To open a query using an external editor, control-click it and select Open with External Editor. You can set the file path of an external editor in Preferences. HTTP Tunneling is a method for connecting to a server that uses the same protocol (http://) and the same port (port 80) as a web server does. Secure SHell (SSH) is a program to log in into another computer over a network, execute commands on a remote server, and move files from one machine to another.