Shell In A Box – A Web-Based SSH Terminal to Access Linux via Browser Shell In A Box (pronounced as shellinabox) is a web-based terminal emulator created by Markus Gutschke. It has a built-in web server that runs as a web-based SSH client on a specified port and prompts you to a web terminal emulator to access and control your Linux Server SSH Shell remotely using any AJAX/JavaScript and CSS-enabl