AS112 Nameserver Operations
RFC 6304

Internet Engineering Task Force (IETF)                          J. Abley
Request for Comments: 6304                                         ICANN
Category: Informational                                         W. Maton
ISSN: 2070-1721                                                 NRC-CNRC
                                                               July 2011

                      AS112 Nameserver Operations

Abstract

   Many sites connected to the Internet make use of IPv4 addresses that
   are not globally unique.  Examples are the addresses designated in
   RFC 1918 for private use within individual sites.

   Devices in such environments may occasionally originate Domain Name
   System (DNS) queries (so-called "reverse lookups") corresponding to
   those private-use addresses.  Since the addresses concerned have only
   local significance, it is good practice for site administrators to
   ensure that such queries are answered locally.  However, it is not
   uncommon for such queries to follow the normal delegation path in the
   public DNS instead of being answered within the site.

   It is not possible for public DNS servers to give useful answers to
   such queries.  In addition, due to the wide deployment of private-use
   addresses and the continuing growth of the Internet, the volume of
   such queries is large and growing.  The AS112 project aims to provide
   a distributed sink for such queries in order to reduce the load on
   the IN-ADDR.ARPA authoritative servers.  The AS112 project is named
   after the Autonomous System Number (ASN) that was assigned to it.

   This document describes the steps required to install a new AS112
   node and offers advice relating to such a node's operation.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Not all documents
   approved by the IESG are a candidate for any level of Internet
   Standard; see Section 2 of RFC 5741.

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RFC 6304               AS112 Nameserver Operations             July 2011

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc6304.

Copyright Notice

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   document authors.  All rights reserved.

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   it for publication as an RFC or to translate it into languages other
   than English.

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RFC 6304               AS112 Nameserver Operations             July 2011

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  AS112 DNS Service  . . . . . . . . . . . . . . . . . . . . . .  4
     2.1.  Zones  . . . . . . . . . . . . . . . . . . . . . . . . . .  4
     2.2.  Nameservers  . . . . . . . . . . . . . . . . . . . . . . .  4
   3.  Installation of a New Node . . . . . . . . . . . . . . . . . .  5
     3.1.  Useful Background Knowledge  . . . . . . . . . . . . . . .  5
     3.2.  Topological Location . . . . . . . . . . . . . . . . . . .  5
     3.3.  Operating System and Host Considerations . . . . . . . . .  5
     3.4.  Routing Software . . . . . . . . . . . . . . . . . . . . .  6