keep SSH connections alive
You connect to a server via SSH, you take a coffee, and when you come back your terminal is stuck. If you are inactive for a while, your connection is cut by the server.
I use a very simple solution. Add this to your
alias ssh='ssh -o ServerAliveInterval=60'
This way the client sends a null packet to the server every minute, just to keep the connection alive.
You could also do this in different configuration files (see here).