Virtuozzo Containers is a widespread virtualization platform, that's used to set up virtual servers on physical machines. Every VPS made with it is an independent software emulation of a hosting server, therefore it has its own OS. The system resources are also preset, so when you purchase a VPS plan with certain disk space, CPU and RAM quotas, they will always be readily available and will not be shared with any other client on the server. The Virtuozzo Containers software is really intuitive and convenient to use, so even if you don't have a lot of experience, you will be able to control the whole server using a web-based graphical interface. With only a couple of clicks, you can easily start/stop/reboot the virtual machine, set firewall rules, set up server-side software packages and perform various maintenance tasks. You can also watch how much system resources your sites use live and all this info will tell you whether you will need upgrading while you expand your world-wide web presence. If needed, you can even reset the entire VPS to its original software installation.