[DNSOP] I-D Action: draft-ietf-dnsop-ns-revalidation-05.txt

internet-drafts@ietf.org Mon, 04 March 2024 22:09 UTC

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Date: Mon, 04 Mar 2024 14:09:53 -0800
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Subject: [DNSOP] I-D Action: draft-ietf-dnsop-ns-revalidation-05.txt

Internet-Draft draft-ietf-dnsop-ns-revalidation-05.txt is now available. It is
a work item of the Domain Name System Operations (DNSOP) WG of the IETF.

   Title:   Delegation Revalidation by DNS Resolvers
   Authors: Shumon Huque
            Paul Vixie
            Willem Toorop
   Name:    draft-ietf-dnsop-ns-revalidation-05.txt
   Pages:   9
   Dates:   2024-03-04

Abstract:

   This document recommends improved DNS [RFC1034] [RFC1035] resolver
   behavior with respect to the processing of Name Server (NS) resource
   record sets (RRset) during iterative resolution.  When following a
   referral response from an authoritative server to a child zone, DNS
   resolvers should explicitly query the authoritative NS RRset at the
   apex of the child zone and cache this in preference to the NS RRset
   on the parent side of the zone cut.  The (A and AAAA) address RRsets
   in the additional section from referral responses and authoritative
   NS answers for the names of the NS RRset, should similarly be
   requeried and used to replace the entries with the lower
   trustworthiness ranking in cache.  Resolvers should also periodically
   revalidate the child delegation by re-quering the parent zone at the
   expiration of the TTL of the parent side NS RRset.

The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-dnsop-ns-revalidation/

There is also an HTMLized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-dnsop-ns-revalidation-05

A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-ietf-dnsop-ns-revalidation-05

Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts

[DNSOP] I-D Action: draft-ietf-dnsop-ns-revalidat… internet-drafts