Linux
Connect to your server over SSH
First login, keys, and turning off password authentication.
First login
Use the IPv4 and username on the server page. On macOS or Linux: ssh USER@YOUR-IP. On Windows, use the built-in OpenSSH client. If a key was installed at create time, no password is required. If you received a one-time password, change it immediately after login.
Add a key later
Append your public key to /root/.ssh/authorized_keys (permissions 700 on .ssh, 600 on the file). Confirm a second session works, then set PasswordAuthentication no in sshd_config and restart ssh. Keep the portal console available until you are sure the key works.