0

I have 2 computers on linux (ubuntu like), both are on separated local networks (192.168.xxx.xxx).

I would like to connect through ssh to Linux2 from Linux1 but it doesn't have any public IP.

I have also a public server (srv.domain.com) I suppose that both PC could connect to server and it would be able to forward commands ??

But I can't figure out how to do that. Is someone already did something similar and can explain it to me.

I have root access on all machines

Thanks a lot for your help !!!

Pokkke
  • 65
  • 4
  • 1
    Your question isn't about programming, so it's off-topic for StackOverflow. Nevertheless, [this answer](http://unix.stackexchange.com/a/46271/13377) might help shed some light on how tunnels work, and where you connect what to what. – ghoti Jul 08 '16 at 07:34

1 Answers1

0

The easiest way would be to make the firewall/router allow ssh connections between the hosts. But there is another way:

If your server can reach both clients, you can ssh onto the server and redirect a port to the ssh on the other machine:

ssh -L 1234:CLIENT2:22 -l USERNAME SERVERNAME

after logging into the the machine open another terminal window and enter:

ssh -l USERNAME -p 1234 localhost
  • USERNAME should be replaced with the username on the server/second client.
  • CLIENT2 should be replaced by the ip or hostname of the second client.
  • SERVERNAME should be replaces by the name of your server.

You can also ssh onto the server and open another ssh session from there. But that would be to easy ;)

If your server cannot reach the clients you have to build the tunnel the other way round:

ssh -R 1234:22 -l USERNAME SERVERNAME

after logging into the the machine open a terminal window on the other machine and enter:

ssh -l USERNAME -p 1234 SERVERNAME
  • USERNAME should be replaced with the username on the server/second client.
  • SERVERNAME should be replaces by the name of your server.
mm2knet
  • 76
  • 9