Virtuozzo Containers is software, which is used to make virtual servers on a physical hosting server. It allows VPS accounts to be generated and handled separately of one another, so each can have its very own OS plus a fixed and guaranteed volume of resources, including CPU time, disk space, physical memory, and the like. You'll be able to stop, start or reboot the server, to install various software packages, to do many different maintenance tasks, to create firewall rules and even to reset the entire server to its original state using a very intuitive web interface. You may also monitor the used and the available system resources and on the running processes, so as to have an idea when the eventual growth of your websites will require a plan upgrade as well. Virtuozzo will provide you with full control over your VPS and you'll be able to control everything with ease, even if you do not have much experience.