmp_time_t(3), ASN1_TIME_compare(3), ASN1_TIME_to_generalizedtime(3): ASN.1 Time functions
ASN1_TIME_set(3ossl), ASN1_UTCTIME_set(3ossl), ASN1_GENERALIZEDTIME_set(3ossl), ASN1_TIME_adj(3ossl), ASN1_UTCTIME_adj(3ossl), ASN1_GENERALIZEDTIME_adj(3ossl), ASN1_TIME_check(3ossl), ASN1_UTCTIME_check(3ossl), ASN1_GENERALIZEDTIME_check(3ossl), ASN1_TIME_set_string(3ossl), ASN1_UTCTIME_set_string(3ossl), ASN1_GENERALIZEDTIME_set_string(3ossl), ASN1_TIME_set_string_X509(3ossl), ASN1_TIME_normalize(3ossl), ASN1_TIME_to_tm(3ossl), ASN1_TIME_print(3ossl), ASN1_TIME_print_ex(3ossl), ASN1_UTCTIME_print(3ossl), ASN1_GENERALIZEDTIME_print(3ossl), ASN1_TIME_diff(3ossl), ASN1_TIME_cmp_time_t(3ossl), ASN1_UTCTIME_cmp_time_t(3ossl), ASN1_TIME_compare(3ossl), ASN1_TIME_to_generalizedtime(3ossl), ASN1_TIME_dup(3ossl), ASN1_UTCTIME_dup(3ossl), ASN1_GENERALIZEDTIME_dup(3ossl): ASN.1 Time functions
Ast_invariants(3o): Check AST invariants
BN_generate_prime_ex2(3ossl), BN_generate_prime_ex(3ossl), BN_is_prime_ex(3ossl), BN_check_prime(3ossl), BN_is_prime_fasttest_ex(3ossl), BN_GENCB_call(3ossl), BN_GENCB_new(3ossl), BN_GENCB_free(3ossl), BN_GENCB_set_old(3ossl), BN_GENCB_set(3ossl), BN_GENCB_get_arg(3ossl), BN_generate_prime(3ossl), BN_is_prime(3ossl), BN_is_prime_fasttest(3ossl): generate primes and test for primality
BSctx_set_err(3): Set the type of error checking
CDKgetDirectoryContents(3), CDKgetDirectoryContents CDKreadFile alignxy char2Chtype char2DisplayType checkForLink chtype2String deleteCursesWindow eraseCursesWindow getListIndex getString justifyString mode2Filetype moveCursesWindow popupDialog popupLabel popupLabelAttrib selectFile setWidgetDimension stripWhiteSpace viewFile viewInfo cdk_util(3): Cdk utility functions
CHECKPOINT(7): force a write-ahead log checkpoint
CURLOPT_SSH_HOST_PUBLIC_KEY_MD5(3): MD5 checksum of SSH server public key
DES_random_key(3), DES_set_key(3), DES_key_sched(3), DES_set_key_checked(3), DES_set_key_unchecked(3), DES_set_odd_parity(3), DES_is_weak_key(3), DES_ecb_encrypt(3), DES_ecb2_encrypt(3), DES_ecb3_encrypt(3), DES_ncbc_encrypt(3), DES_cfb_encrypt(3), DES_ofb_encrypt(3), DES_pcbc_encrypt(3), DES_cfb64_encrypt(3), DES_ofb64_encrypt(3), DES_xcbc_encrypt(3), DES_ede2_cbc_encrypt(3), DES_ede2_cfb64_encrypt(3), DES_ede2_ofb64_encrypt(3), DES_ede3_cbc_encrypt(3), DES_ede3_cfb64_encrypt(3), DES_ede3_ofb64_encrypt(3), DES_cbc_cksum(3), DES_quad_cksum(3), DES_string_to_key(3), DES_string_to_2keys(3), DES_fcrypt(3), DES_crypt(3): DES encryption
DES_random_key(3ossl), DES_set_key(3ossl), DES_key_sched(3ossl), DES_set_key_checked(3ossl), DES_set_key_unchecked(3ossl), DES_set_odd_parity(3ossl), DES_is_weak_key(3ossl), DES_ecb_encrypt(3ossl), DES_ecb2_encrypt(3ossl), DES_ecb3_encrypt(3ossl), DES_ncbc_encrypt(3ossl), DES_cfb_encrypt(3ossl), DES_ofb_encrypt(3ossl), DES_pcbc_encrypt(3ossl), DES_cfb64_encrypt(3ossl), DES_ofb64_encrypt(3ossl), DES_xcbc_encrypt(3ossl), DES_ede2_cbc_encrypt(3ossl), DES_ede2_cfb64_encrypt(3ossl), DES_ede2_ofb64_encrypt(3ossl), DES_ede3_cbc_encrypt(3ossl), DES_ede3_cfb64_encrypt(3ossl), DES_ede3_ofb64_encrypt(3ossl), DES_cbc_cksum(3ossl), DES_quad_cksum(3ossl), DES_string_to_key(3ossl), DES_string_to_2keys(3ossl), DES_fcrypt(3ossl), DES_crypt(3ossl): DES encryption
DH_generate_parameters_ex(3), DH_generate_parameters(3), DH_check(3), DH_check_params(3), DH_check_ex(3), DH_check_params_ex(3), DH_check_pub_key_ex(3): generate and check Diffie-Hellman parameters
DH_generate_parameters_ex(3ossl), DH_generate_parameters(3ossl), DH_check(3ossl), DH_check_params(3ossl), DH_check_ex(3ossl), DH_check_params_ex(3ossl), DH_check_pub_key_ex(3ossl): generate and check Diffie-Hellman parameters
Dpkg::Checksums(3perl): generate and manipulate file checksums
EC_GROUP_get0_order(3), EC_GROUP_order_bits(3), EC_GROUP_get0_cofactor(3), EC_GROUP_copy(3), EC_GROUP_dup(3), EC_GROUP_method_of(3), EC_GROUP_set_generator(3), EC_GROUP_get0_generator(3), EC_GROUP_get_order(3), EC_GROUP_get_cofactor(3), EC_GROUP_set_curve_name(3), EC_GROUP_get_curve_name(3), EC_GROUP_set_asn1_flag(3), EC_GROUP_get_asn1_flag(3), EC_GROUP_set_point_conversion_form(3), EC_GROUP_get_point_conversion_form(3), EC_GROUP_get0_seed(3), EC_GROUP_get_seed_len(3), EC_GROUP_set_seed(3), EC_GROUP_get_degree(3), EC_GROUP_check(3), EC_GROUP_check_discriminant(3), EC_GROUP_cmp(3), EC_GROUP_get_basis_type(3), EC_GROUP_get_trinomial_basis(3), EC_GROUP_get_pentanomial_basis(3): Functions for manipulating EC_GROUP objects
EC_GROUP_get0_order(3ossl), EC_GROUP_order_bits(3ossl), EC_GROUP_get0_cofactor(3ossl), EC_GROUP_copy(3ossl), EC_GROUP_dup(3ossl), EC_GROUP_method_of(3ossl), EC_GROUP_set_generator(3ossl), EC_GROUP_get0_generator(3ossl), EC_GROUP_get_order(3ossl), EC_GROUP_get_cofactor(3ossl), EC_GROUP_set_curve_name(3ossl), EC_GROUP_get_curve_name(3ossl), EC_GROUP_set_asn1_flag(3ossl), EC_GROUP_get_asn1_flag(3ossl), EC_GROUP_set_point_conversion_form(3ossl), EC_GROUP_get_point_conversion_form(3ossl), EC_GROUP_get0_seed(3ossl), EC_GROUP_get_seed_len(3ossl), EC_GROUP_set_seed(3ossl), EC_GROUP_get_degree(3ossl), EC_GROUP_check(3ossl), EC_GROUP_check_named_curve(3ossl), EC_GROUP_check_discriminant(3ossl), EC_GROUP_cmp(3ossl), EC_GROUP_get_basis_type(3ossl), EC_GROUP_get_trinomial_basis(3ossl), EC_GROUP_get_pentanomial_basis(3ossl), EC_GROUP_get0_field(3ossl), EC_GROUP_get_field_type(3ossl): Functions for manipulating EC_GROUP objects
EC_KEY_get_method(3), EC_KEY_set_method(3), EC_KEY_new(3), EC_KEY_get_flags(3), EC_KEY_set_flags(3), EC_KEY_clear_flags(3), EC_KEY_new_by_curve_name(3), EC_KEY_free(3), EC_KEY_copy(3), EC_KEY_dup(3), EC_KEY_up_ref(3), EC_KEY_get0_engine(3), EC_KEY_get0_group(3), EC_KEY_set_group(3), EC_KEY_get0_private_key(3), EC_KEY_set_private_key(3), EC_KEY_get0_public_key(3), EC_KEY_set_public_key(3), EC_KEY_get_conv_form(3), EC_KEY_set_conv_form(3), EC_KEY_set_asn1_flag(3), EC_KEY_decoded_from_explicit_params(3), EC_KEY_precompute_mult(3), EC_KEY_generate_key(3), EC_KEY_check_key(3), EC_KEY_set_public_key_affine_coordinates(3), EC_KEY_oct2key(3), EC_KEY_key2buf(3), EC_KEY_oct2priv(3), EC_KEY_priv2oct(3), EC_KEY_priv2buf(3): Functions for creating, destroying and manipulating EC_KEY objects
EVP_EC_gen(3ossl), EC_KEY_get_method(3ossl), EC_KEY_set_method(3ossl), EC_KEY_new_ex(3ossl), EC_KEY_new(3ossl), EC_KEY_get_flags(3ossl), EC_KEY_set_flags(3ossl), EC_KEY_clear_flags(3ossl), EC_KEY_new_by_curve_name_ex(3ossl), EC_KEY_new_by_curve_name(3ossl), EC_KEY_free(3ossl), EC_KEY_copy(3ossl), EC_KEY_dup(3ossl), EC_KEY_up_ref(3ossl), EC_KEY_get0_engine(3ossl), EC_KEY_get0_group(3ossl), EC_KEY_set_group(3ossl), EC_KEY_get0_private_key(3ossl), EC_KEY_set_private_key(3ossl), EC_KEY_get0_public_key(3ossl), EC_KEY_set_public_key(3ossl), EC_KEY_get_conv_form(3ossl), EC_KEY_set_conv_form(3ossl), EC_KEY_set_asn1_flag(3ossl), EC_KEY_decoded_from_explicit_params(3ossl), EC_KEY_precompute_mult(3ossl), EC_KEY_generate_key(3ossl), EC_KEY_check_key(3ossl), EC_KEY_set_public_key_affine_coordinates(3ossl), EC_KEY_oct2key(3ossl), EC_KEY_key2buf(3ossl), EC_KEY_oct2priv(3ossl), EC_KEY_priv2oct(3ossl), EC_KEY_priv2buf(3ossl): Functions for creating, destroying and manipulating EC_KEY objects
EVP_PKEY_ASN1_METHOD(3), EVP_PKEY_asn1_new(3), EVP_PKEY_asn1_copy(3), EVP_PKEY_asn1_free(3), EVP_PKEY_asn1_add0(3), EVP_PKEY_asn1_add_alias(3), EVP_PKEY_asn1_set_public(3), EVP_PKEY_asn1_set_private(3), EVP_PKEY_asn1_set_param(3), EVP_PKEY_asn1_set_free(3), EVP_PKEY_asn1_set_ctrl(3), EVP_PKEY_asn1_set_item(3), EVP_PKEY_asn1_set_siginf(3), EVP_PKEY_asn1_set_check(3), EVP_PKEY_asn1_set_public_check(3), EVP_PKEY_asn1_set_param_check(3), EVP_PKEY_asn1_set_security_bits(3), EVP_PKEY_asn1_set_set_priv_key(3), EVP_PKEY_asn1_set_set_pub_key(3), EVP_PKEY_asn1_set_get_priv_key(3), EVP_PKEY_asn1_set_get_pub_key(3), EVP_PKEY_get0_asn1(3): manipulating and registering EVP_PKEY_ASN1_METHOD structure
EVP_PKEY_ASN1_METHOD(3ossl), EVP_PKEY_asn1_new(3ossl), EVP_PKEY_asn1_copy(3ossl), EVP_PKEY_asn1_free(3ossl), EVP_PKEY_asn1_add0(3ossl), EVP_PKEY_asn1_add_alias(3ossl), EVP_PKEY_asn1_set_public(3ossl), EVP_PKEY_asn1_set_private(3ossl), EVP_PKEY_asn1_set_param(3ossl), EVP_PKEY_asn1_set_free(3ossl), EVP_PKEY_asn1_set_ctrl(3ossl), EVP_PKEY_asn1_set_item(3ossl), EVP_PKEY_asn1_set_siginf(3ossl), EVP_PKEY_asn1_set_check(3ossl), EVP_PKEY_asn1_set_public_check(3ossl), EVP_PKEY_asn1_set_param_check(3ossl), EVP_PKEY_asn1_set_security_bits(3ossl), EVP_PKEY_asn1_set_set_priv_key(3ossl), EVP_PKEY_asn1_set_set_pub_key(3ossl), EVP_PKEY_asn1_set_get_priv_key(3ossl), EVP_PKEY_asn1_set_get_pub_key(3ossl), EVP_PKEY_get0_asn1(3ossl): manipulating and registering EVP_PKEY_ASN1_METHOD structure
EVP_PKEY_Q_keygen(3ossl), EVP_PKEY_keygen_init(3ossl), EVP_PKEY_paramgen_init(3ossl), EVP_PKEY_generate(3ossl), EVP_PKEY_CTX_set_cb(3ossl), EVP_PKEY_CTX_get_cb(3ossl), EVP_PKEY_CTX_get_keygen_info(3ossl), EVP_PKEY_CTX_set_app_data(3ossl), EVP_PKEY_CTX_get_app_data(3ossl), EVP_PKEY_gen_cb(3ossl), EVP_PKEY_paramgen(3ossl), EVP_PKEY_keygen(3ossl): key and parameter generation and check functions
EVP_PKEY_check(3ossl), EVP_PKEY_param_check(3ossl), EVP_PKEY_param_check_quick(3ossl), EVP_PKEY_public_check(3ossl), EVP_PKEY_public_check_quick(3ossl), EVP_PKEY_private_check(3ossl), EVP_PKEY_pairwise_check(3ossl): key and parameter validation functions
EVP_PKEY_keygen_init(3), EVP_PKEY_keygen(3), EVP_PKEY_paramgen_init(3), EVP_PKEY_paramgen(3), EVP_PKEY_CTX_set_cb(3), EVP_PKEY_CTX_get_cb(3), EVP_PKEY_CTX_get_keygen_info(3), EVP_PKEY_CTX_set_app_data(3), EVP_PKEY_CTX_get_app_data(3), EVP_PKEY_gen_cb(3), EVP_PKEY_check(3), EVP_PKEY_public_check(3), EVP_PKEY_param_check(3): key and parameter generation and check functions
EVP_PKEY_meth_new(3), EVP_PKEY_meth_free(3), EVP_PKEY_meth_copy(3), EVP_PKEY_meth_find(3), EVP_PKEY_meth_add0(3), EVP_PKEY_METHOD(3), EVP_PKEY_meth_set_init(3), EVP_PKEY_meth_set_copy(3), EVP_PKEY_meth_set_cleanup(3), EVP_PKEY_meth_set_paramgen(3), EVP_PKEY_meth_set_keygen(3), EVP_PKEY_meth_set_sign(3), EVP_PKEY_meth_set_verify(3), EVP_PKEY_meth_set_verify_recover(3), EVP_PKEY_meth_set_signctx(3), EVP_PKEY_meth_set_verifyctx(3), EVP_PKEY_meth_set_encrypt(3), EVP_PKEY_meth_set_decrypt(3), EVP_PKEY_meth_set_derive(3), EVP_PKEY_meth_set_ctrl(3), EVP_PKEY_meth_set_digestsign(3), EVP_PKEY_meth_set_digestverify(3), EVP_PKEY_meth_set_check(3), EVP_PKEY_meth_set_public_check(3), EVP_PKEY_meth_set_param_check(3), EVP_PKEY_meth_set_digest_custom(3), EVP_PKEY_meth_get_init(3), EVP_PKEY_meth_get_copy(3), EVP_PKEY_meth_get_cleanup(3), EVP_PKEY_meth_get_paramgen(3), EVP_PKEY_meth_get_keygen(3), EVP_PKEY_meth_get_sign(3), EVP_PKEY_meth_get_verify(3), EVP_PKEY_meth_get_verify_recover(3), EVP_PKEY_meth_get_signctx(3), EVP_PKEY_meth_get_verifyctx(3), EVP_PKEY_meth_get_encrypt(3), EVP_PKEY_meth_get_decrypt(3), EVP_PKEY_meth_get_derive(3), EVP_PKEY_meth_get_ctrl(3), EVP_PKEY_meth_get_digestsign(3), EVP_PKEY_meth_get_digestverify(3), EVP_PKEY_meth_get_check(3), EVP_PKEY_meth_get_public_check(3), EVP_PKEY_meth_get_param_check(3), EVP_PKEY_meth_get_digest_custom(3), EVP_PKEY_meth_remove(3): manipulating EVP_PKEY_METHOD structure
EVP_PKEY_meth_new(3ossl), EVP_PKEY_meth_free(3ossl), EVP_PKEY_meth_copy(3ossl), EVP_PKEY_meth_find(3ossl), EVP_PKEY_meth_add0(3ossl), EVP_PKEY_METHOD(3ossl), EVP_PKEY_meth_set_init(3ossl), EVP_PKEY_meth_set_copy(3ossl), EVP_PKEY_meth_set_cleanup(3ossl), EVP_PKEY_meth_set_paramgen(3ossl), EVP_PKEY_meth_set_keygen(3ossl), EVP_PKEY_meth_set_sign(3ossl), EVP_PKEY_meth_set_verify(3ossl), EVP_PKEY_meth_set_verify_recover(3ossl), EVP_PKEY_meth_set_signctx(3ossl), EVP_PKEY_meth_set_verifyctx(3ossl), EVP_PKEY_meth_set_encrypt(3ossl), EVP_PKEY_meth_set_decrypt(3ossl), EVP_PKEY_meth_set_derive(3ossl), EVP_PKEY_meth_set_ctrl(3ossl), EVP_PKEY_meth_set_digestsign(3ossl), EVP_PKEY_meth_set_digestverify(3ossl), EVP_PKEY_meth_set_check(3ossl), EVP_PKEY_meth_set_public_check(3ossl), EVP_PKEY_meth_set_param_check(3ossl), EVP_PKEY_meth_set_digest_custom(3ossl), EVP_PKEY_meth_get_init(3ossl), EVP_PKEY_meth_get_copy(3ossl), EVP_PKEY_meth_get_cleanup(3ossl), EVP_PKEY_meth_get_paramgen(3ossl), EVP_PKEY_meth_get_keygen(3ossl), EVP_PKEY_meth_get_sign(3ossl), EVP_PKEY_meth_get_verify(3ossl), EVP_PKEY_meth_get_verify_recover(3ossl), EVP_PKEY_meth_get_signctx(3ossl), EVP_PKEY_meth_get_verifyctx(3ossl), EVP_PKEY_meth_get_encrypt(3ossl), EVP_PKEY_meth_get_decrypt(3ossl), EVP_PKEY_meth_get_derive(3ossl), EVP_PKEY_meth_get_ctrl(3ossl), EVP_PKEY_meth_get_digestsign(3ossl), EVP_PKEY_meth_get_digestverify(3ossl), EVP_PKEY_meth_get_check(3ossl), EVP_PKEY_meth_get_public_check(3ossl), EVP_PKEY_meth_get_param_check(3ossl), EVP_PKEY_meth_get_digest_custom(3ossl), EVP_PKEY_meth_remove(3ossl): manipulating EVP_PKEY_METHOD structure
FascistCheck(3): check a potential password for guessability
FcCharSetHasChar(3): Check a charset for a char
FcConfigUptoDate(3): Check timestamps on config files
FcDirCacheValid(3): check directory cache
FcFileIsDir(3): check whether a file is a directory
FcIsLower(3): check for lower case ASCII character
FcIsUpper(3): check for upper case ASCII character
FcLangSetContains(3): check langset subset relation
FcPatternIterIsValid(3): Check whether the iterator is valid or not
FcStrSetEqual(3): check sets for equality
FcStrSetMember(3): check set for membership
FileCheck(1): Flexible pattern matching file verifier
OCSP_request_add1_nonce(3), OCSP_basic_add1_nonce(3), OCSP_check_nonce(3), OCSP_copy_nonce(3): OCSP nonce functions
OCSP_request_add1_nonce(3ossl), OCSP_basic_add1_nonce(3ossl), OCSP_check_nonce(3ossl), OCSP_copy_nonce(3ossl): OCSP nonce functions
OCSP_resp_find_status(3ossl), OCSP_resp_count(3ossl), OCSP_resp_get0(3ossl), OCSP_resp_find(3ossl), OCSP_single_get0_status(3ossl), OCSP_resp_get0_produced_at(3ossl), OCSP_resp_get0_signature(3ossl), OCSP_resp_get0_tbs_sigalg(3ossl), OCSP_resp_get0_respdata(3ossl), OCSP_resp_get0_certs(3ossl), OCSP_resp_get0_signer(3ossl), OCSP_resp_get0_id(3ossl), OCSP_resp_get1_id(3ossl), OCSP_check_validity(3ossl), OCSP_basic_verify(3ossl): OCSP response utility functions
OCSP_resp_get0_certs(3), OCSP_resp_get0_signer(3), OCSP_resp_get0_id(3), OCSP_resp_get1_id(3), OCSP_resp_get0_produced_at(3), OCSP_resp_get0_signature(3), OCSP_resp_get0_tbs_sigalg(3), OCSP_resp_get0_respdata(3), OCSP_resp_find_status(3), OCSP_resp_count(3), OCSP_resp_get0(3), OCSP_resp_find(3), OCSP_single_get0_status(3), OCSP_check_validity(3), OCSP_basic_verify(3): OCSP response utility functions
OSSL_ESS_signing_cert_new_init(3ossl), OSSL_ESS_signing_cert_v2_new_init(3ossl), OSSL_ESS_check_signing_certs(3ossl): Enhanced Security Services (ESS) functions
POFileChecker(1): searches for common mistakes in PO/POT files
POFileConsistency(1): checks consistency in a collection of PO files
POFileGlossary(1): checks a collection of PO files against a glossary
POFileSpell(1): checks the spelling in a collection of PO files
RSA_check_key_ex(3), RSA_check_key(3): validate private RSA keys
RSA_check_key_ex(3ossl), RSA_check_key(3ossl): validate private RSA keys
RSA_padding_add_PKCS1_type_1(3), RSA_padding_check_PKCS1_type_1(3), RSA_padding_add_PKCS1_type_2(3), RSA_padding_check_PKCS1_type_2(3), RSA_padding_add_PKCS1_OAEP(3), RSA_padding_check_PKCS1_OAEP(3), RSA_padding_add_PKCS1_OAEP_mgf1(3), RSA_padding_check_PKCS1_OAEP_mgf1(3), RSA_padding_add_SSLv23(3), RSA_padding_check_SSLv23(3), RSA_padding_add_none(3), RSA_padding_check_none(3): asymmetric encryption padding
RSA_padding_add_PKCS1_type_1(3ossl), RSA_padding_check_PKCS1_type_1(3ossl), RSA_padding_add_PKCS1_type_2(3ossl), RSA_padding_check_PKCS1_type_2(3ossl), RSA_padding_add_PKCS1_OAEP(3ossl), RSA_padding_check_PKCS1_OAEP(3ossl), RSA_padding_add_PKCS1_OAEP_mgf1(3ossl), RSA_padding_check_PKCS1_OAEP_mgf1(3ossl), RSA_padding_add_none(3ossl), RSA_padding_check_none(3ossl): asymmetric encryption padding
SCT_validate(3), SCT_LIST_validate(3), SCT_get_validation_status(3): checks Signed Certificate Timestamps (SCTs) are valid
SCT_validate(3ossl), SCT_LIST_validate(3ossl), SCT_get_validation_status(3ossl): checks Signed Certificate Timestamps (SCTs) are valid
SDL_PeepEvents(3): Checks the event queue for messages and optionally returns them
SDL_VideoModeOK(3): Check to see if a particular video mode is supported
SDL_WasInit(3): Check which subsystems are initialized
SDLmm_todo(3), todo(3): Todo List "Class SDLmm::SRect " 1c Extend the class with useful utility functions in regards to rectangles like intersections. "Class SDLmm::Surface " 1c Implement a better constructor scheme, where the first argument is a dummy class which specified what to do. This would allow a construct where a surface can be loaded from an image file without first having to create an unitialized object. "Class SDLmm::VideoInfo " 1c Build a status function allowing for easier access to the flags. This can be done using a bitfield which would allow for checking for multiple features at once
SET_CONSTRAINTS(7): set constraint check timing for the current transaction
SP_equal_group_ids(3): checks amount of data ready to be read
SP_poll(3): checks amount of data ready to be read
SRP_create_verifier_ex(3ossl), SRP_create_verifier(3ossl), SRP_create_verifier_BN_ex(3ossl), SRP_create_verifier_BN(3ossl), SRP_check_known_gN_param(3ossl), SRP_get_default_gN(3ossl): SRP authentication primitives
SSL_CTX_has_client_custom_ext(3): check whether a handler exists for a particular client extension type
SSL_CTX_has_client_custom_ext(3ossl): check whether a handler exists for a particular client extension type
