Keep alive ssh sessions

Sometimes firewalls time out idle sessions after a certain period of time.
We can avoid have our SSH sessions killed with a few options to keep alive ssh sesions.
We can configure the keep alive on the server side or on the client side.

• On the client side:
  We need to edit the ~/.ssh/config file and add or uncomment the following lines:

ServerAliveInterval 300
ServerAliveCountMax 2

• On the server side:
  We need to edit the /etc/ssh/sshd_config file and add or uncomment the following lines:

ClientAliveInterval 300
ClientAliveCountMax 2

Finally we need to restart our sshd server.

Thanks to Rodrigo Rega!

Enjoy! ;)