What is a VPN? Why should you use one?

VPN stands for Virtual Private Network. They are used for providing users access to a private network (as well as the servers and other computers on that network) through remote, unsecured points outside the network without jeopardizing the network's security.

It builds a tunnel through unsecured networks so that clients can access their own private network without any interference from other parts of unsecured networks. Since the private data is going to be transmitted through the internet, it has to be kept secure. A VPN does this by encrypting and subsequently authenticating data packets so that access is only allowed to users with the necessary permission.

VPN services can be used for transmitting any form of data including voice and video. They can also be accessed on any computer and mobile operating systems including OSX, Windows, iOS and Android. All you need is an active internet connection and you're good to go.

As far as the mechanics associated with opening a VPN are concerned, it can use technology including TLS (Transport Layer Security), SSL (Secure Sockets Layer) and IPSec (Internet Protocol Security) for encrypting data packets and establishing secure tunnels for them to pass through. SSL and TLS are the most useful ones while IPSec does have some problems when it comes to IP address translation. Both ends of the tunnel will be authenticated with access points so that users are identified using either biometrics or passwords. As long as digital certificates have been stored, a connection can be maintained without further authentication.

There are a number of technologies which can be used for routing VPN's like MPLS (Multi Label Protocol Switching). This variety means there are a lot of possible solution for any VPN client depending on whether they are looking for software based access points, restricted access, mobile access, etc.

This technology is invaluable to people who are constantly on the move and need to access or store data on a fixed private network. It is a vital tool for companies where employees operate outside the central office location. VPN's can be used by employees for communicating with colleagues, accessing and sharing private files, emails and other business resources as if they were actually sitting in the office.

VPN's have also become quite popular in countries where there are restrictions with regard to internet access like China and India. They can be used for establishing private connections with private networks located in unrestricted locations which allows users to browse the internet without any restrictions. It can be used for watching TV shows on Netflix, visiting U.S. only websites like Pandora and Spotify, etc.

As a VPN client, it makes more sense for you to open an account with VPN providers instead of buying the VPN software yourself. This will allow you to benefit from the additional services VPN providers offer. These services include advanced security protection, technical support, monitoring software and malware protection.

So now that you know what a VPN is. Perhaps it's time you considered using one?