Re: [DNSOP] RFC 1035 vs. mandatory NS at apex?

Marius Olafsson <> Thu, 07 February 2019 16:05 UTC

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Date: Thu, 7 Feb 2019 16:05:11 +0000
From: Marius Olafsson <>
To: Ted Lemon <>
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Subject: Re: [DNSOP] RFC 1035 vs. mandatory NS at apex?
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> I hate to say it, but we should really make sure that this is actually stated somewhere where it can reasonably be found.   If it is not, we should state it.   Petr was completely sensible to think it was the case but not be sure.   Saying that it is the case, and why it is the case, would be helpful.   This is something that I hadn???t really thought through before Petr asked the question, but I???d been wondering about it too because the question comes up in the DNSSD Discovery Proxy code I???m working on (I assumed the answer was yes).

How about RFC2181 section 6.1

"The authoritative servers for a zone are enumerated in the NS records
   for the origin of the zone, which, along with a Start of Authority
   (SOA) record are the mandatory records in every zone."

Marius Olafsson
University of Iceland