Check if you already have an available SSH key
ls $HOME/.ssh
If the files id_rsa and id_rsa.pub are in the ~/.ssh folder, you don’t
need to follow this guide, you already have your SSH key.
Create a new SSH key pair
ssh-keygen
Follow the instructions to generate a new SSH key pair. You will be asked to encrypt you private key with a password. This step is optional but for further security you may want to set one.
By default both private and public keys will be located in your $HOME/.ssh directory.