My Profile Photo

Sheogorath's Blog

Depending on the time of the day a friend, a colleague, a wise guy. The beauty of the world is its sense of humor to show humans their way by letting them search their own.

Cover image for this blog post

Adaptive DNS discovery

Today I learned about Adaptive DNS Discovery, short ADD, which is an upcoming DNS standard to discover and configure DoH and DoT clients. The idea is that the client learns about a local DoH or DoT server either by Router Advertisement (PvD), well-known entry, an HTTPSSVC or SVCB DNS entry, or a regular alt-svc header for HTTPS.

I learned about this thanks to the webinar by Carsten Strotmann about “Encrypted DNS” in 2020. I also had a follow-up discussion with him about certain aspects that resulted out of the talk on Mastodon.