SSH or Secure Shell is a simple networking protocol that enables secure data communication. It allows safe remote shell services, command execution and ensures security between two connected devices. These devices can be connected over a secured or an unsecured network running SSH client programs. Generally, SSH enables users to remotely connect to a server. Port 22 is the standard port for SSH, however, users can transfer files through SFTP (SSH File Transfer Protocol/Secure File Transfer Protocol) or SCP (Secure Copy).
Enabling SSH doesn’t require in-depth technical knowledge, so you should be able to do it easily by following a bunch of steps. In this tutorial, we’ll cover the reasons you should enable SSH access and learn how to enable SSH on Ubuntu.