How to Temporarily Disable User Logins

1. Become superuser.

2. Create the /etc/nologin file using an editor.

   # vi /etc/nologin

3. Include a message regarding system availability.

4. Close and save the file.

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.***