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nologin(8) — Linux manual page

NOLOGIN(8)                System Administration               NOLOGIN(8)

NAME         top

       nologin - politely refuse a login

SYNOPSIS         top

       nologin [-V] [-h]

DESCRIPTION         top

       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.

       If the file /etc/nologin.txtexists, nologin displays its contents
       to the user instead of the default message.

       The exit status returned by nologin is always 1.

OPTIONS         top

       -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
              Display version information and exit.

NOTES         top

       nologin is a per-account way to disable login (usually used for
       system accounts like http or ftp).  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.

       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.

HISTORY         top

       The nologin command appeared in 4.4BSD.

AUTHORS         top

       Karel Zak ⟨kzak@redhat.com⟩

SEE ALSO         top

       login(1), passwd(5), pam_nologin(8)

AVAILABILITY         top

       The nologin command is part of the util-linux package and is
       available from Linux Kernel Archive 
       ⟨https://www.kernel.org/pub/linux/utils/util-linux/⟩.

COLOPHON         top

       This page is part of the util-linux (a random collection of Linux
       utilities) project.  Information about the project can be found
       at ⟨https://www.kernel.org/pub/linux/utils/util-linux/⟩.  If you
       have a bug report for this manual page, send it to
       util-linux@vger.kernel.org.  This page was obtained from the
       project's upstream Git repository
       ⟨git://git.kernel.org/pub/scm/utils/util-linux/util-linux.git⟩ on
       2020-12-18.  (At that time, the date of the most recent commit
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util-linux                    November 2019                   NOLOGIN(8)

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