ssh key pair based login alma linux

To set up key-based login for your AlmaLinux server, follow these steps:

  1. Generate SSH Key Pair with PuTTYgen:
    • Open PuTTYgen on your Windows PC.
    • Select “RSA” as the key type (or “ECDSA” for increased security).
    • Click “Generate” and move your mouse within the blank area to generate randomness.
    • Once generated, save the private key by clicking “Save private key.” You can name it something like alma_private_key.ppk.
    • Copy the public key displayed at the top. It should start with “ssh-rsa” if you used RSA.
  2. Add the Public Key to Your AlmaLinux Server:
    • Connect to your server using your existing password.
    • Run the following commands to set up the .ssh directory and authorized key file:bash