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# GitHub 关于基于 Memcached 的 DDoS 攻击的报告
- **期号**: SRE Weekly Issue #112(2018-03-04)
- **作者**: Sam Kottler — GitHub
- **链接**: https://githubengineering.com/ddos-incident-report/
## 简介
本周的大新闻是 memcached UDP 放大型 DDoS 手法——攻击者正是用它向我们的朋友 GitHub 发起了高达 1.3 Tbps(!)的流量。他们的说明见上方链接。
网上相关的讨论也闹翻了天:[Cloudflare 对这次攻击的描述](https://blog.cloudflare.com/memcrashed-major-amplification-attacks-from-port-11211/)、[Akamai 讲述自己如何帮 GitHub 扛过攻击](https://blogs.akamai.com/2018/03/memcached-fueled-13-tbps-attacks.html)、memcached 开发者[宣布](https://twitter.com/dormando/status/968570723521277953)发布默认禁用 UDP 的版本、还有[评论](https://twitter.com/dormando/status/968540354692636672),Charity Majors 也写了些[有趣的评论](https://twitter.com/mipsytipsy/status/969443770532900866)、以及 [Wired 对 GitHub 遭攻击的报道](https://www.wired.com/story/github-ddos-memcached/)。
## 正文
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