53 lines
1.4 KiB
Groff
53 lines
1.4 KiB
Groff
.TH NOLOGIN 8 "September 2013" "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 /etc/nologin.txt exists, nologin displays its contents to the
|
|
user instead of the default message.
|
|
.PP
|
|
The exit code returned by
|
|
.B nologin
|
|
is always 1.
|
|
.PP
|
|
.SH OPTIONS
|
|
.IP "\fB\-h, \-\-help\fP"
|
|
Display help text and exit.
|
|
.IP "\fB-V, \-\-version"
|
|
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 /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 /var/run/nologin or the /etc/nologin file.
|
|
.SH AUTHORS
|
|
.UR kzak@redhat.com
|
|
Karel Zak
|
|
.UE
|
|
.SH SEE ALSO
|
|
.BR login (1),
|
|
.BR passwd (5),
|
|
.BR pam_nologin (8)
|
|
.SH HISTORY
|
|
The
|
|
.B nologin
|
|
command appeared in 4.4BSD.
|
|
.SH AVAILABILITY
|
|
The nologin command is part of the util-linux package and is available from
|
|
.UR ftp://\:ftp.kernel.org\:/pub\:/linux\:/utils\:/util-linux/
|
|
Linux Kernel Archive
|
|
.UE .
|