> While some servers are directly accessible, some are not. We need to do tunneling for it. BTW, you can set tunneling in your ~/.ssh/config, so that you do `s

> While some servers are directly accessible, some are not. We need to do tunneling for it. BTW, you can set tunneling in your ~/.ssh/config, so that you do `ssh <server>` and it connects automagically. (I know this is not what you asked, but I hope it helps)