RE: [squid-users] Issue related to using Squid 3.1 or 3.29 and accessing a site that uses a recursive DNS record. (30 seconds to bring up site)

From: Duncan, Brian M. <>
Date: Thu, 18 Apr 2013 15:46:00 +0000

>Thanks! I missed that directive. And yes when I lowered it I was able to decrease the initial lookup time to 5 seconds if I set the directive to 5 seconds. I am wondering what >tradeoff I will have, if anything else will break by lowering this too low.

>Is the timeout on lookup I experience due to the internal resolver trying to do an ipv6 host name lookup?

>I received similar #'s to the above when it tried for the AAAA record it took 15 seconds till it timed out.

>Thanks again

I just wanted to follow up on this one last time.

I found with the timeout set low, it still would cause problems with certain browsers like IE, where the page would reset and the intended page would not display after the 5 seconds I had it set to. (on a DNS lookup for an AAAA record)

I recompiled Squid with --disable-ipv6, and then that seemed to work the best. I did not need to lower the lookup time then. And it works fast every time.

I would assume this same problem would occur with any DNS that does not provide ipv6 AAAA record.

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Received on Thu Apr 18 2013 - 15:46:12 MDT

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