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How the Great Firewall Works

How the Great Firewall Works. Bill Xia Dynamic Internet Technology Inc. bill@dit-inc.us (bill@freenet-china.org). Outline . Internet 101 Internet censorship The “Matrix” Summary. The Internet/post office analogy . 100 1 st St. Shanghai China. Sibley Aud. Berkeley,CA USA.

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How the Great Firewall Works

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  1. How the Great Firewall Works Bill Xia Dynamic Internet Technology Inc. bill@dit-inc.us (bill@freenet-china.org)

  2. Outline • Internet 101 • Internet censorship • The “Matrix” • Summary

  3. The Internet/post office analogy 100 1st St. Shanghai China Sibley Aud. Berkeley,CA USA

  4. The Internet/post office analogy 202.99.23.208 169.229.131.109

  5. DNS Hijacking • epochtimes.com, rfa.org, anonymizer.com • dtnet, dtwang, dweb, dtw and various other domains that keep changing IP • www.3dweb.com, etc. -- victim of generalized blocking Websites redirected to bogus locations

  6. Other Internet censorship • Email • Instant Message (QQ), BBS, chat room (including Yahoo’s Chinese chat room), SMS etc. • Internet Cafes

  7. Voices from the Matrix: distrust You are anti-revolutionary

  8. Voices from the Matrix (II) • “You are anti-China.” • “How can China be this bad? You are lying.” • “There are many problems in China, but if we expose all the negative side, there will be turmoil.” • “Psychiatric patients said that he is Falun Gong and wants to kill people. How can you allow Falun Gong sites?” • “If I were Li Peng, I would have killed students on Tiananmen square as well.”

  9. Fear – truth or illusion • Is this safe? • 饱尝太岁颈上威，一日臣民一日贼。 欲加之罪何须有，草民岂敢惹是非。 “I am not interested in politics and just want live quietly.”

  10. Occupying people’s mind • Destroy traditional culture • Replace traditional Chinese characters • “drink, eat, man, woman” - all is allowed”I am not interested.”

  11. The coming crash of the Matrix • Blatant lies – illusion becomes unrealistic • SARS, HK anti-subversion law, Taiwan elections – cracks in the Matrix • Life and death issues • Critical mass: 300 –500k regular users

  12. Summary • China is blocking all communication avenues • Anti-censorship technologies reached maturity • Distrust, fear, lack of interest – major bottleneck • Critical mass of 500k regular users – within a year

  13. Timeline of the technology race IP blocking DNS Hijacking upgrade I upgrade II upgrade III? March 2001 May 2001 Nov. 2001 March 2002 July 2002 Sept. 2002 Nov. 2002 Feb. 2003 July 2003 Dec. 2004 Triangle Boy Freenet-China End of Triangle Boy and Proxy Dynaweb Ultrascape Freegate 3.x

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