SSL_CTX_use_certificate(3), SSL_CTX_use_certificate_ASN1(3), SSL_CTX_use_certificate_file(3), SSL_use_certificate(3), SSL_use_certificate_ASN1(3), SSL_use_certificate_file(3), SSL_CTX_use_certificate_chain_file(3), SSL_use_certificate_chain_file(3), SSL_CTX_use_PrivateKey(3), SSL_CTX_use_PrivateKey_ASN1(3), SSL_CTX_use_PrivateKey_file(3), SSL_CTX_use_RSAPrivateKey(3), SSL_CTX_use_RSAPrivateKey_ASN1(3), SSL_CTX_use_RSAPrivateKey_file(3), SSL_use_PrivateKey_file(3), SSL_use_PrivateKey_ASN1(3), SSL_use_PrivateKey(3), SSL_use_RSAPrivateKey(3), SSL_use_RSAPrivateKey_ASN1(3), SSL_use_RSAPrivateKey_file(3), SSL_CTX_check_private_key(3), SSL_check_private_key(3), SSL_CTX_use_cert_and_key(3), SSL_use_cert_and_key(3): load certificate and key data
SSL_CTX_use_certificate(3ossl), SSL_CTX_use_certificate_ASN1(3ossl), SSL_CTX_use_certificate_file(3ossl), SSL_use_certificate(3ossl), SSL_use_certificate_ASN1(3ossl), SSL_use_certificate_file(3ossl), SSL_CTX_use_certificate_chain_file(3ossl), SSL_use_certificate_chain_file(3ossl), SSL_CTX_use_PrivateKey(3ossl), SSL_CTX_use_PrivateKey_ASN1(3ossl), SSL_CTX_use_PrivateKey_file(3ossl), SSL_CTX_use_RSAPrivateKey(3ossl), SSL_CTX_use_RSAPrivateKey_ASN1(3ossl), SSL_CTX_use_RSAPrivateKey_file(3ossl), SSL_use_PrivateKey_file(3ossl), SSL_use_PrivateKey_ASN1(3ossl), SSL_use_PrivateKey(3ossl), SSL_use_RSAPrivateKey(3ossl), SSL_use_RSAPrivateKey_ASN1(3ossl), SSL_use_RSAPrivateKey_file(3ossl), SSL_CTX_check_private_key(3ossl), SSL_check_private_key(3ossl), SSL_CTX_use_cert_and_key(3ossl), SSL_use_cert_and_key(3ossl): load certificate and key data
SSL_check_chain(3): check certificate chain suitability
SSL_check_chain(3ossl): check certificate chain suitability
SSL_pending(3), SSL_has_pending(3): check for readable bytes buffered in an SSL object
SSL_pending(3ossl), SSL_has_pending(3ossl): check for readable bytes buffered in an SSL object
Smokeping_matchers_CheckLatency(3), Smokeping::matchers::CheckLatency(3): Edge triggered alert to check latency is under a value for x number of samples
Smokeping_matchers_CheckLoss(3), Smokeping::matchers::CheckLoss(3): Edge triggered alert to check loss is under a value for x number of samples
Smokeping_probes_passwordchecker(3), Smokeping::probes::passwordchecker(3): A Base Class for implementing SmokePing Probes
Sympa::Aliases::CheckSMTP(3Sympa): Alias management: Check addresses using SMTP
TIFFTileSize(3tiff), TIFFTileRowSize(3tiff), TIFFVTileSize(3tiff), TIFFDefaultTileSize(3tiff), TIFFComputeTile(3tiff), TIFFCheckTile(3tiff), TIFFNumberOfTiles(3tiff): tile-related utility routines
TIFFWriteDirectory(3tiff), TIFFRewriteDirectory(3tiff), TIFFCheckpointDirectory(3tiff): write the current directory in an open TIFF file
Tcl_Access.tcl85(3), Tcl_Access(3), Tcl_Stat(3): check file permissions and other attributes
Tcl_Access.tcl86(3), Tcl_Access(3), Tcl_Stat(3): check file permissions and other attributes
Tcl_Access.tcl87(3), Tcl_Access(3), Tcl_Stat(3): check file permissions and other attributes
Tcl_CommandComplete.tcl85(3), Tcl_CommandComplete(3): Check for unmatched braces in a Tcl command
Tcl_CommandComplete.tcl86(3), Tcl_CommandComplete(3): Check for unmatched braces in a Tcl command
Tcl_CommandComplete.tcl87(3), Tcl_CommandComplete(3): Check for unmatched braces in a Tcl command
Tcl_LimitAddHandler.tcl85(3), Tcl_LimitAddHandler(3), Tcl_LimitCheck(3), Tcl_LimitExceeded(3), Tcl_LimitGetCommands(3), Tcl_LimitGetGranularity(3), Tcl_LimitGetTime(3), Tcl_LimitReady(3), Tcl_LimitRemoveHandler(3), Tcl_LimitSetCommands(3), Tcl_LimitSetGranularity(3), Tcl_LimitSetTime(3), Tcl_LimitTypeEnabled(3), Tcl_LimitTypeExceeded(3), Tcl_LimitTypeReset(3), Tcl_LimitTypeSet(3): manage and check resource limits on interpreters
Tcl_LimitAddHandler.tcl86(3), Tcl_LimitAddHandler(3), Tcl_LimitCheck(3), Tcl_LimitExceeded(3), Tcl_LimitGetCommands(3), Tcl_LimitGetGranularity(3), Tcl_LimitGetTime(3), Tcl_LimitReady(3), Tcl_LimitRemoveHandler(3), Tcl_LimitSetCommands(3), Tcl_LimitSetGranularity(3), Tcl_LimitSetTime(3), Tcl_LimitTypeEnabled(3), Tcl_LimitTypeExceeded(3), Tcl_LimitTypeReset(3), Tcl_LimitTypeSet(3): manage and check resource limits on interpreters
Tcl_LimitAddHandler.tcl87(3), Tcl_LimitAddHandler(3), Tcl_LimitCheck(3), Tcl_LimitExceeded(3), Tcl_LimitGetCommands(3), Tcl_LimitGetGranularity(3), Tcl_LimitGetTime(3), Tcl_LimitReady(3), Tcl_LimitRemoveHandler(3), Tcl_LimitSetCommands(3), Tcl_LimitSetGranularity(3), Tcl_LimitSetTime(3), Tcl_LimitTypeEnabled(3), Tcl_LimitTypeExceeded(3), Tcl_LimitTypeReset(3), Tcl_LimitTypeSet(3): manage and check resource limits on interpreters
Tcl_ZlibAdler32.tcl86(3), Tcl_ZlibAdler32(3), Tcl_ZlibCRC32(3), Tcl_ZlibDeflate(3), Tcl_ZlibInflate(3), Tcl_ZlibStreamChecksum(3), Tcl_ZlibStreamClose(3), Tcl_ZlibStreamEof(3), Tcl_ZlibStreamGet(3), Tcl_ZlibStreamGetCommandName(3), Tcl_ZlibStreamInit(3), Tcl_ZlibStreamPut(3): compression and decompression functions
Tcl_ZlibAdler32.tcl87(3), Tcl_ZlibAdler32(3), Tcl_ZlibCRC32(3), Tcl_ZlibDeflate(3), Tcl_ZlibInflate(3), Tcl_ZlibStreamChecksum(3), Tcl_ZlibStreamClose(3), Tcl_ZlibStreamEof(3), Tcl_ZlibStreamGet(3), Tcl_ZlibStreamGetCommandName(3), Tcl_ZlibStreamInit(3), Tcl_ZlibStreamPut(3): compression and decompression functions
Tspi_TPM_CheckMaintenancePubKey(3), Tspi_TPM_CheckMaintenancePubKey-(3): check the public maintenance key
Typemod(3o): Type-checking of the module language and typed ast plugin hooks
X509_STORE_CTX_get_cleanup(3), X509_STORE_CTX_get_lookup_crls(3), X509_STORE_CTX_get_lookup_certs(3), X509_STORE_CTX_get_check_policy(3), X509_STORE_CTX_get_cert_crl(3), X509_STORE_CTX_get_check_crl(3), X509_STORE_CTX_get_get_crl(3), X509_STORE_CTX_get_check_revocation(3), X509_STORE_CTX_get_check_issued(3), X509_STORE_CTX_get_get_issuer(3), X509_STORE_CTX_get_verify_cb(3), X509_STORE_CTX_set_verify_cb(3), X509_STORE_CTX_verify_cb(3): get and set verification callback
X509_STORE_CTX_get_cleanup(3ossl), X509_STORE_CTX_get_lookup_crls(3ossl), X509_STORE_CTX_get_lookup_certs(3ossl), X509_STORE_CTX_get_check_policy(3ossl), X509_STORE_CTX_get_cert_crl(3ossl), X509_STORE_CTX_get_check_crl(3ossl), X509_STORE_CTX_get_get_crl(3ossl), X509_STORE_CTX_get_check_revocation(3ossl), X509_STORE_CTX_get_check_issued(3ossl), X509_STORE_CTX_get_get_issuer(3ossl), X509_STORE_CTX_get_verify_cb(3ossl), X509_STORE_CTX_set_verify_cb(3ossl), X509_STORE_CTX_verify_cb(3ossl), X509_STORE_CTX_print_verify_cb(3ossl): get and set X509_STORE_CTX components such as verification callback
X509_STORE_set_lookup_crls_cb(3), X509_STORE_set_verify_func(3), X509_STORE_get_cleanup(3), X509_STORE_set_cleanup(3), X509_STORE_get_lookup_crls(3), X509_STORE_set_lookup_crls(3), X509_STORE_get_lookup_certs(3), X509_STORE_set_lookup_certs(3), X509_STORE_get_check_policy(3), X509_STORE_set_check_policy(3), X509_STORE_get_cert_crl(3), X509_STORE_set_cert_crl(3), X509_STORE_get_check_crl(3), X509_STORE_set_check_crl(3), X509_STORE_get_get_crl(3), X509_STORE_set_get_crl(3), X509_STORE_get_check_revocation(3), X509_STORE_set_check_revocation(3), X509_STORE_get_check_issued(3), X509_STORE_set_check_issued(3), X509_STORE_get_get_issuer(3), X509_STORE_set_get_issuer(3), X509_STORE_CTX_get_verify(3), X509_STORE_set_verify(3), X509_STORE_get_verify_cb(3), X509_STORE_set_verify_cb_func(3), X509_STORE_set_verify_cb(3), X509_STORE_CTX_cert_crl_fn(3), X509_STORE_CTX_check_crl_fn(3), X509_STORE_CTX_check_issued_fn(3), X509_STORE_CTX_check_policy_fn(3), X509_STORE_CTX_check_revocation_fn(3), X509_STORE_CTX_cleanup_fn(3), X509_STORE_CTX_get_crl_fn(3), X509_STORE_CTX_get_issuer_fn(3), X509_STORE_CTX_lookup_certs_fn(3), X509_STORE_CTX_lookup_crls_fn(3): set verification callback
X509_STORE_set_lookup_crls_cb(3ossl), X509_STORE_set_verify_func(3ossl), X509_STORE_get_cleanup(3ossl), X509_STORE_set_cleanup(3ossl), X509_STORE_get_lookup_crls(3ossl), X509_STORE_set_lookup_crls(3ossl), X509_STORE_get_lookup_certs(3ossl), X509_STORE_set_lookup_certs(3ossl), X509_STORE_get_check_policy(3ossl), X509_STORE_set_check_policy(3ossl), X509_STORE_get_cert_crl(3ossl), X509_STORE_set_cert_crl(3ossl), X509_STORE_get_check_crl(3ossl), X509_STORE_set_check_crl(3ossl), X509_STORE_get_get_crl(3ossl), X509_STORE_set_get_crl(3ossl), X509_STORE_get_check_revocation(3ossl), X509_STORE_set_check_revocation(3ossl), X509_STORE_get_check_issued(3ossl), X509_STORE_set_check_issued(3ossl), X509_STORE_CTX_get1_issuer(3ossl), X509_STORE_get_get_issuer(3ossl), X509_STORE_set_get_issuer(3ossl), X509_STORE_CTX_get_verify(3ossl), X509_STORE_set_verify(3ossl), X509_STORE_get_verify_cb(3ossl), X509_STORE_set_verify_cb_func(3ossl), X509_STORE_set_verify_cb(3ossl), X509_STORE_CTX_cert_crl_fn(3ossl), X509_STORE_CTX_check_crl_fn(3ossl), X509_STORE_CTX_check_issued_fn(3ossl), X509_STORE_CTX_check_policy_fn(3ossl), X509_STORE_CTX_check_revocation_fn(3ossl), X509_STORE_CTX_cleanup_fn(3ossl), X509_STORE_CTX_get_crl_fn(3ossl), X509_STORE_CTX_get_issuer_fn(3ossl), X509_STORE_CTX_lookup_certs_fn(3ossl), X509_STORE_CTX_lookup_crls_fn(3ossl): set verification callback
X509_check_ca(3): check if given certificate is CA certificate
X509_check_ca(3ossl): check if given certificate is CA certificate
X509_check_host(3), X509_check_email(3), X509_check_ip(3), X509_check_ip_asc(3): X.509 certificate matching
X509_check_host(3ossl), X509_check_email(3ossl), X509_check_ip(3ossl), X509_check_ip_asc(3ossl): X.509 certificate matching
X509_check_issued(3): checks if certificate is apparently issued by another certificate
X509_check_issued(3ossl): checks if certificate is apparently issued by another certificate
X509_check_private_key(3), X509_REQ_check_private_key(3): check the consistency of a private key with the public key in an X509 certificate or certificate request
X509_check_private_key(3ossl), X509_REQ_check_private_key(3ossl): check the consistency of a private key with the public key in an X509 certificate or certificate request
X509_check_purpose(3): Check the purpose of a certificate
X509_check_purpose(3ossl): Check the purpose of a certificate
X509_check_trust(3), X509_TRUST_set_default(3): check whether a certificate is trusted
X509_policy_check(3), X509_policy_tree_free(3): construct X.509 valid policy tree
XIfEvent(3), XCheckIfEvent(3), XPeekIfEvent(3): check the event queue with a predicate procedure
XNextEvent(3), XPeekEvent(3), XWindowEvent(3), XCheckWindowEvent(3), XMaskEvent(3), XCheckMaskEvent(3), XCheckTypedEvent(3), XCheckTypedWindowEvent(3): select events by type
XkbOpenDisplay(3): Checks for a compatible version of the Xkb extension in both the library and the server, and initializes the extension for use
XmCreateSimpleCheckBox(3): A RowColumn widget convenience creation function "XmCreateSimpleCheckBox" "creation functions" "XmCreateSimpleCheckBox"
XmDirectionMatch(3): A function that checks for a specified direction component "XmDirectionMatch"
XmDirectionMatchPartial(3): A function that checks for a specified direction component "XmDirectionMatchPartial"
XmListItemExists(3): A List function that checks if a specified item is in the list "XmListItemExists" "List functions" "XmListItemExists"
XmVaCreateSimpleCheckBox(3): A RowColumn widget convenience creation function "XmVaCreateSimpleCheckBox" "creation functions" "XmVaCreateSimpleCheckBox"
XmtCheckPrintfFormat(3), XmtCheckPrintfFormat()(3): verify that two strings have the same printf() substitutions
XmtWorkingBoxHandleEvents(3), XmtWorkingBoxHandleEvents()(3), XmtWorkingBoxSetScaleValue()(3): check the push button and update the slider value in an XmtWorkingBox widget
XtClass(3), XtSuperclass(3), XtIsSubclass(3), XtCheckSubclass(3), XtIsObject(3), XtIsRectObj(3), XtIsWidget(3), XtIsComposite(3), XtIsConstraint(3), XtIsShell(3), XtIsOverrideShell(3), XtIsWMShell(3), XtIsVendorShell(3), XtIsTransientShell(3), XtIsTopLevelShell(3), XtIsApplicationShell(3), XtIsSessionShell(3): obtain and verify a widget's class
XtSessionGetToken(3), XtSessionReturnToken(3): token management for checkpointing
XtSetSensitive(3), XtIsSensitive(3): set and check a widget's sensitivity state
accept_check(1): Check whether a grammar accept / reject given word sequences
add_of(3): add two integers, check for arithmetic overflow
ae-cvs-ci(1), ae[hy]cvs[hy]ci(1): checkin a change set to CVS
ae-repo-ci(1), ae[hy]repo[hy]ci(1): redundant repository checkin
aede-policy(1), aede[hy]policy(1): check change set is ready for aede
afpldaptest(1): Syntactically check ldap parameters in afp.conf
al_check_inverse(3): Allegro 5 API
aliascheck(1): check for existence of mail alias
amcheck(8): run Amanda self-checks
amcheckdb(8): check Amanda database for tape consistency
amcheckdump(8): check the results of an Amanda dump
amdevcheck(8): Validate an Amanda device and volume
asn1_check_version(3): API function
asndisc(1): check ASN.1 biological sequence records for discrepancies
aspell(1): interactive spell checker
assign(3): assign an integer value, check for truncation
atf-c(3), ATF_CHECK(3), ATF_CHECK_MSG(3), ATF_CHECK_EQ(3), ATF_CHECK_EQ_MSG(3), ATF_CHECK_MATCH(3), ATF_CHECK_MATCH_MSG(3), ATF_CHECK_STREQ(3), ATF_CHECK_STREQ_MSG(3), ATF_CHECK_ERRNO(3), ATF_REQUIRE(3), ATF_REQUIRE_MSG(3), ATF_REQUIRE_EQ(3), ATF_REQUIRE_EQ_MSG(3), ATF_REQUIRE_MATCH(3), ATF_REQUIRE_MATCH_MSG(3), ATF_REQUIRE_STREQ(3), ATF_REQUIRE_STREQ_MSG(3), ATF_REQUIRE_ERRNO(3), ATF_TC(3), ATF_TC_BODY(3), ATF_TC_BODY_NAME(3), ATF_TC_CLEANUP(3), ATF_TC_CLEANUP_NAME(3), ATF_TC_HEAD(3), ATF_TC_HEAD_NAME(3), ATF_TC_NAME(3), ATF_TC_WITH_CLEANUP(3), ATF_TC_WITHOUT_HEAD(3), ATF_TP_ADD_TC(3), ATF_TP_ADD_TCS(3), atf_tc_get_config_var(3), atf_tc_get_config_var_wd(3), atf_tc_get_config_var_as_bool(3), atf_tc_get_config_var_as_bool_wd(3), atf_tc_get_config_var_as_long(3), atf_tc_get_config_var_as_long_wd(3), atf_no_error(3), atf_tc_expect_death(3), atf_tc_expect_exit(3), atf_tc_expect_fail(3), atf_tc_expect_pass(3), atf_tc_expect_signal(3), atf_tc_expect_timeout(3), atf_tc_fail(3), atf_tc_fail_nonfatal(3), atf_tc_pass(3), atf_tc_skip(3), atf_utils_cat_file(3), atf_utils_compare_file(3), atf_utils_copy_file(3), atf_utils_create_file(3), atf_utils_file_exists(3), atf_utils_fork(3), atf_utils_free_charpp(3), atf_utils_grep_file(3), atf_utils_grep_string(3), atf_utils_readline(3), atf_utils_redirect(3), atf_utils_wait(3): C API to write ATF-based test programs
atf-c++(3), ATF_ADD_TEST_CASE(3), ATF_CHECK_ERRNO(3), ATF_FAIL(3), ATF_INIT_TEST_CASES(3), ATF_PASS(3), ATF_REQUIRE(3), ATF_REQUIRE_EQ(3), ATF_REQUIRE_ERRNO(3), ATF_REQUIRE_IN(3), ATF_REQUIRE_MATCH(3), ATF_REQUIRE_NOT_IN(3), ATF_REQUIRE_THROW(3), ATF_REQUIRE_THROW_RE(3), ATF_SKIP(3), ATF_TEST_CASE(3), ATF_TEST_CASE_BODY(3), ATF_TEST_CASE_CLEANUP(3), ATF_TEST_CASE_HEAD(3), ATF_TEST_CASE_NAME(3), ATF_TEST_CASE_USE(3), ATF_TEST_CASE_WITH_CLEANUP(3), ATF_TEST_CASE_WITHOUT_HEAD(3), atf::utils::cat_file(3), atf::utils::compare_file(3), atf::utils::copy_file(3), atf::utils::create_file(3), atf::utils::file_exists(3), atf::utils::fork(3), atf::utils::grep_collection(3), atf::utils::grep_file(3), atf::utils::grep_string(3), atf::utils::redirect(3), atf::utils::wait(3): C++ API to write ATF-based test programs
atf-check(1): executes a command and analyzes its results
atf-sh(3), atf_add_test_case(3), atf_check(3), atf_check_equal(3), atf_config_get(3), atf_config_has(3), atf_expect_death(3), atf_expect_exit(3), atf_expect_fail(3), atf_expect_pass(3), atf_expect_signal(3), atf_expect_timeout(3), atf_fail(3), atf_get(3), atf_get_srcdir(3), atf_pass(3), atf_require_prog(3), atf_set(3), atf_skip(3), atf_test_case(3): POSIX shell API to write ATF-based test programs
atpdiag(1): checks atp qwk reader configuration
barman-cloud-check-wal-archive(1): Check a WAL archive destination for a new PostgreSQL cluster
bbc(1): check on BBoards
bindCDKObject(3), bindCDKObject checkCDKObjectBind cleanCDKObjectBindings unbindCDKObject getcCDKObject getchCDKObject cdk_binding(3): Curses Development Kit Character Binding Capabilities
bn_mul_words(3), bn_mul_add_words(3), bn_sqr_words(3), bn_div_words(3), bn_add_words(3), bn_sub_words(3), bn_mul_comba4(3), bn_mul_comba8(3), bn_sqr_comba4(3), bn_sqr_comba8(3), bn_cmp_words(3), bn_mul_normal(3), bn_mul_low_normal(3), bn_mul_recursive(3), bn_mul_part_recursive(3), bn_mul_low_recursive(3), bn_mul_high(3), bn_sqr_normal(3), bn_sqr_recursive(3), bn_expand(3), bn_wexpand(3), bn_expand2(3), bn_fix_top(3), bn_check_top(3), bn_print(3), bn_dump(3), bn_set_max(3), bn_set_high(3), bn_set_low(3), mul(3), mul_add(3), sqr(3): BIGNUM library internal functions
bsddialog(3), bsddialog_backtitle(3), bsddialog_clearterminal(3), bsddialog_color(3), bsddialog_color_attrs(3), bsddialog_checklist(3), bsddialog_datebox(3), bsddialog_end(3), bsddialog_form(3), bsddialog_gauge(3), bsddialog_geterror(3), bsddialog_get_theme(3), bsddialog_hascolors(3), bsddialog_infobox(3), bsddialog_init(3), bsddialog_init_notheme(3), bsddialog_initconf(3), bsddialog_menu(3), bsddialog_mixedgauge(3), bsddialog_mixedlist(3), bsddialog_msgbox(3), bsddialog_pause(3), bsddialog_radiolist(3), bsddialog_rangebox(3), bsddialog_set_theme(3), bsddialog_set_default_theme(3), bsddialog_textbox(3), bsddialog_timebox(3), bsddialog_yesno(3): TUI dialogs
bst-checkout(1): Checkout a built artifact
btcheck(1): Bittorrent downloaded data checker
bu_check_files(1): Verify the file integrity of backupuser(1) backups
cannacheck(1): Display information about Japanese input system Canna
