Cross the Great FireWall of China

Bin Caibc2e10@ecs.soton.ac.uk

Introduction

Beautiful World of Internet

http://www.appappeal.com/web-2-0-application-world-mosaic/

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.

Methods

Methods used to block website

• IP blocking;

• DNS filtering and redirection;

• URL filtering;

• Package filtering;

• Connection reset.

Bypass

How to bypass GFW

• Proxy server located outside of China;

• Auto-proxy software and onion routing, such as FreeGate;

• APIs;

• SSH tunnel;

• VPN.

Conclusion

Conclusion

• China has strict regulations on the Internet;

• We always have a way;

• Desire for freedom is irresistible.

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

Q & A