[dns-operations] All NSs for a TLD being in the TLD itself

[Jim Reid]

On 29 Oct 2013, at 09:24, Calvin Browne <calvin at orange-tree.alt.za> wrote:

> I'm going to point out that .se went down because of a problem right at this point relativly recently.

IIRC, that problem had nothing to do with whether the TLD's NS RRset was in the zone or not. Something went wrong with zone file generation and that RRset got corrupted somehow. [When the authoritative NS RRset gets mangled, it doesn't matter if the targets of those NS records are inside or outside the zone.] Things still worked (sort of). The delegation info at the root was unchanged and valid. Resolvers got referrals to the authoritative .se name servers even though those servers might not have had NS records in the .se zone itself.