cccheck(1): Perform static code contracts verification for CLR assemblies
check-allservice(1): Easy monitoring of a FreeBSD services
check-regexp(1): test regular expressions from the command line
checkXML5(1): An XML lint tool for KDE DocBook XML documents
check_cpu(3): Detects the CPU type. Allegro game programming library
check_hp_bladechassis(8): Nagios plugin for checking the status of HP blade enclosures via SNMP
check_puppet(1): manual page for check_puppet 1.3
check_ssl_cert(1): checks the validity of X.509 certificates
checkalias(1): check to see if an alias is defined
checkbashisms(1): check for bashisms in /bin/sh scripts
checkbrack(1): check parenthesis and bracket count
checkbutton.tk85(n), checkbutton(n): Create and manipulate checkbutton widgets
checkbutton.tk86(n), checkbutton(n): Create and manipulate 'checkbutton' boolean selection widgets
checkgroups(8): update group descriptions
checkloconorder(3): checks the consistency of a list of logical connectors man1/alc_origin.1
checkmail(1): plays a sound file when the user receives mail
checkmk(1): Awk script for generating C unit tests for use with the Check unit testing framework
checknews(1cn): check for unread news
checknr(1): check nroff/troff files
checkpassword-pam(8): PAM-based checkpassword compatible authentication
checkpc(8): check out the printcap database
checkproof(1): manual page for checkproof 2.0
checkpto(1): Helper program for Hugin's assistant
checkrad(5): -- See if a user is (still) logged in on a certain port
checksub(1): a validator for NCBI ASN.1 Seq-submit data
checkvms(1): sanity check registered Java VMs
checkvpw(1): check passwords for virtual and non-virtual users
chkascii(1): a small C program that checks whether a file is purely ASCII plain-text or else contains any non-ASCII characters
chkdvifont(1): CHecK DVI/tfm/font file and tell informations of FONTs
chkfont(6): checks figlet 2.0 and up font files for format errors
chktrust(1): Check the trust of a PE executable
ci(1): check in RCS revisions
ck4up(1): Check for Updates, a utility to monitor web pages for updates
co(1): check out RCS revisions
coap_pdu_access(3), coap_check_option(3), coap_decode_var_bytes(3), coap_decode_var_bytes8(3), coap_get_data(3), coap_opt_length(3), coap_opt_value(3), coap_option_filter_clear(3), coap_option_filter_get(3), coap_option_filter_set(3), coap_option_filter_unset(3), coap_option_iterator_init(3), coap_option_next(3), coap_pdu_get_code(3), coap_pdu_get_mid(3), coap_pdu_get_token(3), coap_pdu_get_type(3), coap_get_uri_path(3): Accessing CoAP PDUs
coqchk(1): The Coq Proof Checker compiled libraries verifier
coredns-health(7), health(7): enables a health check endpoint
coredns-ready(7), ready(7): enables a readiness check HTTP endpoint
cpl_complete_word(3), cfc_file_start(3), cfc_literal_escapes(3), cfc_set_check_fn(3), cpl_add_completion(3), cpl_file_completions(3), cpl_last_error(3), cpl_list_completions(3), cpl_recall_matches(3), cpl_record_error(3), del_CplFileConf(3), del_WordCompletion(3), new_CplFileConf(3), new_WordCompletion(3): lookup possible completions for a word
critbit0_contains(3): check whether a string is in the critbit tree
crypt_checksalt(3): validate a crypt setting string
cubehash(1): -- checksum utility
curl_easy_upkeep(3): Perform any connection upkeep checks
cvechecker(1): Attempt to identify possible vulnerable software on the system
cvereport(1): Generate an HTML report for the cvechecker output
cvscheck(1): Offline status report for files in a checked-out CVS module
cvschk(1): Quick offline CVS status checker
cxpm(1): Check an XPM (X PixMap) file, versions XPM 1, 2, or 3
d_check_proc(3): Dialog procedure implementing a check box object. Allegro game programming library
dahdi_monitor(8): checks the rx/tx levels of DAHDI channels
dbcheck(8): Bacula's Catalog Database Check/Clean program
dblink_is_busy(3): checks if connection is busy with an async query
dbverify(1): Check a Lifelines database
dc_device_set_cancel(3): callback to check whether processing should cancel
dfu-prefix(1): add, check, or remove special firmware file prefix
dfu-suffix(1): add, check, or remove DFU firmware file suffix
diskcheckd(8): daemon to check for disk read errors
diskcheckd.conf(5), diskcheckd(5): daemon to check for disk read errors
dlint(8): Internet Domain Name System (DNS) error checking utility
dns-boot-check(1): check /etc/named.boot file "dns-boot-check(1)" "check /etc/named.boot file"
dns-conf-check(1): check /etc/named.conf file "dns-conf-check(1)" "check /etc/named.conf file"
docheckgroups(8): Process checkgroups and output a list of changes
doctorj(1): Javadoc analyzer and spell-checker
dpkg-checkbuilddeps(1): check build dependencies and conflicts
dreadart(8): Extract article from spool given message-id or hash / Run validity check on articles referenced by queue file
druc(1): Design Rule Checker
dupemap(1): Creates a database of file checksums and uses it to eliminate duplicates
e2fsck(8): check a Linux ext2/ext3/ext4 file system
e2mmpstatus(8): Check MMP status of an ext4 file system
enchant(1), Enchant(1): a spellchecker
enchant-2(1), Enchant(1): a spellchecker
eof.tcl85(n), eof(n): Check for end of file condition on channel
eof.tcl86(n), eof(n): Check for end of file condition on channel
eof.tcl87(n), eof(n): Check for end of file condition on channel
exfatfsck(8): check an exFAT file system
exit_curses(3x), exit_terminfo(3x): curses memory-leak checking
expatapi(n), CheckExpatParserObj(n), CHandlerSetInstall(n), CHandlerSetRemove(n), CHandlerSetCreate(n), CHandlerSetGetUserData(n), GetExpatInfo(n): Functions to create, install and remove expat parser object extensions
explain_access_or_die(3): check permissions for a file and report errors require_index { "check permissions for a file and report errors" }
explain_feof_or_die(3): check and reset stream status and report errors require_index { "check and reset stream status and report errors" }
explain_ferror_or_die(3): check stream status and report errors require_index { "check stream status and report errors" }
explain_fileno_or_die(3): check and reset stream status and report errors require_index { "check and reset stream status and report errors" }
ezmlm-check(1): Mails back results of ezmlm list check
ezmlm-checksub(1): reject senders not subscribed to a mailing list
fdnsnamep(1): resolve an IPv4 or IPv6 address to a hostname with paranoid checking
firestring_estr_eends(3): check case-insensitively if an estring ends with an estring
firestring_estr_ends(3): check case-insensitively if an estring ends with a string
firestring_estr_estarts(3): check case-insensitively if an estring starts with an estring
firestring_estr_starts(3): check case-insensitively if an estring starts with a string
firestring_malloc(3): malloc (3) with internal result checking
firestring_realloc(3): realloc (3) with internal result checking
firestring_strdup(3): strdup (3) with internal result checking
fsck.minix(8): check consistency of Minix filesystem
fsck.zfs(8): dummy ZFS filesystem checker
fsck_hammer2(8): HAMMER2 file system consistency checker
ftnchek(1): Fortran 77 program checker
gb2sum(1), b2sum(1): compute and check BLAKE2 message digest
gcksum(1), cksum(1): compute and verify file checksums
get_sound_input_cap_bits(3): Checks which audio input sample formats are supported. Allegro game programming library
gh-pr-checkout(1): Check out a pull request in git
gh-pr-checks(1): Show CI status for a single pull request
git-annex(1): manage files with git, without checking their contents in
git-annex-checkpresentkey(1): check if key is present in remote
git-annex-matchexpression(1): checks if an expression matches
git-check-attr(1): Display gitattributes information
git-check-ignore(1): Debug gitignore / exclude files
git-check-mailmap(1): Show canonical names and email addresses of contacts
git-check-ref-format(1): Ensures that a reference name is well formed
git-checkout(1): Switch branches or restore working tree files
git-checkout-index(1): Copy files from the index to the working tree
git-cvsexportcommit(1): Export a single commit to a CVS checkout
git-lfs-checkout(1): Update working copy with file content if available
git-lfs-fsck(1): Check GIT LFS files for consistency
git-lfs-pointer(1): Build, compare, and check pointers
git-lfs-post-checkout(1): Git post-checkout hook implementation
git-lfs-pull(1): Download all Git LFS files for current ref & checkout
git-mr(1): Checks out a merge request locally
git-pr(1): Checks out a pull request locally
git-sparse-checkout(1): Reduce your working tree to a subset of tracked files
git-verify-commit(1): Check the GPG signature of commits
git-verify-tag(1): Check the GPG signature of tags
gmd5sum(1), md5sum(1): compute and check MD5 message digest
gnupod_check.pl(1): manual page for gnupod_check.pl 1.00
gnutls_check_version(3): API function
gnutls_db_check_entry(3): API function
gnutls_db_check_entry_expire_time(3): API function
gnutls_db_check_entry_time(3): API function
gnutls_ocsp_resp_check_crt(3): API function
gnutls_ocsp_status_request_is_checked(3): API function
gnutls_pkcs11_token_check_mechanism(3): API function
gnutls_record_check_corked(3): API function
gnutls_record_check_pending(3): API function
gnutls_x509_crl_check_issuer(3): API function
gnutls_x509_crt_check_email(3): API function
gnutls_x509_crt_check_hostname(3): API function
gnutls_x509_crt_check_hostname2(3): API function
gnutls_x509_crt_check_ip(3): API function
gnutls_x509_crt_check_issuer(3): API function
gnutls_x509_crt_check_key_purpose(3): API function
gnutls_x509_crt_check_revocation(3): API function
gnutls_x509_name_constraints_check(3): API function
gnutls_x509_name_constraints_check_crt(3): API function
gnutls_x509_tlsfeatures_check_crt(3): API function
gpathchk(1), pathchk(1): check whether file names are valid or portable
gpg-check-pattern(1): Check a passphrase on stdin against the patternfile
grub-file(1): check file type
grub-script-check(1): check grub.cfg for syntax errors
gsasl_check_version(3): API function
gsha1sum(1), sha1sum(1): compute and check SHA1 message digest
gsha224sum(1), sha224sum(1): compute and check SHA224 message digest
gsha256sum(1), sha256sum(1): compute and check SHA256 message digest
gsha384sum(1), sha384sum(1): compute and check SHA384 message digest
gsha512sum(1), sha512sum(1): compute and check SHA512 message digest
gsum(1), sum(1): checksum and count the blocks in a file
gtest(1), test(1): check file types and compare values
hbiff(1): check for incoming mail using X11
header_checks(5): Postfix built-in content inspection
hspell(1): Hebrew spellchecker
hspell(3): Hebrew spellchecker (C API)
hunspell(1): spell checker, stemmer and morphological analyzer
hunspell(3): spell checking, stemming, morphological generation and analysis
hx509_revoke(3): hx509 revokation checking functions
icepatch2calc(1): IcePatch2 tool to compress files and calculate checksums
idn2_check_version(3): API function
idn_checkname(3): validate an internationalized domain name
idn_setlocalcheckfile(3): read local code point set from a file
idncheck(1): check an internationalized domain name
iftocc(1): check for blind carbon copies
ikiwiki-makerepo(1): check an ikiwiki srcdir into revision control
inncheck(8): Check INN configuration and database files
is_compatible_font(3): Check if two fonts are of the same type. Allegro game programming library
isic(1), ISIC(1): IP Stack Integrity Checker
issndfile(1): checks if a file is in a recognized audio file format
jack_wait(1): JACK toolkit client to check and wait for existence/exit of jackd
jk_check(8): a utility that will check a jail for security problems
jose-jwk-eql(1): Checks if two keys are equal
k_hasafs(3), k_hasafs_recheck(3), k_pioctl(3), k_unlog(3), k_setpag(3), k_afs_cell_of_file(3), kafs_set_verbose(3), kafs_settoken_rxkad(3), kafs_settoken(3), krb_afslog(3), krb_afslog_uid(3), kafs_settoken5(3), krb5_afslog(3), krb5_afslog_uid(3): AFS library
key_defined(3x): check if a keycode is defined
keyboard_keypressed(3): check if a key is pressed when in raw keyboard mode
krb5_c_block_size(3), krb5_c_decrypt(3), krb5_c_encrypt(3), krb5_c_encrypt_length(3), krb5_c_enctype_compare(3), krb5_c_get_checksum(3), krb5_c_is_coll_proof_cksum(3), krb5_c_is_keyed_cksum(3), krb5_c_keylength(3), krb5_c_make_checksum(3), krb5_c_make_random_key(3), krb5_c_set_checksum(3), krb5_c_valid_cksumtype(3), krb5_c_valid_enctype(3), krb5_c_verify_checksum(3), krb5_c_checksum_length(3): Kerberos 5 crypto API
krb5_check_transited(3), krb5_check_transited_realms(3), krb5_domain_x500_decode(3), krb5_domain_x500_encode(3): realm transit verification and encoding/decoding functions
krb5_checksum(3), krb5_checksum_disable(3), krb5_checksum_is_collision_proof(3), krb5_checksum_is_keyed(3), krb5_checksumsize(3), krb5_cksumtype_valid(3), krb5_copy_checksum(3), krb5_create_checksum(3), krb5_crypto_get_checksum_type krb5_free_checksum(3), krb5_free_checksum_contents(3), krb5_hmac(3), krb5_verify_checksum(3): creates, handles and verifies checksums
krb5_pwcheck(3), kadm5_setup_passwd_quality_check(3), kadm5_add_passwd_quality_verifier(3), kadm5_check_password_quality(3): Heimdal warning and error functions
ktcheck(1): verify and download command file and transcripts
kzonecheck(1): Knot DNS zone check tool rst2man-indent-level 0 1 rstReportMargin \$1
lacheck(1): a consistency checker for LaTeX documents
lcksum(1): verifies a transcript's checksums and file sizes
ldif-duplicate-attrs(1): check for multi-value attributes in LDIF file
ldns_buffer_remaining_at(3), ldns_buffer_remaining(3), ldns_buffer_available_at(3), ldns_buffer_available(3), ldns_buffer_status(3), ldns_buffer_status_ok(3): check buffer status
ldns_dname_is_subdomain(3), ldns_dname_str_absolute(3), ldns_dname_label(3): check properties of dnames
ldverify(1): MAME laserdisc data checker
lepton-symcheck(1): Lepton EDA Symbol Checker
libchk(1): checks shared library links of binaries
libmagic(3), magic_open(3), magic_close(3), magic_error(3), magic_errno(3), magic_descriptor(3), magic_buffer(3), magic_getflags(3), magic_setflags(3), magic_check(3), magic_compile(3), magic_list(3), magic_load(3), magic_load_buffers(3), magic_setparam(3), magic_getparam(3), magic_version(3): Magic number recognition library
libmemcached_check_configuration(3): libmemcached Documentation rst2man-indent-level 0 1 rstReportMargin \$1
libowfat_imult16(3), imult16(3): integer multiplication with overflow checking
libowfat_imult32(3), imult32(3): integer multiplication with overflow checking
libowfat_imult64(3), imult64(3): integer multiplication with overflow checking
libowfat_io_check(3), io_check(3): check for new readable or writable descriptors
libowfat_range_arrayinbuf(3), range_arrayinbuf(3): range check for array in buffer
libowfat_range_bufinbuf(3), range_bufinbuf(3): range check for buf in buffer
libowfat_range_ptrinbuf(3), range_ptrinbuf(3): range check pointer in buffer
libowfat_range_str2inbuf(3), range_str2inbuf(3): range check for string in buffer
libowfat_range_str4inbuf(3), range_str4inbuf(3): range check for string in buffer
libowfat_range_strinbuf(3), range_strinbuf(3): range check for string in buffer
libowfat_range_validbuf(3), range_validbuf(3): range check buffer
libowfat_rangecheck(3), rangecheck.h(3): pointer range checking
libowfat_stralloc_diffs(3), stralloc_diffs(3): check if string is prefix of stralloc
libowfat_stralloc_starts(3), stralloc_starts(3): check if string is prefix of stralloc
libowfat_umult16(3), umult16(3): integer multiplication with overflow checking
libowfat_umult32(3), umult32(3): integer multiplication with overflow checking
libowfat_umult64(3), umult64(3): integer multiplication with overflow checking
libssh2_channel_eof(3): check a channel's EOF status
libssh2_channel_window_read_ex(3): Check the status of the read window
libssh2_channel_window_write_ex(3): Check the status of the write window
libssh2_knownhost_check(3): check a host+key against the list of known hosts
libssh2_knownhost_checkp(3): check a host+key against the list of known hosts
libssh2_poll_channel_read(3): check if data is available
lightning-check(7): Command for verifying parameters
lightning-checkmessage(7): Command to check if a signature is from a node
lightning-ping(7): Command to check if a node is up
lizardfs-checkfile(1): print information about chunks
llvm-tli-checker-devel(1), llvm-tli-checker(1): TargetLibraryInfo vs library checker
llvm-tli-checker14(1), llvm-tli-checker(1): TargetLibraryInfo vs library checker
llvm-tli-checker15(1), llvm-tli-checker(1): TargetLibraryInfo vs library checker
localgroups(5), docheckgroups(5): Process checkgroups and output a list of changes
lockfile_create(3), lockfile_remove(3), lockfile_touch(3), lockfile_check(3): manage lockfiles
logcheck(8): program to scan system logs for interesting lines
logcheck-test(1): test new logcheck rules easily
lou_checkhyphens(1): Check the accuracy of hyphenation in liblouis Braille translation tables
lou_checktable(1): Test a liblouis Braille translation table
lou_checkyaml(1): A tool to check Braille tests defined in a YAML file
makepp_build_check(1): -- How makepp decides to rebuild files
manck(1): check manual pages
mcelog(8): Decode kernel machine check log on x86 machines
mdbx_chk(1): MDBX checking tool
memoverlap(3): check whether two memory blocks overlap
metalink_checksum_t(3): The structure that holds a hash value of an entire resource
