Virtuozzo Containers is software, that's used to create virtual servers on a physical server. It allows VPS accounts to be generated and managed independently of each other, so each one can have its own Operating System in addition to a fixed and guaranteed volume of system resources, for instance CPU time, disk space, physical memory, etc. You'll be able to stop, start or reboot the server, to install different software packages, to do a variety of maintenance tasks, to create firewall rules and even to reboot the entire server to its initial state by using a very intuitive online interface. You can also keep track of the used and the available resources and on the running processes, to have an idea when the eventual development of your web sites will require a plan upgrade as well. Virtuozzo gives you full control of your VPS and you'll be able to manage everything without difficulty, even when you don't have a lot of experience.