Updated: 2025/Nov/16

Please read Privacy Policy. It's for your privacy.

PAM_NOLOGIN(8)              System Manager's Manual             PAM_NOLOGIN(8)

NAME
     pam_nologin - NoLogin PAM module

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

DESCRIPTION
     The NoLogin authentication service module for PAM 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 /etc/nologin does not exist.  If /etc/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
     /etc/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.

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

NetBSD 11.99                     July 8, 2001                     NetBSD 11.99