terminate all sessions
 

Hi there,
I have a server running CentOS which allows user to logon remotely with ssh. As root, how can I write a script to terminate all session started by other users other than root?

I'm not going to write your script for you but I will say that key components of such a script would be the kill utility and the killall utility.

Assuming root is local, just shutdown the nics (dirty, but quick and effective).

Yep, if root is on the console then

service network stop

would do it, but a bit of a blunt instrument.

service sshd stop

is better.

I think you can tweak the sshd config and bounce sshd.??