Note that this is a forwarded version from serverfault.com, and the original post is here.  Xen is an hypervisor that runs on metal (the pc / server) and then hosts virtual machines called domains.

Are you running VPS as a hosting solution? And do you want to know what kind of virtualization is it running on? Is it OpenVZ, V-server, Xen or UML, and how can I confirm this?

Recently I’m playing with Xen virtualization, and I came across one protential problem. As I need to share my guest machines to clients,  I must give them root privileges… that’s whats VPS-es all about… having root access to OS without having to purchase expensive physical ones.  So [...]

In a former post, we know how to use OpenVZ to create virtual system in CentOS, this article will show you how to install Windows under Xen on CentOS 5.3. We fixed one of the problems of Windows XP under Xen. Windows XP’s inability to shut itself down completely. Windows ends up on the ‘it [...]

This article will describe how to create OpenVZ container in CentOS 5.4. With OpenVZ you can create multiple Virtual Private Servers (VPS) on same hardware machine and running them simultaneously and efficiently. OpenVZ is the open-source branch of Virtuozzo, a commercial virtualization solution widely [...]

In virtualized environment, we sometimes need to generate MAC address for each virtual machine at the time of creation. Since is a nearly unlimited amount of numbers on the same subnet, it is almost impossible that we would get the same MAC address. In the follwing paragraph, we’ll show you how [...]