How to Create an SSH Key and configure key-based authenication on your linux server

Intro SSH is an encrypted protocol used to communicate with and administer servers. It is very often used to access and manage Linux servers remotely. If you manage Linux systems regularly, you will probably spend a lot of time working in a terminal connected through SSH. While there are a few different ways to log in to an SSH server, in this guide, I’ll focus on setting up SSH keys. SSH keys provide an extremely secure way to log in to your server. For this reason, this is the method I recommend for all users. SSH keys are a more secure way to authenticate than passwords. Password-based authentication can be vulnerable to brute-force attacks, but SSH keys rely on cryptographic key pairs that significantly improve the security of server access. SSH authentication works with a public–private key pair. The private key stays on the client machine and must always remain secret. The public key is placed on the server in the ~/.ssh/authorized_keys file, which allows the server to recognize