Protecting the DNS Root servers against DDoS attacks

Protecting the DNS Root servers against DDoS attacks

สวัสดีที่รัก, you might know there are 13 root DNS server (okay, actually server clusters with anycast routing, but let’s assume there are actually 13 physical servers). These serve as the backbone of the modern internet…

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How Cloudflare works…maybe

Using Cloudflare myself for my blog and my overall interest in DDoS protection draw me to this weeks paper. It discusses a design of an overlay network for DDoS protection. Quite interesting to learn about the considerations coming into play. Sure Cloudflare, Akamai, Google etc. evolved since then, but this paper gives quite nice fundamentals on how to design such a protection. Especially the computation powered puzzles is a nice concept (was programming one on the weekend actually)….most like Bitcoins proof of work 😉