Kick out SSH users inactive for N minutes
More often than not we find some random SSH connection still active, with the owner having forgotten about it. We should terminate SSH connections after e.g. 5 or 10 minutes of inactivity. This ensures we don't end up with random connections lingering, and it should hopefully also force developers to make sure any commands they're running are detached (e.g. in a tmux). I'm pretty sure OpenSSH has an option for this.
@ahmadsherif I have randomly assigned this to you using a Ruby script, feel free to re-assign if necessary.