Hello all, I'm having a difficult time understanding the difference between these two local tunnels. Here is how I see them: =========================================================================== 1) mymachine: $ ssh 5900:localhost:5900 remotehost ==> I'm sitting in front of a computer called mymachine, and ssh opens port 5900 for listening on mymachine and ties the other end of it to port 22 of a computer called remotehost. The ssh server on remote host then forwards anything it receives at this port from socket:(mymachine's IP, 5900) to socket:(remotehost IP, 5900). A schematic might go like this -- (mymachine's IP, 5900) --> (mymachine's IP, ssh-chosen port) --network--> (remotehost IP, 22) --> (remotehost IP, 5900) 2) mymachine: $ ssh 5900:remotehost:5900 remotehost ==> I'm in front of a computer called mymachine, and ssh opens port 5900 for listening on mymachine and ties it to port 5900 on a computer called remotehost. A schematic might look like this: (mymachine's IP, 5900) --network--> (remotehost IP, 22) --> (remotehost IP, 5900) =========================================================================== I'm pretty sure I have the right idea in the first instance, but I don't think I'm right on the second one. According to O'Reilly, the two command lines accomplish the same thing as far as forwarding the port, but there is a subtle difference in that the source sockets of the connection are different from the POV of the receiving end (remotehost IP, 22). Can somebody put me on the right track to understanding exactly what these commands accomplish? Thanks, Dan Arguello -- View this message in context: http://www.nabble.com/What-is-difference-between-%275900%3Alocalhost%3A5900-remotehost%27-and-%275900%3Aremotehost%3A5900-remotehost%27--tp17138548p17138548.html Sent from the SSH (Secure Shell) mailing list archive at Nabble.com.
