Explain SSH tunneling process and limitations (for a remote Xdebug session)
问题 The Preamble I start up my local SSH terminal at work behind a firewall, and connect to a remote server all the time without any problem. The way Xdebug works, correct me if I'm wrong, is that it sends an "unsolicited" request to my network's port 9000. I actually initiated that action by sending the remote server an HTTP request through my browser with a POST/GET/COOKIE variable instructing xdebug to start up. But my network doesn't know that. All it knows is that it is getting a request on