Mastering SSH Key-Based Authentication

Passwords are prone to brute-force attacks. SSH keys provide a more secure and convenient way to log into your servers. To generate a new key pair, use:

ssh-keygen -t ed25519 -C "your_email@example.com"

Once generated, you can copy the public key to your server using:

ssh-copy-id user@your_server_ip

This ensures that only users with the private key can access the system, significantly reducing the risk of unauthorized entry...