I always forget how to do this, so I have to look it up each time. This will make it easier the next time. It is so simple, just I always forget.
First, I need to generate my ssh pub and private keys on the host server: ssh-keygen
Second, I need to copy the pub key to the remote server: ssh-copy-id -i id_rsa.pub email@example.com
Then, that it! Now that I wrote it down, I won’t forget it… I hope.