NAME

       sssd-files - SSSD files provider

DESCRIPTION

       This manual page describes the files provider for sssd(8). For a detailed syntax reference, refer to the
       “FILE FORMAT” section of the sssd.conf(5) manual page.

       The files provider mirrors the content of the passwd(5) and group(5) files. The purpose of the files
       provider is to make the users and groups traditionally only accessible with NSS interfaces also available
       through the SSSD interfaces such as sssd-ifp(5).

       Another reason is to provide efficient caching of local users and groups.

       Please note that besides explicit domain definition the files provider can be configured also implicitly
       using 'enable_files_domain' option. See sssd.conf(5) for details.

       SSSD never handles resolution of user/group "root". Also resolution of UID/GID 0 is not handled by SSSD.
       Such requests are passed to next NSS module (usually files).

       When SSSD is not running or responding, nss_sss returns the UNAVAIL code which causes the request to be
       passed to the next module.

CONFIGURATION OPTIONS

       In addition to the options listed below, generic SSSD domain options can be set where applicable. Refer
       to the section “DOMAIN SECTIONS” of the sssd.conf(5) manual page for details on the configuration of an
       SSSD domain. But the purpose of the files provider is to expose the same data as the UNIX files, just
       through the SSSD interfaces. Therefore not all generic domain options are supported. Likewise, some
       global options, such as overriding the shell in the “nss” section for all domains has no effect on the
       files domain unless explicitly specified per-domain.

       passwd_files (string)
           Comma-separated list of one or multiple password filenames to be read and enumerated by the files
           provider, inotify monitor watches will be set on each file to detect changes dynamically.

           Default: /etc/passwd

       group_files (string)
           Comma-separated list of one or multiple group filenames to be read and enumerated by the files
           provider, inotify monitor watches will be set on each file to detect changes dynamically.

           Default: /etc/group

       fallback_to_nss (boolean)
           While updating the internal data SSSD will return an error and let the client continue with the next
           NSS module. This helps to avoid delays when using the default system files /etc/passwd and /etc/group
           and the NSS configuration has 'sss' before 'files' for the 'passwd' and 'group' maps.

           If the files provider is configured to monitor other files it makes sense to set this option to
           'False' to avoid inconsistent behavior because in general there would be no other NSS module which
           can be used as a fallback.

           Default: True

EXAMPLE

       The following example assumes that SSSD is correctly configured and files is one of the domains in the
       [sssd] section.

           [domain/files]
           id_provider = files

       To leverage caching of local users and groups by SSSD nss_sss module must be listed before nss_files
       module in /etc/nsswitch.conf.

           passwd:     sss files
           group:      sss files

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-files(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(8),
       sss_ssh_knownhostsproxy(8), sssd-ifp(5), pam_sss(8).  sss_rpcidmapd(5) sssd-systemtap(5)

AUTHORS

       The SSSD upstream - https://github.com/SSSD/sssd/

SSSD                                               08/12/2025                                      SSSD-FILES(5)