To cater to the requirements of the client, web hosting firms offer a wide range of web hosting services. Virtual Private network (VPN) is one of them 
and essentially a very important one in acquiring justified control of the web space. Thus, the need and the suitability affects the choice of the of the server and varies across businesses. This article discusses Virtual Private Networks briefly.
VPN: Features
VPN is one of the classes of web hosting service offered by the service providing firms. The features of VPN are most lucrative over the price of it. It is a private network in a public network. Users can send data from one computer to another over a public network as if it were a private network.
Why VPN
A common server resource is divided among different users over the network in such a manner that all users have a dedicated virtual server and autonomy over it even if they share a common hardware. User will have super level access and autonomy over their virtual server. Users can manipulate the server as per their needs provided they know the usage of tools. The data security is at the optimum level due to the client autonomy over the web space.
The merits
VPN provides features alike the dedicated server hosting. As a consequence, the user has sufficient autonomy levels over his share of the server. The features that will cost him extra dollars for the same dedicated server. Therefore, it’s appropriate for the users who do not have enough finances to hire a dedicated server.
The ease of command is yet another merit of this service where the user can use their share of virtual server as they like even if it’s part of a larger shared server.
The data security is another benefit in VPN. The shared server offers minimum data security. Many users sharing the server have access to the confidential data making it vulnerable. Unlike this, VPN has sufficient levels of security over the server.
The user has the flexibility of availing customized plans as per their requirement and need not pay additional charges for the services he do not want to avail. This is one more feature that is beneficial for small and medium scale industries that do not need the high end features of a dedicated server and cannot compromise their interests with the shared server.
The demerits
Even though users have an autonomy over the server, the fact is that they are part of a larger server that is being shared, and they are the owner of part of it known as virtual server. Hence all the VPN holders share a common hardware and the pros and cons of it is shared too. Occasionally hardware constraints affect the performance of the server affects the performance of the VPN also like bandwidth, speed of access, etc. Quite often, it is possible to have cross connections due to technical defects and data security can become vulnerable. Many times, the technical trouble shooting of other clients can have an adverse effect on your VPN as well.
But above all, VPN is an effective tool in managing the traffic among different users efficiently even though the bandwidth is limited for each VPN. As for small and medium business holders, VPN is a service that allows them with sufficient administrator privileges and help them in their business.