How can I log in as root on my Virtual Private Server?
You cannot log in to your Virtual Private Server (VPS) remotely using "root." If you need "root" access on your Virtual Private Server (VPS), use the su - command once you have logged in with your User ID.
The su (short for substitute user) command makes it possible to log in as root temporarily while you are logged in with your normal User ID.
To use su to log in as "root," type:
su -
Your root password is the same as the password for your normal User ID.