RFC 7129 on Authenticated Denial of Existence in the DNS

rfc-editor@rfc-editor.org Thu, 13 February 2014 04:49 UTC

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Subject: RFC 7129 on Authenticated Denial of Existence in the DNS
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Date: Wed, 12 Feb 2014 20:49:21 -0800
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A new Request for Comments is now available in online RFC libraries.

        
        RFC 7129

        Title:      Authenticated Denial of Existence in the DNS 
        Author:     R. Gieben, W. Mekking
        Status:     Informational
        Stream:     Independent
        Date:       February 2014
        Mailbox:    miek@google.com, 
                    matthijs@nlnetlabs.nl
        Pages:      30
        Characters: 62936
        Updates/Obsoletes/SeeAlso:   None

        I-D Tag:    draft-gieben-auth-denial-of-existence-dns-05.txt

        URL:        http://www.rfc-editor.org/rfc/rfc7129.txt

Authenticated denial of existence allows a resolver to validate that
a certain domain name does not exist.  It is also used to signal that
a domain name exists but does not have the specific resource record
(RR) type you were asking for.  When returning a negative DNS
Security Extensions (DNSSEC) response, a name server usually includes
up to two NSEC records.  With NSEC version 3 (NSEC3), this amount is
three.

This document provides additional background commentary and some
context for the NSEC and NSEC3 mechanisms used by DNSSEC to provide
authenticated denial-of-existence responses.


INFORMATIONAL: This memo provides information for the Internet community.
It does not specify an Internet standard of any kind. Distribution of
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