Considerations for Large Authoritative DNS Servers Operators
draft-moura-dnsop-authoritative-recommendations-05

Document Type Active Internet-Draft (individual)
Last updated 2019-07-29 (latest revision 2019-07-26)
Stream ISE
Intended RFC status Informational
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Document shepherd Adrian Farrel
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Send notices to Adrian Farrel <rfc-ise@rfc-editor.org>
DNSOP Working Group                                             G. Moura
Internet-Draft                                        SIDN Labs/TU Delft
Intended status: Informational                               W. Hardaker
Expires: January 27, 2020                                   J. Heidemann
                                      USC/Information Sciences Institute
                                                               M. Davids
                                                               SIDN Labs
                                                           July 26, 2019

      Considerations for Large Authoritative DNS Servers Operators
           draft-moura-dnsop-authoritative-recommendations-05

Abstract

   This document summarizes recent research work exploring DNS
   configurations and offers specific, tangible considerations to
   operators for configuring authoritative servers.

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

Ed note

   This draft will be renamed to draft-moura-dnsop-large-authoritative-
   considerations in case adpoted by the WG, to reflect the new title.

   Text inside square brackets ([RF:ABC]) refers to:

   o  individual comments we have received about the draft, and
      enumerated under <https://github.com/gmmoura/draft-moura-dnsop-
      authoritative-recommendations/blob/master/reviews/reviews-
      dnsop.md>.

   o  Issues listed on our Github repository

   Both types will be removed before publication.

   This draft is being hosted on GitHub - <https://github.com/gmmoura/
   draft-moura-dnsop-authoritative-recommendations>, where the most
   recent version of the document and open issues can be found.  The
   authors gratefully accept pull requests.

Status of This Memo

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

Moura, et al.           Expires January 27, 2020                [Page 1]
Internet-Draft      Considerations-Large-Auth-DNS-Ops          July 2019

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   This Internet-Draft will expire on January 27, 2020.

Copyright Notice

   Copyright (c) 2019 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
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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Background  . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  C1:  Use equally strong IP anycast in every authoritative
       server (NS) for better load distribution  . . . . . . . . . .   5
   4.  C2: Routing Can Matter More Than Locations  . . . . . . . . .   6
   5.  C3: Collecting Detailed Anycast Catchment Maps Ahead of
       Actual Deployment Can Improve Engineering Designs . . . . . .   7
   6.  C4: When under stress, employ two strategies  . . . . . . . .   9
   7.  C5: Consider longer time-to-live values whenever possible . .  10
   8.  Security considerations . . . . . . . . . . . . . . . . . . .  12
   9.  Privacy Considerations  . . . . . . . . . . . . . . . . . . .  12
   10. IANA considerations . . . . . . . . . . . . . . . . . . . . .  13
   11. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  13
   12. References  . . . . . . . . . . . . . . . . . . . . . . . . .  13
     12.1.  Normative References . . . . . . . . . . . . . . . . . .  13
     12.2.  Informative References . . . . . . . . . . . . . . . . .  15
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  16

Moura, et al.           Expires January 27, 2020                [Page 2]
Internet-Draft      Considerations-Large-Auth-DNS-Ops          July 2019

1.  Introduction

   This document summarizes recent research work exploring DNS
   configurations and offers specific tangible considerations to DNS
   authoritative servers operators (DNS operators hereafter).
   [RF:JAb2]], [RF:MSJ1], [RF:DW2].  The considerations (C1-C5)
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