Enable Admin/Root Access (Managed or Fully Managed)
If you need root (i.e. sudo or substitute/super user) access to your Managed or Fully Managed Server, you can enable it. You might need this kind of access to install applications or make high-level changes to your server's configuration.
From the My Servers control panel, click Settings.
Next to Admin Access, click Change.
Make sure Enable your admin (root and sudo) access permission is selected.