metalink_chunk_checksum_t(3): The structure that holds piece hashes for a resource
mfont_check(3m17n): Check the usability of a font
mfont_match_p(3m17n): Check is a font matches with a font spec
mfschunktool(8): checks chunk integrity offline
milter-performance-check(1): MTA performance check program
miredo-checkconf(8): Miredo configuration file syntax checking tool
mitem_visible(3x): check visibility of a menu item
mkc_check_compiler(1): checks for C and C++ compiler type
mkc_check_custom(1): run user's custom checks
mkc_check_decl(1): checks for define, variable, function, type, member or function prototype
mkc_check_funclib(1): detects presense of function in a library
mkc_check_header(1): detects presense of header file
mkc_check_prog(1): detects presense of header file
mkc_check_sizeof(1): detects a sizeof(type)
moka(1), MOKA(1): Model checker ancestor man1/alc_origin.1
mono-shlib-cop(1): Shared Library Usage Checker
mopchk(1): MOP Check Utility
mp3ck(1): MPEG stream consistency check
mpck(1): check MPEG audio files
msgchk(1): nmh's check for incoming email
mstlink(1): check and debug link status and issues related to them
msymbol_is_managing_key(3m17n): Check if a symbol is a managing key
mtbl_crc32c(3): calculate CRC32C checksum
munin-limits(8): A program to check for any off-limit values
mydnscheck(8): Check zone data for consistency and syntax
named-checkconf(1): named configuration file syntax checking tool
named-checkconf(8): named configuration file syntax checking tool
named-checkzone(1): zone file validity checking or converting tool
named-checkzone(8): zone file validity checking or converting tool
named-compilezone(1): zone file validity checking or converting tool
named-compilezone(8): zone file validity checking or converting tool
named-rrchecker(1): syntax checker for individual DNS resource records
netstiff(1): powerful and easy tool to check for Web and FTP updates
newsaux(8cn), spacefor(8cn): check available space for news queuelen - get length of outbound-news uucp queues sizeof - get size of file(s) for news ctime, getabsdate - convert dates to and from internal representation for news newshostname - get host name for news gngp - search text using a newsgroup pattern canonhdr - extract header and canonicalize newslock - do locking for news
nncheck(1): check for unread articles
nsd-checkconf(8): NSD configuration file checker
nsd-checkzone(8): NSD zone file syntax checker
nslint(8): perform consistency checks on dns files
ntfsfix(8): fix common errors and force Windows to check NTFS
oath_check_version(3): API function
ocf_heartbeat_gcp-ilb(7): Replies to health checks from Google Cloud
ocspcheck(8): check a certificate for validity against its OCSP responder
ods-kaspcheck(1): Performs a sanity check of the policy for OpenDNSSEC
ogginfo(1): gives information about Ogg files, and does extensive validity checking
opam(1): adminN'45'check N'45' Runs some consistency checks on a repository
opam-lint(1), opamN'45'lint(1): N'45' Checks and validate package description (N'39'opamN'39') filesN'46'
opendmarc-check(8): DMARC record check tool
openslide-quickhash1sum(1): Print OpenSlide quickhash-1 checksums
opusinfo(1): gives information about Opus files and does extensive validity checking
ots-perf(1): performance checker
ots-side-by-side(1): font quality checker
ots-validator-checker(1): font validation checker
page_revoke(3): Revocation methods There are two revocation method for PKIX/X.509: CRL and OCSP. Revocation is needed if the private key is lost and stolen. Depending on how picky you are, you might want to make revocation for destroyed private keys too (smartcard broken), but that should not be a problem. CRL is a list of certifiates that have expired. OCSP is an online checking method where the requestor sends a list of certificates to the OCSP server to return a signed reply if they are valid or not. Some services sends a OCSP reply as part of the hand-shake to make the revoktion decision simpler/faster for the client
panda_checkinfo(3): ensure an info object exists
pandora_server(1): the Pandora FMS element in charge of performing the existing checks
pbs_checkpointjob(3): checkpoint a pbs batch job
pca_lookup_file(3), del_PathCache(3), del_PcaPathConf(3), new_PathCache(3), new_PcaPathConf(3), pca_last_error(3), pca_path_completions(3), pca_scan_path(3), pca_set_check_fn(3), ppc_file_start(3), ppc_literal_escapes(3): lookup a file in a list of directories
pcap_can_set_rfmon(3): check whether monitor mode can be set for a not-yet-activated capture handle
pcap_offline_filter(3): check whether a filter matches a packet
pcheck(1): popcheck client
pcheckd(8): Checks for mail in maildir mailboxes
peochk(8): Initial key generator and integrity log file checker
pepack(1): check if a PE file is packed
perpok(8): check a perpd (8) service
pesec(1): check for protections in PE files
pg_amcheck(1): checks for corruption in one or more PostgreSQL databases
pg_checksums(1): enable, disable or check data checksums in a PostgreSQL database cluster
pg_isready(1): check the connection status of a PostgreSQL server
pg_verify_checksums(1): verify data checksums in a PostgreSQL database cluster
pkg-check(8), pkg check(8): sanity check installed packages
pkg_libchk(1): check packages for links against missing libraries
pmcanon(1): put a news article in canonical format for signature checking
pmcheck(1): check veracity and applicability of signatures in news articles
pmdaemon(1): Automatically check postings to newsgroups
pmem_flush(3), pmem_flush()(3), pmem_drain()(3), pmem_persist()(3), pmem_msync()(3), pmem_deep_flush()(3), pmem_deep_drain()(3), pmem_deep_persist()(3), pmem_has_hw_drain()(3), pmem_has_auto_flush()(3): check persistency, store persistent data and delete mappings
pmem_is_pmem(3), pmem_is_pmem()(3), pmem_map_file()(3), pmem_unmap()(3): check persistency, create and delete mappings
pmemblk_bsize(3), pmemblk_bsize()(3), pmemblk_nblock()(3): check number of available blocks or usable space in block memory pool
pmemblk_create(3), pmemblk_create()(3), pmemblk_open()(3), pmemblk_close()(3), pmemblk_check()(3): create, open, close and validate block pool
pmemlog_create(3), pmemlog_create()(3), pmemlog_open()(3), pmemlog_close()(3), pmemlog_check()(3): create, open, close and validate persistent memory resident log file
pmemlog_nbyte(3), pmemlog_nbyte()(3): checks the amount of usable space in the log pool
pmemlog_tell(3), pmemlog_tell()(3), pmemlog_rewind()(3), pmemlog_walk()(3): checks current write point for the log or walks through the log
pmemobj_open(3), pmemobj_open()(3), pmemobj_create()(3), pmemobj_close()(3), pmemobj_check()(3): create, open, close and validate persistent memory transactional object store
pmempool-check(1): check and repair persistent memory pool
pmempool_check_init(3), pmempool_check_init()(3), pmempool_check()(3), pmempool_check_end()(3): checks pmempool health
poll_scroll(3): Checks the status of a scroll request with triple buffering. Allegro game programming library
popcheck(1): see (and possibly delete) messages waiting on a POP server
powerline-lint(1): Powerline configuration checker
ppscheck(8): tool to check a serial port for PPS
proxycheck(1): open proxy server checker
pskc_check_version(3): API function
pskc_get_key_algparm_chall_checkdigits(3): API function
pskc_get_key_algparm_resp_checkdigits(3): API function
pskc_set_key_algparm_chall_checkdigits(3): API function
pskc_set_key_algparm_resp_checkdigits(3): API function
pullcves(1): Update the local cvechecker CVE database and version matching rules
pure-quotacheck(8): Update virtual quota files for Pure-FTPd
pvm_probe(3): Check if message has arrived
pwned-check(1): Check word against list of known stolen passwords
pwscore(1): simple configurable tool for checking quality of a password
qchkpt(1): checkpoint pbs batch jobs
qconfirm-accept(1): confirms delivery of pending messages held by qconfirm-check
qconfirm-cdb-check(1): match a mail address against a constant database
qconfirm-cdb-update(1): maintain a constant database for the use with qconfirm-cdb-check(1)
qconfirm-check(1): request delivery confirmation under qmail
qconfirm-check-mid(1): checks headers of a mail message for known references
qconfirm-return(1): handles bounces from qconfirm-check(1)
qmail-rblchk(1): filter all incoming mail and check if it comes from RBL listed IPs
rabbitmq-diagnostics(8): RabbitMQ diagnostics, monitoring and health checks tools
rblcheck(1), rblckeck(1): DNSBL lookup utility
recfix(1): check a recfile for errors
rendercheck(1): simple tests of the X Render extension
resource(3), resource (3): Check if the requested resource path exists
restic-check(1): Check the repository for errors
rhash(1): calculate/check CRC32, MD5, SHA1, GOST, TTH, BTIH or other message digests
rlegrid(1): create grids and checkerboards in rle format
romcmp(1): MAME rom and romsets check and comparison tool
rpslcheck(1): an RPSL syntax checker
rwpackchecker(8): Find unusual patterns that may indicate a corrupt file
rzxcheck(1): Check the signature in a ZX Spectrum RZX file
sam_hc_callback_register(3): Register health check callback
sam_hc_send(3): Send health check confirmation
sam_initialize(3): Initialize health checking
sam_register(3), sam_rehister(3): Register component for health checking
sam_start(3): Start health checking
sam_stop(3): Stop health checking
samhain(8): check file integrity
samtools-quickcheck(1), samtools quickcheck(1): a rapid sanity check on input files EX in +\$1 nf ft CR . EE ft fi in
sasl_checkapop(3): Cyrus SASL documentation rst2man-indent-level 0 1 rstReportMargin \$1
sasl_checkpass(3): Cyrus SASL documentation rst2man-indent-level 0 1 rstReportMargin \$1
sasl_server_userdb_checkpass_t(3): Cyrus SASL documentation rst2man-indent-level 0 1 rstReportMargin \$1
scls(1): The scls program is used to list objects in checkpoint files
scpr(1): The scpr program is used to print out objects in checkpoint files
scsi_mandat(8): check SCSI device support for mandatory commands
scsi_satl(8): check SCSI to ATA Translation (SAT) device support
sgmlcheck(1): check the syntax of an LinuxDoc DTD sgml source file
shtk_bool_check(3): Converts a string to a boolean value
shtk_config_has(3): Checks if a configuration variable is set
shtk_cvs_checkout(3): Checks out a new working copy out of a CVS repository
shtk_cvs_fetch(3): Checks out or updates a CVS working copy
shtk_list_contains(3): Checks if an item appears in a list
shtk_unittest_assert_equal(3): Fatal equality check between two values
shtk_unittest_assert_not_equal(3): Fatal inequality check between two values
shtk_unittest_expect_equal(3): Non-fatal equality check between two values
shtk_unittest_expect_file(3): Non-fatal check to validate the contents of a file
shtk_unittest_expect_not_equal(3): Non-fatal inequality check between two values
shtk_version(3), version(3): Utilities to check the running version of shtk
shtk_version_at_least(3): Checks if shtk is a minimum version
shtk_version_at_most(3): Checks if shtk is a maximum version
shtk_version_is(3): Checks if shtk is a specific version
slapacl(8): Check access to a list of attributes
slapauth(8): Check a list of string-represented IDs for LDAP authc/authz
slapdn(8): Check a list of string-represented LDAP DNs based on schema syntax
slapschema(8): SLAPD in-database schema checking utility
slaptest(8): Check the suitability of the OpenLDAP slapd configuration
slick-greeter-check-hidpi(1): distro agnostic LightDM greeter
smidiff(1): check differences between a pair of SMI or SPPI modules
smilint(1): syntax and semantic checks of SMIv1/v2 and SPPI modules
smtpdcheck(1): check SMTP servers
smtprc(1): SMTP Relay Checker
sntpclock(1): check a system's clock through NTP
socklog-check(8): checks for the availability of a socklog(8) service
splint(1): A tool for statically checking C programs
stalepid(1): check for and remove stale process ID files
stringprep_check_version(3): API function
stroverlap(3): check whether two strings overlap
sub_of(3): subtract two integers, check for arithmetic overflow
surblhost(1): check if hostnames are blacklisted by surbl.org
svok(8): checks whether supervise (8) is running
svup(8): checks whether supervise (8) has started a service
sympa-check(1): Check environment
sysconftoolcheck(1): check a sysconftool configuration file
t1lint(1): check a PostScript Type 1 font for correctness
taiclock(1): check a system's clock through TAICLOCK
tclCheck(1): check bracket nesting for tcl programs
tcprulescheck(1): checks tcprules
tcxmlcheck(1): Check information in smil input file
testparm(1): check an smb.conf configuration file for internal correctness
ticc_commandline(1): A class for parsing and checking commandlines
tidy(1): check, correct, and pretty-print HTML(5) files
tixCheckList(n): Create and manipulate tixCheckList widgets '" '" '" '"
tld_check_4(3): API function
tld_check_4t(3): API function
tld_check_4tz(3): API function
tld_check_4z(3): API function
tld_check_8z(3): API function
tld_check_lz(3): API function
tpm2_checkquote(1), tpm2_checkquote(1)(1): Validates a quote provided by a TPM
tripwire(8): a file integrity checker for UNIX-like systems
tthsum(1): (hy generates or checks TTH message digests
ttk::checkbutton.tk85(n), ttk::checkbutton(n): On/off widget
ttk_checkbutton.tk86(n), ttk::checkbutton(n): On/off widget
unbound-checkconf(8): Check Unbound configuration file for errors
unw_is_fpreg(3): -- check if a register is a floating-point register
unw_is_signal_frame(3): -- check if current frame is a signal frame
upscli_ssl(3): Check SSL mode for current connection
use_legacy_coding(3x): override locale-encoding checks
utf8kind(3), utf8kind (3): Quick check an offset into a string
valid_vid(3), valid_vid (3): Check if vid matches a valid object or not, also accepts NULL/BADID arguments
verify_krb5_conf(8): checks krb5.conf for obvious errors
vmem_create(3), vmem_create()(3), vmem_create_in_region()(3), vmem_delete()(3), vmem_check()(3), vmem_stats_print()(3): volatile memory pool management
voice_check(3): Checks whether a voice is currently allocated. Allegro game programming library
waffle_is_extension_in_string(3): Check if a name appears in an OpenGL-style extension string
webpinfo(1): print out the chunk level structure of WebP files along with basic integrity checks
woob-smtp(1): daemon to send and check messages
xalloc(l), xrealloc(l): memory allocation with simple error check
xapian-check(1): Check the consistency of a database or table
xcb_query_extension(3): check if extension is present
xfs_ncheck(8): generate pathnames from i-numbers for XFS
xine-check(1): a checker for the xine video player
xmailbox(1): mailbox checker for X using XPM icons
xmailwatcher(1): -- periodically check for mail
xrdadler32(1): compute and display an adler32 checksum
xxhsum(1): print or check xxHash non-cryptographic checksums
yafic(1): -- yet another file integrity checker
yafic-sign(1): yafic-check -- Signature utilities for yafic(1)
zmq_has(3): check a ZMQ capability
zpool-checkpoint(8): check-point current ZFS storage pool state
Algorithm::CheckDigits(3): Perl extension to generate and test check digits
Algorithm::CheckDigits::M07_001(3), CheckDigits::M07_001(3): compute check digits modulo 7 method 1
Algorithm::CheckDigits::M09_001(3), CheckDigits::M09_001(3): compute check digits for Euro notes
Algorithm::CheckDigits::M10_001(3), CheckDigits::M10_001(3): compute check digits for Bahncard (DE), IMEI, IMEISV, ISIN, Miles&More, Payback (DE), Personnummer (SE), Passport (BR), Credit Cards, SSN (US), Samordningsnummer (SE), VAT RN (ES), VAT RN (IT), VAT RN (SE), International Securities Identifikation Number (ISIN), CUSIP
Algorithm::CheckDigits::M10_002(3), CheckDigits::M10_002(3): compute check digits for CINS (US), SIREN (FR), SIRET (FR)
Algorithm::CheckDigits::M10_003(3), CheckDigits::M10_003(3): compute check digits for ISMN
Algorithm::CheckDigits::M10_004(3), CheckDigits::M10_004(3): compute check digits for 2aus5, EAN, ILN, ISBN13, NVE
Algorithm::CheckDigits::M10_005(3), CheckDigits::M10_005(3): compute check digits for Deutsche Post Identcode/Leitcode (DE)
Algorithm::CheckDigits::M10_006(3), CheckDigits::M10_006(3): compute check digits for Rentenversicherung (DE)
Algorithm::CheckDigits::M10_008(3), CheckDigits::M10_008(3): compute check digits for Sedol (GB)
Algorithm::CheckDigits::M10_009(3), CheckDigits::M10_009(3): compute check digits for Betriebsnummer (DE)
Algorithm::CheckDigits::M10_010(3), CheckDigits::M10_010(3): compute check digits for Postscheckkonti (CH)
Algorithm::CheckDigits::M10_011(3), CheckDigits::M10_011(3): compute check digits UPS (US)
Algorithm::CheckDigits::M11_001(3), CheckDigits::M11_001(3): compute check digits for ISBN, ISSN, VAT RN (PT), HKID (HK), Wagon number (BR), NHS (GB), VAT (SL)
Algorithm::CheckDigits::M11_002(3), CheckDigits::M11_002(3): compute check digits for PZN (DE)
Algorithm::CheckDigits::M11_003(3), CheckDigits::M11_003(3): compute check digits for PKZ (GDR)
Algorithm::CheckDigits::M11_004(3), CheckDigits::M11_004(3): compute check digits for CPF (BR), Titulo Eleitoral (BR)
Algorithm::CheckDigits::M11_006(3), CheckDigits::M11_006(3): compute check digits for Codigo de Cuenta Corriente (ES)
Algorithm::CheckDigits::M11_007(3), CheckDigits::M11_007(3): compute check digits for VAT Registration Number (FI)
Algorithm::CheckDigits::M11_008(3), CheckDigits::M11_008(3): compute check digits for VAT Registration Number (DK)
