NOLOGIN - Online Linux Manual Page

Section : 8
Updated : 2022-05-11
Source : util−linux 2.38.1
Note : System Administration
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NAMEnologin − politely refuse a login

SYNOPSISnologin [−V] [−h]

DESCRIPTIONnologin displays a message that an account is not available and exits non−zero. It is intended as a replacement shell field to deny login access to an account. If the file /etc/nologin.txt exists, nologin displays its contents to the user instead of the default message. The exit status returned by nologin is always 1.

OPTIONS−c, −−command command −−init−file −i −−interactive −−init−file file −i, −−interactive −l, −−login −−noprofile −−norc −−posix −−rcfile file −r, −−restricted These shell command−line options are ignored to avoid nologin error. −h, −−help Display help text and exit. −V, −−version Print version and exit.

NOTESnologin is a per−account way to disable login (usually used for system accounts like http or ftp). nologin uses /etc/nologin.txt as an optional source for a non−default message, the login access is always refused independently of the file. pam_nologin(8) PAM module usually prevents all non−root users from logging into the system. pam_nologin(8) functionality is controlled by /var/run/nologin or the /etc/nologin file.

HISTORYThe nologin command appeared in 4.4BSD.

AUTHORSKarel Zak <kzak@redhat.com>

SEE ALSOlogin(1), passwd(5), pam_nologin(8)

REPORTING BUGSFor bug reports, use the issue tracker at <https://github.com/util−linux/util−linux/issues>.

AVAILABILITYThe nologin command is part of the util−linux package which can be downloaded from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils/util−linux/>.
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