What is a reverse connection in port forwarding, and when is it used?

A reverse connection occurs when the client cannot directly reach the transit server, so the transit server initiates a connection back to the client. This is useful for bypassing firewalls or NAT restrictions. The [article](/news/penetration-basics-port-forwarding-and-proxying) explains reverse connection methods using tools like EarthWorm’s `lcx_slave` mode.