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NOLOGIN(5)		  FreeBSD File Formats Manual		    NOLOGIN(5)

NAME
     nologin --	disallow logins

DESCRIPTION
     Programs such as login(1) disallow	logins if the nologin file exists.
     The programs display the contents of nologin to the user if possible and
     interrupt the login sequence.  This makes it simple to temporarily	pre-
     vent incoming logins systemwide.

     To	disable	logins on a per-account	basis, investigate nologin(8).

SECURITY
     The nologin file is ignored for user root by default.

IMPLEMENTATION NOTES
     The nologin feature is implemented	through	login.conf(5), which allows to
     change the	pathname of the	file and to extend the list of users exempt
     from temporary login restriction.

     PAM-aware programs	can be selectively configured to respect nologin using
     the pam_nologin(8)	module via pam.conf(5).

     The nologin file will be removed at system	boot if	it resides in /var/run
     and cleanvar_enable is set	to ``YES'' in rc.conf(5), which	is default.
     Therefore system reboot can effectively re-enable logins.

FILES
     /var/run/nologin  default location	of nologin

SEE ALSO
     login(1), login.conf(5), pam.conf(5), rc.conf(5), nologin(8),
     pam_nologin(8), shutdown(8)

FreeBSD	10.1			 May 10, 2007			  FreeBSD 10.1

NAME | DESCRIPTION | SECURITY | IMPLEMENTATION NOTES | FILES | SEE ALSO

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<http://www.freebsd.org/cgi/man.cgi?query=nologin&sektion=5&manpath=FreeBSD+9.2-RELEASE>

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