Use this document to connect an official requirement or behavior to observable evidence: Serve stale DNS data only inside explicit freshness and failure limits. Only the official source and traced locations below supply facts. Confirm applicability before acting.
\nThe official RFC 8767 — Serving Stale Data to Improve DNS Resiliency from RFC Editor / Internet Engineering Task Force supports the following bounded statements:
\nThe source support ends with the statements listed above. Use them to examine authoritative zones, delegations, resolvers, caches, record owners, and the clients that consume the resulting answers in the applicable environment, not to imply a wider guarantee.
\nThis RFC evidence supports only the named DNS protocol decision; it does not prove Windows implementation support or a safe production configuration. No current deployment state or change approval follows from the source alone. Validate Windows DNS roles, Active Directory-integrated data, forwarding paths, time, routing, firewalls, and registrar or registry state, and treat examples or options as conditional inputs rather than defaults.
\nDSE recommends using the cited source as the evidence anchor for this decision. Make the source, asset scope, owner, and expected outcome explicit in the review record. Record the source location, examined part of authoritative zones, delegations, resolvers, caches, record owners, and the clients that consume the resulting answers, observed and expected states, owner, and reason for deviation.
\nDo not move from citation to production in one step. Pilot the decision where practical, observe agreed signals, retain a reversal point, and verify Windows DNS roles, Active Directory-integrated data, forwarding paths, time, routing, firewalls, and registrar or registry state. Handle credentials, keys, recovery data, and personal information through approved secure channels.
\nA reviewer should be able to retrace the decision from Section 4 (Standards Action), amended TTL definition; Section 4 (Standards Action), stale-response TTL; Section 5 (Example Method) through zone data, packet captures, query transcripts, delegation checks, resolver configuration, and negative-answer behavior. Record what was collected, where, when, by whom, and which system or role it represents.
\nPreserve both successful and failed observations, along with approval and rollback evidence. Avoid uncontrolled production experiments. Assign an expiry or event-driven recheck so the conclusion is not treated as permanent.
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