Establishing Local DNS Authority in Validated Split-Horizon Environments
RFC 9704, “Establishing Local DNS Authority in Validated Split-Horizon Environments”, is a Proposed Standard document published in January 2025 by T. Reddy.K, D. Wing, K. Smith, B. Schwartz. The canonical text is published by the RFC Editor.
Abstract
When split-horizon DNS is deployed by a network, certain domain names can be resolved authoritatively by a network-provided DNS resolver. DNS clients that are not configured to use this resolver by default can use it for these specific domains only. This specification defines a mechanism for domain owners to inform DNS clients about local resolvers that are authorized to answer authoritatively for certain subdomains.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 9704 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
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