How to setup SSH server on Ubuntu 16.04

First of all – what is SSH? Secure Shell (SSH) is a cryptographic network protocol for operating network services securely over an unsecured network. Wikipedia said… Imagine this situation: you have server at your office and you are at home. You want to do some things on the server from your home. Using SSH protocol you can have a terminal from your server on your computer at home. And finally…

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