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SSSD-SIMPLE(5) File Formats and Conventions SSSD-SIMPLE(5) NAME sssd-simple - the configuration file for SSSD's 'simple' access-control provider DESCRIPTION This manual page describes the configuration of the simple access-control provider for sssd(8). For a detailed syntax reference, refer to the "FILE FORMAT" section of the sssd.conf(5) manual page. The simple access provider grants or denies access based on an access or deny list of user or group names. Groups from other domains configured in sssd.conf, even if the simple access provider is used there as well, and groups managed outside of SSSD are not evaluated. The following rules apply: • It is not recommended to leave an option empty, it might cause errors. If you want to allow all users, do not specify any `simple_allow_users` or `simple_allow_groups`. • If any list is provided, the order of evaluation is: allow deny. This means that any matching deny rule will supersede any matched allow rule. • If either or both "allow" lists are provided, all users are denied unless they appear in at least one of these lists (OR condition). • If either or both "deny" lists are provided, all users are granted access unless they appear in at least one of these lists (OR condition). CONFIGURATION OPTIONS Refer to the section "DOMAIN SECTIONS" of the sssd.conf(5) manual page for details on the configuration of an SSSD domain. simple_allow_users (string) Comma-separated list of users who are allowed to log in. If this option is specified, all other users are denied unless they are members of groups listed in`simple_allow_groups`. simple_deny_users (string) Comma-separated list of users who are explicitly denied access. If this option is specified, these users will be denied regardless of whether they appear in `simple_allow_users` or `simple_allow_groups`. OR Logic Applies: A user will be denied access if they are listed in `simple_deny_users` or if they are a member of a group in `simple_deny_groups`. simple_allow_groups (string) Comma-separated list of groups that are allowed to log in. If this option is specified, all other users are denied unless they are explicitly listed in `simple_allow_users`. OR Logic Applies: A user can log in if they are listed in `simple_allow_users` or if they belong to a group in `simple_allow_groups`. This applies only to groups within this SSSD domain. Local groups are not evaluated. simple_deny_groups (string) Comma-separated list of groups that are explicitly denied access. This applies only to groups within this SSSD domain. Local groups are not evaluated. OR Logic Applies: A user will be denied access if they are listed in `simple_deny_users` or if they are a member of any group in `simple_deny_groups`. This applies only to groups within this SSSD domain. Local groups are not evaluated. Specifying no values for any of the lists is equivalent to skipping it entirely. Beware of this while generating parameters for the simple provider using automated scripts. EXAMPLE The following example assumes that SSSD is correctly configured and example.com is one of the domains in the [sssd] section. This example shows only the simple access provider-specific options. [domain/example.com] access_provider = simple simple_allow_users = user1, user2 simple_deny_users = user3, user4 simple_allow_groups = allowed_group1 simple_deny_groups = denied_group1 NOTES The complete group membership hierarchy is resolved before the access check, thus even nested groups can be included in the access lists. Please be aware that the "ldap_group_nesting_level" option may impact the results and should be set to a sufficient value. (sssd-ldap(5)) option. SEE ALSO sssd(8), sssd.conf(5), sssd-ldap(5), sssd-ldap-attributes(5), sssd- krb5(5), sssd-simple(5), sssd-ipa(5), sssd-ad(5), sssd-idp(5), sssd- sudo(5), sssd-session-recording(5), sss_cache(8), sss_debuglevel(8), sss_obfuscate(8), sss_seed(8), sssd_krb5_locator_plugin(8), sss_ssh_authorizedkeys(1), sss_ssh_knownhosts(1), sssd-ifp(5), pam_sss(8). sss_rpcidmapd(5) AUTHORS The SSSD upstream - https://github.com/SSSD/sssd/ SSSD 06/11/2026 SSSD-SIMPLE(5)
NAME | DESCRIPTION | CONFIGURATION OPTIONS | EXAMPLE | NOTES | SEE ALSO | AUTHORS
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