[dns-operations] Rise in .LV bogus delegations

Viktor Dukhovni ietf-dane at dukhovni.org
Thu Mar 7 17:54:34 UTC 2019


The DNSSEC delegation by TLD breakdown table (updated daily)

    http://stats.dnssec-tools.org/#tldbreakdown

today (for the first time) shows .LV as the TLD with the highest
rate of subdomain DNSKEY resolution failure.

Of the 378 problem domains, 334 are handled by:

     234 ns[12].items.lv.
     100 ns[123].areait.lv.

The 100 ns[123].areait.lv domains are simple cases of the nameservers
returning "REFUSED" for these domains, for example:

    http://dnsviz.net/d/5x5.lv/dnssec/
    http://dnsviz.net/d/plantatree.lv/dnssec/
    http://dnsviz.net/d/pre.lv/dnssec/

The 234 ns[12].items.lv domains are cases where despite the DS RRset
in the parent .LV zone there is no DNSKEY RRset at the zone apex,
for example:

    http://dnsviz.net/d/42.lv/dnssec/
    http://dnsviz.net/d/cargo24.lv/dnssec/
    http://dnsviz.net/d/runas.lv/dnssec/

Plausibly a recent change in DNS hosting providers, with the DS
records left in place, but no arrangement for key continuity.

-- 
	Viktor.



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