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PAM_NOLOGIN (8) | System administration commands and daemons | Unix Manual Pages | :man


pam_nologin - NoLogin PAM module


NoLogin Authentication Module
See Also


[service-name] module-type control-flag pam_nologin [options]


The NoLogin authentication service module for PAM, pam_nologin provides functionality for only one PAM category: authentication. In terms of the module-type parameter, this is the "auth" feature. It also provides a null function for session management.

NoLogin Authentication Module

The NoLogin authentication component (pam_sm_authenticate), always returns success for the superuser, and returns success for all other users if the file /var/run/nologin does not exist. If /var/run/nologin does exist, then its contents are echoed to non-superusers before failure is returned. If a "nologin" capability is specified in login.conf(5), then the file thus specified is used instead. This usually defaults to /var/run/nologin.

The following options may be passed to the authentication module:

debug syslog(3) debugging information at LOG_DEBUG level.
no_warn suppress warning messages to the user. These messages include reasons why the user’s authentication attempt was declined.


syslog(3), login.conf(5), nologin(5), pam.conf(5), pam(8)

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