NOLOGIN(5) BSD File Formats Manual NOLOGIN(5)NAMEnologin — file disallowing and containing reason for disallowing logins
DESCRIPTION
The file /etc/nologin, if it exists, causes the login procedure, used by
programs such as login(1), to terminate. The program may display the
contents of /etc/nologin to the user before exiting.
This file is a simple mechanism to temporarily prevent incoming logins.
As such, the file /etc/nologin is created by shutdown(8) five minutes
before system shutdown, or immediately if shutdown is in less than five
minutes. The file /etc/nologin is removed just before shutdown(8) exits.
To disable logins on a per-account basis, see nologin(8).
The file /etc/nologin has no affect on the login procedure for the root
user.
FILES
/etc/nologin The nologin file resides in /etc.
EXAMPLES
NO LOGINS: System going down at 18:22
SEE ALSOlogin(1), ftpd(8), nologin(8), rshd(8), shutdown(8), sshd(8)BSD December 9, 2005 BSD