The ALT Special Use Top Level Domain
draft-ietf-dnsop-alt-tld-03

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Document Type Active Internet-Draft (dnsop WG)
Last updated 2015-09-30
Replaces draft-wkumari-dnsop-alt-tld
Stream IETF
Intended RFC status Informational
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dnsop                                                          W. Kumari
Internet-Draft                                                    Google
Intended status: Informational                               A. Sullivan
Expires: April 2, 2016                                               Dyn
                                                      September 30, 2015

                  The ALT Special Use Top Level Domain
                      draft-ietf-dnsop-alt-tld-03

Abstract

   This document reserves a string (ALT) to be used as a TLD label in
   non-DNS contexts or for names that have no meaning in a global
   context.  It also provides advice and guidance to developers
   developing alternate namespaces.

   [ Ed note: This document lives in GitHub at:
   https://github.com/wkumari/draft-wkumari-dnsop-alt-tld . Issues and
   pull requests happily accepted. ]

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   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."

   This Internet-Draft will expire on April 2, 2016.

Copyright Notice

   Copyright (c) 2015 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
   (http://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

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   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements notation . . . . . . . . . . . . . . . . . .   2
     1.2.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Background  . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  The ALT namespace . . . . . . . . . . . . . . . . . . . . . .   4
     3.1.  Choice of the ALT Name  . . . . . . . . . . . . . . . . .   5
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
     4.1.  Domain Name Reservation Considerations  . . . . . . . . .   6
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   7
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   7
   7.  Normative References  . . . . . . . . . . . . . . . . . . . .   8
   Appendix A.  Changes / Author Notes.  . . . . . . . . . . . . . .   8
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  10

1.  Introduction

   Many protocols and systems need to name entities.  Names that look
   like DNS names (a series of labels separated with dots) have become
   common, even in systems that are not part of the global DNS
   administered by IANA.

   This document provides a solution that may be more appropriate than
   [RFC6761] in many cases.

   This document reserves the label "ALT" (short for "Alternate") as a
   Special Use Domain ([RFC6761]).  This label is intended to be used as
   the final label to signify that the name is not rooted in the DNS,
   and that normal registration and lookup rules do not apply.

1.1.  Requirements notation

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in [RFC2119].

1.2.  Terminology

   This document assumes familiarity with DNS terms and concepts.
   Please see [RFC1034] for background and concepts, and
   [I-D.ietf-dnsop-dns-terminology] for terminology.

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   o  DNS name: Domain names that are intended to be used with DNS
      resolution, either in the global DNS or in some other context

   o  DNS context: The namespace anchored at the globally-unique DNS
      root.  This is the namespace or context that "normal" DNS uses.

   o  non-DNS context: Any other (alternate) namespace.

   o  pseudo-TLD: A label that appears in a fully-qualified domain name
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