VPS or Virtual Private Server is the technique of creating multiple servers out of a single physical server. The main advantage of this method is to get rid of the expense of buying too many physical servers. The working of VPS is through a division of a single physical server into many logical servers. Each of these servers is capable of independent operation.

The attractive feature of VPS is the duplication of the physical server into servers that can execute on its own machine and has all the functionalities of a real server. The servers can be rebooted on its own and has an operating system on its own that can help independent execution.

The end user will never have to compromise on anything in VPS as the user is free to install any software compatible to the OS that is running in their server. There can be a few firewalls or anti-virus programs that hesitate to execute in a virtual environment, but they are not worthy of pointing as the disadvantages of VPS.

VPS allows better security to the multiple hosting environments. When the physical server is virtually split into two, it is possible to test the crucial modifications of software in either of the two servers. This spares the production level that is hosted in the partner, from crucial problems of updating. The software running in one of the virtual servers will never affect any other server connected to the same physical server. This ensures privacy and security among the independent servers in a VPS.

 The main use of VPS was started with the mainframe architecture. This was to find a solution for reducing the expense of obtaining too many main frame servers which are also expensive. But technological advancements have made VPS useful in other architectures using Linux servers.

The simplest execution of the servers in this virtualization technique cannot access the hardware connected to the original physical server. The physical server runs a program once it starts working, which independently boots the multiple servers connected one by one. Virtualization can be implemented in two main ways. The software based virtualization allows the virtual servers to execute on the same kernel by sharing the resources of the physical server to which they are connected. In contradiction to this, hardware based virtualization allocates the hardware independently for each server through partitioning.

`In VPS, the virtual servers can enjoy CPU, memory, bandwidth and all other resources just like a real server. They can handle multiple file systems in these servers. A highly efficient control panel permits the presence and management of multiple servers in the virtualized environment. It is by virtue of this highly advanced control panel that they are capable of installing software in their virtual server.

Because of the immense functionalities possible in virtual private servers, they have become the favorite of the web hosting resellers. They can take maximum advantage of web hosting without incurring the expense of dedicated servers for the clients. This help the medium scale business to a great extend. This is proven to be far more advantageous than any other virtualization techniques available so far.