Your browser does not support HTML5 local storage or you have disabled it. Some functionality on this site, including saving your privacy settings and offering you special discounts, uses local storage and may not work with local storage disabled. We recommend allowing the use of local storage in your browser. In some browsers, it is the same setting used for disabling cookies.
The above ssh2 command connects to remote Secure Shell server unix.example.com, creates a local listener on port 2345, instructs the remote Secure Shell server to forward the incoming traffic to localhost:2345, and goes to background in single-shot-mode.