Date: Wed, 12 Feb 2003 14:43:37 +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: <200302121443.38094.freebsd.nospam@mekanix.dk> In-Reply-To: <20030212121531.GB60013@catflap.home.slightlystrange.org> References: <200302121029.14713.freebsd.nospam@mekanix.dk> <200302121301.14497.freebsd.nospam@mekanix.dk> <20030212121531.GB60013@catflap.home.slightlystrange.org>
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On Wednesday 12 February 2003 13:15, Daniel Bye wrote: > On Wed, Feb 12, 2003 at 01:01:14PM +0100, Bjarne Wichmann Petersen wrote: > > 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"? > > Keep on trying! Sounds as though you are looking at problems somewhere > other than DNS. Might be, but don't know what that should be. I'm having issues with both my freebsd setup. One on my primary desktop, with a setup that have been refined the more I learn about FreeBSD. The second is a vanilla setup with nothing special added. I'm not having issues with Windows in that regard (on the same HW). Tried disabling my firewall, didn't change anything. Someone a couple of month back told me that it was because FreeBSD made it's inquiries in IPv6 which doubleclick.net don't support... or something like that. And the solution would be to set up a cache. Well, might have mixed something up. I'm at loss to where to look else. The browser? Konq and phoenix/mozilla shows the same "stalling" behavior.... *BUT* opera loads and display <http://www.politiken.dk>; in a snap. Hmm... what is opera doing differently? > At a shell prompt, try > $ time host doubleclick.net $ time host dk.doubleclick.net dk.doubleclick.net mail is handled (pri=10) by relay2.doubleclick.net dk.doubleclick.net mail is handled (pri=10) by relay1.doubleclick.net real 0m0.269s user 0m0.000s sys 0m0.005s $ time host dk.doubleclick.net dk.doubleclick.net mail is handled (pri=10) by relay1.doubleclick.net dk.doubleclick.net mail is handled (pri=10) by relay2.doubleclick.net real 0m0.009s user 0m0.004s sys 0m0.001s So, it's safe to assume my cache is working? ... and perhaps, resolving doubleclick.net et al isn't the issue? But looks like the cache expires after a couple of minutes? > a few times, and see what sort of reponse times you get. As a previous > poster has said, the problem may be more to do with downloading phat > content than with getting DNS resolution. May be. But it's some fat content that doesn't show at my end. Both my CPU and connection looks pretty idle while retreiving the content. And since explorer have no issues, I'm not sure I'd buy into that explanation. > Are you having similar problems with other DNS records? Other than doubleclick.net? A few other, though I can't recall which. Usually site with graphics/banners/content from a slew of servers. > What do you have > in /etc/resolv.conf? Right now, just "nameserver 127.0.0.1". Bjarne -- Homepage: http://www.mekanix.dk To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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