Quad9 block events: Does AdGuard Home look at RA bits?

[johnhtodd]

Does AdGuard Home log NXDOMAIN events from Quad9 to indicate if they're "natural" versus "block" events? Quad9 marks blocked items with the "RA - Recursion Available" bit set to 0 if the block came from a blocklist.

I probably should just set up AdGuard Home again on a VM, but I'm sort of under water right now with other things and figured this was a low-effort answer for someone. If the answer is "No" then we (Quad9) are very happy to help with testing on any patches that might be submitted.

[0xpsyduck]

Answer is No, AdGuard Home doesnt show upstream block events as far as WebUI is concerned.
Response Code is shown as NXDOMAIN if Quad9 is blocking some domain.

Would love to have this functionality in AGH.

[johnhtodd]

Quad9 would sponsor the visibility of our blocking results (RA=0) being made available in the standard AGH user interface if someone were to code it. Is there a "feature bounty" queue somewhere? We'd put CHF200 (~US$250) towards this if anyone could complete it. Another CHF50 if you can pre-build some EDE (RFC8914) logic into the code for more advanced notifications. Normally we'd try to submit the code ourselves, but everyone in our tiny organization who does code right now is 100% full with other work, so happy to outsource to the community if that is viable.

[ainar-g]

Hello! We are planning on implementing EDE support in AGH sometime in the future, and we already have some support for it in AdGuard DNS. Quad9 might be interested in implementing that as well.

As of now, we do not plan to support non-standard ways to recognize blocked requests.

[johnhtodd]

Great - that's good news. Quad9 already supports EDE, and we'll be adding blocklist items into the EDE tag set shortly as type 17 (and possibly others.)