Virtuozzo Containers is software, that is used to make virtual servers on a physical server. It allows VPS accounts to be set up and handled independently of one another, so each of them can have its unique Operating System plus a fixed and ensured amount of system resources, for example CPU time, disk space, physical memory, et cetera. You can stop, start or reboot the server, to set up a variety of software packages, to perform a variety of maintenance tasks, to set up firewall rules and even to reset the entire server to its initial state employing a very intuitive online interface. You can also keep close track of the used and the available system resources and on the active processes, so as to have an idea if the eventual growth of your sites will require a package upgrade as well. Virtuozzo will give you full control of your VPS and you're able to manage everything without difficulty, even when you don't have much experience.