Virtuozzo Containers is a popular virtualization platform, which is used to set up virtual servers on physical machines. Each VPS created with it is a separate software emulation of a server, therefore it has its own OS. The system resources are also preset, therefore if you order a VPS plan with certain CPU, RAM and disk space quotas, they're always available to you and will not be shared with any other user on the server. The Virtuozzo Containers software is very intuitive and easy to use, so even if you don't have a lot of experience, you'll be able to control your entire server using a web-based graphical interface. With a couple of clicks, you can easily start/stop/reboot the virtual machine, set firewall rules, install server-side software and do a variety of maintenance tasks. You can also track what amount of resources your web sites use live and all this data will show you if you'll need upgrading as you expand your online presence. If needed, you can even reset the entire VPS to its original software installation.