Virtuozzo Containers is a popular virtualization platform, that's used to create virtual servers on physical machines. Every VPS created with it is a standalone software emulation of a server, so it has its own OS. The system resources are also fixed, which means that if you order a VPS plan with certain disk space, RAM and CPU quotas, they'll always be available to you and won't be shared with some other client on the physical server. The Virtuozzo Containers software is really intuitive and easy to use, so even if you don't have a lot of experience, you can manage the whole server using a web-based graphical interface. With only a couple of clicks, you can easily start/stop/reboot your virtual machine, set firewall rules, set up server-side software and perform numerous maintenance tasks. You can also track what amount of resources your websites are using in real time and all this information will inform you if you should have upgrading when you expand your world-wide web presence. When needed, you'll be able to even reset the entire VPS to its original software setup.