Virtuozzo Containers is a widely used virtualization platform, which is used to create virtual servers on physical machines. Each VPS made with it is an independent software emulation of a website hosting server, therefore it has its own Operating System. The system resources are also fixed, thus when you acquire a VPS package with certain disk space, CPU and RAM allocations, they will always be available and won't be shared with another user on the server. The Virtuozzo Containers software is very intuitive and easy to use, so even if you don't have much experience, you can control your entire server with a web-based graphical interface. With only a few clicks, you can easily start/stop/reboot the virtual machine, set firewall rules, install server-side software applications and do a number of maintenance tasks. You may also monitor what amount of system resources your websites are using in real time and all this info can show you whether you need upgrading when you expand your web presence. If needed, you're able to even reset the whole VPS to its original software installation.