Virtuozzo Containers is software, that's used to generate virtual servers on a physical machine. It allows VPS accounts to be generated and controlled independently of each other, so each of them can have its unique OS in addition to a fixed and guaranteed quantity of system resources, which include CPU time, disk space, physical memory, et cetera. You are able to start, stop or reboot the server, to install a variety of software packages, to perform a variety of maintenance tasks, to create firewall rules and even to reset the entire server to its initial state through a very user-friendly web interface. You may also keep an eye on the used and the available resources and on the running processes, in order to have an idea if the eventual development of your websites will require a plan upgrade too. Virtuozzo will give you complete control of your VPS and you can control everything conveniently, even if you do not have much experience.