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How and Why to Change the Default SSH Port on Linux

In this tutorial, we will show you how to change the SSH default port in Linux, and go over why changing this default port is a good idea. SSH, also known as Secure Shell, is the most widely-used protocol for connecting to and managing Linux systems remotely. SSH offers strong encryption and authentication along with excellent customizability, and using SSH gives you the freedom of accessing a remote machine. You can run services and software as if you were physically using the machine, no matter where you are.