nologin(8)

1NOLOGIN(8)                   System Administration                  NOLOGIN(8)
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NAME

6       nologin - politely refuse a login
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SYNOPSIS

9       nologin [-V] [-h]
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DESCRIPTION

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

22       -c, --command command
23       --init-file
24       -i --interactive
25       --init-file file
26       -i, --interactive
27       -l, --login
28       --noprofile
29       --norc
30       --posix
31       --rcfile file
32       -r, --restricted
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34              These shell command-line options are ignored  to  avoid  nologin
35              error.
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37       -h, --help
38              Display help text and exit.
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40       -V, --version
41              Display version information and exit.
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NOTES

44       nologin  is a per-account way to disable login (usually used for system
45       accounts like http or ftp).  nologin(8)  uses  /etc/nologin.txt  as  an
46       optional  source  for a non-default message, the login access is always
47       refused independently of the file.
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49       pam_nologin(8) PAM module usually prevents all non-root users from log‐
50       ging  into  the  system.  pam_nologin(8) functionality is controlled by
51       /var/run/nologin or the /etc/nologin file.
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HISTORY

54       The nologin command appeared in 4.4BSD.
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AUTHORS

57       Karel Zak ⟨kzak@redhat.com⟩
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AVAILABILITY

63       The nologin command is part of the util-linux package and is  available
64       from Linux Kernel Archive ⟨https://www.kernel.org/pub/linux/utils/util-
65       linux/⟩.
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69util-linux                       November 2019                      NOLOGIN(8)