From owner-freebsd-net@FreeBSD.ORG Wed Feb 13 03:17:28 2008 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0CC8416A41A; Wed, 13 Feb 2008 03:17:28 +0000 (UTC) (envelope-from edwin@mavetju.org) Received: from mail5out.barnet.com.au (mail5.barnet.com.au [202.83.178.78]) by mx1.freebsd.org (Postfix) with ESMTP id C267113C4D9; Wed, 13 Feb 2008 03:17:27 +0000 (UTC) (envelope-from edwin@mavetju.org) Received: by mail5out.barnet.com.au (Postfix, from userid 1001) id 0164A2218AA8; Wed, 13 Feb 2008 14:17:26 +1100 (EST) X-Viruscan-Id: <47B2614600010048BD685C@BarNet> Received: from mail5auth.barnet.com.au (mail5.barnet.com.au [202.83.178.78]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "mail5auth.barnet.com.au", Issuer "*.barnet.com.au" (verified OK)) by mail5.barnet.com.au (Postfix) with ESMTP id 7CE1D21B1C53; Wed, 13 Feb 2008 14:17:26 +1100 (EST) Received: from k7.mavetju (k7.mavetju.org [10.251.1.18]) by mail5auth.barnet.com.au (Postfix) with ESMTP id 25AAC2218AC4; Wed, 13 Feb 2008 14:17:26 +1100 (EST) Received: by k7.mavetju (Postfix, from userid 1001) id EC4E82EB; Wed, 13 Feb 2008 14:17:25 +1100 (EST) Date: Wed, 13 Feb 2008 14:17:25 +1100 From: Edwin Groothuis To: d@delphij.net Message-ID: <20080213031725.GC3957@k7.mavetju> References: <47B2488D.70707@delphij.net> <20080213015144.GA3957@k7.mavetju> <47B2591D.4000703@delphij.net> <20080213024643.GB3957@k7.mavetju> <47B25F71.3050005@delphij.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <47B25F71.3050005@delphij.net> User-Agent: Mutt/1.4.2.3i Cc: freebsd-net@freebsd.org, ume@FreeBSD.org Subject: Re: Strange resolver behavior X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 13 Feb 2008 03:17:28 -0000 On Tue, Feb 12, 2008 at 07:09:37PM -0800, Xin LI wrote: > > Yes, but it is the MX record querying it is complaining about. > Well, so perhaps that they are different problems? > > What I think is a problem is that attempting to resolve > 'ps_other.a.shifen.com' gets "Unknown host", here is a quick testcase: This is the output to ask the A record for it: [~] edwin@k7>dig @ns2.a.shifen.com ps_other.a.shifen.com a ; <<>> DiG 9.3.4-P1 <<>> @ns2.a.shifen.com ps_other.a.shifen.com a ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 37047 ;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;ps_other.a.shifen.com. IN A ;; ANSWER SECTION: ps_other.a.shifen.com. 1200 IN A 202.108.22.46 ;; Query time: 522 msec ;; SERVER: 220.181.27.59#53(220.181.27.59) ;; WHEN: Wed Feb 13 14:15:41 2008 ;; MSG SIZE rcvd: 55 Status on the sixth line is NOERROR (yay!) This is the output of the MX record: [~] edwin@k7>dig @ns2.a.shifen.com ps_other.a.shifen.com mx ; <<>> DiG 9.3.4-P1 <<>> @ns2.a.shifen.com ps_other.a.shifen.com mx ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOTIMP, id: 56357 ;; flags: qr aa rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;ps_other.a.shifen.com. IN MX ;; Query time: 523 msec ;; SERVER: 220.181.27.59#53(220.181.27.59) ;; WHEN: Wed Feb 13 14:16:13 2008 ;; MSG SIZE rcvd: 39 Status on the sixth line is NOTIMP. That is the part that host fails on. Edwin -- Edwin Groothuis | Personal website: http://www.mavetju.org edwin@mavetju.org | Weblog: http://www.mavetju.org/weblog/