How to generate and use key pairs with ssh-keygen

In this story, I explain how to generate and use RSA and Ed25519 key pairs with ssh-keygen.

SSH keys are based on :

  • a public part: it can be placed on servers,
  • a private part: it is kept on you or on your laptop.

To view the IP address of your host:

ip a

or :

hostname -I

Generate a RSA key

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