I published the following diary on isc.sans.edu: “My Little DoH Setup“:
“DoH”, this 3-letters acronym is a buzzword on the Internet in 2019! It has been implemented in Firefox, Microsoft announced that Windows will support it soon. They are pro & con about encrypting DNS requests in  HTTPS but it’s not the goal of this diary to restart the debate. In a previous diary, he explained how to prevent DoH to be used by Firefox but, this time, I’ll play on the other side and explain to you how to implement it in a way to keep control of your DNS traffic (read: how to keep an eye on DNS request performed by users and systems)… [Read more]