DNS Meta-Queries resticted.

Document Type Replaced Internet-Draft (individual)
Last updated 2015-09-10 (latest revision 2015-03-09)
Replaced by draft-jabley-dnsop-refuse-any
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Expired & archived
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IESG IESG state Replaced by draft-jabley-dnsop-refuse-any
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Some DNS types have special meaning and are classified as meta queries, this includes ANY, AXFR, IXFR. These queries frequently return larger answers than queries for other types. This document defines a standard way for Authoritative-Only servers how to refuse to serve these and other similar queries, with the expectation that resolvers honor that, by not asking followup queries.


Ólafur Guðmundsson (olafur@cloudflare.com)
Marek Majkowski (marek@cloudflare.com)
Joe Abley (jabley@dyn.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)