2019-11-17 02:33:04 -06:00
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.TH NOLOGIN 8 "November 2019" "util-linux" "System Administration"
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2013-09-30 06:36:26 -05:00
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.SH NAME
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nologin \- politely refuse a login
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.SH SYNOPSIS
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.B nologin
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.RB [ \-V ]
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.RB [ \-h ]
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.SH DESCRIPTION
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.B nologin
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displays a message that an account is not available and exits non-zero. It is
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2014-04-08 02:48:45 -05:00
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intended as a replacement shell field to deny login access to an account.
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.PP
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2020-07-24 05:06:13 -05:00
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If the file
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.IR /etc/nologin.txt exists ,
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.B nologin
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displays its contents to the
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user instead of the default message.
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.PP
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2020-05-19 07:54:07 -05:00
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The exit status returned by
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.B nologin
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is always 1.
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.SH OPTIONS
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\fB\-c\fR, \fB\-\-command\fR \fIcommand\fR
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.br
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\fB\-\-init-file\fR
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.br
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\fB\-i\fR \fB\-\-interactive\fR
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.br
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\fB\-\-init-file\fR \fIfile\fR
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.br
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\fB\-i\fR, \fB\-\-interactive\fR
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.br
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\fB\-l\fR, \fB\-\-login\fR
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.br
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\fB\-\-noprofile\fR
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.br
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\fB\-\-norc\fR
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.br
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\fB\-\-posix\fR
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.br
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\fB\-\-rcfile\fR \fIfile\fR
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.br
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\fB\-r\fR, \fB\-\-restricted\fR
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.IP
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These shell command-line options are ignored to avoid nologin error.
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.IP "\fB\-h\fR, \fB\-\-help\fR"
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Display help text and exit.
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.IP "\fB\-V\fR, \fB\-\-version\fR"
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Display version information and exit.
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.SH NOTES
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.B nologin
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is a per-account way to disable login (usually used for system accounts like http or ftp).
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.BR nologin (8)
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uses
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.I /etc/nologin.txt
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as an optional source for a non-default message, the login
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access is always refused independently of the file.
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.PP
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.BR pam_nologin (8)
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PAM module usually prevents all non-root users from logging into the system.
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.BR pam_nologin (8)
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functionality is controlled by
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.I /var/run/nologin
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or the
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.I /etc/nologin
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file.
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2020-05-21 02:28:21 -05:00
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.SH HISTORY
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The
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.B nologin
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command appeared in 4.4BSD.
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.SH AUTHORS
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.UR kzak@redhat.com
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Karel Zak
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.UE
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.SH SEE ALSO
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.BR login (1),
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.BR passwd (5),
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.BR pam_nologin (8)
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.SH AVAILABILITY
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The nologin command is part of the util-linux package and is available from
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.UR https://\:www.kernel.org\:/pub\:/linux\:/utils\:/util-linux/
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Linux Kernel Archive
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.UE .
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