Virtuozzo Containers is software, which is used to make virtual servers on a physical hosting server. It allows VPS accounts to be set up and controlled separately of each other, so each one can have its own OS plus a fixed and ensured amount of system resources, such as CPU time, disk space, physical memory, and so on. You're able to start, stop or restart the server, to set up a variety of software packages, to perform various maintenance tasks, to create firewall rules and even to reboot the entire server to its original state by using a very intuitive online interface. You may also keep close track of the used and the available system resources and on the active processes, to have an idea if the eventual growth of your sites will require a package upgrade too. Virtuozzo will give you complete control over your VPS and you are able to manage everything easily, even when you do not have much experience.