SSH reverse tunnel. Allows you to make a connection from a remote machine, to the initiator of the tunnel, without having direct access to the network. For example, to login to a machine whose network does not allow incoming connections, that machine can execute the following: “ssh -f -N -R 14000:localhost:22 user@10.10.10.10 -p 2222” In this case the initiator will connect to the remote machine (10.10.10.10) through SSH on port 2222 and create a tunnel from the remote host localhost:14000 to the initiator SSH port 22. Once run, you can login to the initiator from the remote machine, by “ssh initiator_user@localhost -p 14000”. This works best when the remote machine accepts the pubkey from the initiator, otherwise a password needs to be entered.
Command Reference:
Local Port: Port of the machine creating the reverse tunnel
Remote Port Tunnel: The port of the remote machine, to which it listens as one end of the tunnel.
Remote Address Tunnel: Remote address the remote machine uses to listen for connections to the tunnel.
Remote User: User to login to the remote machine through ssh
Remote IP: IP address of the remote machine
Remote SSH Port: The port that the remote machine listens to for SSH connections
Command:
ssh -f -N -R <remote_port_tunnel>:<remote_address_tunnel>:<local_port> <remote_user>@<remote_ip> -p <remote_ssh_port>