OpenVPN is a free and open source VPN solution. VPN solution. As a result VPN allow to secure your data communications. It implements OSI layer 2 or 3 secure network extension using the SSL/TLS protocol. A VPN allows your yo connect securely to an insecure public network such as WiFi network at the airport or hotel. Almost companies also use VPN to access corporate or enterprise or home server resources. You can bypasss geo-blocked site and increase your privacy or safety online.