test

System Administration Guide: Security Services

Example—Disabling User Logins

This example shows how to notify users of system unavailability.


# vi /etc/nologin
(Add system message here)
 
# cat /etc/nologin 
***No logins permitted.***

***The system will be unavailable until 12 noon.***

You can also bring the system to run level 0, single-user mode. For information on bringing the system to single-user mode, see “Shutting Down a System (Tasks)” in System Administration Guide: Basic Administration.