VPN means Virtual Private Network, which is basically a secure connection between two or more devices. It doesn’t physically exist, it is just a temporary encrypted connection between your computer and our servers and as only we have the encryption keys, it is private to us.
Well suppose the government of the United Arab Emirates decided that they did not want their people to access Facebook, they can simply firewall all access to facebook.com on the country’s telecommunications equipment and straight away you would not be able to access Facebook.
However, by connecting to our service first, your network traffic would go directly from your computer to one of our secure servers and only then out on the Internet to Facebook. The UAE telecoms people can only see a secure connection to us, they are not able to trace or block your connection to Facebook. Conversely, suppose the board at Twitter (or more likely one of the media companies such as Hulu, ABC, NBC and etc.) decided that their service was only going to be available to U.S based customers, they could simply block access from any location outside of the U.S on their servers.
Again, by using our service and connecting to one of our secure U.S based servers, Twitter would think you are in the U.S and therefore grant you full access. These are fairly generic examples but the principle is simple in which by connecting to our servers, you get to choose which country your computer appears to be in and therefore which rules govern your Internet connection.
OpenVPN is both a VPN protocol and software that uses VPN techniques to secure point-to-point and site-to-site connections.
Currently, it’s one of the most popular VPN protocols among VPN users.