Date: Thu, 29 Dec 2011 10:33:17 +0300 From: Peter Andreev <andreev.peter@gmail.com> To: Victor Sudakov <vas@mpeks.tomsk.su> Cc: freebsd-questions@freebsd.org Subject: Re: mutual forwarders in ISC BIND Message-ID: <CAE_wXn11xkq7ZRj9ouOfwJy=Z1rmsirSaaNRid%2BypayDs1y=aQ@mail.gmail.com> In-Reply-To: <20111229022538.GA38514@admin.sibptus.tomsk.ru> References: <20111228075422.GA18064@admin.sibptus.tomsk.ru> <4EFAE80D.9040900@my.gd> <20111228130734.GA23763@admin.sibptus.tomsk.ru> <4EFB1B4F.2090504@my.gd> <CAE_wXn2qKfQg_Od=VfX63TcvDSRFEz2ZLCDZDs71QjP2604QOQ@mail.gmail.com> <CAE_wXn1DzpxhhN_ASF%2B-LuxRBsdfgA8Se3ydhAgeJs5p53=VPg@mail.gmail.com> <20111228175512.GB27286@admin.sibptus.tomsk.ru> <20111229022538.GA38514@admin.sibptus.tomsk.ru>
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2011/12/29 Victor Sudakov <vas@mpeks.tomsk.su>: > Victor Sudakov wrote: >> >> > Victor, we researched this topic and learned that response time highly >> > depends on distance between user and resolver, while cache influence >> > on this value is lesser. >> > So I advice you to keep all as is. >> >> Be it so. Thank you. > > And the reason for the whole thread. One of the customers told me that > 8.8.8.8 is faster than our own DNS servers which are located on the > same 100 MBit/s LAN with them. I was shocked but it seems true, at > least for the answers which are not yet cached. I don't know what software google uses on its resolvers, but I suppose something with shared or synchronizing cache. May be they also make preventive lookups on popular domains to fill this cache. And the reason why 8.8.8.8 seems faster - it answered from cache while your resolver made full lookup chain. > > -- > Victor Sudakov, =A0VAS4-RIPE, VAS47-RIPN > sip:sudakov@sibptus.tomsk.ru > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.o= rg" --=20 -- AP
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