Special Use Top Level Domain 'home'
draft-cheshire-homenet-dot-home-04

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Network Working Group                                        S. Cheshire
Internet-Draft                                                Apple Inc.
Intended status: Standards Track                          March 13, 2017
Expires: September 14, 2017

                  Special Use Top Level Domain 'home'
                   draft-cheshire-homenet-dot-home-04

Abstract

   This document specifies usage of the top-level domain ".home", for
   names that are meaningful and resolvable within some scope smaller
   than the entire global Internet, but larger than the single link
   supported by Multicast DNS.

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

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   This Internet-Draft will expire on September 14, 2017.

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Internet-Draft                  Dot Home                      March 2017

1.  Introduction

   Globally unique domain names are available to individuals and
   organizations for a modest annual fee.  However, there are situations
   where a globally unique domain name is not available, or has not yet
   been configured, and in these situations it is still desirable to be
   able to use DNS host names [RFC1034] [RFC1035], DNS-Based Service
   Discovery [RFC6763], and other facilites built on top of DNS.

   In the absence of available globally unique domain names, Multicast
   DNS [RFC6762] makes it possible to use DNS-like facilities with names
   that are unique within the local link, using the "local" top-level
   domain.

   This document specifies usage of a similar top-level domain, ".home",
   for names that have scope larger than a single link, but smaller than
   the entire global Internet.

   Evidence indicates that ".home" queries frequently leak out and reach
   the root name servers [ICANN1][ICANN2].  This appears to be because
   of widespread usage of ".home" names in home networks, for example to
   name a printer "printer.home."  When a user takes their laptop to a
   public Wi-Fi hotspot, attempts by that laptop to contact that printer
   result in fruitless ".home" queries to the root name servers.  It
   would be beneficial for operators of public Wi-Fi hotspots to
   recognize and (negatively) answer such queries locally, thereby
   reducing unnecessary load on the root name servers, and this document
   would give those operators the authority to do that.  Readers who are
   aware of other usages of ".home" names, that are not compatible with
   the rules proposed here, are encouraged to contact the authors with
   information to help revise and improve this draft.

   It is expected that the rules for ".home" names outlined here will
   also be suitable to meet the needs of the IETF HOMENET Working Group,
   though that is not the primary goal of this document.  The primary
   goal of this draft is to understand and document the current usage.
   If the needs of the IETF HOMENET Working Group are not met by this
   document codifying the current de facto usage, then the Working Group
   may choose to reserve a different Special Use Domain Name [RFC6761]
   which does meet their needs.  With luck that may not be necessary,
   and a single document may turn out to be sufficient to serve both
   purposes.  In any case, the HOMENET Working Group is likely to be a
   good community in which to find knowledge about how ".home" names are
   currently used.

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