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It does not work in this case, rogue states like China are using national backbone internet as DDoS tool.

You can find research papers back in 2001 about GFW. The DNS spoofing "service" can be easily used as a x3 amplification tool by anyone.

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The implication in the article seems to be it's a GET/POST flood though, not DNS-based. Granted, for DNS amplification, having big enough pipes starts to matter a lot more, which is where providers like OVH shine because of how much network capacity they have, but it's not like DNS traffic can't be filtered. I haven't read the research papers you're referring to though, so I may be overlooking something obvious.

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