[DNSOP] multiple responses after ietf100
fujiwara@jprs.co.jp Wed, 14 March 2018 23:55 UTC
Return-Path: <fujiwara@jprs.co.jp>
X-Original-To: dnsop@ietfa.amsl.com
Delivered-To: dnsop@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2251C126FDC for <dnsop@ietfa.amsl.com>; Wed, 14 Mar 2018 16:55:32 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.911
X-Spam-Level:
X-Spam-Status: No, score=-1.911 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id SeYwO9xatAw5 for <dnsop@ietfa.amsl.com>; Wed, 14 Mar 2018 16:55:30 -0700 (PDT)
Received: from off-send01.osa.jprs.co.jp (off-send01.osa.jprs.co.jp [IPv6:2001:218:3001:17::10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 21572124D68 for <dnsop@ietf.org>; Wed, 14 Mar 2018 16:55:29 -0700 (PDT)
Received: from off-sendsmg01.osa.jprs.co.jp (off-sendsmg01.osa.jprs.co.jp [172.23.8.61]) by off-send01.osa.jprs.co.jp (8.14.4/8.14.4) with ESMTP id w2ENtQZb024471 for <dnsop@ietf.org>; Thu, 15 Mar 2018 08:55:26 +0900
Received: from off-sendsmg01.osa.jprs.co.jp (localhost [127.0.0.1]) by postfix.imss71 (Postfix) with ESMTP id 09DF5180064 for <dnsop@ietf.org>; Thu, 15 Mar 2018 08:55:25 +0900 (JST)
Received: from localhost (off-cpu05.osa.jprs.co.jp [172.23.4.15]) by off-sendsmg01.osa.jprs.co.jp (Postfix) with ESMTP id E93F0180062 for <dnsop@ietf.org>; Thu, 15 Mar 2018 08:55:24 +0900 (JST)
Date: Thu, 15 Mar 2018 08:55:24 +0900
Message-Id: <20180315.085524.1629584660596407479.fujiwara@jprs.co.jp>
To: dnsop@ietf.org
From: fujiwara@jprs.co.jp
X-Mailer: Mew version 6.5 on Emacs 24.4 / Mule 6.0 (HANACHIRUSATO)
Mime-Version: 1.0
Content-Type: Text/Plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
X-TM-AS-MML: disable
X-TM-AS-Product-Ver: IMSS-7.1.0.1690-8.2.0.1013-23720.003
X-TM-AS-Result: No-1.576-5.0-31-10
X-imss-scan-details: No-1.576-5.0-31-10
X-TMASE-MatchedRID: NRXckK99gg9CXIGdsOwlUh5+URxv1WlBcOU2OeTiRIua5P4PsuDqT38R XHBfk91ZPLfosXD6mNfXJhQ9fMGheV0ieHN50/kH9UVHiwLx0/Jeu73mFK6GNJGntM3CLyHIVAS 86mPwO9BAC7tQLqzM8q6LQRVkritoTX7PJ/OU3vL+xOhjarOnHg1y6NcpEgHKeeFAQHoVNZJvFz yvAB/ijmrz/G/ZSbVq+gtHj7OwNO2z3NkjOeSFk1+I+11yUeuxt3j85UznnO0sQhUI1Qpqn7Nry wlEfRrfIRu428n6QaPD3EQYvocwerMt13aew5hVImsf+jjJYSqOzIkRnTnz1CaPPOHuybKHnmHv 2THbCNimf04KVCXf0wlo+RpgrxdUVcr204P67pw=
Archived-At: <https://mailarchive.ietf.org/arch/msg/dnsop/ZgTk9owK0wnRwKtNL9m3T28Xp_U>
Subject: [DNSOP] multiple responses after ietf100
X-BeenThere: dnsop@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: IETF DNSOP WG mailing list <dnsop.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/dnsop>, <mailto:dnsop-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/dnsop/>
List-Post: <mailto:dnsop@ietf.org>
List-Help: <mailto:dnsop-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/dnsop>, <mailto:dnsop-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 14 Mar 2018 23:55:32 -0000
I evaluated current full-service resolver implementations that accept
additional resource records or not.
Tested resolvers: BIND 9, Unbound, Knot Resolver, PowerDNS recursor,
Google Public DNS
Result:
Knot resolver 2.0.0 and Unbound 1.7.0rc accept additional NSEC RRs
(+ SOA RRs) in authority section and generate NODATA responses
(a half of additional-answer scenario)
PowerDNS recursor accepts additional A/AAAA in answer section
(aaaa-for-free scenario)
Other cases, additional resource records are ignored.
Details:
https://indico.dns-oarc.net/event/28/session/11/contribution/46/material/slides/0.pdf
--
Kazunori Fujiwara, JPRS <fujiwara@jprs.co.jp>