Re: Occasional spurious ERR_DNS FAIL?

From: Jonathan Larmour <>
Date: Mon, 23 Jun 1997 11:24:26 +0100

At 11:30 19/06/97 -0700, Duane Wessels wrote:
> writes:
>>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
>You could add these couple of lines, then an ERR_DNS_FAIL occurs,
>the dnsserver error message will be logged to cache.log.
[patch snipped]

I applied the patch, and when I get an ERR_DNS_FAIL in cache.log for a
valid host, it also says:

dnsserver message: (null)

For a "correct" ERR_DNS_FAIL, i.e. where the host indeed doesn't exist, we

dnsserver message: DNS Domain '' is invalid: Host not
found (authoritative).


Jonathan L.

Origin UK,323 Cambridge Science Park,Cambridge,England. Tel: +44(1223)423355
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Received on Mon Jun 23 1997 - 03:33:57 MDT

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