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sergio-gimenez/reverse_ssh.md

Last active July 14, 2022 17:03
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Access any machine remotely using reverse SSH tunnel
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reverse_ssh.md

How to access any machine through reverse SSH tunneling.

Things needed:

  • Restricted Machine: Machine unaccessible remotely that we want to have access.
  • Public Machine: A machine that can be accessed from anywhere. That might be because it uses a public IP or because it has a Dynamic DNS service such as DuckDNS or for other whatever reason.
  • Client to access the remote machine: Any machine that has internet access and SSH.

From restricted machine access public machine:

ssh username@publicIPaddress -R 5555:localhost:22

SSH to Public IP machine from the client:

ssh username@publicIPaddress -p 1598

Once inside the public machine, use reverse SSH to access the restricted machine:

ssh -p 5555 RestrictedMachineUsername@localhost
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