ssh proxy tunnel

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  1. You want to make use of the ProxyCommand option of ssh. Here is an example that uses one machine to connect to another.
  3. You can add the following to your ~/.ssh/config file.
  5. Host viatunnel
  6. IdentityFile ~/.ssh/inside_server_rsa
  7. ProxyCommand ssh -i ~/.ssh/proxy_server_rsa user@gateway.mynetwork "nc inside.mynetwork 22"
  8. user myself
  10. This will connect first to user@gatwway.mynetwork and use that to make a connection to myself@inside.mynetwork
  12. Now typing: ssh viatunnel will connect using this configuration.
  14. The ProxyCommand line basically runs 'nc' on the first hop of your connection and establishes a tunnel to port 22 on the second server. Then the outside ssh uses that to connect.
  16. See ProxyCommand here at the openssh manual

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