text: Secure Shell or SSH is a secure means of controlling a remote machine.
  Closing a Hung Session
  Type enter, tilde (~), period, enter to exit a hung SSH session.
  You can tunnel single ports or run a socks proxy with SSH. Google for SSH forwarding or see the howto below.
  This will open a Socks proxy on port 6969. Configure your applications to proxy through localhost:6969 to use the tunnel.
  ssh -D 6969 email@example.com
  Tunnel single port
  This opens a tunnel to milton.vtluug.org which is redirected through acidburn.
  ssh -L 6969:milton.vtluug.org:22 firstname.lastname@example.org
  now, on your machine, open a new shell, and run:
  ssh localhost -p 6969 -l wadsworth
  to ssh into milton as wadsworth.