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Versions: 00 01 02 RFC 4027

Network Working Group                                       S. Josefsson
Internet-Draft                                              RSA Security
Expires: July 24, 2001                                  January 23, 2001


             DNS Information MIME Media Type Registrations
                      draft-josefsson-mime-dns-01

Status of this Memo

   This document is an Internet-Draft and is in full conformance with
   all provisions of Section 10 of RFC2026.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF), its areas, and its working groups. Note that
   other groups may also distribute working documents as
   Internet-Drafts.

   Internet-Drafts are draft documents valid for a maximum of six
   months and may be updated, replaced, or obsoleted by other documents
   at any time. It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   The list of current Internet-Drafts can be accessed at
   http://www.ietf.org/ietf/1id-abstracts.txt.

   The list of Internet-Draft Shadow Directories can be accessed at
   http://www.ietf.org/shadow.html.

   This Internet-Draft will expire on July 24, 2001.

   Distribution of this document is unlimited.  Please send comments to
   the DNS list at <dns@josefsson.org>.

Copyright Notice

   Copyright (C) The Internet Society (2001). All Rights Reserved.

Abstract

   This draft describe the registration of MIME media types
   application/dns and text/dns.  They are used to identify data on the
   detached DNS format described in RFC 2540 [5], and zone text data as
   described in RFC 1035 [2], respectively.








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Table of Contents

   1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 3
   2. Open Issues  . . . . . . . . . . . . . . . . . . . . . . . . . . 3
   3. MIME type registration of application/dns  . . . . . . . . . . . 4
   4. MIME type registration of text/dns . . . . . . . . . . . . . . . 5
      References . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
      Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 6
      Full Copyright Statement . . . . . . . . . . . . . . . . . . . . 7










































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1. Introduction

   DNS [1][2] is a widely deployed protocol used to, among other
   things, translate domain names into IP addresses.

   DNS information are usually stored in text files, so called "zone
   files".  The format is described in RFC 1035 [2].

   DNS data can also be stored in a format described in RFC 2540 [5].
   It's intended to be used when archiving DNS data (the format add
   timestamps to DNS data).

   This document describe the registration of a MIME type for these two
   formats.

2. Open Issues

   [[[The issues discussed in this section should be resolved, as this
   document matures.  Remove the section when no further issues
   exist.]]]

   Issues with the text/dns format:

   . need to forbid $INCLUDE?

   . does it have to be complete zone files?

   . need to do anything if no TTL and no SOA?

   . zone transfer format?

   . MIME parameter to replace $ORIGIN?



















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3. MIME type registration of application/dns

   To: ietf-types@iana.org
   Subject: Registration of MIME media type application/dns

   MIME media type name: application

   MIME subtype name: dns

   Required parameters: none

   Optional parameters: none

   Encoding considerations: 7bit, 8bit or binary

   Security considerations: This definition only identifies the content
   as being detached DNS information, as documented in RFC 2540 [5].
   This data may be security relevant according to RFC 2538 [4], or
   secured information according to RFC 2535 [3].

   Interoperability considerations: none

   Published specification: the format of data that could be tagged
   with this MIME type is documented in RFC 2540 [5].

   Applications which use this media type: DNS related software,
   including software storing and using certificates stored in DNS.

   Additional information:

     Magic number(s): none
     File extension(s): none
     Macintosh File Type Code(s): unknown

   Person & email address to contact for further information:

   Simon Josefsson sjosefsson@rsasecurity.com

   Intended usage: COMMON

   Author/Change controller: unknown










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4. MIME type registration of text/dns

   To: ietf-types@iana.org
   Subject: Registration of MIME media type text/dns

   MIME media type name: text

   MIME subtype name: dns

   Required parameters: none

   Optional parameters: none

   Encoding considerations: 7bit, 8bit or binary

   Security considerations: This definition only identifies the content
   as being DNS information in "zone file" format, as documented in RFC
   1035 [2].  The DNS data may be security relevant according to RFC
   2538 [4], or secured information according to RFC 2535 [3].

   Interoperability considerations: none

   Published specification: the format of data that could be tagged
   with this MIME type is documented in RFC 1035 [2].

   Applications which use this media type: DNS related software.

   Additional information:

     Magic number(s): none
     File extension(s): none
     Macintosh File Type Code(s): unknown

   Person & email address to contact for further information:

   Simon Josefsson sjosefsson@rsasecurity.com

   Intended usage: COMMON

   Author/Change controller: unknown











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Acknowledgement

   Thanks to D. Eastlake for suggesting text/dns.

References

   [1]  Mockapetris, P., "Domain Names - Concepts and Facilities", RFC
        1034, November 1987.

   [2]  Mockapetris, P., "Domain Names - Implementation and
        Specification", RFC 1035, November 1987.

   [3]  Eastlake, D., "Domain Name System Security Extensions", RFC
        2535, March 1999.

   [4]  Eastlake, D. and O. Gudmundsson, "Storing Certificates in the
        Domain Name System (DNS)", RFC 2538, March 1999.

   [5]  Eastlake, D., "Detached Domain Name System (DNS) Information",
        RFC 2540, March 1999.


Author's Address

   Simon Josefsson
   RSA Security
   Arenav¬Ągen 29
   Stockholm  121 29
   Sweden

   Phone: +46 8 7250914
   EMail: sjosefsson@rsasecurity.com



















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Full Copyright Statement

   Copyright (C) The Internet Society (2001). All Rights Reserved.

   This document and translations of it may be copied and furnished to
   others, and derivative works that comment on or otherwise explain it
   or assist in its implementation may be prepared, copied, published
   and distributed, in whole or in part, without restriction of any
   kind, provided that the above copyright notice and this paragraph
   are included on all such copies and derivative works. However, this
   document itself may not be modified in any way, such as by removing
   the copyright notice or references to the Internet Society or other
   Internet organizations, except as needed for the purpose of
   developing Internet standards in which case the procedures for
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   followed, or as required to translate it into languages other than
   English.

   The limited permissions granted above are perpetual and will not be
   revoked by the Internet Society or its successors or assigns.

   This document and the information contained herein is provided on an
   "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
   TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
   BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
   HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
























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