By: Manolis Tzanidakis
OpenVPN is an easy-to-use open source VPN software based on SSL (Secure Sockets Layer) that offers cross-platform interoperability. The majority of OpenVPN tutorials I’ve found describe how users can connect to a corporate network from their laptops over insecure networks, such as the wireless network in a hotel. By contrast, the setup I’m about to describe is better suited for permanently connecting entire networks — for example, branch offices to the headquarters of a company.