OpenVPN is software for Virtual Private Networking (VPN). OpenVPN can be downloaded and used for free. It runs on Windows, Linux and Mac OS X operating systems and is developed and maintained by an Internet open source community.
VPNs protect data traffic across public networks like the Internet. Using one improves the security of a computer when connected to Wi-Fi hotspots or company remote access servers. To establish VPN connections via OpenVPN requires an OpenVPN server be installed and its configuration data available to clients. Network administrators at schools or businesses normally provide these VPN servers.
The base OpenVPN package contains only command line applications for client and server setup. Separate programs exist for graphical user interfaces (GUI) to OpenVPN designed to make the software easier to use. The OpenVPN GUI project represents one of several such applications for a Windows client, while OpenVPN Control provides a server side GUI.
OpenVPN bases its network security on Secure Sockets Layer (SSL) technology.
Where to Find:
OpenVPN can be downloaded for free from openvpn.net - see OpenVPN Downloads