SSH forwarding is very handy for use as a quick and easy temporary VPN.
Often you can be logged into a remote host before you realise you need a tunnel. Rather than logging out and in again with the tunnel arguments, it is possible to add or remove forwardings from an existing session by using:
<newline> ~C This should allow you to open up a SSH commandline on your local machine where you can add, edit or remote the list of current port forwardings using the standard format.
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