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

     pam_nologin - NoLogin PAM module

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

     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

     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

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

NetBSD 9.99                      July 8, 2001                      NetBSD 9.99