Virtuozzo Containers is software, that is used to make virtual servers on a physical hosting server. It allows VPS accounts to be generated and handled independently of one another, so each one can have its unique OS and a fixed and warranted volume of system resources, including CPU time, disk space, physical memory, and the like. You are able to stop, start or reboot the server, to install different software packages, to do a variety of maintenance tasks, to set up firewall rules and even to reboot the entire server to its initial state by using a very user-friendly online interface. You can also keep track of the used and the available system resources and on the running processes, in order to have an idea when the eventual growth of your sites will require a package upgrade too. Virtuozzo will give you complete control of your VPS and you're able to manage everything without any difficulty, even if you don't have a lot of experience.