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 . 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. Josefsson Expires July 24, 2001 [Page 1] Internet-Draft MIME Registration of DNS data January 2001 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 Josefsson Expires July 24, 2001 [Page 2] Internet-Draft MIME Registration of DNS data January 2001 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? Josefsson Expires July 24, 2001 [Page 3] Internet-Draft MIME Registration of DNS data January 2001 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 Josefsson Expires July 24, 2001 [Page 4] Internet-Draft MIME Registration of DNS data January 2001 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 Josefsson Expires July 24, 2001 [Page 5] Internet-Draft MIME Registration of DNS data January 2001 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„gen 29 Stockholm 121 29 Sweden Phone: +46 8 7250914 EMail: sjosefsson@rsasecurity.com Josefsson Expires July 24, 2001 [Page 6] Internet-Draft MIME Registration of DNS data January 2001 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 copyrights defined in the Internet Standards process must be 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. Josefsson Expires July 24, 2001 [Page 7]