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KEYMGR(8) Knot DNS KEYMGR(8) NAME keymgr - Knot DNS key management utility SYNOPSIS keymgr [config_option] [options] zone_name command keymgr [config_option] [options] keystore_id command keymgr [config_option] [-j] -l keymgr -t parameter... DESCRIPTION The keymgr utility serves for manual key management in Knot DNS server. Functions for DNSSEC keys and KASP (Key And Signature Policy) manage- ment are provided. The DNSSEC and KASP configuration is stored in a so called KASP data- base. The database is backed by LMDB. Parameters zone_name Name of the zone the command is executed for. Config options -c, --config file Use a textual configuration file (default is /usr/lo- cal/etc/knot/knot.conf). -C, --confdb directory Use a binary configuration database directory (default is /usr/local/var/lib/knot/confdb). The default configuration database, if exists, has a preference to the default configura- tion file. -D, --dir path Use specified KASP database path and default configuration. Options -t, --tsig tsig_name [tsig_algorithm [tsig_bits]] Generates a TSIG key for the given name. Optionally the key al- gorithm can be specified by its name (default: hmac-sha256) and a bit length of the key (default: optimal length given by algo- rithm). The generated TSIG key is only displayed on stdout: the command does not create a file, nor include the key in a key- store. -e, --extended Extended output (listing of keys with full description). -j, --json Print the zones or keys (not TSIG keys) in JSON format. -l, --list Print the list of zones that have at least one key stored in the configured KASP database. -x, --mono Don't generate colorized output. -X, --color Force colorized output in the normal mode. -h, --help Print the program help. -V, --version Print the program version. The option -VV makes the program print the compile time configuration summary. NOTE: Keymgr runs with the same user privileges as configured for knotd. For example, if keymgr is run as root, but the configured user is knot, it won't be able to read files (PEM files, KASP database, ...) readable only by root. Commands list [timestamp_format] Prints the list of key IDs and parameters of keys belonging to the zone. generate [arguments...] Generates new DNSSEC key and stores it in KASP database. Prints the key ID. This action takes some number of arguments (see be- low). Values for unspecified arguments are taken from corre- sponding policy (if -c or -C options used) or from Knot policy defaults. import-bind BIND_key_file Imports a BIND-style key into KASP database (converting it to PEM format). Takes one argument: path to BIND key file (private or public, but both MUST exist). import-pub BIND_pubkey_file Imports a public key into KASP database. This key won't be rolled over nor used for signing. Takes one argument: path to BIND public key file. import-pem PEM_file [arguments...] Imports a DNSSEC key from PEM file. The key parameters (same as for the generate action) need to be specified (mainly algorithm, timers...) because they are not contained in the PEM format. import-pkcs11 key_id [arguments...] Imports a DNSSEC key from PKCS #11 storage. The key parameters (same as for the generate action) need to be specified (mainly algorithm, timers...) because they are not available. In fact, no key data is imported, only KASP database metadata is created. nsec3-salt [new_salt] Prints the current NSEC3 salt used for signing. If new_salt is specified, the salt is overwritten. The salt is printed and ex- pected in hexadecimal, or dash if empty. master-serial [new_serial] Print SOA serial of the remote master stored in KASP database when using on-secondary DNSSEC signing. If new_serial is speci- fied, the serial is overwritten (not recommended). set key_spec [arguments...] Changes a timing argument (or ksk/zsk) of an existing key to a new value. Key_spec is either the key tag or a prefix of the key ID, with an optional [id=|keytag=] prefix; arguments are like for generate, but just the related ones. ds [key_spec] Generate DS record (all digest algorithms together) for speci- fied key. Key_spec is like for set, if unspecified, all KSKs are used. dnskey [key_spec] Generate DNSKEY record for specified key. Key_spec is like for ds, if unspecified, all KSKs are used. delete key_spec Remove the specified key from zone. If the key was not shared, it is also deleted from keystore. share key_ID zone_from Import a key (specified by full key ID) from another zone as shared. After this, the key is owned by both zones equally. Keystore commands keystore-test Conduct some tests on the specified keystore. For each algo- rithm, key generation, import, removal, and use (signing and verification) are tested. Use a configured keystore_id or - for the default. keystore-bench [num_threads] Conduct a signing benchmark on the specified keystore. Random