Virtuozzo Containers is software, that is used to make virtual servers on a physical hosting server. It allows VPS accounts to be set up and managed separately of one another, so each of them can have its very own Operating System plus a fixed and guaranteed volume of resources, such as CPU time, disk space, physical memory, and so on. You are able to start, stop or restart the server, to install various software packages, to perform various maintenance tasks, to create firewall rules and even to reboot the entire server to its initial state employing a very user-friendly online interface. You can also keep track of the used and the available system resources and on the active processes, in order to have an idea whether the eventual growth of your sites will require a package upgrade too. Virtuozzo provides you with complete control of your VPS and you are able to control everything without difficulty, even if you don't have a lot of experience.