Algorithm::CheckDigits::M11_009(3), CheckDigits::M11_009(3): compute check digits NRIC (SG)
Algorithm::CheckDigits::M11_010(3), CheckDigits::M11_010(3): compute check digits AHV number (CH)
Algorithm::CheckDigits::M11_011(3), CheckDigits::M11_011(3): compute check digits for VAT Registration Number (NL)
Algorithm::CheckDigits::M11_012(3), CheckDigits::M11_012(3): compute check digits for Bundeswehrpersonenkennnummer (DE)
Algorithm::CheckDigits::M11_013(3), CheckDigits::M11_013(3): compute check digits for VAT Registration Number (GR)
Algorithm::CheckDigits::M11_015(3), CheckDigits::M11_015(3): compute check digits for ESR5 (CH)
Algorithm::CheckDigits::M11_016(3), CheckDigits::M11_016(3): compute check digits vor VAT Registration Number (PL)
Algorithm::CheckDigits::M11_017(3), CheckDigits::M11_017(3): compute check digits for EC-No, EINECS, ELINCS
Algorithm::CheckDigits::M16_001(3), CheckDigits::M16_001(3): compute check digits for ISAN
Algorithm::CheckDigits::M23_001(3), CheckDigits::M23_001(3): compute check digits for DNI (ES)
Algorithm::CheckDigits::M23_002(3), CheckDigits::M23_002(3): compute check digits for Tax Identification Number (IE)
Algorithm::CheckDigits::M43_001(3), CheckDigits::M43_001(3): compute check digits for Code-39
Algorithm::CheckDigits::M89_001(3), CheckDigits::M89_001(3): compute check digits for VAT Registration Number (LU)
Algorithm::CheckDigits::M97_001(3), CheckDigits::M97_001(3): compute check digits for VAT Registration Number (BE)
Algorithm::CheckDigits::M97_002(3), CheckDigits::M97_002(3): compute check digits for International Bank Account Number (IBAN)
Algorithm::CheckDigits::MBase_001(3), CheckDigits::MBase_001(3): compute check digits for UPC (US)
Algorithm::CheckDigits::MBase_002(3), CheckDigits::MBase_002(3): compute check digits for blood bags (DE), BZU (DE), VAT Registration Number (DE)
Algorithm::CheckDigits::MBase_003(3), CheckDigits::MBase_003(3): compute check digits for SICI (Serial Item and Contribution Identifier)
Algorithm::CheckDigits::MXX_001(3), CheckDigits::MXX_001(3): compute check digits for german Personalausweis (pa_de) or ABA routing numbers (aba_rn)
Algorithm::CheckDigits::MXX_002(3), CheckDigits::MXX_002(3): compute check digits for CAS
Algorithm::CheckDigits::MXX_003(3), CheckDigits::MXX_003(3): compute check digits for DEM
Algorithm::CheckDigits::MXX_004(3), CheckDigits::MXX_004(3): compute check digits for VAT RN (AT)
Algorithm::CheckDigits::MXX_005(3), CheckDigits::MXX_005(3): compute check digits for ESR9 (CH)
Algorithm::CheckDigits::MXX_006(3), CheckDigits::MXX_006(3): compute check digits with Verhoeff scheme
Algorithm::Evolutionary::Op::Convergence_Terminator(3), Algorithm::Evolutionary::Op::Convergence_Terminator (3): Checks for termination of an algorithm, returns true if a certain percentage of the population is the same
Algorithm::Evolutionary::Op::DeltaTerm(3), Algorithm::Evolutionary::Op::DeltaTerm(3): Termination condition for an algorithm; checks that the difference of the best to a target is less than a delta
Algorithm::Evolutionary::Op::GenerationalTerm(3), Algorithm::Evolutionary::Op::GenerationalTerm (3): Checks for termination of an algorithm
Algorithm::Evolutionary::Op::NoChangeTerm(3), Algorithm::Evolutionary::Op::NoChangeTerm(3): Checks for termination of an algorithm; terminates when several generations transcur without change
Algorithm::LUHN(3): Calculate the Modulus 10 Double Add Double checksum
Alien::Build::Plugin::Digest::SHA(3): Plugin to check SHA digest with Digest::SHA
Alien::Build::Plugin::Digest::SHAPP(3): Plugin to check SHA digest with Digest::SHA::PurePerl
AnyEvent::Filesys::Notify::Role::Fallback(3): Fallback method of file watching (check in regular intervals)
App::FatPacker::Trace(3): Tracing module usage using compilation checking
App::GitGot::Command::checkout(3): checkout specific branch for managed repositories
App::GitGot::Command::that(3): check if a given repository is managed
App::GitGot::Command::this(3): check if the current repository is managed
App::Sqitch::Command::check(3), Header "Name" App::Sqitch::Command::check(3): Runs various checks and prints a report
App::Sqitch::Command::checkout(3), Header "Name" App::Sqitch::Command::checkout(3): Revert, change checkout a VCS branch, and redeploy
App::Sqitch::Role::DBIEngine(3), Header "Name" App::Sqitch::Command::checkout(3): An engine based on the DBI
Astro::Catalog::Query::MPC(3): A query request to the Minor Planet Center's Minor Planet Checker
Authen::Simple::Password(3): Simple password checking
B::COW(3): B::COW additional B helpers to check COW status
B::Hooks::OP::Check(3): Wrap OP check callbacks
B::Hooks::OP::Check::EntersubForCV(3): Invoke callbacks on construction of entersub OPs for certain CVs
B::OPCheck(3): PL_check hacks using Perl callbacks
Business::CreditCard(3), "Business::CreditCard"(3): Validate/generate credit card checksums/names
Business::OnlinePayment::2CheckOut(3): 2CheckOut backend for Business::OnlinePayment
CGI::ArgChecker(3): An extensible CGI parameter validation module (allowing commonly used checks on parameters to be called more concisely and consistently)
CPAN::Checksums(3): Write a "CHECKSUMS" file for a directory as on CPAN
CPAN::Meta::Check(3): Verify requirements in a CPAN::Meta object
CPAN::Reporter::PrereqCheck(3): Modulino for prerequisite tests
CPAN::Testers::Common::Client::PrereqCheck(3): Modulino for prerequisite tests
CPANPLUS::Module::Checksums(3): checking the checksum of a distribution
CSS::Sass::Value(3): Data Types for custom Sass Functions n .SH "Mapping ""Sass_Values"" to perl data structures" .SH "Mapping Sass_Values to perl data structures" Header "Mapping Sass_Values to perl data structures" You can use maps and lists like normal hash or array references. Lists can have two different separators used for stringification. This is detected by checking if the object is derived from CSS::Sass::Value::List::Space. The default is a comma separated list, which you get by instantiating CSS::Sass::Value::List or CSS::Sass::Value::List::Comma. my $null = CSS::Sass::Value->new(undef); # => null my $number = CSS::Sass::Value->new(42.35); # => 42.35 my $string = CSS::Sass::Value->new("foobar"); # => foobar my $map = CSS::Sass::Value->new({ key => "foobar" }); # key: foobar my $list = CSS::Sass::Value->new([ "foo", 42, "bar" ]); # foo, 42, bar my $space = CSS::Sass::Value::List::Space->new("foo", "bar"); # foo bar my $comma = CSS::Sass::Value::List::Comma->new("foo", "bar"); # foo, bar You can also return these native perl types from custom functions. They will automatically be upgraded to real CSS::Sass::Value objects. All types overload the stringify and eq operators (so far)
Call::Context(3): Sanity-check calling context
Carton::Doc::Check(3): Check if your cpanfile and local environment are in sync
Catalyst::ActionRole::NeedsLogin(3): checks if a user is logged in and if not redirects him to login page
Catalyst::Plugin::Authorization::ACL::Engine(3): The backend that computes ACL checks for Catalyst::Plugin::Authorization::ACL
Catalyst::Restarter(3): Uses File::ChangeNotify to check for changed files and restart the server
CatalystX::LeakChecker(3): Debug memory leaks in Catalyst applications
Check::ISA(3): DWIM, correct checking of an object's class
Class::Error(3): Delayed checking of object failure
Class::NamedParms(3): A lightweight base class for checked get/set property accessors
Config::Model::CheckList(3): Handle check list element
Crypt::Checksum(3): [internal only]
Crypt::Checksum::Adler32(3): Compute Adler32 checksum
Crypt::Checksum::CRC32(3): Compute CRC32 checksum
Curses::UI::Checkbox(3): Create and manipulate checkbox widgets
DBIx::Class::StartupCheck(3): Run environment checks on startup
DNSCheck(3): DNS Check Tools
DNSCheck::Config(3): Read config files and make their contents available to other modules
DNSCheck::Logger(3): Logger Subsystem
DNSCheck::Lookup::ASN(3): AS Number Lookup
DNSCheck::Lookup::DNS(3): DNS Lookup
DNSCheck::Lookup::Resolver(3): a recursive DNS resolver for DNSCheck
DNSCheck::Overview(3), The(3): DNSCheck System
DNSCheck::Test::Address(3): Test for valid IP addresses
DNSCheck::Test::Common(3): parent module to all other DNSCheck::Test modules
DNSCheck::Test::Connectivity(3): Test zone connectivity
DNSCheck::Test::Consistency(3): Test zone consistency
DNSCheck::Test::DNSSEC(3): Test DNSSEC
DNSCheck::Test::Delegation(3): Test zone delegation
DNSCheck::Test::Host(3): Test host names and addresses
DNSCheck::Test::Mail(3): Test email addresses
DNSCheck::Test::Nameserver(3): Test a nameserver
DNSCheck::Test::SMTP(3): Test SMTP delivery
DNSCheck::Test::SOA(3): Test SOA record
DNSCheck::Test::Zone(3): Test a zone
Dancer2::Plugin::Interchange6::Routes::Checkout(3): Checkout routes for Interchange6 Shop Machine
Data::Rx::Failure(3): structured failure report from an Rx checker
Data::Rx::FailureSet(3): multiple structured failure reports from an Rx checker
Data::Rx::Manual::CustomTypes(3): overview of making new checkers
DateTime::Cron::Simple(3): Parse a cron entry and check against current time
DateTime::Format::ISO8601::Types(3): Types used for parameter checking in DateTime
DateTime::Format::Strptime::Types(3): Types used for parameter checking in DateTime::Format::Strptime
DateTime::Types(3): Types used for parameter checking in DateTime
Devel::AssertOS::Extending(3): how to write Devel::AssertOS::* modules that check what platform they're running on
Devel::AssertOS::OSFeatures::POSIXShellRedirection(3): check whether the OS we're running on can be expected to support POSIX shell redirection
Devel::CallChecker(3): custom op checking attached to subroutines
Devel::CheckBin(3): check that a command is available
Devel::CheckCompiler(3): Check the compiler's availability
Devel::CheckLib(3): check that a library is available
Devel::CheckOS(3): check what OS we're running on
Devel::CheckOS::Families(3): what OS "families" are supported "out of the box" by Devel::CheckOS and Devel::AssertOS?
Devel::LeakGuard::Object(3): Scoped checks for object leaks
Devel::LeakGuard::Object::State(3): Scoped object leak checking
Digest::Adler32(3): The Adler-32 checksum
Digest::Crc32(3), Digest::CRC32(3): Cyclic Redundency Check digests implementation
Dist::CheckConflicts(3): declare version conflicts for your dist
DtEditorCheckForUnsavedChanges(3): report whether text has been edited
DtEditorInvokeSpellDialog(3): display the DtEditor widget dialog for checking text for spelling errors "DtEditorInvokeSpellDialog" "DtEditor functions" "DtEditorInvokeSpellDialog"
Email::Valid(3): Check validity of Internet email addresses
ExtUtils::CChecker(3), "ExtUtils::CChecker"(3): configure-time utilities for using C headers, libraries, or OS features
ExtUtils::Manifest(3): Utilities to write and check a MANIFEST file
FFI::CheckLib(3): Check that a library is available for FFI
Facebook::Graph::Publish::Checkin(3): Publish a location checkin
File::Modified(3): checks intelligently if files have changed
Finance::TW::EmergingQuote(3): Check stock quotes from Taiwan Emerging Stock
Finance::TW::TSEQuote(3): Check stock quotes from Taiwan Security Exchange
Genezzo::Plan::QueryRewrite(3): Perform checks on relational algebra representation
Genezzo::Plan::TypeCheck(3): Perform checks on relational algebra representation
Getargs::Long(3): Named subroutine arguments, with optional type checking
Goo::Thing::pm::TypeChecker(3): What type of pm file is this? Perl6? Perl5?
Google::Checkout::General::ParameterizedUrls(3): (DEPRECATED)
Graph::Easy::Attributes(3): Define and check attributes for Graph::Easy
GraphQL::MaybeTypeCheck(3): Conditional type-checking at runtime
Gtk2::CheckButton(3): wrapper for GtkCheckButton
Gtk2::CheckMenuItem(3): wrapper for GtkCheckMenuItem
Gtk2::Ex::FormFactory::CheckButton(3): A CheckButton in a FormFactory framework
Gtk2::Ex::FormFactory::CheckButtonGroup(3): A group of checkbuttons
Gtk2::Ex::FormFactory::Rules(3): Rule checking in a FormFactory framework
HTML::FormFu::Constraint::AutoSet(3): Set Constraint for Selects / Radiogroups / Checkboxgroups
HTML::FormFu::Element::Checkbox(3): Checkbox form field
HTML::FormFu::Element::Checkboxgroup(3): Group of checkbox form fields
HTML::FormHandler::Field::Checkbox(3): a checkbox field type
HTML::FormHandler::Widget::Field::Checkbox(3): HTML attributes field role
HTML::FormHandler::Widget::Field::CheckboxGroup(3): checkbox group field role
HTML::FormHandler::Widget::Field::HorizCheckboxGroup(3): checkbox group field role
HTML::Lint(3): check for HTML errors in a string or file
HTML::QuickCheck(3), HTMLQuickCheck.pm(3): -- a simple and fast HTML syntax checking package for perl 4 and perl 5
HTML::SuperForm::Field::Checkbox(3): Checkbox field used by HTML::SuperForm
HTML::SuperForm::Field::CheckboxGroup(3): CheckboxGroup field used by HTML::SuperForm
HTTP::SimpleLinkChecker(3): Check the HTTP response code for a link
HTTP::WebTest::Plugin::ContentSizeTest(3): Response body size checks
HTTP::WebTest::Plugin::StatusTest(3): Checks the HTTP response status
IO::MultiPipe(3): Allows for error checking on a command involving multiple pipes
JMX::Jmx4Perl::Agent::Jolokia::Verifier::ChecksumVerifier(3): Verifies a checksum for a downloaded artifact
JMX::Jmx4Perl::Agent::Jolokia::Verifier::MD5Verifier(3): Verifies a MD5 checksum
JMX::Jmx4Perl::Agent::Jolokia::Verifier::SHA1Verifier(3): Verifies a SHA1 checksum
JMX::Jmx4Perl::Nagios::CheckJmx4Perl(3): Module for encapsulating the functionality of check_jmx4perl
JMX::Jmx4Perl::Nagios::SingleCheck(3): A single nagios check This is an package used internally by JMX::Jmx4Perl::Nagios::CheckJmx4Perl. It encapsulates the configuration for single checks, which can be combined to a bulk JMX-Request so only a single server turnaround is used to obtain multiple checks results at once
JSON::Schema::Error(3): an error that occurred when checking an instance against a schema
JSON::Schema::Result(3): the result of checking an instance against a schema
Jifty::Manual::Style(3): Jifty coding style guide Default style Subsection "Default style" When in doubt, default to whatever Damian Conway's Perl Best Practices says. Private documentation Subsection "Private documentation" When documenting a private method, or providing documentation which is not useful to the user of the module (and is presumably useful to the developer), wrap it in =begin/end private. This way it does not show up in perldoc where a user would see it and yet is still available and well formatted (that is, not just a lump comment) when looking at the code. =begin private =head2 import_extra Called by L<Test::More>s C<import> code when L<Jifty::Test> is first C<use>d, it calls L</setup>, and asks Test::More to export its symbols to the namespace that C<use>d this one. =end private sub import_extra { ... } Test temp files Subsection "Test temp files" Files created by tests should be declared as such using Jifty::Test->test_file() so they are cleaned up on a successful test run. Use Shell::Command Subsection "Use Shell::Command" Shell::Command has a number of functions which work like common shell file commands such as touch, cp and mv. They are battle tested and cross-platform. Use them instead of coding your own. For example, instead of this: open my $file, ">foo"; close $file; Do this: use Shell::Command; touch $file; Case insensitive matching Subsection "Case insensitive matching" To check if a string equals another string case insensitively, do this lc $foo eq lc $bar; lc $foo eq bar; not this: $foo =~ /^eQ$bareE/i; $foo =~ /^bar$/i;
Jifty::Web::Form::Field::Checkbox(3): Add checkboxes to your forms
Jifty::Web::Form::Field::Checkboxes(3): Add a list of checkboxes for multiple-choice selection
List::Objects::WithUtils::Array::Typed(3): Type-checking array objects
List::Objects::WithUtils::Hash::Typed(3): Type-checking hash objects
List::Objects::WithUtils::Role::Array::Typed(3): Type-checking array behavior
List::Objects::WithUtils::Role::Hash::Typed(3): Type-checking hash behavior
Log::Dispatch::Types(3): Types used for parameter checking in Log::Dispatch
MARC::Lint(3): Perl extension for checking validity of MARC records
MPI_Finalized(3), MPI_Finalized (3): Checks whether MPI has been finalized
MPI_Initialized(3): Checks whether MPI has been initialized
Mail::Audit::MAPS(3): Mail::Audit plugin for RBL checking
Mail::CheckUser(3): check email addresses for validity
Mail::OpenRelay::Simple(3): check if a mail server runs as an open relay
Mail::SpamAssassin::Plugin::AccessDB(3): check message against Access Database
Mail::SpamAssassin::Plugin::Check(3): primary message check functionality
Mail::SpamAssassin::Plugin::DCC(3): perform DCC check of messages
Mail::SpamAssassin::Plugin::DMARC(3): check DMARC policy
Mail::SpamAssassin::Plugin::DecodeShortURLs(3), DecodeShortURLs(3): Check for shortened URLs
Mail::SpamAssassin::Plugin::FreeMail(3), FreeMail(3): check message headers/body for freemail-domains
Mail::SpamAssassin::Plugin::Phishing(3): check uris against phishing feed
Mail::SpamAssassin::Plugin::Pyzor(3): perform Pyzor check of messages
Mail::SpamAssassin::Plugin::Razor2(3): perform Razor check of messages
Mail::SpamAssassin::Plugin::Reuse(3): For reusing old rule hits during a mass-check
Math::Polygon::Tree(3): fast check if point is inside polygon
MetaCPAN::Client::Types(3): type checking helper class
Module::CPANTS::Kwalitee::BrokenInstaller(3): Check for broken Module::Install
