Virtuozzo Containers is a popular virtualization platform, which is used to make virtual servers on physical machines. Each VPS created with it is a standalone software emulation of a hosting server, therefore it has its own OS. The resources are also preset, thus when you purchase a VPS plan with certain CPU, RAM and disk space allocations, they'll always be available and won't be shared with another user on the physical server. The Virtuozzo Containers software is particularly intuitive and easy to use, so even if you don't have a lot of experience, you will be able to manage the entire server through a web-based graphical interface. With only a few clicks, you can start/stop/reboot the virtual machine, set firewall rules, install server-side software programs and perform many different maintenance tasks. You can also monitor the amount of system resources your sites use in real time and all of this information will tell you if you should have an upgrade when you expand your world-wide web presence. When needed, you'll be able to even reset the whole VPS to its original software installation.