Given the following setup:
Client <Firewall> Server
22 SSH |------initiate SSH Tunnel------> 22 SSH
+---------connect to SSH via Tunnel------12345
Is it possible that a client initiates a SSH tunnel with a server via passwordless login so that someone at the server side may connect via:
[Server]$ ssh -p 12345 user@localhost
and to be forwarded to the Client's port 22? And if that is possible, could someone please enlighten me how this is done?