Date: Mon, 17 May 2004 09:08:35 -0400 From: Sven Willenberger <sven@dmv.com> To: freebsd-current@freebsd.org Subject: Re: bind timeouts Message-ID: <1084799315.5817.6.camel@lanshark.dmv.com> In-Reply-To: <1084776599.808.47.camel@localhost> References: <0cc701c43704$fe189fc0$7890a8c0@dyndns.org> <200405110321.i4B3LFGI073037@bunrab.catwhisker.org> <20040511093634.GA41727@gits.dyndns.org> <1084776599.808.47.camel@localhost>
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On Mon, 2004-05-17 at 16:50 +1000, Dennis Kristensen wrote: > On Tue, 2004-05-11 at 19:36, Cyrille Lefevre wrote: > > On Mon, May 10, 2004 at 08:21:15PM -0700, David Wolfskill wrote: > > > >From: "Cyrille Lefevre" <clefevre-lists@9online.fr> > > > > CC -current > > > > > >for some times, I have some troubles to send e-mails, they > > > >are returned w/ a host unknown error message (the relay)... > > > >I spent a whole day to track down the problem w/o success. > > > >... > > > >however, it seems to be located around bind, but I don't know > > > >if it's the client side or the server side which is broken, > > > >maybe the TCP stack ! > > > > > > >I'm running -current last updated around 18 April 2004. > > > > > > I have been tracking both -STABLE and -CURRENT daily for quite a while; > > > I don't recall seeing the symptoms you report. > > > > someone (Dennis Kristensen) reports me to have similar problems but > > forget to CC -current :( > > After observing this for some days now (with no progress towards a > solution), i think this might be a problem with the kernel rather than > BIND. I have a 5.2.1-p5 system that shows the same symptons. It is > lightly loaded and the above mentioned symptons start appearing after > 1-3 days of uptime. A restart of BIND does not change anything, but af > reboot of the system gives me another few days of correct operation. > > I hope the above can give someone more hints to what might be going on. > I also hope to get some pointers to resource counters i can check to try > an identify if something is leaking. > > The mail system is standard qmail, qmail-scanner with clamav and > spamassassin and vpopmail - all from ports. > > Thanks for any hints or information in advance, > Dennis Kristensen We had issues with qmail and bind playing nice together, with frequent "CNAME_lookup_failed_temporarily" entries in the logfiles. Having the mailserver use a nameserver that is running tinydns/dnscache solved the problem (not really a big surprise knowing djb's disdain for the isc product). Why you would start having this issue I don't know, but you may want to try the tinydns/dnscache alternative. Sven
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