nologin - politely refuse a login

       Karel Zak <kzak@redhat.com>

       The nologin command is part of the util-linux package which can be downloaded from Linux Kernel Archive
       <https://www.kernel.org/pub/linux/utils/util-linux/>.

util-linux 2.41                                    2025-02-26                                         NOLOGIN(8)

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 status returned by nologin is always 1.

       The nologin command appeared in 4.4BSD.

       nologin - politely refuse a login

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

-c, --commandcommand--init-file-i--interactive--init-filefile-i, --interactive-l, --login--noprofile--norc--posix--rcfilefile-r, --restricted

       These shell command-line options are ignored to avoid nologin error.

       -h, --help
           Display help text and exit.

       -V, --version
           Display version and exit.

       For bug reports, use the issue tracker <https://github.com/util-linux/util-linux/issues>.

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

nologin [-V] [-h]