Virtual Private Server (VPS) - A server that is split into several smaller, virtual ones.
VPS allows full access to the root account. For the management of VPS, the most commonly used software is Xen, VMware, FreeVPS, Virtuozzo, OpenVZ. Division of resources
The allocation of resources depends on the server administrator. Assigns guaranteed resources, hardware resources to which VPS must always have access, and those that can be reached temporarily when the server is not loaded. limitations
The main constraints depend on the state of the main machine (if the main machine is not running, no VPS is running). Some solutions (such as OpenVZ) do not have access to the kernel compilation of the operating system. This feature on the VPS with the solution called XEN greatly expands the VPS administrative capabilities. In most hosting companies, VPX (XEN) can also set up its own exchange memory.
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