[dns-operations] solutions for DDoS mitigation of DNS

[Stephane Bortzmeyer]

On Thu, Apr 02, 2020 at 10:14:14AM +0800,
 Tessa Plum <tessa at plum.ovh> wrote 
 a message of 14 lines which said:

> May I ask if there are any solutions for DDoS mitigation of DNS?

All solutions that were mentioned here are correct but incomplete:
there is no general solution against dDoS, because "it depends". There
are many types of dDoS. You will need several tools in your toolbox,
and someone knowledgeable to choose among them.