Module::CPANTS::Kwalitee::CpantsErrors(3): Check for CPANTS testing errors
Module::CPANTS::Kwalitee::Files(3): Check for various files
Module::CPANTS::Kwalitee::License(3): Checks if there is a license
Module::CPANTS::Kwalitee::Manifest(3): Check MANIFEST
Module::CPANTS::Kwalitee::MetaYML(3): Checks data available in META.yml
Module::CPANTS::Kwalitee::NeedsCompiler(3): Checks if the module needs a (probably C) compiler
Module::CPANTS::Kwalitee::Pod(3): Check Pod
Module::CPANTS::Kwalitee::Prereq(3): Checks listed prerequisites
Module::CPANTS::Kwalitee::Repackageable(3): Checks for various signs that make a module packageable
Module::CPANTS::Kwalitee::Uses(3): Checks which modules are used
Module::CPANTS::Kwalitee::Version(3): check versions
Module::CheckDeps(3): Very simple dependencies checker for Perl code
Module::CheckVersion(3): Check module (e.g. check latest version) with CPAN (or equivalent repo)
Module::CheckVersion::cpan(3): Handler for cpan
Module::Install::Repository(3): Automatically sets repository URL from svn/svk/Git checkout
Module::Installed::Tiny(3): Check if a module is installed, with as little code as possible
Module::Release::MANIFEST(3): Check Perl's MANIFEST to ensure you've updated it
Module::Release::Prereq(3): Check pre-requisites list in build file
MogileFS::Checksum(3): Checksums handling for MogileFS
Monitoring::Livestatus(3): Perl API for check_mk livestatus to access runtime data from Nagios and Icinga
MooX::TypeTiny(3): Optimized type checks for Moo + Type::Tiny
MooseX::Meta::Method::Authorized::CheckRoles(3): Check roles of the user
MooseX::Params::Validate::Exception::ValidationFailedForTypeConstraint(3): Exception thrown when a type constraint check fails
MooseX::Storage::Base::WithChecksum(3): A more secure serialization role
MooseX::Types::CheckedUtilExports(3): Wrap Moose::Util::TypeConstraints to be safer for MooseX::Types
MooseX::Types::Perl(3): Moose types that check against Perl syntax
Net::Abuse::Utils::Spamhaus(3): Perl extension for checking data against the spamhaus blacklists
Net::Connection::Match(3): Runs a stack of checks to match Net::Connection objects
Net::Connection::Match::CIDR(3): Runs a basic CIDR check against a Net::Connection object
Net::Connection::Match::Command(3): Check if the process command matches fix regexp for a Net::Connection object
Net::Connection::Match::PID(3): Check if the PID of a connection matches
Net::Connection::Match::PTR(3): Runs a PTR check against a Net::Connection object
Net::Connection::Match::PctCPU(3): Check if the pctcpu of a process matches for the process that has the connection
Net::Connection::Match::PctMem(3): Check if the pctmem of a process matches for the process that has the connection
Net::Connection::Match::Ports(3): Runs a basic port check against a Net::Connection object
Net::Connection::Match::Protos(3): Runs a protocol check against a Net::Connection object
Net::Connection::Match::RegexPTR(3): Runs a PTR check against a Net::Connection object using regular expressions
Net::Connection::Match::States(3): Runs a basic state check against a Net::Connection object
Net::Connection::Match::UID(3): Check if the UID of a connection matches
Net::Connection::Match::Username(3): Runs a username check against a Net::Connection object
Net::Connection::Match::WChan(3): Check if the process wait channel matches fix regexp for a Net::Connection object
Net::DNS::Check(3), Net::DNS::Check::Check(3): OOP Perl module based on Net::DNS for domain name checking
Net::DNS::Check::Host(3): Class for name server resolution of hostnames
Net::DNS::Check::HostsList(3): Class for maintaining a list of Net::DNS::Check::Host objects
Net::DNS::Check::NSQuery(3): Class to query authoritative nameservers for the domain name you want to check
Net::DNS::Check::Test(3): base class for all type of tests
Net::DNS::Check::Test::host_ip_private(3): Check if the IP addresses found during the hosts resolution do not belong to IP private classes
Net::DNS::Check::Test::host_ip_vs_ip_orig(3): Compare the IP addresses found during the hosts resolution with the IP addresses given with nserver argument (if exists) in method "new"
Net::DNS::Check::Test::host_not_cname(3): Check if the hosts found are CNAME or not
Net::DNS::Check::Test::host_syntax(3): Verify the correctness of the hosts syntax
Net::DNS::Check::Test::mx_compare(3): Compare the MX RR found
Net::DNS::Check::Test::mx_present(3): Check if mx RR is present or not
Net::DNS::Check::Test::ns_compare(3): Check if the NS RR are the same in all the authoritative nameservers
Net::DNS::Check::Test::ns_count(3): Check if the number of NS RR are within the range set in the configuration object
Net::DNS::Check::Test::ns_vs_delegated(3): Compare the NS RR found with the effectively delegated nameservers (NS RR in the parent zone of the domain name being checked)
Net::DNS::Check::Test::soa_expire_compare(3): Compare the expire time of all the authoritative nameservers
Net::DNS::Check::Test::soa_expire_range(3): Check if the expire time in the SOA RR is within the range set in the configuration object
Net::DNS::Check::Test::soa_master_compare(3): Compare the value of the master nameserver specified in the SOA RR of all the authoritative nameservers
Net::DNS::Check::Test::soa_master_in_ns(3): Check if the NS RR exists for the master nameserver specified in the SOA RR
Net::DNS::Check::Test::soa_refresh_compare(3): Compare the refresh time in SOA RR of all authoritative name servers
Net::DNS::Check::Test::soa_refresh_range(3): Check if the refresh time in the SOA RR is within the range set in the configuration object
Net::DNS::Check::Test::soa_retry_compare(3): Compare the retry time in the SOA RR of all the authoritative nameservers
Net::DNS::Check::Test::soa_retry_range(3): Check if the retry time in the SOA RR is within the range set in the configuration object
Net::DNS::Check::Test::soa_serial_compare(3): Compare the serial number in the SOA RR of all the authoritative nameservers
Net::DNS::Check::Test::soa_serial_syntax(3): Check if the syntax of the serial number in the SOA RR are in the AAAAMMGGVV format
Net::DNS::Check::Test::unknown(3): Unknown Test
Net::EPP::Frame::Command::Check(3): an instance of Net::EPP::Frame::Command for the EPP "<check>" command
Net::EPP::Frame::Command::Check::Contact(3): an instance of Net::EPP::Frame::Command::Check for contact objects
Net::EPP::Frame::Command::Check::Domain(3): an instance of Net::EPP::Frame::Command::Check for domain names
Net::EPP::Frame::Command::Check::Host(3): an instance of Net::EPP::Frame::Command::Check for host objects
Net::IPv6Addr(3): Check and manipulate IPv6 addresses
Net::NSCA::Client(3): Send passive checks to Nagios locally and remotely
Net::Ping(3): check a remote host for reachability
Net::SSLGlue::LDAP(3): proper certificate checking for ldaps in Net::LDAP
Net::SSLGlue::LWP(3): proper certificate checking for https in LWP
OpenXPKI::Password(3), Header "Name" OpenXPKI::Password(3): password hashing and checking
OpenXPKI::Server::API2::Plugin::Crypto::password_quality::CheckEntropyRole(3): Check password entropy
OpenXPKI::Server::API2::Plugin::Crypto::password_quality::CheckLegacyRole(3): Legacy password quality checks
OpenXPKI::Server::API2::Plugin::Crypto::password_quality::CheckStandardRole(3): Standard password quality checks
OpenXPKI::Server::Workflow::Activity::NICE::CheckForRevocation(3), Header(3): "Name" OpenXPKI::Server::Workflow::Activity::NICE::CheckForRevocation;
OpenXPKI::Server::Workflow::Condition::DateTime(3): Generic class to check a value against a timespec
Params::Check(3): A generic input parsing/checking mechanism
Params::Util(3): Simple, compact and correct param-checking functions
Params::Validate::Dependencies(3): check that the right combination of arguments is passed to a function
Params::ValidationCompiler::Compiler(3): Object that implements the check subroutine compilation
Paws::ECR::BatchCheckLayerAvailability(3): Arguments for method BatchCheckLayerAvailability on Paws::ECR
Paws::ECRPublic::BatchCheckLayerAvailability(3): Arguments for method BatchCheckLayerAvailability on Paws::ECRPublic
Paws::ELB::ConfigureHealthCheck(3): Arguments for method ConfigureHealthCheck on Paws::ELB
Paws::ElasticBeanstalk::CheckDNSAvailability(3): Arguments for method CheckDNSAvailability on Paws::ElasticBeanstalk
Paws::Glue::CheckSchemaVersionValidity(3): Arguments for method CheckSchemaVersionValidity on Paws::Glue
Paws::LicenseManager::CheckInLicense(3): Arguments for method CheckInLicense on Paws::LicenseManager
Paws::LicenseManager::CheckoutBorrowLicense(3): Arguments for method CheckoutBorrowLicense on Paws::LicenseManager
Paws::LicenseManager::CheckoutLicense(3): Arguments for method CheckoutLicense on Paws::LicenseManager
Paws::Route53::CreateHealthCheck(3): Arguments for method CreateHealthCheck on Paws::Route53
Paws::Route53::DeleteHealthCheck(3): Arguments for method DeleteHealthCheck on Paws::Route53
Paws::Route53::GetCheckerIpRanges(3): Arguments for method GetCheckerIpRanges on Paws::Route53
Paws::Route53::GetHealthCheck(3): Arguments for method GetHealthCheck on Paws::Route53
Paws::Route53::GetHealthCheckCount(3): Arguments for method GetHealthCheckCount on Paws::Route53
Paws::Route53::GetHealthCheckLastFailureReason(3): Arguments for method GetHealthCheckLastFailureReason on Paws::Route53
Paws::Route53::GetHealthCheckStatus(3): Arguments for method GetHealthCheckStatus on Paws::Route53
Paws::Route53::ListHealthChecks(3): Arguments for method ListHealthChecks on Paws::Route53
Paws::Route53::UpdateHealthCheck(3): Arguments for method UpdateHealthCheck on Paws::Route53
Paws::Route53Domains::CheckDomainAvailability(3): Arguments for method CheckDomainAvailability on Paws::Route53Domains
Paws::Route53Domains::CheckDomainTransferability(3): Arguments for method CheckDomainTransferability on Paws::Route53Domains
Paws::SNS::CheckIfPhoneNumberIsOptedOut(3): Arguments for method CheckIfPhoneNumberIsOptedOut on Paws::SNS
Paws::Shield::AssociateHealthCheck(3): Arguments for method AssociateHealthCheck on Paws::Shield
Paws::Shield::DisassociateHealthCheck(3): Arguments for method DisassociateHealthCheck on Paws::Shield
Paws::Support::DescribeTrustedAdvisorCheckRefreshStatuses(3): Arguments for method DescribeTrustedAdvisorCheckRefreshStatuses on Paws::Support
Paws::Support::DescribeTrustedAdvisorCheckResult(3): Arguments for method DescribeTrustedAdvisorCheckResult on Paws::Support
Paws::Support::DescribeTrustedAdvisorCheckSummaries(3): Arguments for method DescribeTrustedAdvisorCheckSummaries on Paws::Support
Paws::Support::DescribeTrustedAdvisorChecks(3): Arguments for method DescribeTrustedAdvisorChecks on Paws::Support
Paws::Support::RefreshTrustedAdvisorCheck(3): Arguments for method RefreshTrustedAdvisorCheck on Paws::Support
Paws::WAFV2::CheckCapacity(3): Arguments for method CheckCapacity on Paws::WAFV2
Perl::Critic::Policy::Compatibility::PodMinimumVersion(3): check Perl version declared against POD features used
Perl::Critic::Policy::Documentation::PodSpelling(3): Check your spelling
Perl::Critic::Policy::ErrorHandling::RequireCheckingReturnValueOfEval(3): You can't depend upon the value of "$@"/"$EVAL_ERROR" to tell whether an "eval" failed
Perl::Critic::Policy::InputOutput::RequireCheckedClose(3): Write "my $error = close $fh;" instead of "close $fh;"
Perl::Critic::Policy::InputOutput::RequireCheckedOpen(3): Write "my $error = open $fh, $mode, $filename;" instead of "open $fh, $mode, $filename;"
Perl::Critic::Policy::InputOutput::RequireCheckedSyscalls(3): Return value of flagged function ignored
Perl::Critic::Policy::Miscellanea::TextDomainPlaceholders(3): check placeholder names in Locale::TextDomain calls
Perl::Critic::Policy::Miscellanea::TextDomainUnused(3): check for Locale::TextDomain imported but unused
Pod::Checker(3): check pod documents for syntax errors
Pod::Coverage(3): Checks if the documentation of a module is comprehensive
Pod::Perldoc::ToChecker(3): let Perldoc check Pod for errors
Pod::Simple::Checker(3): -- check the Pod syntax of a document
Pod::Spell(3): a formatter for spellchecking Pod
Proc::ProcessTable::Match(3): Matches a Proc::ProcessTable::Process against a stack of checks
Proc::ProcessTable::Match::Cmndline(3): Check if the cmndline of a process matches via regexp
Proc::ProcessTable::Match::Command(3): Check if the fname or cmndline of a process matches via regexp
Proc::ProcessTable::Match::EGID(3): Check if the EGID of a process matches
Proc::ProcessTable::Match::EGIDset(3): Check if the the process has a EGID set
Proc::ProcessTable::Match::EUID(3): Check if the EUID of a process matches
Proc::ProcessTable::Match::EUIDset(3): Check if the the process has a EUID set
Proc::ProcessTable::Match::Fname(3): Check if the fname of a process matches via regexp
Proc::ProcessTable::Match::GID(3): Check if the GID of a process matches
Proc::ProcessTable::Match::JID(3): Check if the JID of a process matches
Proc::ProcessTable::Match::PID(3): Check if the PID of a process matches
Proc::ProcessTable::Match::PctCPU(3): Check if a process matches based on the CPU usaged percentage
Proc::ProcessTable::Match::PctMem(3): Check if the memory usage by percent of a process matches
Proc::ProcessTable::Match::Priority(3): Check if the Priority of a process matches
Proc::ProcessTable::Match::RSS(3): Check if the resident set size of a process matches
Proc::ProcessTable::Match::Size(3): Check if the Size of a process matches
Proc::ProcessTable::Match::Start(3): Check if the start time of a process matches
Proc::ProcessTable::Match::State(3): Check if the state of a process matches via regexp
Proc::ProcessTable::Match::Swapped(3): Check if the process is swapped out
Proc::ProcessTable::Match::Time(3): Check if the user + system time of a process matches
Proc::ProcessTable::Match::UID(3): Check if the UID or username of a process matches
Proc::ProcessTable::Match::WChan(3): Check if the wait channel of a process matches via regexp
Ref::Util(3): Utility functions for checking references
Rex::Commands::SimpleCheck(3): Simple tcp/alive checks
Rose::HTML::Form::Field::Checkbox(3): Object representation of a single checkbox field in an HTML form
Rose::HTML::Form::Field::CheckboxGroup(3): A group of checkboxes in an HTML form
SNMP::Info::Layer3::CheckPoint(3): SNMP Interface to CheckPoint Devices
SPOPS::Tie::StrictField(3): Enable field checking for SPOPS objects
SQL::Translator::Types(3): Type checking functions
SVK::Command::Checkout(3): Checkout the depotpath
SVK::Command::Diff(3): Display diff between revisions or checkout copies
SVK::Command::Resolved(3): Remove conflict mark from checkout items
SVK::Command::Revert(3): Revert changes made in checkout copies
SVK::Command::Status(3): Display the status of items in the checkout copy
SVK::Command::Update(3): Bring changes from repository to checkout copies
SVK::Editor::Checkout(3), SVK::Editor::File(3): An editor for modifying files on filesystems
SVK::Editor::XD(3): An editor for modifying svk checkout copies
SVK::Path::Checkout(3): SVK path class associating a checkout
SVK::XD(3): svk depot and checkout handling
SVN::Hooks::CheckCapability(3): Check the svn client capabilities
SVN::Hooks::CheckJira(3): Integrate Subversion with the JIRA ticketing system
SVN::Hooks::CheckLog(3): Check log messages in commits
SVN::Hooks::CheckMimeTypes(3): Require the svn:mime-type property
SVN::Hooks::CheckProperty(3): Check properties in added files
SVN::Hooks::CheckStructure(3): Check the structure of a repository
SVN::Hooks::Generic(3): Implement generic checks for all Subversion hooks
SVN::S4::Info(3): Enhanced update and checkout methods
SVN::S4::Update(3): Enhanced update and checkout methods
SVN::Web::Checkout(3): SVN::Web action to checkout a given file
Script::isAperlScript(3): This does a basic check if something is a perl script or not
Security::TLSCheck(3): Application for checking server's TLS capability
Security::TLSCheck::App(3): -- CLI part of TLS check application
Security::TLSCheck::App::DomainFilter(3): -- change wrong domain names into correct ones, if possible
Security::TLSCheck::App::Parallel(3): -- run everything in parallel
Security::TLSCheck::Checks(3): Base class for all checks
Security::TLSCheck::Checks::AgeDE(3): Checks, if a host has an age-de.xml file
Security::TLSCheck::Checks::CipherStrength(3): Check Strength of CipherSuites and SSL/TLS Version
Security::TLSCheck::Checks::CipherStrengthOnlyValidCerts(3): Check Strength of CipherSuites and SSL/TLS Version, but only for domains with valid certficates
Security::TLSCheck::Checks::DNS(3): Basic DNS Checks
Security::TLSCheck::Checks::Dummy(3): Simple dummy check as example
Security::TLSCheck::Checks::FinalScore(3): Creates a summary score out of the other tests
Security::TLSCheck::Checks::Heartbleed(3): Heartbleed checks
Security::TLSCheck::Checks::Helper::MX(3): Get all MX, cache if already checked,
Security::TLSCheck::Checks::Helper::Timing(3): Timing helpers for run_check
Security::TLSCheck::Checks::Mail(3): Checks mailservers for TLS capability
Security::TLSCheck::Checks::MailCipherStrength(3): Checks mailservers for supported CipherSuites
Security::TLSCheck::Checks::Web(3): (Basic) HTTP and HTTPS Checks
Security::TLSCheck::Result(3): -- Result storage, aggregation and output
Security::TLSCheck::Result::CSV(3): -- CSV output role
Specio::TypeChecks(3): Type checks used internally for Specio classes (it's not self-bootstrapping (yet?))
