Date: Wed, 13 Feb 2008 13:46:43 +1100 From: Edwin Groothuis <edwin@mavetju.org> To: d@delphij.net Cc: freebsd-net@freebsd.org, ume@FreeBSD.org Subject: Re: Strange resolver behavior Message-ID: <20080213024643.GB3957@k7.mavetju> In-Reply-To: <47B2591D.4000703@delphij.net> References: <47B2488D.70707@delphij.net> <20080213015144.GA3957@k7.mavetju> <47B2591D.4000703@delphij.net>
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On Tue, Feb 12, 2008 at 06:42:37PM -0800, Xin LI wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Edwin Groothuis wrote: > > On Tue, Feb 12, 2008 at 05:31:57PM -0800, Xin LI wrote: > >> Received 127 bytes from 127.0.0.1#53 in 0 ms > >> [delphij@charlie] ~> host ps_other.a.shifen.com > >> ps_other.a.shifen.com has address 202.108.22.46 > >> Host ps_other.a.shifen.com not found: 3(NXDOMAIN) > > > > 12:49:45.620015 IP 10.251.1.18.51852 > 202.108.22.102.53: 18450 MX? ps_other.a.shifen.com. (39) > > 12:49:46.086227 IP 202.108.22.102.53 > 10.251.1.18.51852: 18450 NotImp*- 0/0/0 (39) > > > > That's the one it is complaining about, not about the hostname > > itself. > > > > Yes, the warning/error message could be a little bit smarter. > > Em... That's fine I think, it does not seem to be the MX to cause the > problem, though. I have tried to visit 'dict.baidu.com' in Firefox and > it told me that the name can not resolve. tcpdump indicates that the > server has respond the A RR but resolver still queries AAAA... Yes, but it is the MX record querying it is complaining about. Edwin -- Edwin Groothuis | Personal website: http://www.mavetju.org edwin@mavetju.org | Weblog: http://www.mavetju.org/weblog/
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