I have started an Ubuntu 15.10 instance on Google Cloud and installed Webmin as per here:
http://www.webmin.com/deb.html
Webmin has been installed successfully and I can see the login page in my browser window, however I need to type my username along with my password with sudo level access to login and start using Webmin.
I've used the SSH via the browser window so have never set a password for any sort of access to the root.
Does anyone know how to set a password for myself to login as a sudo user on my instance?