Terminate a frozen SSH session

I work remotely via a VPN and am often plagued by frozen SSH sessions (especially if I step away from my desk for any length of time).  I always used to close the shell/terminal - which is a bit annoying.  Then I came across the solution below, just type enter (in the frozen shell) then tilde and period/full-stop and you drop out of the ssh session.

	[Enter]
	~.

view raw ssh_termination.txt hosted with ❤ by GitHub