In my last video, we talked about the technology behind #SSH and also discussed how to configure SSH server and the client for the key-based authentication using Keygen command. I wanted to show you how to protect your #private_key using a passphrase and how system will react when you try to establish an SSH connection but the video became little longer. So I created this short video to demonstrate that feature and also to explain ssh-add command to add your passphrase for the current session so that you don't have to keep typing #passphrase every time you want to establish an SSH connection with the remote server. It's very important that you login to remote server using a secured method and with the increasing attacks, it's safe to avoid using username and password to login to the server and use public key authentication method which uses public/private key pair to authenticate the users to the remote server.