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Date:      Wed, 12 Feb 2003 13:01:14 +0100
From:      Bjarne Wichmann Petersen <freebsd.nospam@mekanix.dk>
To:        dan@slightlystrange.org, freebsd-questions@FreeBSD.ORG
Subject:   Re: Resolving or blocking eg. doubleclick.net?
Message-ID:  <200302121301.14497.freebsd.nospam@mekanix.dk>
In-Reply-To: <20030212102223.GA60013@catflap.home.slightlystrange.org>
References:  <200302121029.14713.freebsd.nospam@mekanix.dk> <200302121109.33305.kde.nospam@mekanix.dk> <20030212102223.GA60013@catflap.home.slightlystrange.org>

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On Wednesday 12 February 2003 11:22, Daniel Bye wrote:

> I have just tried to resolve doubleclick.net, and the first hit took
> around three seconds.  Thereafter, with it cachedi locally, it came back
> in at most 0.02 seconds.  I reckon your best bet is to persevere - does
> the cache demonstrate any advantage at all?

No advantage at all. What do you mean by "persevere"?

> I put my upstream (ISP's) caches in the forwarders section in named.conf.
> While not strictly necessary, as already pointed out, it can give you the
> advantage of tapping into a huge set of cached data on your ISP's servers.
> Suck it and see - I cannot believe that you are the only person connecting
> through your ISP who gets pelted with these bloody ads from doubleclick.

Have added them, without seeing any difference in performance. But it does 
make my tcpdump more readable.

> Check for messages in /var/log/messages, or whatever file your named
> logs to.

/var/log/messages reports nothing unusual. Haven't told named to log somewhere 
else.

Bjarne
-- 
Homepage: http://www.mekanix.dk


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