My SSH config

Just in case you’re interested here’s my config. A great resource for some tricks with SSH (an amazing tool) is SSH Can do that?

# Enable connection sharing
ControlMaster auto
ControlPath /tmp/ssh_mux_%h_%p_%r
# Sometimes speeds up initial handshake
GSSAPIAuthentication no
Host *
    ForwardAgent yes 
    ForwardX11 yes 

Note that connection sharing is not always appropriate. The first connection made to the remote server must be kept open - a logout / Ctl-D will appear to hang if other sessions are sharing this connection. If you force it closed (e.g. with Ctl-C) all other sessions will be terminated.