Our Linux hosting accounts are managed users the powerful DirectAdmin control panel. DirectAdmin is intuitive but if you are unsure about how to do something you can access the extensive user guide at http://www.site-helper.com/
The control panel details for your account can be found within the 'Services' section of the client portal.
Once in the Services menu you will need to click through the list of services to the specific package. Next, click the cog icon next to your domain to reveal a subset of the hosting management. Within this menu you can find your DirectAdmin details via the 'Login Details' menu.