RFC 8020
NXDOMAIN: There Really Is Nothing Underneath, November 2016
- File formats:
- Status:
- PROPOSED STANDARD
- Updates:
- RFC 1034, RFC 2308
- Authors:
- S. Bortzmeyer
S. Huque - Stream:
- IETF
- Source:
- dnsop (ops)
Cite this RFC: TXT | XML | BibTeX
DOI: https://doi.org/10.17487/RFC8020
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Abstract
This document states clearly that when a DNS resolver receives a response with a response code of NXDOMAIN, it means that the domain name which is thus denied AND ALL THE NAMES UNDER IT do not exist.
This document clarifies RFC 1034 and modifies a portion of RFC 2308: it updates both of them.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 8729.