Having full root-level access signifies that you can access and customize each file on a particular server, including all system files, and to change system settings or set up server-side software that may be required by specific scripts and even offline apps to function appropriately. A server is accessed at the root level via a root user, who has full privileges to do all the abovementioned tasks. Your root user may also make other users. For safety reasons, you are advised to have a different account for routine tasks and to use the root account only if you actually need to perform a particular task on the server. The root-level access feature gives you full control over your server from any existing location, as long as you have the user credentials.