Secure Pipes This menu bar application allows you to manage SSH tunnels easily without having to worry too much about the SSH commands to either start them or restart them if they stop working. You can configure Local Forwards, Remote Forwards, or SOCKS proxy (dynamic forwarding).
The software acts as a management interface wrapper for OS X's existing SSH binary and does not interfere with any existing SSH configuration. It also maintains its own known hosts. This app is not available in the app shop because it contains features that are not permitted by the sandboxing requirements (e.g. binding to privileged port numbers, changing network settings, etc.).