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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.txt exists, nologin displays its contents to
       the user instead of the default message.

       The exit code returned by nologin is always 1.

OPTIONS         top

       -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.

AUTHORS         top

       Karel Zak ⟨kzak@redhat.com⟩

SEE ALSO         top

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

HISTORY         top

       The nologin command appeared in 4.4BSD.

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
       2018-02-02.  (At that time, the date of the most recent commit that
       was found in the repository was 2018-02-01.)  If you discover any
       rendering problems in this HTML version of the page, or you believe
       there is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to
       man-pages@man7.org

util-linux                     September 2013                     NOLOGIN(8)

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