blocks of data are signed by the selected number of threads (de- fault is 1) in a loop, and the average number of signing opera- tions per second for each algorithm is returned. Use a config- ured keystore_id or - for the default. Commands related to Offline KSK feature pregenerate [timestamp-from] timestamp-to Pre-generate ZSKs for use with offline KSK, for the specified period starting from now or specified time. This function also applies to non-offline KSK keys. show-offline [timestamp-from] [timestamp-to] Print pre-generated offline key-related records for specified time interval. If timestamp_to is omitted, it will be to infin- ity. If timestamp-from is omitted, it will start from the begin- ning. del-offline timestamp-from timestamp-to Delete pre-generated offline key-related records in specified time interval. del-all-old Delete old keys that are in state 'removed'. This function also applies to non-offline KSK keys. generate-ksr [timestamp-from] timestamp-to Print to stdout KeySigningRequest based on pre-generated ZSKs for specified time period. If timestamp-from is omitted, time- stamp of the last offline records set is used or now if no records available. sign-ksr ksr_file Read KeySigningRequest from a text file, sign it using local keyset and print SignedKeyResponse to stdout. validate-skr skr_file Read SignedKeyResponse from a text file and validate the RRSIGs in it if not corrupt. import-skr skr_file Read SignedKeyResponse from a text file and import the signa- tures for later use in zone. If some signatures have already been imported, they will be deleted for the period from begin- ning of the SKR to infinity. Generate arguments Arguments are separated by space, each of them is in format 'name=value'. A (bool) argument accepts values yes or no. If the value is omitted, it's interpreted as yes. algorithm Either an algorithm number (e.g. 14) or algorithm name (e.g. ecdsap256sha256). size Key length in bits. ksk (bool) The key will be used for signing DNSKEY rrset. The gener- ated key will also have the Secure Entry Point flag set to 1. zsk (bool) The key will be used for signing zone (except DNSKEY rrset). This flag can be set concurrently with the ksk flag (for a CSK key). sep (bool) Overrides the standard setting of the Secure Entry Point flag. for-later (bool) The key will be determined for later use. It means once a new key ought to be generated, this one will be used instead if the key type and algorithm match. The following arguments are timestamps of key lifetime (see DNSSEC key states): pre_active Key started to be used for signing, not published (only for al- gorithm rollover). publish Key published. ready Key is waiting for submission (only for KSK). active Key used for signing. retire_active Key still used for signing, but another key is active (only for KSK or algorithm rollover). retire Key still published (only if ZSK), but no longer used for sign- ing. post_active Key no longer published, but still used for signing (only for algorithm rollover). revoke Key revoked according to RFC 5011 trust anchor roll-over. remove Key deleted. Timestamps 0 Zero timestamp means infinite future. UNIX_time Positive number of seconds since 1970 UTC. YYYYMMDDHHMMSS Date and time in this format without any punctuation. relative_timestamp A sign character (+, -), a number, and an optional time unit (y, mo, d, h, mi, s). The default unit is one second. E.g. +1mi, -2mo. Output timestamp formats (none) The timestamps are printed as UNIX timestamp. human The timestamps are printed relatively to now using time units (e.g. -2y5mo, +1h13s). iso The timestamps are printed in the ISO8601 format (e.g. 2016-12-31T23:59:00). EXIT VALUES Exit status of 0 means successful operation. Any other exit status in- dicates an error. EXAMPLES 1. Generate new TSIG key: $ keymgr -t my_name hmac-sha384 2. Generate new DNSSEC key: $ keymgr example.com. generate algorithm=ECDSAP256SHA256 size=256 \ ksk=true created=1488034625 publish=20170223205611 retire=+10mo remove=+1y 3. Import a DNSSEC key from BIND: $ keymgr example.com. import-bind ~/bind/Kharbinge4d5.+007+63089.key 4. Import a CSK DNSSEC key from a PEM file: $ keymgr example.com. import-pem 085d3890e8c22d854586678d9263933f2d02d795.pem ksk=yes zsk=yes 5. Configure key timing: $ keymgr example.com. set 4208 active=+2mi retire=+4mi remove=+5mi 6. Share a KSK from another zone: $ keymgr example.com. share e687cf927029e9db7184d2ece6d663f5d1e5b0e9 another-zone.com. SEE ALSO RFC 6781 - DNSSEC Operational Practices. RFC 7583 - DNSSEC Key Rollover Timing Considerations. knot.conf(5), knotc(8), knotd(8). AUTHOR CZ.NIC, z.s.p.o. and contributors <https://www.knot-dns.cz/> COPYRIGHT Copyright (C) CZ.NIC, z.s.p.o. and contributors 3.5.3 2026-01-16 KEYMGR(8)
NAME | SYNOPSIS | DESCRIPTION | EXIT VALUES | EXAMPLES | SEE ALSO | AUTHOR | COPYRIGHT
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