RFC 8020 - NXDOMAIN: There Really Is Nothing Underneath

RFC	8020
Title	NXDOMAIN: There Really Is Nothing Underneath
Authors	S. Bortzmeyer, S. Huque
Status	Standards Track
Updates	RFC1034, RFC2308
Created	November 2016

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.

Status of This Memo

This is an Internet Standards Track document.

This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 7841.

Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc8020.

Copyright Notice

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