DNS Privacy, Authorization, Special Uses, Encoding, Characters, Matching, and Root Structure: Time for Another Look?
RFC 8324
| Document | Type |
RFC - Informational
(February 2018; Errata)
Was draft-klensin-dns-function-considerations (individual)
|
|
|---|---|---|---|
| Last updated | 2018-03-01 | ||
| Stream | ISE | ||
| Formats | plain text pdf html bibtex | ||
| IETF conflict review | conflict-review-klensin-dns-function-considerations | ||
| Stream | ISE state | Published RFC | |
| Consensus Boilerplate | Unknown | ||
| Document shepherd | Nevil Brownlee | ||
| Shepherd write-up | Show (last changed 2017-10-29) | ||
| IESG | IESG state | RFC 8324 (Informational) | |
| Telechat date | |||
| Responsible AD | (None) | ||
| Send notices to | Nevil Brownlee <n.brownlee@auckland.ac.nz> | ||
| IANA | IANA review state | Version Changed - Review Needed | |
| IANA action state | No IANA Actions | ||
Independent Submission J. Klensin
Request for Comments: 8324 February 2018
Category: Informational
ISSN: 2070-1721
DNS Privacy, Authorization, Special Uses, Encoding, Characters,
Matching, and Root Structure: Time for Another Look?
Abstract
The basic design of the Domain Name System was completed almost 30
years ago. The last half of that period has been characterized by
significant changes in requirements and expectations, some of which
either require changes to how the DNS is used or can be accommodated
only poorly or not at all. This document asks the question of
whether it is time to either redesign and replace the DNS to match
contemporary requirements and expectations (rather than continuing to
try to design and implement incremental patches that are not fully
satisfactory) or draw some clear lines about functionality that is
not really needed or that should be performed in some other way.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
This is a contribution to the RFC Series, independently of any other
RFC stream. The RFC Editor has chosen to publish this document at
its discretion and makes no statement about its value for
implementation or deployment. Documents approved for publication by
the RFC Editor are not candidates for any level of Internet Standard;
see 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
https://www.rfc-editor.org/info/rfc8324.
Klensin Informational [Page 1]
RFC 8324 DNS Revisions February 2018
Copyright Notice
Copyright (c) 2018 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document.
Klensin Informational [Page 2]
RFC 8324 DNS Revisions February 2018
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Background and Hypothesis . . . . . . . . . . . . . . . . . . 5
3. Warts and Tensions with the Current DNS . . . . . . . . . . . 6
3.1. Multi-type Queries . . . . . . . . . . . . . . . . . . . 6
3.2. Matching Part I: Case Sensitivity in Labels and Other
Anomalies . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3. Matching Part II: Non-ASCII ("Internationalized") Domain
Name Labels . . . . . . . . . . . . . . . . . . . . . . . 7
3.4. Matching Part III: Label Synonyms, Equivalent Names, and
Variants . . . . . . . . . . . . . . . . . . . . . . . . 8
3.5. Query Privacy . . . . . . . . . . . . . . . . . . . . . . 10
3.6. Alternate Namespaces for Public Use in the DNS Framework:
The CLASS Problem . . . . . . . . . . . . . . . . . . . . 10
3.7. Loose Synchronization . . . . . . . . . . . . . . . . . . 10
3.8. Private Namespaces and Special Names . . . . . . . . . . 11
3.9. Alternate Query or Response Encodings . . . . . . . . . . 12
3.10. Distribution and Management of Root Servers . . . . . . . 12
3.11. Identifiers versus Brands and Other Convenience Names . . 13
3.12. A Single Hierarchy with a Centrally Controlled Root . . . 14
3.13. Newer Application Protocols, New Requirements, and DNS
Evolution . . . . . . . . . . . . . . . . . . . . . . . . 14
3.13.1. The Extensions . . . . . . . . . . . . . . . . . . . 15
3.13.2. Extensions and Deployment Pressures -- The TXT
RRTYPE . . . . . . . . . . . . . . . . . . . . . . . 15
3.13.3. Periods and Zone Cut Issues . . . . . . . . . . . . 16
3.14. Scaling of Reputation and Other Ancillary Information . . 17
3.15. Tensions among Transport, Scaling, and Content . . . . . 18
4. The Inverse Lookup Requirement . . . . . . . . . . . . . . . 19
5. Internet Scale, Function Support, and Incremental Deployment 20
6. Searching and the DNS -- An Historical Note . . . . . . . . . 20
7. Security Considerations . . . . . . . . . . . . . . . . . . . 21
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 22
8.1. Normative References . . . . . . . . . . . . . . . . . . 22
8.2. Informative References . . . . . . . . . . . . . . . . . 22
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 29
Show full document text