Today is a great day to rotate your SSH key. Mine was 13 years old πŸ’€

Use Ed25519 when generating a new keypair, and be sure to protect it with a passphrase:

$ ssh-keygen -t ed25519 -C your@email.address

To add the key to a remote server:

$ ssh-copy-id -f ~/.ssh/id_ed25519.pub user@host

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