Oracle Cloud Infrastructure Documentation

Adding Users on an Instance

If you created your instance using an Oracle-provided Linux or CentOS image, you can use SSH to access your instance from a remote host as the opc user. If you created your instance using the Ubuntu image, you can use SSH to access your instance from a remote host as the ubuntu user. After logging in, you can add users on your instance.

If you created your instance using an Oracle-provided Windows image, you can create new users after you log on to the instance through a Remote Desktop client.

Creating Additional SSH-Enabled Users on Linux Instances
Creating Additional Users on a Windows Instance