[dns-operations] DNS zone without an SOA or NS records

Geoffrey Sisson geoff at dns-oarc.net
Wed Jul 20 19:23:26 UTC 2011

Jan-Piet Mens <jpmens.dns at gmail.com> wrote:

> I don't think NS records are required, but I'd have thought an SOA
> record would be. RFC 1035, section 5.2 says "should" but not "must":
>         "Exactly one SOA RR should be present at the top of the zone."

RFC 2181 clarifies this as a mandatory requirement:

6.1. Zone authority

   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.


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