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Building an always available Linux terminal: Shell-In-A-Box on Raspberry Pi

Recently I was looking for a way to SSH from a network that blocked my outgoing SSH connection. I’d be nice to have a way around firewalls and be able to access your private Linux terminal. To be able to debug a problem from an remote location, for example.

A collegue suggested a tool called ‘Shell In A Box‘. Shell In A Box implements a web server that can export arbitrary command line tools to a web based terminal emulator using just JavaScript and CSS without any additional browser plugins. This means: connecting your browser via HTTPS to your own hosted Shell In A Box web site, and access a Linux terminal from there.