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Obsoleting IQUERY

The information below is for an old version of the document that is already published as an RFC.
Document Type
This is an older version of an Internet-Draft that was ultimately published as RFC 3425.
Author David C Lawrence
Last updated 2015-10-14 (Latest revision 2002-07-23)
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status Proposed Standard
Additional resources Mailing list discussion
Stream WG state (None)
Document shepherd (None)
IESG IESG state Became RFC 3425 (Proposed Standard)
Action Holders
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD Erik Nordmark
IESG note
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A new Request for Comments is now available in online RFC libraries.

        RFC 3425
        Title:      Obsoleting IQUERY
        Author(s):  D. Lawrence
        Status:     Standards Track
        Date:       November 2002
        Pages:      5
        Characters: 8615
        Updates:    1035

        I-D Tag:    draft-ietf-dnsext-obsolete-iquery-04.txt


The IQUERY method of performing inverse DNS lookups, specified in
RFC 1035, has not been generally implemented and has usually been
operationally disabled where it has been implemented.  Both reflect
a general view in the community that the concept was unwise and
that the widely-used alternate approach of using pointer (PTR) queries
and reverse-mapping records is preferable.  Consequently, this
document deprecates the IQUERY operation, declaring it entirely
obsolete.  This document updates RFC 1035.

This document is a product of the DNS Extensions Working Group of the

This is now a Proposed Standard Protocol.

This document specifies an Internet standards track protocol for
the Internet community, and requests discussion and suggestions
for improvements.  Please refer to the current edition of the
"Internet Official Protocol Standards" (STD 1) for the
standardization state and status of this protocol.  Distribution
of this memo is unlimited.

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