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The network looks like this : Server X -- My machine -- Server Y

My machine has SSH access to both boxes. Server Y has internet but not server X. How can I make a tunnel so server X can acces the internet through Y?

Thank you

  • Do we have to use a two-step tunnel or can we do things like enabling routing on your computer? – David King Dec 3 '15 at 20:30
  • Two-steps tunnel – user3916237 Dec 3 '15 at 20:36
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There are several ways of doing this but none of them are good solutions. The way I would probably do it if I had to is like this:

  1. From your machine, tunnel port 222 from your machine to port 22 server Y

    ssh -L222:localhost:22 servery

  2. From server X, create a dynamic tunnel from server X to server Y using the previously constructed tunnel. Note: your destination on this command is mymachine but the credentials you'll use are for server Y since it's what you're actually connecting to.

    ssh -D8080 -p 222 mymachine

  3. Setup server X with a system wide SOCKS Proxy of localhost:8080
  • How the second command would create a tunnel between X & Y? you're only giving it port 222 which has been forwareded on my machine to port 22 on Y. There is no reference to server X – user3916237 Dec 7 '15 at 14:37
  • I just edited my answer. The command on step #2 should be run from server X. – David King Dec 7 '15 at 14:42

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