Having full root-level access signifies that you can access and update any kind of file on a specific server, including all of the system files, and to change system settings or install server-side software that may be necessary for certain scripts and even offline apps to function properly. A server is accessed at the root level through a root user, which has full privileges to do all of the abovementioned things. The root user can also make other users. For security reasons, you are advised to have a separate account for daily tasks and to use the root account only if you actually need to perform some task on your website hosting server. The root-level access function will give you full control over your server from any location, given that you have the user credentials.
Full Root-level Access in VPS Servers
You are able to take care of your new VPS servers at the root level regardless of the package which you've selected, as long as the server is ordered with either the cPanel or the DirectAdmin website hosting Control Panel, or devoid of Control Panel at all. In the first case, many system settings can be managed from an easy to use web-based interface, while in the second, you will have to do everything through a console, unless you decide to set up a Control Panel yourself. Either way, you will have full control over the VPS and any kind of system or custom content on it all the time, that makes this kind of web hosting perfect for any app that you can't run with a shared web hosting account because of the restricted degree of access - frameworks, VoIP and audio/video streaming software, and many others. The last VPS Control Panel alternative is Hepsia, but the root access to your server is restricted.
Full Root-level Access in Dedicated Servers
You'll have full root-level access to your dedicated server no matter which plan you pick during the registration process, as long as the server is provided with cPanel or DirectAdmin, or with no website hosting Control Panel at all. In all of these 3 cases, you can modify any part of the software environment in any way you see fit, that makes our server plans suitable for resource-demanding apps with specific requirements that cannot be covered if you use a shared website hosting account. The main difference between these options is that when you use cPanel or DirectAdmin, you will have a web-based graphical interface to manage various server-side options as well as any site content that you generate or upload, whereas if you order the server devoid of Control Panel, you'll have to perform everything with a Secure Shell console or to install a Control Panel of your own liking, if it is compatible with the OS which you have chosen during the sign up process. With the final Control Panel option which you'll be able to choose on the order page - Hepsia, the root access will be restricted.