nologin(5)                    File Formats Manual                   nologin(5)

NAME
       nologin - prevent unprivileged users from logging into the system

DESCRIPTION
       If the file /etc/nologin exists and is readable, login(1) will allow
       access only to root.  Other users will be shown the contents of this
       file and their logins will be refused.  This provides a simple way of
       temporarily disabling all unprivileged logins.

FILES
       /etc/nologin

SEE ALSO
       login(1), shutdown(8)

Linux man-pages 6.7               2022-10-30                        nologin(5)