NOLOGIN(5) | File Formats Manual | NOLOGIN(5) |
nologin
— disallow
logins
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 prevent
incoming logins systemwide.
To disable logins on a per-account basis, investigate nologin(8).
The nologin
file is ignored for user root
by default.
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.
nologin
login(1), login.conf(5), pam.conf(5), rc.conf(5), nologin(8), pam_nologin(8), shutdown(8)
May 10, 2007 | Mac OS X 12 |