Patrick Debois ....:
You can use netcat in combination with the proxycommand. http://www.jedi.be/blog/2008/11/07/chaining-ssh-tunnels-easy-ssh-hopping/
Patrick, thanks very much. I think this is very close to what I wanna do, I think I will use it as a start point. I may need to add some extra authentication though to make sure that only the clients are connected that are allowed to.
Peter Künnemann wrote:Hi, Is there somebody here who could point me in the right direction? I am about to implement a sort of 'ssh bridge' that can be reached from devices behind a NAS gateway. The Idea is to bridge two clients in a way that they can talk to each other using ssh tunnels. Each client should use ssh to connect to a 'bridge server', the server should then somehow 'connect' these client session and allow tunneling sessions 'end to end'. The bridging should also be able to request credentials and/or use some other means of authentication maybe using rsa keys. (Client begind NAS) ------( server )-------(Client behind NAS) SSH -------> <------ SSH \_Bridge/ \______________tunnel_____________/ I am currently using ssh and rsa key to establish a session for each client. The session ends in a shell script (no command shell) that only allow some specific functions.The whole thing reminds me on the way TeamViewer seems to have implementedit but I could not find any clue in the net about how. Any hint would be very much apreciated. Thanks, Peter
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