Generating SSH keys to log into a remote machine

1. Generate a new SSH key pair using ssh-keygen. When prompted, leave the pass phrase empty and just confirm with enter. The private SSH key serves as login information to the remote machine. Do not share it with anybody!

   ssh-keygen -t ed25519 -f my_ssh_key
   

2. Copy the generated SSH key to the cluster with ssh-copy-id.

   ssh-copy-id -i my_ssh_key myuser@cluster.example.com