Virtuozzo Containers is a widespread virtualization platform, which is used to set up virtual servers on physical machines. Each VPS made with it is a standalone software emulation of a website hosting server, so it has its own OS. The system resources are also preset, so if you buy a VPS package with certain disk space, CPU and RAM quotas, they're always available and won't be shared with any other customer on the physical server. The Virtuozzo Containers software is exceptionally intuitive and user-friendly, so even if you do not have a lot of experience, you can manage the whole server with a web-based graphical interface. With just a few clicks, you can easily start/stop/reboot your virtual machine, manage firewall rules, install server-side software packages and perform plenty of maintenance tasks. You can also watch what amount of system resources your websites use live and this info can inform you whether you'll need upgrading while you expand your online presence. When needed, you will be able to even reset the whole VPS to its original software installation.