My hosted VPS server is based on Virtuozzo. When it was initially provided, I could access the Parallels Power Panel. When it was migrated to Ubuntu, it would no longer authenticate me with my root password.
I wonder if it is a groups/permissions issue.
(In my understanding, there is a clash of levels here - how can Power Panel use the root password of the very machine it is designed to manage? If my machine has hung, how can it read the password to reset it? I am obviously missing something.)