What is WebHost Manager (WHM)?
cPanel's WebHost Manager (WHM) is a web application that provides administrative control of your Virtual Private Server (VPS) or Dedicated server. You use WHM with cPanel to create individual accounts, add domains, manage hosting features, and perform basic maintenance. End users can control everything from adding or removing email accounts to administering MySQL databases.
For more information about cPanel and WHM visit the cPanel website at http://www.cpanel.net.