Virtuozzo Containers is a software solution, that's used to make virtual servers on a physical server. It allows VPS accounts to be set up and handled separately of each other, so each one can have its unique OS in addition to a fixed and warranted amount of resources, including CPU time, disk space, physical memory, et cetera. You'll be able to start, stop or restart the server, to install different software packages, to do a variety of maintenance tasks, to create firewall rules and even to reset the entire server to its original state by using a very user-friendly web interface. You can 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 growth of your web sites will require a package upgrade as well. Virtuozzo will give you complete control over your VPS and you'll be able to manage everything with ease, even if you don't have a lot of experience.