Virtuozzo Containers is a popular virtualization platform, that's used to set up virtual servers on physical machines. Each VPS made with it is an independent software emulation of a website hosting server, therefore it has its own OS. The resources are also fixed, which means that when you obtain a VPS plan with certain disk space, RAM and CPU quotas, they are always at your disposal and will not be shared with another client on the physical server. The Virtuozzo Containers software is exceptionally intuitive and user-friendly, so even if you don't have much experience, you can manage the entire server with a web-based graphical interface. With just a few clicks, you'll be able to start/stop/reboot your virtual machine, manage firewall rules, set up server-side software and perform a number of maintenance tasks. You can also watch the amount of resources your websites use live and all this info can tell you whether you need an upgrade as you expand your world-wide web presence. If needed, you can even reset the whole VPS to its original software installation.