install webmin pada Ubuntu 11.04

Barusan install Ubuntu server 11.04, kemudian install webmin.
setelah coba masuk ke webmin: https://serverubuntu:10000/
ternyata gak bisa login. nah, utk mengatasi masalah itu, begini caranya:

You will need to create a password for root. 

Log in localy or via ssh: 

$sudo passwd root. 

Entre your password. 

Entre your new root password. 

Log in to webmin as root through https://serverubuntu:10000/

Then under Webmin -->Webmin Users--> Create a new Webmin user. 

Log out then log in as the user you just created. 

To remove the password from root: sudo passwd -l root 

Worked for me on Ubuntu server 11.04 with Webmin 1.550