Virtuozzo Containers is software, that is used to make virtual servers on a physical server. It allows VPS accounts to be created and managed separately of one another, so each one can have its very own OS plus a fixed and warranted amount of resources, which include CPU time, disk space, physical memory, and so on. You'll be able to start, stop or restart the server, to set up various software packages, to do many different maintenance tasks, to create firewall rules and even to reboot the entire server to its initial state by using a very user-friendly web interface. You may 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 development of your websites will require a package upgrade too. Virtuozzo gives you complete control of your VPS and you will be able to control everything easily, even if you don't have a lot of experience.