This zine is a Chinese translation of the Tunnel UP/Tunnel Down zine. It explains all about how virtual private networks function, why and when to use one, what free and open source software is available for running a VPN. Technical language is simple, yet still valuable to users with various backgrounds of computer knowledge. It gives examples of how the IPsec protocol and openVPN software can establish secure network connections.

You can download the pdf, or if you would like to support the vpn zines project consider purchasing a printed copy. You can send us an email to place the order.  Zines exchange is also welcome!