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Censorship continues to be a big concern for China

A group of computer experts from the University of Cambridge claims that they are now able to circumvent the censorship mechanism that China uses to block unwanted content from reaching its citizens. Certain words are banned and certain websites are also banned. A user sitting within the country's network will not be able to reach websites for which the government has deemed inappropriate. China itself has defended its right to police the Internet for its citizens many times.

The group of researchers say that China's firewall is based on a a series of Cisco routers and the products work by censoring keywords. When a user wishes to access a websites that's banned, the router returns reset packets to the foreign website, severing the connection -- the data transmission is stopped at the foreign end-point. Using this bit of information on how the Cisco routers work, the researchers were able to find their way around the firewall by creating a system that ignores the reset packets sent by the Chinese routers.

Along with their discovery, the researchers also found that it was possible to create a denial-of-service (DoS) attack from within the firewall using the router's own blocking mechanisms. By masquerading the source IP address of a banned website to one that's within China's network, the researchers are able to ban users from within the network from accessing a Chinese government website for example.

Richard Clayton, spokesperson for the laboratory at the university told reporters that the researchers had reported the findings to the Chinese Computer Emergency Response Team.

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RE: cat and mouse
By BZDTemp on 7/5/2006 3:54:25 AM , Rating: 2
I'm afraid you're pretty wrong about it not being an industry!

In fact I'm pretty sure a good deal of the perverts making kiddie porn is partly or even fully in it for the money. It's no different than anything else - if there is a buyer willing to pay enough, or enough buyer willing to pay a little, chances are someone will also sell.

Here in Denmark hte ISP's are either running, or just about to run, filters to block kiddie porn and while I'm against censorship I must say that in this case it's hard to be againt. Fortunately I'm very sure the censorship thing will not spread as it has demonstrated not long ago censorship is not really something we do here in Denmark (Think cartoons depicting Allah and burning flags, then you know what Denmark thinks about censorship and freedom of speech)

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