You can use the Dedicated Hosting Manager — available through the Dedicated/Virtual Dedicated Servers section of your account-management interface — to perform your basic account management, including account setup and monitoring of bandwidth usage. The manager also allows you to request a power cycle of your server and to submit trouble tickets for problems related to your dedicated server.
To Access your Dedicated Hosting Manager
For information on how to log in to your server to perform more advanced management tasks, see:
How do I access my Linux dedicated server using SSH?
How do I access the Plesk control panel on my dedicated server?