Virtuozzo Containers is a popular virtualization platform, that is used to create virtual servers on physical machines. Each VPS created with it is a separate software emulation of a hosting server, therefore it has its own OS. The system resources are also predefined, so when you purchase a VPS plan with certain disk space, RAM and CPU quotas, they're always available and won't be shared with some other customer on the server. The Virtuozzo Containers software is truly intuitive and user-friendly, so even if you do not have a lot of experience, you will be able to manage the whole server with a web-based graphical interface. With only a couple of clicks, you will be able to start/stop/reboot the virtual machine, set firewall rules, install server-side software and do a range of maintenance tasks. You can also keep track of what amount of resources your websites are using in real time and this info will inform 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 setup.