84 lines
1.8 KiB
Groff
84 lines
1.8 KiB
Groff
.TH NOLOGIN 8 "November 2019" "util-linux" "System Administration"
|
|
.SH NAME
|
|
nologin \- politely refuse a login
|
|
.SH SYNOPSIS
|
|
.B nologin
|
|
.RB [ \-V ]
|
|
.RB [ \-h ]
|
|
.SH DESCRIPTION
|
|
.B nologin
|
|
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.
|
|
.PP
|
|
If the file
|
|
.IR /etc/nologin.txt exists ,
|
|
.B nologin
|
|
displays its contents to the
|
|
user instead of the default message.
|
|
.PP
|
|
The exit status returned by
|
|
.B nologin
|
|
is always 1.
|
|
.SH OPTIONS
|
|
\fB\-c\fR, \fB\-\-command\fR \fIcommand\fR
|
|
.br
|
|
\fB\-\-init-file\fR
|
|
.br
|
|
\fB\-i\fR \fB\-\-interactive\fR
|
|
.br
|
|
\fB\-\-init-file\fR \fIfile\fR
|
|
.br
|
|
\fB\-i\fR, \fB\-\-interactive\fR
|
|
.br
|
|
\fB\-l\fR, \fB\-\-login\fR
|
|
.br
|
|
\fB\-\-noprofile\fR
|
|
.br
|
|
\fB\-\-norc\fR
|
|
.br
|
|
\fB\-\-posix\fR
|
|
.br
|
|
\fB\-\-rcfile\fR \fIfile\fR
|
|
.br
|
|
\fB\-r\fR, \fB\-\-restricted\fR
|
|
.IP
|
|
These shell command-line options are ignored to avoid nologin error.
|
|
.IP "\fB\-h\fR, \fB\-\-help\fR"
|
|
Display help text and exit.
|
|
.IP "\fB\-V\fR, \fB\-\-version\fR"
|
|
Display version information and exit.
|
|
.SH NOTES
|
|
.B nologin
|
|
is a per-account way to disable login (usually used for system accounts like http or ftp).
|
|
.BR nologin (8)
|
|
uses
|
|
.I /etc/nologin.txt
|
|
as an optional source for a non-default message, the login
|
|
access is always refused independently of the file.
|
|
.PP
|
|
.BR pam_nologin (8)
|
|
PAM module usually prevents all non-root users from logging into the system.
|
|
.BR pam_nologin (8)
|
|
functionality is controlled by
|
|
.I /var/run/nologin
|
|
or the
|
|
.I /etc/nologin
|
|
file.
|
|
.SH HISTORY
|
|
The
|
|
.B nologin
|
|
command appeared in 4.4BSD.
|
|
.SH AUTHORS
|
|
.UR kzak@redhat.com
|
|
Karel Zak
|
|
.UE
|
|
.SH SEE ALSO
|
|
.BR login (1),
|
|
.BR passwd (5),
|
|
.BR pam_nologin (8)
|
|
.SH AVAILABILITY
|
|
The nologin command is part of the util-linux package and is available from
|
|
.UR https://\:www.kernel.org\:/pub\:/linux\:/utils\:/util-linux/
|
|
Linux Kernel Archive
|
|
.UE .
|