Introduction
Lately, we can spot quite a lot of reports, claiming that Google (8.8.8.8) and Cloudflare (1.1.1.1) DNS servers are under DoS attacks. For instance, @GossiTheDog has provided the info that he noticed attack destined for 1.1.1.1 in Qihoo 360 feeds. Then, @yiminggong from 360 Netl...