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Problems accessing sites with very short DNS lifespan
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- Subject: Problems accessing sites with very short DNS lifespan
- From: M A Young <m.a.young@xxxxxxxxxxxx>
- Date: Mon, 13 Dec 2010 15:27:00 +0000 (GMT)
- User-agent: Alpine 2.00 (GSO 1167 2008-08-23)
I have seen a couple of sites where access via squid is very slow. The
issue seems to be that the time-to-live entry on their DNS record is 10
seconds in one case, and 30 seconds in another, which I think means that
squid is rechecking DNS frequently enough to slow things down. I worked
around one of these by putting entires in /etc/hosts but this isn't very
scalable. Are there any alternatives to this, perhaps some way of setting
a minimum timeout for DNS records on squid, so it can cope with these
strangely configured sites?
Michael Young
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