String::CRC32(3): Perl interface for cyclic redundancy check generation
String::Checker(3): An extensible string validation module (allowing commonly used checks on strings to be called more concisely and consistently)
String::LRC(3), LRC(3): Perl interface for longitudinal redundancy check generation
Taint::Runtime(3): Runtime enable taint checking
Test2::Compare::Custom(3): Custom field check for comparisons
Test2::Compare::Isa(3): Check if the value is an instance of the class
Test2::Compare::Meta(3): Check library for meta-checks
Test2::Compare::Set(3): Allows a field to be matched against a set of checks
Test2::Compare::Undef(3): Check that something is undefined
Test2::Compare::Wildcard(3): Placeholder check
Test2::Tools::Exception(3): Test2 based tools for checking exceptions
Test2::Tools::MemoryCycle(3): Check for memory leaks and circular memory references
Test::CheckDeps(3): Check for presence of dependencies
Test::CheckManifest(3): Check if your Manifest matches your distro
Test::CleanNamespaces(3): Check for uncleaned imports
Test::EOL(3): Check the correct line endings in your project
Test::Fixme(3): Check code for FIXMEs
Test::HasVersion(3): Check Perl modules have version numbers
Test::LectroTest::Compat(3): Use LectroTest property checks in a Test::Simple world
Test::LectroTest::TestRunner(3): Configurable TAP-compatible engine for running LectroTest property checks
Test::Memory::Cycle(3): Check for memory leaks and circular memory references
Test::NoTabs(3): Check the presence of tabs in your project
Test::PerlTidy(3): check that all your files are tidy
Test::Pod(3): check for POD errors in files
Test::Pod::Coverage(3): Check for pod coverage in your distribution
Test::Pod::Coverage::Permissive(3): Checks for pod coverage regression
Test::Portability::Files(3): Check file names portability
Test::Prereq(3): check if Makefile.PL has the right pre-requisites
Test::Requires(3): Checks to see if the module can be loaded
Test::Requires::Git(3): Check your test requirements against the available version of Git
Test::Spelling(3): Check for spelling errors in POD files
Test::Strict(3): Check syntax, presence of use strict; and test coverage
Test::TCP::CheckPort(3): check if a port is open from command line
Test::URI(3): Check Uniform Resource Identifiers
Test::Version(3): Check to see that version's in modules are sane
Text::NSP::Measures::2D::CHI(3): Perl module that provides error checks for the Pearson's chi squared, phi coefficient and the Tscore measures
Text::NSP::Measures::2D::MI(3): Perl module that provides error checks for Loglikelihood, Total Mutual Information, Pointwise Mutual Information and Poisson-Stirling Measure
Text::NSP::Measures::3D::MI(3): Perl module that provides error checks and framework to implement Loglikelihood, Total Mutual Information, Pointwise Mutual Information and Poisson Stirling Measure for trigrams
Text::NSP::Measures::4D::MI(3): Perl module that provides error checks and framework to implement Loglikelihood for 4-grams
Text::SpellChecker(3): OO interface for spell-checking a block of text
Tickit::Widget::CheckButton(3), "Tickit::Widget::CheckButton"(3): a widget allowing a toggle true/false option
Tk::CheckBox(3): Another radio button style widget (with a check mark)
Tk::Checkbutton(3): Create and manipulate Checkbutton widgets
Toader::Render::supportedBackends(3): This checks if the backend is supported or not
Toader::Render::supportedObjects(3): This checks if a object is supported or not for rendering
Toader::isaToaderDir(3): Checks if a directory has Toader support or not
Type::Tiny::Manual::UsingWithOther(3): using Type::Tiny with Class::InsideOut, Params::Check, and Object::Accessor
Unicode::CheckUTF8(3): checks if scalar is valid UTF-8
VM::EC2::ELB::HealthCheck(3), VM::EC2::ELB:HealthCheck(3): Load Balancer Health Check Parameters
VM::EC2::Instance::Status(3): Object describing an instance/system status check
VM::EC2::Instance::Status::Details(3): Object describing the details of an instance status check
VM::EC2::Volume::Status(3): Object describing an volume/system status check
VM::EC2::Volume::Status::Details(3): Object describing the details of an volume status check
Validator::Custom::CheckFunction(3): Checking functions
W3C::LogValidator(3): The W3C Log Validator - Quality-focused Web Server log processing engine Checks quality/validity of most popular content on a Web server
XML::Checker(3): A perl module for validating XML
XML::Checker::Parser(3): an XML::Parser that validates at parse time
XML::Compile::Schema::BuiltInFacets(3): handling of built-in facet checks
_check-module-version(1): Completer script for check-module-version
admsCheck(1): Test Program for admsXml
bareos-dbcheck(8): Bareos's Catalog Database Check/Clean program
bibclean(1): prettyprint and syntax check BibTeX and Scribe bibliography
bk-check(1), bk check(1): check repository for consistency
bk-checksum(1), bk checksum(1): check and/or fix per file checksums
bk-citool(1), bk citool(1): graphical check-in tool
bk-comments(1), bk comments(1): change checkin comments
bk-delta(1), bk delta(1): check in modified files
bk-edit(1), bk edit(1): check out a file for editing
bk-editor(1), bk editor(1): automatically check out files when using $EDITOR
bk-get(1), bk get(1): check out files
bk-isascii(1), bk isascii(1): check that a file is ascii
bk-repocheck(1), bk repocheck(1): check repository for consistency
bk-sane(1), bk sane(1): check for various requirements
bk-superset(1), bk superset(1): check to see if the parent is ahead of the current repository
bk-unedit(1), bk unedit(1): destroy any unchecked in changes to specified files
bk-upgrade(1), bk upgrade(1): upgrade to, or check for, new versions of BitKeeper
bk-xflags(1), bk xflags(1): check or fix BitKeeper flags
borg-check(1): Check repository consistency
buildah-manifest-exists(1): Check if the given manifest list exists in local storage
bup(1): Backup program using rolling checksums and git file formats
cargo-check(1): Check the current package
cargo-verify-project(1): Check correctness of crate manifest
certbot(1): certbot script documentation 0.0 3.5 C usage: certbot [SUBCOMMAND] [options] [-d DOMAIN] [-d DOMAIN] ... Certbot can obtain and install HTTPS/TLS/SSL certificates. By default, it will attempt to use a webserver both for obtaining and installing the certificate. The most common SUBCOMMANDS and flags are: obtain, install, and renew certificates: (default) run Obtain & install a certificate in your current webserver certonly Obtain or renew a certificate, but do not install it renew Renew all previously obtained certificates that are near expiry enhance Add security enhancements to your existing configuration -d DOMAINS Comma-separated list of domains to obtain a certificate for --apache Use the Apache plugin for authentication & installation --standalone Run a standalone webserver for authentication --nginx Use the Nginx plugin for authentication & installation --webroot Place files in a server(aqs webroot folder for authentication --manual Obtain certificates interactively, or using shell script hooks -n Run non-interactively --test-cert Obtain a test certificate from a staging server --dry-run Test "renew" or "certonly" without saving any certificates to disk manage certificates: certificates Display information about certificates you have from Certbot revoke Revoke a certificate (supply --cert-name or --cert-path) delete Delete a certificate (supply --cert-name) manage your account: register Create an ACME account unregister Deactivate an ACME account update_account Update an ACME account show_account Display account details --agree-tos Agree to the ACME server(aqs Subscriber Agreement -m EMAIL Email address for important account notifications options: -h, --help show this help message and exit -c CONFIG_FILE, --config CONFIG_FILE path to config file (default: /etc/letsencrypt/cli.ini and ~/.config/letsencrypt/cli.ini) -v, --verbose This flag can be used multiple times to incrementally increase the verbosity of output, e.g. -vvv. (default: 0) --max-log-backups MAX_LOG_BACKUPS Specifies the maximum number of backup logs that should be kept by Certbot(aqs built in log rotation. Setting this flag to 0 disables log rotation entirely, causing Certbot to always append to the same log file. (default: 1000) -n, --non-interactive, --noninteractive Run without ever asking for user input. This may require additional command line flags; the client will try to explain which ones are required if it finds one missing (default: False) --force-interactive Force Certbot to be interactive even if it detects it(aqs not being run in a terminal. This flag cannot be used with the renew subcommand. (default: False) -d DOMAIN, --domains DOMAIN, --domain DOMAIN Domain names to apply. For multiple domains you can use multiple -d flags or enter a comma separated list of domains as a parameter. The first domain provided will be the subject CN of the certificate, and all domains will be Subject Alternative Names on the certificate. The first domain will also be used in some software user interfaces and as the file paths for the certificate and related material unless otherwise specified or you already have a certificate with the same name. In the case of a name collision it will append a number like 0001 to the file path name. (default: Ask) --eab-kid EAB_KID Key Identifier for External Account Binding (default: None) --eab-hmac-key EAB_HMAC_KEY HMAC key for External Account Binding (default: None) --cert-name CERTNAME Certificate name to apply. This name is used by Certbot for housekeeping and in file paths; it doesn(aqt affect the content of the certificate itself. To see certificate names, run (aqcertbot certificates(aq. When creating a new certificate, specifies the new certificate(aqs name. (default: the first provided domain or the name of an existing certificate on your system for the same domains) --dry-run Perform a test run of the client, obtaining test (invalid) certificates but not saving them to disk. This can currently only be used with the (aqcertonly(aq and (aqrenew(aq subcommands. Note: Although --dry-run tries to avoid making any persistent changes on a system, it is not completely side-effect free: if used with webserver authenticator plugins like apache and nginx, it makes and then reverts temporary config changes in order to obtain test certificates, and reloads webservers to deploy and then roll back those changes. It also calls --pre-hook and --post-hook commands if they are defined because they may be necessary to accurately simulate renewal. --deploy- hook commands are not called. (default: False) --debug-challenges After setting up challenges, wait for user input before submitting to CA. When used in combination with the (ga-v(ga option, the challenge URLs or FQDNs and their expected return values are shown. (default: False) --preferred-chain PREFERRED_CHAIN Set the preferred certificate chain. If the CA offers multiple certificate chains, prefer the chain whose topmost certificate was issued from this Subject Common Name. If no match, the default offered chain will be used. (default: None) --preferred-challenges PREF_CHALLS A sorted, comma delimited list of the preferred challenge to use during authorization with the most preferred challenge listed first (Eg, "dns" or "http,dns"). Not all plugins support all challenges. See https://certbot.eff.org/docs/using.html#plugins for details. ACME Challenges are versioned, but if you pick "http" rather than "http-01", Certbot will select the latest version automatically. (default: []) --issuance-timeout ISSUANCE_TIMEOUT This option specifies how long (in seconds) Certbot will wait for the server to issue a certificate. (default: 90) --user-agent USER_AGENT Set a custom user agent string for the client. User agent strings allow the CA to collect high level statistics about success rates by OS, plugin and use case, and to know when to deprecate support for past Python versions and flags. If you wish to hide this information from the Let(aqs Encrypt server, set this to "". (default: CertbotACMEClient/2.0.0 (certbot; OS_NAME OS_VERSION) Authenticator/XXX Installer/YYY (SUBCOMMAND; flags: FLAGS) Py/major.minor.patchlevel). The flags encoded in the user agent are: --duplicate, --force-renew, --allow-subset-of-names, -n, and whether any hooks are set. --user-agent-comment USER_AGENT_COMMENT Add a comment to the default user agent string. May be used when repackaging Certbot or calling it from another tool to allow additional statistical data to be collected. Ignored if --user-agent is set. (Example: Foo-Wrapper/1.0) (default: None) automation: Flags for automating execution & other tweaks --keep-until-expiring, --keep, --reinstall If the requested certificate matches an existing certificate, always keep the existing one until it is due for renewal (for the (aqrun(aq subcommand this means reinstall the existing certificate). (default: Ask) --expand If an existing certificate is a strict subset of the requested names, always expand and replace it with the additional names. (default: Ask) --version show program(aqs version number and exit --force-renewal, --renew-by-default If a certificate already exists for the requested domains, renew it now, regardless of whether it is near expiry. (Often --keep-until-expiring is more appropriate). Also implies --expand. (default: False) --renew-with-new-domains If a certificate already exists for the requested certificate name but does not match the requested domains, renew it now, regardless of whether it is near expiry. (default: False) --reuse-key When renewing, use the same private key as the existing certificate. (default: False) --no-reuse-key When renewing, do not use the same private key as the existing certificate. Not reusing private keys is the default behavior of Certbot. This option may be used to unset --reuse-key on an existing certificate. (default: False) --new-key When renewing or replacing a certificate, generate a new private key, even if --reuse-key is set on the existing certificate. Combining --new-key and --reuse- key will result in the private key being replaced and then reused in future renewals. (default: False) --allow-subset-of-names When performing domain validation, do not consider it a failure if authorizations can not be obtained for a strict subset of the requested domains. This may be useful for allowing renewals for multiple domains to succeed even if some domains no longer point at this system. This option cannot be used with --csr. (default: False) --agree-tos Agree to the ACME Subscriber Agreement (default: Ask) --duplicate Allow making a certificate lineage that duplicates an existing one (both can be renewed in parallel) (default: False) -q, --quiet Silence all output except errors. Useful for automation via cron. Implies --non-interactive. (default: False) security: Security parameters & server settings --rsa-key-size N Size of the RSA key. (default: 2048) --key-type {rsa,ecdsa} Type of generated private key. Only *ONE* per invocation can be provided at this time. (default: ecdsa) --elliptic-curve N The SECG elliptic curve name to use. Please see RFC 8446 for supported values. (default: secp256r1) --must-staple Adds the OCSP Must-Staple extension to the certificate. Autoconfigures OCSP Stapling for supported setups (Apache version >= 2.3.3 ). (default: False) --redirect Automatically redirect all HTTP traffic to HTTPS for the newly authenticated vhost. (default: redirect enabled for install and run, disabled for enhance) --no-redirect Do not automatically redirect all HTTP traffic to HTTPS for the newly authenticated vhost. (default: redirect enabled for install and run, disabled for enhance) --hsts Add the Strict-Transport-Security header to every HTTP response. Forcing browser to always use SSL for the domain. Defends against SSL Stripping. (default: None) --uir Add the "Content-Security-Policy: upgrade-insecure- requests" header to every HTTP response. Forcing the browser to use https:// for every http:// resource. (default: None) --staple-ocsp Enables OCSP Stapling. A valid OCSP response is stapled to the certificate that the server offers during TLS. (default: None) --strict-permissions Require that all configuration files are owned by the current user; only needed if your config is somewhere unsafe like /tmp/ (default: False) --auto-hsts Gradually increasing max-age value for HTTP Strict Transport Security security header (default: False) testing: The following flags are meant for testing and integration purposes only. --test-cert, --staging Use the staging server to obtain or revoke test (invalid) certificates; equivalent to --server https://acme-staging-v02.api.letsencrypt.org/directory (default: False) --debug Show tracebacks in case of errors (default: False) --no-verify-ssl Disable verification of the ACME server(aqs certificate. The root certificates trusted by Certbot can be overriden by setting the REQUESTS_CA_BUNDLE environment variable. (default: False) --http-01-port HTTP01_PORT Port used in the http-01 challenge. This only affects the port Certbot listens on. A conforming ACME server will still attempt to connect on port 80. (default: 80) --http-01-address HTTP01_ADDRESS The address the server listens to during http-01 challenge. (default: ) --https-port HTTPS_PORT Port used to serve HTTPS. This affects which port Nginx will listen on after a LE certificate is installed. (default: 443) --break-my-certs Be willing to replace or renew valid certificates with invalid (testing/staging) certificates (default: False) paths: Flags for changing execution paths & servers --cert-path CERT_PATH Path to where certificate is saved (with certonly --csr), installed from, or revoked (default: None) --key-path KEY_PATH Path to private key for certificate installation or revocation (if account key is missing) (default: None) --fullchain-path FULLCHAIN_PATH Accompanying path to a full certificate chain (certificate plus chain). (default: None) --chain-path CHAIN_PATH Accompanying path to a certificate chain. (default: None) --config-dir CONFIG_DIR Configuration directory. (default: /etc/letsencrypt) --work-dir WORK_DIR Working directory. (default: /var/lib/letsencrypt) --logs-dir LOGS_DIR Logs directory. (default: /var/log/letsencrypt) --server SERVER ACME Directory Resource URI. (default: https://acme-v02.api.letsencrypt.org/directory) manage: Various subcommands and flags are available for managing your certificates: certificates List certificates managed by Certbot delete Clean up all files related to a certificate renew Renew all certificates (or one specified with --cert- name) revoke Revoke a certificate specified with --cert-path or --cert-name update_symlinks Recreate symlinks in your /etc/letsencrypt/live/ directory run: Options for obtaining & installing certificates certonly: Options for modifying how a certificate is obtained --csr CSR Path to a Certificate Signing Request (CSR) in DER or PEM format. Currently --csr only works with the (aqcertonly(aq subcommand. (default: None) renew: The (aqrenew(aq subcommand will attempt to renew any certificates previously obtained if they are close to expiry, and print a summary of the results. By default, (aqrenew(aq will reuse the plugins and options used to obtain or most recently renew each certificate. You can test whether future renewals will succeed with (ga--dry-run(ga. Individual certificates can be renewed with the (ga--cert-name(ga option. Hooks are available to run commands before and after renewal; see https://certbot.eff.org/docs/using.html#renewal for more information on these. --pre-hook PRE_HOOK Command to be run in a shell before obtaining any certificates. Intended primarily for renewal, where it can be used to temporarily shut down a webserver that might conflict with the standalone plugin. This will only be called if a certificate is actually to be obtained/renewed. When renewing several certificates that have identical pre-hooks, only the first will be executed. (default: None) --post-hook POST_HOOK Command to be run in a shell after attempting to obtain/renew certificates. Can be used to deploy renewed certificates, or to restart any servers that were stopped by --pre-hook. This is only run if an attempt was made to obtain/renew a certificate. If multiple renewed certificates have identical post- hooks, only one will be run. (default: None) --deploy-hook DEPLOY_HOOK Command to be run in a shell once for each successfully issued certificate. For this command, the shell variable $RENEWED_LINEAGE will point to the config live subdirectory (for example, "/etc/letsencrypt/live/example.com") containing the new certificates and keys; the shell variable $RENEWED_DOMAINS will contain a space-delimited list of renewed certificate domains (for example, "example.com www.example.com") (default: None) --disable-hook-validation Ordinarily the commands specified for --pre- hook/--post-hook/--deploy-hook will be checked for validity, to see if the programs being run are in the $PATH, so that mistakes can be caught early, even when the hooks aren(aqt being run just yet. The validation is rather simplistic and fails if you use more advanced shell constructs, so you can use this switch to disable it. (default: False) --no-directory-hooks Disable running executables found in Certbot(aqs hook directories during renewal. (default: False) --disable-renew-updates Disable automatic updates to your server configuration that would otherwise be done by the selected installer plugin, and triggered when the user executes "certbot renew", regardless of if the certificate is renewed. This setting does not apply to important TLS configuration updates. (default: False) --no-autorenew Disable auto renewal of certificates. (default: False) certificates: List certificates managed by Certbot delete: Options for deleting a certificate revoke: Options for revocation of certificates --reason {unspecified,keycompromise,affiliationchanged,superseded,cessationofoperation} Specify reason for revoking certificate. (default: unspecified) --delete-after-revoke Delete certificates after revoking them, along with all previous and later versions of those certificates. (default: None) --no-delete-after-revoke Do not delete certificates after revoking them. This option should be used with caution because the (aqrenew(aq subcommand will attempt to renew undeleted revoked certificates. (default: None) register: Options for account registration --register-unsafely-without-email Specifying this flag enables registering an account with no email address. This is strongly discouraged, because you will be unable to receive notice about impending expiration or revocation of your certificates or problems with your Certbot installation that will lead to failure to renew. (default: False) -m EMAIL, --email EMAIL Email used for registration and recovery contact. Use comma to register multiple emails, ex: u1@example.com,u2@example.com. (default: Ask). --eff-email Share your e-mail address with EFF (default: None) --no-eff-email Don(aqt share your e-mail address with EFF (default: None) update_account: Options for account modification unregister: Options for account deactivation. --account ACCOUNT_ID Account ID to use (default: None) install: Options for modifying how a certificate is deployed rollback: Options for rolling back server configuration changes --checkpoints N Revert configuration N number of checkpoints. (default: 1) plugins: Options for the "plugins" subcommand --init Initialize plugins. (default: False) --prepare Initialize and prepare plugins. (default: False) --authenticators Limit to authenticator plugins only. (default: None) --installers Limit to installer plugins only. (default: None) update_symlinks: Recreates certificate and key symlinks in /etc/letsencrypt/live, if you changed them by hand or edited a renewal configuration file enhance: Helps to harden the TLS configuration by adding security enhancements to already existing configuration. show_account: Options useful for the "show_account" subcommand: plugins: Plugin Selection: Certbot client supports an extensible plugins