Frame this document as a source-led configuration and assurance check: Reserve special-use names only after evaluating every affected software role. Only the official source and traced locations below supply facts. Confirm applicability before acting.
\nThe official RFC 6761 — Special-Use Domain Names from RFC Editor / Internet Engineering Task Force supports the following bounded statements:
\nKeep the evidence boundary at these traced claims. They support a review of authoritative zones, delegations, resolvers, caches, record owners, and the clients that consume the resulting answers; they do not support conclusions outside the source’s stated conditions.
\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. Anchor the review in the cited section and keep observation separate from interpretation. 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.
\nAn implementation decision needs an owner, approved window, prechecks, observable outcome, stop authority, and rollback path. Validate Windows DNS roles, Active Directory-integrated data, forwarding paths, time, routing, firewalls, and registrar or registry state before and after the test, and store only sanitized operational evidence.
\nKeep the source locations Section 4 (Procedure); Section 5 (Domain Name Reservation Considerations); Section 4 (Procedure), seven-category test adjacent to the sanitized artifacts used for comparison. Prefer zone data, packet captures, query transcripts, delegation checks, resolver configuration, and negative-answer behavior, with enough identity and timing data for an independent recheck.
\nKeep before-state evidence, approval, test or change result, exceptions, and after-state evidence together. Use an approved lab, window, or nonproduction path for risky tests. Set a recheck trigger for version, architecture, dependency, vendor, incident, or ownership change. A check proves only what was observed.
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