How to install an Opensource VPN Server on Linux

One of the most concerning thoughts I have while browsing, Is how can I ensure that my data remains private and secure ? In my search for answers, I came cross a number of ways in which you can remain anonymous like using a proxy website. But still using a third party service was not assuring enough. What I needed was a software which could be installed and run by me thus ensuring that I and only I would have access to the data. So what is such a software called? Read more at http://techarena51.com/index.php/how-to-install-an-opensource-vpn-server-on-linux