I'm working with Server running Ubuntu Server 14.04. I use
Plink to request some reverse tunnels from a remote computer to the server.
For some ports that works just fine, but for most ports it seems like the server refuses the request. It works for ports that are regularly used for this application like the VNC port
5900, the RDP port
3389, and the MySQL port.
It also seems to work for
5901-5999. I would like to get the other ports working too, but I can't figure out why it refuses those forwarding requests.
There are no custom rules in the IPtables and it is an almost clean install.