0:00 Theory behind the SSH technology 10:58 Setup Public Key Authentication for SSH If you are working as a system admin, it's very likely that you are going to use #SSH if not already using it to remotely login #Linux servers. If you are still using password based authentication method, it's time to change it to key-based authentication method which gives you more secure and robust way of accessing servers which is backed by the strength of public key #cryptography. With the increase in number of cyber attacks, you should avoid using username and password to login to your severs as much as possible. In this video, I am going to walk you through all the necessary steps to disable the password based authentication and configure SSH server and the client for the key-based authentication method, also known as public key authentication method. In the first half of the video, I will talk about the cryptography theory behind the SSH technology and in the second half, I am going to show you the configuration part for the server and the client machine.