architecture. See (aqcertbot plugins(aq for a list of all installed plugins and their names. You can force a particular plugin by setting options provided below. Running --help <plugin_name> will list flags specific to that plugin. --configurator CONFIGURATOR Name of the plugin that is both an authenticator and an installer. Should not be used together with --authenticator or --installer. (default: Ask) -a AUTHENTICATOR, --authenticator AUTHENTICATOR Authenticator plugin name. (default: None) -i INSTALLER, --installer INSTALLER Installer plugin name (also used to find domains). (default: None) --apache Obtain and install certificates using Apache (default: False) --nginx Obtain and install certificates using Nginx (default: False) --standalone Obtain certificates using a "standalone" webserver. (default: False) --manual Provide laborious manual instructions for obtaining a certificate (default: False) --webroot Obtain certificates by placing files in a webroot directory. (default: False) --dns-cloudflare Obtain certificates using a DNS TXT record (if you are using Cloudflare for DNS). (default: False) --dns-digitalocean Obtain certificates using a DNS TXT record (if you are using DigitalOcean for DNS). (default: False) --dns-dnsimple Obtain certificates using a DNS TXT record (if you are using DNSimple for DNS). (default: False) --dns-dnsmadeeasy Obtain certificates using a DNS TXT record (if you are using DNS Made Easy for DNS). (default: False) --dns-gehirn Obtain certificates using a DNS TXT record (if you are using Gehirn Infrastructure Service for DNS). (default: False) --dns-google Obtain certificates using a DNS TXT record (if you are using Google Cloud DNS). (default: False) --dns-linode Obtain certificates using a DNS TXT record (if you are using Linode for DNS). (default: False) --dns-luadns Obtain certificates using a DNS TXT record (if you are using LuaDNS for DNS). (default: False) --dns-nsone Obtain certificates using a DNS TXT record (if you are using NS1 for DNS). (default: False) --dns-ovh Obtain certificates using a DNS TXT record (if you are using OVH for DNS). (default: False) --dns-rfc2136 Obtain certificates using a DNS TXT record (if you are using BIND for DNS). (default: False) --dns-route53 Obtain certificates using a DNS TXT record (if you are using Route53 for DNS). (default: False) --dns-sakuracloud Obtain certificates using a DNS TXT record (if you are using Sakura Cloud for DNS). (default: False) apache: Apache Web Server plugin (Please note that the default values of the Apache plugin options change depending on the operating system Certbot is run on.) --apache-enmod APACHE_ENMOD Path to the Apache (aqa2enmod(aq binary (default: None) --apache-dismod APACHE_DISMOD Path to the Apache (aqa2dismod(aq binary (default: None) --apache-le-vhost-ext APACHE_LE_VHOST_EXT SSL vhost configuration extension (default: -le- ssl.conf) --apache-server-root APACHE_SERVER_ROOT Apache server root directory (default: /etc/apache2) --apache-vhost-root APACHE_VHOST_ROOT Apache server VirtualHost configuration root (default: None) --apache-logs-root APACHE_LOGS_ROOT Apache server logs directory (default: /var/log/apache2) --apache-challenge-location APACHE_CHALLENGE_LOCATION Directory path for challenge configuration (default: /etc/apache2) --apache-handle-modules APACHE_HANDLE_MODULES Let installer handle enabling required modules for you (Only Ubuntu/Debian currently) (default: False) --apache-handle-sites APACHE_HANDLE_SITES Let installer handle enabling sites for you (Only Ubuntu/Debian currently) (default: False) --apache-ctl APACHE_CTL Full path to Apache control script (default: apache2ctl) --apache-bin APACHE_BIN Full path to apache2/httpd binary (default: None) dns-cloudflare: Obtain certificates using a DNS TXT record (if you are using Cloudflare for DNS). --dns-cloudflare-propagation-seconds DNS_CLOUDFLARE_PROPAGATION_SECONDS The number of seconds to wait for DNS to propagate before asking the ACME server to verify the DNS record. (default: 10) --dns-cloudflare-credentials DNS_CLOUDFLARE_CREDENTIALS Cloudflare credentials INI file. (default: None) dns-digitalocean: Obtain certificates using a DNS TXT record (if you are using DigitalOcean for DNS). --dns-digitalocean-propagation-seconds DNS_DIGITALOCEAN_PROPAGATION_SECONDS The number of seconds to wait for DNS to propagate before asking the ACME server to verify the DNS record. (default: 10) --dns-digitalocean-credentials DNS_DIGITALOCEAN_CREDENTIALS DigitalOcean credentials INI file. (default: None) dns-dnsimple: Obtain certificates using a DNS TXT record (if you are using DNSimple for DNS). --dns-dnsimple-propagation-seconds DNS_DNSIMPLE_PROPAGATION_SECONDS The number of seconds to wait for DNS to propagate before asking the ACME server to verify the DNS record. (default: 30) --dns-dnsimple-credentials DNS_DNSIMPLE_CREDENTIALS DNSimple credentials INI file. (default: None) dns-dnsmadeeasy: Obtain certificates using a DNS TXT record (if you are using DNS Made Easy for DNS). --dns-dnsmadeeasy-propagation-seconds DNS_DNSMADEEASY_PROPAGATION_SECONDS The number of seconds to wait for DNS to propagate before asking the ACME server to verify the DNS record. (default: 60) --dns-dnsmadeeasy-credentials DNS_DNSMADEEASY_CREDENTIALS DNS Made Easy credentials INI file. (default: None) dns-gehirn: Obtain certificates using a DNS TXT record (if you are using Gehirn Infrastructure Service for DNS). --dns-gehirn-propagation-seconds DNS_GEHIRN_PROPAGATION_SECONDS The number of seconds to wait for DNS to propagate before asking the ACME server to verify the DNS record. (default: 30) --dns-gehirn-credentials DNS_GEHIRN_CREDENTIALS Gehirn Infrastructure Service credentials file. (default: None) dns-google: Obtain certificates using a DNS TXT record (if you are using Google Cloud DNS for DNS). --dns-google-propagation-seconds DNS_GOOGLE_PROPAGATION_SECONDS The number of seconds to wait for DNS to propagate before asking the ACME server to verify the DNS record. (default: 60) --dns-google-credentials DNS_GOOGLE_CREDENTIALS Path to Google Cloud DNS service account JSON file. (See https://developers.google.com/identity/protocols/ OAuth2ServiceAccount#creatinganaccount forinformation about creating a service account and https://cloud.google.com/dns/access- control#permissions_and_roles for information about therequired permissions.) (default: None) dns-linode: Obtain certificates using a DNS TXT record (if you are using Linode for DNS). --dns-linode-propagation-seconds DNS_LINODE_PROPAGATION_SECONDS The number of seconds to wait for DNS to propagate before asking the ACME server to verify the DNS record. (default: 120) --dns-linode-credentials DNS_LINODE_CREDENTIALS Linode credentials INI file. (default: None) dns-luadns: Obtain certificates using a DNS TXT record (if you are using LuaDNS for DNS). --dns-luadns-propagation-seconds DNS_LUADNS_PROPAGATION_SECONDS The number of seconds to wait for DNS to propagate before asking the ACME server to verify the DNS record. (default: 30) --dns-luadns-credentials DNS_LUADNS_CREDENTIALS LuaDNS credentials INI file. (default: None) dns-nsone: Obtain certificates using a DNS TXT record (if you are using NS1 for DNS). --dns-nsone-propagation-seconds DNS_NSONE_PROPAGATION_SECONDS The number of seconds to wait for DNS to propagate before asking the ACME server to verify the DNS record. (default: 30) --dns-nsone-credentials DNS_NSONE_CREDENTIALS NS1 credentials file. (default: None) dns-ovh: Obtain certificates using a DNS TXT record (if you are using OVH for DNS). --dns-ovh-propagation-seconds DNS_OVH_PROPAGATION_SECONDS The number of seconds to wait for DNS to propagate before asking the ACME server to verify the DNS record. (default: 120) --dns-ovh-credentials DNS_OVH_CREDENTIALS OVH credentials INI file. (default: None) dns-rfc2136: Obtain certificates using a DNS TXT record (if you are using BIND for DNS). --dns-rfc2136-propagation-seconds DNS_RFC2136_PROPAGATION_SECONDS The number of seconds to wait for DNS to propagate before asking the ACME server to verify the DNS record. (default: 60) --dns-rfc2136-credentials DNS_RFC2136_CREDENTIALS RFC 2136 credentials INI file. (default: None) dns-route53: Obtain certificates using a DNS TXT record (if you are using AWS Route53 for DNS). --dns-route53-propagation-seconds DNS_ROUTE53_PROPAGATION_SECONDS The number of seconds to wait for DNS to propagate before asking the ACME server to verify the DNS record. (default: 10) dns-sakuracloud: Obtain certificates using a DNS TXT record (if you are using Sakura Cloud for DNS). --dns-sakuracloud-propagation-seconds DNS_SAKURACLOUD_PROPAGATION_SECONDS The number of seconds to wait for DNS to propagate before asking the ACME server to verify the DNS record. (default: 90) --dns-sakuracloud-credentials DNS_SAKURACLOUD_CREDENTIALS Sakura Cloud credentials file. (default: None) manual: Authenticate through manual configuration or custom shell scripts. When using shell scripts, an authenticator script must be provided. The environment variables available to this script depend on the type of challenge. $CERTBOT_DOMAIN will always contain the domain being authenticated. For HTTP-01 and DNS-01, $CERTBOT_VALIDATION is the validation string, and $CERTBOT_TOKEN is the filename of the resource requested when performing an HTTP-01 challenge. An additional cleanup script can also be provided and can use the additional variable $CERTBOT_AUTH_OUTPUT which contains the stdout output from the auth script. For both authenticator and cleanup script, on HTTP-01 and DNS-01 challenges, $CERTBOT_REMAINING_CHALLENGES will be equal to the number of challenges that remain after the current one, and $CERTBOT_ALL_DOMAINS contains a comma-separated list of all domains that are challenged for the current certificate. --manual-auth-hook MANUAL_AUTH_HOOK Path or command to execute for the authentication script (default: None) --manual-cleanup-hook MANUAL_CLEANUP_HOOK Path or command to execute for the cleanup script (default: None) nginx: Nginx Web Server plugin --nginx-server-root NGINX_SERVER_ROOT Nginx server root directory. (default: /etc/nginx or /usr/local/etc/nginx) --nginx-ctl NGINX_CTL Path to the (aqnginx(aq binary, used for (aqconfigtest(aq and retrieving nginx version number. (default: nginx) --nginx-sleep-seconds NGINX_SLEEP_SECONDS Number of seconds to wait for nginx configuration changes to apply when reloading. (default: 1) null: Null Installer standalone: Spin up a temporary webserver webroot: Place files in webroot directory --webroot-path WEBROOT_PATH, -w WEBROOT_PATH public_html / webroot path. This can be specified multiple times to handle different domains; each domain will have the webroot path that preceded it. For instance: (ga-w /var/www/example -d example.com -d www.example.com -w /var/www/thing -d thing.net -d m.thing.net(ga (default: Ask) --webroot-map WEBROOT_MAP JSON dictionary mapping domains to webroot paths; this implies -d for each entry. You may need to escape this from your shell. E.g.: --webroot-map (aq{"eg1.is,m.eg1.is":"/www/eg1/", "eg2.is":"/www/eg2"}(aq This option is merged with, but takes precedence over, -w / -d entries. At present, if you put webroot-map in a config file, it needs to be on a single line, like: webroot-map = {"example.com":"/var/www"}. (default: {}) P
check(nged): Check is a geometry analysis tool
check-firefox-certificate-authorities(1): check the CA certificates in firefox for expired certificates
check-module-version(1): Check module (e.g. check latest version) with CPAN (or equivalent repo)
check_jmx4perl(1): Nagios plugin using jmx4perl for accessing JMX data remotely
check_perldiag(1): check a localized version of perldiag for consistency
check_postgres(1p), check_postgres.pl(1p): a Postgres monitoring script for Nagios, MRTG, Cacti, and others This documents describes check_postgres.pl version 2.25.0
checkbot(1), Checkbot(1): WWW Link Verifier
checkdeps(1): Check for code dependencies
checkdigits.pl(1), checkdigits(1): check or generate check digits
checkers(6): nbcheckers
checklink(1): check the validity of links in an HTML or XHTML document
checkrestart(1): check for processes that may need restarting

chklinks(1): A non-threaded Perl link checker
cppcheck(1): Tool for static C/C++ code analysis
cstyle(1): check for some common stylistic errors in C source files
darktable-cltest(1): check if there is a usable OpenCL environment for darktable to use
dcmpschk(1): Checking tool for presentation states
debug(nged): Allows the user to set or check the flags used by BRL-CAD libraries to enable low level debugging outputs
debugbu(nged): Allows the user to set or check the debug flags used by libbu
debuglib(nged): Allows the user to set or check the debug flags used by librt
dnscheck(1): DNSCheck Tool
dnscheck-12hourmailer(1): email registrars about problems in their domains
dnscheck-dispatcher(1): daemon program to run tests from a database queue
dnscheck-hostsyntax(1): check if a name is syntactically correct for DNS
dnscheck-preflight(1): quickly check if a name seems to be a delegated domain or not
dnscheck-zonediff(1): Tool to periodically detect changes in a zone
dup(nged): Checks the specified file (which is expected to contain a BRL-CAD model) for names that are the same as those in the current model
extcheck(1): Detects version conflicts between a target Java Archive (JAR) file and currently installed extension JAR files
extcheck(1): check hierarchical ext|(5) files for global node connectivity and summarize number of fets, nodes, etc
fcall(3), Fcall(3), convS2M(3), convD2M(3), convM2S(3), convM2D(3), fcallfmt(3), dirfmt(3), dirmodefmt(3), read9pmsg(3), statcheck(3), sizeS2M(3), sizeD2M(3): interface to Plan 9 File protocol
fish_is_root_user(1): check if the current user is root
fontlint(1): check a font
glint(1): a BRL-CAD geometry checker
gmx-check(1): Check and compare files
gost12sum(1): generates or checks GOST R34.11-2012 message digests
gostsum(1): generates or checks GOST R34.11-94 message digests

http_status(1): check the HTTP status of a URL
ibanchk(1): Check an International Bank Account Number (IBAN)
innochecksum(1): offline InnoDB file checksum utility
installcheck(1): find out which packages cannot be installed
interface(3): simple compile time interface checking for OO Perl
ipsec_checknss(8): Initialise the IPsec NSS database
isutf8(1): check whether files are valid UTF-8
ktoblzcheck(1): Check Account and BLZ (bank routing code)
make_md5(8): Generate MD5 checksums for given set of users
make_sha1(8): Generate SHA1 checksums for given set of users
measureperl-checkstyle(1): count lines, packages, subs and complexity of Perl files
mp3lint(1): checks directories of audio files for problems
mysql_upgrade(1): check and upgrade MySQL tables
mysqlaccess(1): client for checking access privileges
mysqlcheck(1): a table maintenance program
needstack(3): check for execution stack overflow
npm-doctor(1): Check your npm environment
npm-outdated(1): Check for outdated packages
ompi_crcp(7), OMPI_CRCP(7): Open MPI MCA Checkpoint/Restart Coordination Protocol (CRCP) Framework: Overview of Open MPI's CRCP framework, and selected modules. Open MPI 4.1.4
opal_crs(7), OPAL_CRS(7): Open PAL MCA Checkpoint/Restart Service (CRS): Overview of Open PAL's CRS framework, and selected modules. Open MPI 4.1.4
path(1): manipulate and check paths
patmatch(3), patmatch()(3): checks string for matches
pidstat(1): Check the existence of a process on a remote machine
podchecker(1): check the syntax of POD format documentation files
podlint(1): check POD for correctness using Pod::POM
podman-container-checkpoint(1): Checkpoints one or more running containers
podman-container-exists(1): Check if a container exists in local storage
podman-container-restore(1): Restores one or more containers from a checkpoint
podman-healthcheck(1): Manage healthchecks for containers
podman-healthcheck-run(1): Run a container healthcheck
podman-image-exists(1): Check if an image exists in local storage
podman-manifest-exists(1): Check if the given manifest list exists in local storage
podman-network-exists(1): Check if the given network exists
podman-pod-exists(1): Check if a pod exists in local storage
podman-volume-exists(1): Check if the given volume exists
podspell(1): pod spell checking command line interface
policyd-spf(1): pure-Python Postfix policy daemon for SPF checking
pt-duplicate-key-checker(1): Find duplicate indexes and foreign keys on MySQL tables
pt-table-checksum(1): Verify MySQL replication integrity
razor-agents(5), Razor-Agents(5): Collection of files for checking, reporting, and revoking spam
razor-check(1), "razor-check"(1): Razor Filtering Agent
rgbfix(1): Game Boy header utility and checksum fixer
rtcheck(1): Make UNIX-Plot of overlaps in an mged model, using raytracing
rtcheck(nged): Executes the BRL-CAD rtcheck program with the default options of "-s50 M."
rumur(1): Yet another explicit state model checker
sa-check_spamd(1): spamd monitoring script for use with Nagios, etc
sccs-check(1), sccs-info(1), sccs-tell(1): print information about file being edited
sccs-istext(1): check whether files are text files or need to be encoded
scgcheck(1): check and validate the ABI of libscg
sha3sum(1): Print or Check SHA-3 Checksums
shasum(1): Print or Check SHA Checksums
shellcheck(1): Shell script analysis tool
spfquery.pl(1), spfquery(1) - (Mail::SPF): Checks if a given set of e-mail parameters matches a domain's SPF policy
splint(1): A tool for statically checking C programs
sqitch-check(3), Header "Name" sqitch-check(3): Checks for divergences between planned and deployed changes
sqitch-check-usage(3), Header "Name" sqitch-check-usage(3): Sqitch check usage statement
sqitch-checkout(3), Header "Name" sqitch-checkout(3): Revert, checkout another VCS branch, and re-deploy changes
sqitch-checkout-usage(3), Header "Name" sqitch-checkout-usage(3): Sqitch checkout usage statement
strictures::extra(3): enable or disable strictures additional checks
superclass(3): Like parent, but with version checks
svg_validate(1): This script scans a directory full of *.svg files and checks them to see if they have proper metadata. If so, it copies them into a target directory and creates a png of it. It also creates a list of PASS and FAIL for the different criteria
tickit_term_input_check_timeout_msec(3): terminal timeout behaviour
tstatd(1): Logs real-time accounting daemon SYNOPSIS tstatd [ options ] plugin [zone1:]wildcard1 .. [zoneN:]wildcardN OPTIONS "-a zone, --agregate-zone=zone" 4 Item "-a zone, --agregate-zone=zone" Agregate data from all anonymous logs (wildcards without explicit zone specified) into zone. Default behavior is to create new zone for each anonymous log from its file name. "-b file, --database-file=file" 4 Item "-b file, --database-file=file" Use file as persistent storage to keep accumulated data across daemon restarts. Default is auto generated from daemon name, specified identity and '.db' suffix. "--basename" 4 Item "--basename" Use only base name (excluding directories and suffix) of anonymous log file for auto-created zones. "-c dir, --change-dir=dir" 4 Item "-c dir, --change-dir=dir" Change current directory to dir before wildcards expanding. "-d, --debug" 4 Item "-d, --debug" Composition of options: --foreground and --log-level=debug. "-f, --foreground" 4 Item "-f, --foreground" Don't detach daemon from control terminal, logging to stderr instead log file or syslog. "--log-facility=name" 4 Item "--log-facility=name" Use name as facility for syslog logging (see syslog (3) for list of available values). Default is 'daemon'. "--log-level=level" 4 Item "--log-level=level" Set minimal logging level to level (see syslog (3) for list of available values). Default is 'notice'. "--log-file=file" 4 Item "--log-file=file" Use logging to file instead of syslog logging (which is default). "-e num, --expand-period=num" 4 Item "-e num, --expand-period=num" Do wildcards re-expanding and checking for new and missed logs every num seconds. Default is '60'. "-h, --help" 4 Item "-h, --help" Print brief help message about available options. "-i string, --identity=string" 4 Item "-i string, --identity=string" Just a string used in title of daemon process, syslog ident (see syslog|(3)), --database-file and --pid-file. Idea behind this options - multiple tstatd instances running simultaneosly. "-l [address:]port, --listen=[address:]port" 4 Item "-l [address:]port, --listen=[address:]port" Specify address and port for TCP listen socket binding. Default is '127.0.0.1:3638'. "--multiple" 4 Item "--multiple" With this option specified same log file could be included into several zones (if log name satisifies several wildcards). Default behavior is to include log file only in first satisified zone. "-n num, --windows-num=num" 4 Item "-n num, --windows-num=num" Set number of sliding-windows to num. Default is '60'. "-o string, --options=string" 4 Item "-o string, --options=string" Comma-separated plugin supported options (like a mount (8) options). "--override-from=file" 4 Item "--override-from=file" Load content of file into plugin package namespace. This is way to easy customize plugin behavior without creating another plugin. "-p file, --pid-file=file" 4 Item "-p file, --pid-file=file" Use file to keep daemon process id. Default is auto generated from daemon name, specified identity and '.pid' suffix. "--parse-error=level" 4 Item "--parse-error=level" Do logging with level (see syslog (3) for available values) about all unparsed log lines. Hint: use 'none' for ignoring such lines. Default is defining by plugin and usually is 'debug'. "-r pattern, --regex=pattern" 4 Item "-r pattern, --regex=pattern" Use pattern instead of plugin default regular expression for matching log lines. "--regex-from=file" 4 Item "--regex-from=file" Load regular expression from file and use instead of plugin default regular expression for matching log lines. "-s num, --store-period=num" 4 Item "-s num, --store-period=num" Store accumulated data in a persistent storage every num seconds. Default is '60'. "--timer=zone:timer:num" 4 Item "--timer=zone:timer:num" Create named timer firing every num seconds for zone. "-u <user>, --user=user" 4 Item "-u <user>, --user=user" Change effective privileges of daemon process to user. "-v, --version" 4 Item "-v, --version" Print version information of tstatd and exit. "-w num, --window-size=<num>" 4 Item "-w num, --window-size=<num>" Set size (duration) of sliding window to num seconds. Default is '10'
tt_is_err(3): check status value
ttdbck(1m): display, check, or repair ToolTalk databases
ttmedia_Deposit(3): send a Deposit request to checkpoint a document
tv_check(1): Check TV guide listings
ubic-watchdog(1), ubic_watchdog(1): watchdog which checks all ubic services
use-devel-checklib(1): (DEPRECATED)a script to package Devel::CheckLib with your code
v.build(1), v.build (1): Creates topology for vector map. Optionally also checks for topological errors
venti-client(3), vtconnect(3), vthello(3), vtread(3), vtwrite(3), vtreadpacket(3), vtwritepacket(3), vtsync(3), vtping(3), vtrpc(3), ventidoublechecksha1(3): Venti client
venti-fmt(8), buildindex(8), checkarenas(8), checkindex(8), conf(8), fmtarenas(8), fmtbloom(8), fmtindex(8), fmtisect(8), syncindex(8): prepare and maintain a venti server
venti-mem(3), vtbrk(3), vtmalloc(3), vtmallocz(3), vtrealloc(3), vtstrdup(3), vtfree(3): error-checking memory allocators
whirlpoolsum(1): Print or check WHIRLPOOL checksums
wigwam(1): check the Hiawatha webserver configuration for non-critical errors
wxCheckBox(3): Functions for wxCheckBox class
wxCheckListBox(3): Functions for wxCheckListBox class
xml_spellcheck(1): spellcheck XML files
xmlparse(1): error-check and validate XML documents
zip_source_is_deleted(3): check if zip_source is deleted
zmaudit.pl(8): ZoneMinder event file system and database consistency checker
zmrecover.pl(8): ZoneMinder event file system and database recovery checker
zmupdate.pl(8): check and upgrade ZoneMinder database
zzip_file_real(3), zzip_dir_real(3), zzip_realdir(3), zzip_realfd(3): check real or zipped file

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