Virtuozzo Containers is software, that's used to create virtual servers on a physical hosting server. It allows VPS accounts to be created and controlled separately of each other, so each can have its very own OS as well as a fixed and ensured amount of system resources, for instance CPU time, disk space, physical memory, et cetera. You're able to stop, start or reboot the server, to set up many different software packages, to do numerous maintenance tasks, to set up firewall rules and even to reboot the entire server to its original state through a very intuitive web interface. You can also keep close track of the used and the available resources and on the running processes, in order to have an idea when the eventual development of your websites will require a package upgrade as well. Virtuozzo provides you with complete control over your VPS and you are able to control everything conveniently, even if you don't have much experience.