Virtuozzo Containers is a well-liked virtualization platform, that's used to generate virtual servers on physical machines. Each VPS made with it is an independent software emulation of a hosting server, which means that it has its own OS. The resources are also predefined, which means that if you get a VPS plan with certain CPU, disk space and RAM quotas, they will always be available and won't be shared with any other user on the physical server. The Virtuozzo Containers software is particularly intuitive and easy to use, so even if you don't have much experience, you can control the entire server through a web-based graphical interface. With only a few clicks, you can easily start/stop/reboot the virtual machine, set firewall rules, set up server-side software and do numerous maintenance tasks. You can also monitor the amount of resources your sites are using live and all of this info can show you whether you should have upgrading as you expand your web presence. When needed, you can even reset the entire VPS to its original software installation.