Re: Occasional spurious ERR_DNS FAIL?

From: Jan Torreele <>
Date: Thu, 19 Jun 1997 11:24:34 +0200 (MET DST)

Same here, but only more than once a day. (squid-1.NOVM.10, Solaris
on Ultra 2). It is a bit weird for our users to hear that
' does not exist'. Any clues?

Jan Torreele				E-mail:
BELNET Service Support Team		Tel.:	 +32 (0) 2 / 238 34 70
On Wed, 18 Jun 1997, Jonathan Larmour wrote:
> Occasionally (on order of once a day for my relatively lightly used squid)
> I notice DNS failures in cache.log for sites that exist. The access.log
> contains the following for the entry:
> 866650633.054   2181 ERR_DNS_FAIL/400 1150 GET
>  - NONE/- -
> A refresh brings up the page perfectly fine after the error screen.
> Obviously being so rare, debugging is difficult.
> This is linux 2.0.30, squid 1.1.10 linked with resolver from BIND 4.9.5-P1,
> and also running BIND 8.1-REL as the name server itself, although this
> problem also existed in 4.9.5-P1.
> Unfortunately I don't know which version of squid this started with, but it
> was earlier than 1.1.5. (Sorry, I've been out of the squid scene for quite
> a bit).
> Does anyone know why this is? Does anyone else have the same problem? I
> _think_ it is squid, and not the resolver/name server, but couldn't be
> sure. If nothing else, BIND gets an awful lot of attention (a lot more than
> squid) and I expect people would complain more. I'll play with the
> debugging if no-one knows here, but I thought I'd ask here first.
> TIA,
> Jonathan L.
> Origin UK,323 Cambridge Science Park,Cambridge,England. Tel: +44(1223)423355
> ------[ Do not think that every sad-eyed woman has loved and lost... ]------
> April 12th! Ra!Ra!----[ she may have got him. -Anon ]-----April 12th! Ra!Ra!
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Received on Thu Jun 19 1997 - 02:36:44 MDT

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