Re: [squid-users] 3.4.0.1 dnsreq statistics question

From: Amos Jeffries <squid3_at_treenet.co.nz>
Date: Wed, 31 Jul 2013 04:20:59 +1200

On 31/07/2013 2:15 a.m., Eliezer Croitoru wrote:
> On 07/30/2013 03:15 PM, Amos Jeffries wrote:
>> Yes and No.
>>
>> Yes, 3.4 added mDNS support which have no particular guarantee of
>> getting any response. If you do not have mDNS setup the .local requests
>> will timeout instead, before moving on to the global resolution methods.
>>
>> No, because the above event should only show up on single-label domain
>> names in URL or Host: header. And if you do have .local mDNS setup in
>> the network most of them should be getting responses anyway.
>>
>> Amos
> It's most likely to be the internet DNS infrastructure that is the
> problem compared to local mDNS.

Only if the NS being used is something remote. Such as Googles
resolvers. The recommended practice of using a local recursive resolver
will send a SERVFAIL response back to Squid if there is any kind of
Internet DNS failures. Which does get recorded as a received response
even if it is not useful.

Amos
Received on Tue Jul 30 2013 - 16:21:04 MDT

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