WHO NEEDS VPS?

The short answer is - every system administrator needs it. Some examples of practical applications:

• Web & Application hosting - all ranges on the same platform, from low-level shared to medium-power virtual server to powerful dedicated servers - seamless scaling up in the same safe virtual private server.
• Server consolidation - put together your existing servers and use more powerful and reliable hardware.
• Increase availability - keep an up-to-date copy of your virtual private server on another server, and start it in seconds in case of failure
• Education - each student gets its own virtual server with root access
• Testing - safe experimentation on the machine that runs another services
• Clean sandbox - install each service in its own freshly created Vritual Private Server, and you will never have to resolve dependency problems.
• Multiversioning - keep "snapshots" of the project you are working on and be able to switch back and forth in seconds
• Improve network services security - run each server in its own Virtual Private Server. If the application has a security hole, only this particular virtual private server will be compromised, never the whole system.