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nologin(8) [opendarwin man page]

NOLOGIN(8)						    BSD System Manager's Manual 						NOLOGIN(8)

nologin -- politely refuse a login SYNOPSIS
The nologin utility displays a message that an account is not available and exits non-zero. It is intended as a replacement shell field for accounts that have been disabled. To disable all logins, investigate nologin(5). SEE ALSO
login(1), nologin(5) HISTORY
The nologin utility appeared in 4.4BSD. BSD
June 19, 1993 BSD

Check Out this Related Man Page

NOLOGIN(5)						      BSD File Formats Manual							NOLOGIN(5)

nologin -- 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 min- utes 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 ALSO
login(1), ftpd(8), nologin(8), rshd(8), shutdown(8), sshd(8) BSD
December 9, 2005 BSD
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