[GH-ISSUE #395] mDNS needs an active DNS listener #179

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opened 2026-03-07 22:40:41 +03:00 by kerem · 1 comment
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Originally created by @bluejekyll on GitHub (Apr 11, 2018).
Original GitHub issue: https://github.com/hickory-dns/hickory-dns/issues/395

I just noticed a bug rereading the RFC: https://tools.ietf.org/html/rfc6762#section-19

* ignores the Query ID field (except for generating legacy responses), I definitely look for the query_id on all responses still.

Originally created by @bluejekyll on GitHub (Apr 11, 2018). Original GitHub issue: https://github.com/hickory-dns/hickory-dns/issues/395 I just noticed a bug rereading the RFC: https://tools.ietf.org/html/rfc6762#section-19 `* ignores the Query ID field (except for generating legacy responses)`, I definitely look for the query_id on all responses still.
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@bluejekyll commented on GitHub (Apr 24, 2018):

This will require more significant changes, such as an active mDNS listener updating cache. The cache will then need some way to notify a query listener of the updates received in the listener.

For now, we'll use the fallback query mechanism in mDNS to respond as a class UDP request.

<!-- gh-comment-id:383811118 --> @bluejekyll commented on GitHub (Apr 24, 2018): This will require more significant changes, such as an active mDNS listener updating cache. The cache will then need some way to notify a query listener of the updates received in the listener. For now, we'll use the fallback query mechanism in mDNS to respond as a class UDP request.
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starred/hickory-dns#179
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