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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.

For this setup I’ll assume that you have two networks, A and B, in different locations, both connected to the Internet with broadband. At each location you will need a Linux system acting as a router/firewall to serve as the VPN end point. I’m using two Asus WL-500G Deluxe routers running OpenWRT RC5 — a Linux distribution for embedded routers — but you’re free to use the hardware and distribution of your choice. You can use one of the BSDs, Mac OS X, or even Windows; check the documentation on OpenVPN’s homepage for a list of supported operating systems. If your use OpenBSD, have a look at the article Creating secure wireless access points with OpenBSD and OpenVPN.

http://tips.linux.com/article.pl?sid=06/11/07/213217&from=rss

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중국발 공격 어떻게 막으시나요?

http://kldp.org/node/73105

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