We use this most often to connect to a development environment which is running locally anyway, but you can achieve the same effect (without opening ports to th

We use this most often to connect to a development environment which is running locally anyway, but you can achieve the same effect (without opening ports to the general internet!) with port forwarding over SSH; then you just connect to "localhost" on your selected port, which forwards to selected port on "localhost" on the remote server. It probably goes without saying that you wouldn't enable this on production, in any case -- hitting a breakpoint wouldn't be nice to whoever hits it!