How To Set Up an OpenBSD Router – Step-by-Step Tutorial
This article is a step-by-step guide about how to set up OpenBSD system that will act as a network router that takes advantage of the OpenBSD's PF packet filter.
1. OpenBSD Installation
Install OpenBSD by using this tutorial.
Now that you have OpenBSD installed, lets proceed with the next step.
2. OpenBSD Network Configuration
The network interface is configured at boot time using the /etc/hostname.if files, where if will be replaced by the full name of your interface, for the example above, /etc/hostname.xl0.
The layout of this file is simple:
address_family address netmask broadcast [other options]
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China’s Great Firewall spreads overseas
A networking error has caused computers in Chile and the U.S. to come under the control of the Great Firewall of China, redirecting Facebook, Twitter, and YouTube users to Chinese servers.
Security experts are not sure exactly how this happened, but it appears that at least one ISP recently began fetching high-level DNS (domain name server) information from what's known as a root DNS server, based in China. That server, operated out of China by Swedish service provider Netnod, returned DNS information intended for Chinese users, effectively spreading China's network censorship overseas. China tightly controls access to a number of Web sites, using technology known colloquially as the Great Firewall of China.
Read more directly from the source.
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