Virtuozzo Containers is a widespread virtualization platform, which is used to set up virtual servers on physical machines. Every VPS made with it is a standalone software emulation of a server, so it has its own Operating System. The resources are also preset, which means that if you buy a VPS package with certain disk space, CPU and RAM allocations, they are always available and won't be shared with another client on the server. The Virtuozzo Containers software is very intuitive and convenient to use, so even if you don't have much experience, you can control your entire server with a web-based graphical interface. With a few clicks, you'll be able to start/stop/reboot the virtual machine, set firewall rules, install server-side software packages and do a variety of maintenance tasks. You may also watch the amount of resources your sites are using in real time and all this info can tell you if you need an upgrade while you expand your web presence. If needed, you can even reset the whole VPS to its original software configuration.