I need to SFTP connect to a AWS server behind a NAT server in a private subnet. Login to both the NAT server and the private subnet server is done using private SSH keys.

In windows, there is WinSCP which lets you create a SSH tunnel through the NAT server and then connect to the private subnet server.

What options exist in the OS X environment? Fugu is old. No other GUI seems to support SSH Tunnels

I have yet to figure out the terminal command lines or combination of terminal command lines and existing SFTP GUIs that let me tunnel.


1 Answer 1


You can use local TCP forwarding in ssh, for example:

ssh -L 2222:private:22 user@gateway

And then connect any of your graphical tools to the private server by connecting to localhost:2222, or just use again command line sftp:

sftp private_user@localhost -P 2222
  • Thank you @Jakuje. For whatever reason previous answers just did not make total sense to me but your answer helped me do this. Dec 9, 2015 at 2:32

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