« It is well-known, for many years, that the chinese governement censors the Internet via several means, including DNS lies. For a long time, these DNS lies have been generated by the netwok itself: when a DNS query for a censored name is seen, an active censorship device generates a lie and sends a reply with the wrong IP address. A few weeks ago, there have been a change in this system: the IP addresses returned by the Great FireWall are more often actual addresses used by real machines, which suddently have to sustain a big traffic from China. »

Très bonne analyse. Autre ressource sur ce sujet : https://benjamin.sonntag.fr/DDOS-sur-La-Quadrature-du-Net-analyse