Virtuozzo Containers is software, that's used to generate virtual servers on a physical machine. It allows VPS accounts to be created and managed separately of each other, so each one can have its unique OS and a fixed and guaranteed volume of system resources, such as CPU time, disk space, physical memory, et cetera. You can stop, start or reboot the server, to set up a variety of software packages, to do many different maintenance tasks, to set up firewall rules and even to reset the entire server to its original state through a very intuitive web interface. In addition, you can keep close track of the used and the available resources and on the active processes, to have an idea whether the eventual development of your Internet sites will require a package upgrade as well. Virtuozzo offers you complete control of your VPS and you're able to manage everything effortlessly, even if you don't have a lot of experience.