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Cross the Great Firewall of China

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an introduction of Great Firewall of China

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Cross the Great Firewall of China

  1. 1. Cross the Great FireWall of China Bin Cai
  2. 2. Introduction
  3. 3. Beautiful World of Internet
  4. 4. Great FireWall• Great Wall, most famous attraction in China;• operated by the Ministry of Public Security;• start in 1998;• block websites which government don’t want people to access.
  5. 5. Methods
  6. 6. Methods used to block website• IP blocking;• DNS filtering and redirection;• URL filtering;• Package filtering;• Connection reset.
  7. 7. Bypass
  8. 8. How to bypass GFW• Proxy server located outside of China;• Auto-proxy software and onion routing, such as FreeGate;• APIs;• SSH tunnel;• VPN.
  9. 9. Conclusion
  10. 10. Conclusion• China has strict regulations on the Internet;• We always have a way;• Desire for freedom is irresistible.
  11. 11. Reference• Ignoring the Great Firewall of China, Richard Clayton, Steven J. Murdoch, and Robert N. M. Watson, Computer Laboratory, University of Cambridge, accessed 17 September 2011
  12. 12. Q &A