Virtual server
the service, the essence of which is to provide the user with a virtual dedicated server.
Within each virtual server you can create your own versions of system libraries or modify existing ones.
A virtual server owner can also modify any files and install their own applications.
Virtual server does the work of a single physical server. On one machine can be run multiple virtual servers.
Each virtual server provides complete control and management as it provides a normal dedicated server.
Each virtual server has its own processes, resources, configuration and administration.