การตั้งค่า Timeout ของ ssh , sshd

1. As root open your sshd_config file in an editor.

   su -

   vim /etc/ssh/sshd_config



2. Add the following lines.

   ClientAliveInterval 600

   ClientAliveCountMax 3



3. Restart the sshd process.

   service sshd restart

That's it. That will keep you logged in for 30 minutes at a time without activity. (600 seconds x 3)