How to bridge networks with OpenVPN
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.
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