NOLOGIN(5) Linux Programmer's 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) COLOPHON This page is part of release 4.16 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. Linux 2017-09-15 NOLOGIN(5)