Virtuozzo Containers is a widely used virtualization platform, that's used to make virtual servers on physical machines. Every VPS created with it is a separate software emulation of a hosting server, so it has its own Operating System. The resources are also preset, therefore when you obtain a VPS plan with certain CPU, disk space and RAM allocations, they'll always be available to you and will not be shared with another customer 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 manage your entire server through a web-based graphical interface. With only a couple of clicks, you can start/stop/reboot your virtual machine, set firewall rules, install server-side software and perform a range of maintenance tasks. You can also monitor what amount of system resources your sites are using in real time and all of this information can tell you if you should have upgrading when you expand your web presence. When needed, you'll be able to even reset the entire VPS to its original software installation.