Generate a New Pair of SSH Keys

Properties2

Type	Practice
Note created	Feb 17, 2025

This note covers the basic steps to generate a new pair of authentication keys to be used in SSH, to be identified with GitHub, Google Cloud Platform or any other remote server.

Due to personal preference, this will generate a key with no passphrase. For any other configuration check the GitHub guide to do so

On a Linux or macOS machine:

1. Generate the pair of keys using ssh-keygen -t ed25519 -C "example@example.com".
2. Select all the default options; leave the passphrase empty.
3. If not there already, add this snippet to ~/.ssh/config to configure all connections in SSH:

Host *
  AddKeysToAgent yes
  IdentityFile ~/.ssh/id_ed25519

4. Add the identity to the SSH agent: ssh-add ~/.ssh/id_ed25519