rfc-2308

Negative Caching of DNS Queries (DNS NCACHE)

M. Andrews

date1998-03 streamIETF areaint wgdnsind statusPROPOSED STANDARD pages19 canonicalhttps://www.rfc-editor.org/rfc/rfc2308 doi10.17487/RFC2308 errataview

RFC1034 provided a description of how to cache negative responses. It however had a fundamental flaw in that it did not allow a name server to hand out those cached responses to other resolvers, thereby greatly reducing the effect of the caching. This document addresses issues raise in the light of experience and replaces RFC1034 Section 4.3.4. [STANDARDS-TRACK]

updated by

rfc-4033 — DNS Security Introduction and Requirements
rfc-4034 — Resource Records for the DNS Security Extensions
rfc-4035 — Protocol Modifications for the DNS Security Extensions
rfc-6604 — xNAME RCODE and Status Bits Clarification
rfc-8020 — NXDOMAIN: There Really Is Nothing Underneath
rfc-8499 — DNS Terminology
rfc-9499 — DNS Terminology
rfc-9520 — Negative Caching of DNS Resolution Failures

updates

rfc-1034 — Domain names - concepts and facilities
rfc-1035 — Domain names - implementation and specification