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GFW

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2010年给同事做的presentation

2010年给同事做的presentation

Published in: Technology

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  • 规模与处理能力 GFW (北京)拥有 13 套曙光 4000L 用于骨干网络过滤。总计 6144 节点, 12288CPU , 12288GB 内存,峰值计算速度 48 万亿次,吞吐量 512Gbps
  • Transcript

    • 1. 2010-5
    • 2.  下面将要展示的内容均来自公开资料 绝无泄露国家机密 谢绝跨省追捕
    • 3.  Detection  Stream reconstruction  Keyword pattern matching
    • 4.  Blocking  IP blocking ▪ Route hijack  DNS poisoning  Connection reset
    • 5.  Deployment
    • 6.  Anti- IP blocking  Proxy  Tunneling
    • 7.  Anti- DNS poisoning  Set hostname-IP mapping in hosts file  DNS client filters out spurious responses  Remote DNS lookup  DNSSEC
    • 8.  Anti- Keyword detection  Secure transfer ▪ HTTPS ▪ Secure tunneling
    • 9.  Tunneling  SSH tunnel  VPN  TOR
    • 10.  Active anti-GFW  西厢计划