The Virtual Private Server functions mostly like a
dedicated server. This means that you have the freedom of installing any software you want to, on your
VPS server. If you choose
managed VPS hosting option, the server hosting service will manage all your operational and management hassles and you will have limited scope for addition of software systems. If you are managing the VPS server on your own, you can get full administrator root access to the server. This gives you the freedom to configure, manage and maintain the system, just the way you want. You get the freedom of using the software you want to.