Virtuozzo Containers is software, which is used to generate virtual servers on a physical server. It allows VPS accounts to be generated and controlled independently of each other, so each can have its unique Operating System as well as a fixed and guaranteed quantity of resources, which include CPU time, disk space, physical memory, etc. You can start, stop or restart the server, to set up various software packages, to perform a variety of maintenance tasks, to set up firewall rules and even to reboot the entire server to its original state by using a very user-friendly web interface. You can also keep an eye on the used and the available resources and on the active processes, to have an idea when the eventual growth of your websites will require a plan upgrade too. Virtuozzo will give you full control of your VPS and you'll be able to control everything without any difficulty, even if you don't have a lot of experience.