Learn how to set up Passwordless SSH in this video tutorial. SSH is a protocol to communicate between a server and client in an encrypted manner. It has replaced telnet protocol, which was not secure at all.
Almost all Linux sysadmins know about and use SSH to connect to Linux servers, as the physical and GUI access to the server is very limited. SSH is installed by default on most Linux distributions. In this tutorial, we will learn to access ssh sessions securely with the help of public/private keys authentication aka passwordless ssh setup.