Virtual server (VPS) is a hosting service where a powerful hardware server is divided into several logical virtual devices. For every virtual server (VPS) 100% of the server parameters, allocated and limited for it, according to the requested VPS hosting plan are guaranteed.
The client has a root access and the right to choose which OS and applications to install. Every virtual server can be operated through a separate OS and can be restarted independently from the rest.
Xen VPS hosting offers flexibility like a real dedicated server and the client can compile an own kernel to the OS – OpenVZ and Xen virtual servers are offered with the option for installation of a big variety of operating systems: CentOS, Fedora, Ubuntu, Debian, Arch Linux, openSUSE, Gentoo, Scientific Linux, Slackware, as well as FreeBSD, OpenBSD, NetBSD and Windows (only for Xen-HVM virtual servers).
A virtual server (VPS hosting) provides the flexibility and potentials of a dedicated server at a quite affordable price. VPS hosting is a service, which is most appropriate for companies that need absolute freedom and control over the server and guaranteed resources for their clients, and at the same time they are budget-oriented.