Passive DNS - Common Output Format
draft-dulaunoy-kaplan-passive-dns-cof-01

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Internet Engineering Task Force                              A. Dulaunoy
Internet-Draft                                                     CIRCL
Intended status: Informational                                 A. Kaplan
Expires: July 11, 2014                                           CERT.at
                                                                P. Vixie
                                                                H. Stern
                                                 Farsight Security, Inc.
                                                         January 7, 2014

                   Passive DNS - Common Output Format
                draft-dulaunoy-kaplan-passive-dns-cof-01

Abstract

   This document describes a common output format of Passive DNS Servers
   which clients can query.  The output format description includes also
   in addition a common semantic for each Passive DNS system.  By having
   multiple Passive DNS Systems adhere to the same output format for
   queries, users of multiple Passive DNS servers will be able to
   combine result sets easily.

Status of This Memo

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Dulaunoy, et al.          Expires July 11, 2014                 [Page 1]
Internet-Draft     Passive DNS - Common Output Format       January 2014

   carefully, as they describe your rights and restrictions with respect
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
   2.  Limitation  . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Common Output Format  . . . . . . . . . . . . . . . . . . . .   3
     3.1.  Overview  . . . . . . . . . . . . . . . . . . . . . . . .   3
     3.2.  ABNF grammar  . . . . . . . . . . . . . . . . . . . . . .   4
     3.3.  Mandatory Fields  . . . . . . . . . . . . . . . . . . . .   4
       3.3.1.  rrname  . . . . . . . . . . . . . . . . . . . . . . .   4
       3.3.2.  rrtype  . . . . . . . . . . . . . . . . . . . . . . .   4
       3.3.3.  rdata . . . . . . . . . . . . . . . . . . . . . . . .   5
       3.3.4.  time_first  . . . . . . . . . . . . . . . . . . . . .   5
       3.3.5.  time_last . . . . . . . . . . . . . . . . . . . . . .   5
     3.4.  Optional Fields . . . . . . . . . . . . . . . . . . . . .   5
       3.4.1.  count . . . . . . . . . . . . . . . . . . . . . . . .   5
       3.4.2.  bailiwick . . . . . . . . . . . . . . . . . . . . . .   5
     3.5.  Additional Fields . . . . . . . . . . . . . . . . . . . .   6
       3.5.1.  sensor_id . . . . . . . . . . . . . . . . . . . . . .   6
       3.5.2.  zone_time_first . . . . . . . . . . . . . . . . . . .   6
       3.5.3.  zone_time_last  . . . . . . . . . . . . . . . . . . .   6
     3.6.  Additional Fields Registry  . . . . . . . . . . . . . . .   6
   4.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   6
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
   6.  Privacy Considerations  . . . . . . . . . . . . . . . . . . .   6
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .   7
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   7
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .   7
     8.2.  References  . . . . . . . . . . . . . . . . . . . . . . .   8
     8.3.  Informative References  . . . . . . . . . . . . . . . . .   9
   Appendix A.  Examples . . . . . . . . . . . . . . . . . . . . . .   9
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   9

1.  Introduction

   Passive DNS is a technique described by Florian Weimer in 2005 in
   Passive DNS replication, F Weimer - 17th Annual FIRST Conference on
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