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1.3.0
profiles/sssd/README
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Pavel Březina
profiles: update nsswitch.conf due to user-nsswitch.conf removal
06 дек 2021, 16:12
06 дек 2021, 16:12
3e3a473
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Enable SSSD for system authentication (also for local users only) ================================================================= Selecting this profile will enable SSSD as the source of identity and authentication providers. SSSD provides a set of daemons to manage access to remote directories and authentication mechanisms such as LDAP, Kerberos or FreeIPA. It provides an NSS and PAM interface toward the system and a pluggable backend system to connect to multiple different account sources. More information about SSSD can be found on its project page: https://pagure.io/SSSD/sssd By default, local users are served from SSSD rather then local files if SSSD is enabled (however they authenticate via pam_unix). This has a performance benefit since SSSD caches the files content in fast in-memory cache and thus reduces number of disk operations. However, if you do not want to keep SSSD running on your machine, you can keep this profile selected and just disable SSSD service. The resulting configuration will still work correctly even with SSSD disabled and local users and groups will be read from local files directly. SSSD CONFIGURATION ------------------ Authselect does not touch SSSD's configuration. Please, read SSSD's documentation to see how to configure it manually. Only local users will be available on the system if there is no existing SSSD configuration. AVAILABLE OPTIONAL FEATURES --------------------------- with-faillock:: Enable account locking in case of too many consecutive authentication failures. with-mkhomedir:: Enable automatic creation of home directories for users on their first login. with-ecryptfs:: Enable automatic per-user ecryptfs. with-smartcard:: Enable authentication with smartcards through SSSD. Please note that smartcard support must be also explicitly enabled within SSSD's configuration. with-smartcard-lock-on-removal:: Lock screen when a smartcard is removed. with-smartcard-required:: Smartcard authentication is required. No other means of authentication (including password) will be enabled. with-fingerprint:: Enable authentication with fingerprint reader through *pam_fprintd*. with-pam-u2f:: Enable authentication via u2f dongle through *pam_u2f*. with-pam-u2f-2fa:: Enable 2nd factor authentication via u2f dongle through *pam_u2f*. without-pam-u2f-nouserok:: Module argument nouserok is omitted if also with-pam-u2f-2fa is used. *WARNING*: Omitting nouserok argument means that users without pam-u2f authentication configured will not be able to log in *INCLUDING* root. Make sure you are able to log in before losing root privileges. with-silent-lastlog:: Do not produce pam_lastlog message during login. with-sudo:: Allow sudo to use SSSD as a source for sudo rules in addition of /etc/sudoers. with-pamaccess:: Check access.conf during account authorization. with-altfiles:: Use nss_altfiles for passwd and group nsswitch databases. with-mdns4:: Enable multicast DNS over IPv4. with-mdns6:: Enable multicast DNS over IPv6. with-files-domain:: If set, SSSD will be contacted before "files" when resolving users and groups. The order in nsswitch.conf will be set to "sss files" instead of "files sss" for passwd and group maps. with-files-access-provider:: If set, account management for local users is handled also by pam_sss. This is needed if there is an explicitly configured domain with id_provider=files and non-empty access_provider setting in sssd.conf. *WARNING:* SSSD access check will become mandatory for local users and if SSSD is stopped then local users will not be able to log in. Only system accounts (as defined by pam_usertype, including root) will be able to log in. without-nullok:: Do not add nullok parameter to pam_unix. EXAMPLES -------- * Enable SSSD with sudo and smartcard support authselect select sssd with-sudo with-smartcard * Enable SSSD with sudo support and create home directories for users on their first login authselect select sssd with-mkhomedir with-sudo SEE ALSO -------- * man sssd.conf(5)