On Sat, Sep 3, 2011 at 2:06 PM, TMK <eng...@gmail.com> wrote: > >> Message: 1 >> Date: Fri, 2 Sep 2011 10:05:42 +0200 > >> From: TMK <eng...@gmail.com> >> Subject: Re: Fwd: Re: slow non-cached quries >> To: bind-users@lists.isc.org >> Message-ID: >> >> <caakgotgcoqdsz2fjc8y3kl+bj1guabsb0ohoxnu+dgt8fyf...@mail.gmail.com> >> Content-Type: text/plain; charset="iso-8859-1" >> >> On Sep 2, 2011 9:48 AM, "TMK" <eng...@gmail.com> wrote: >> > >> > ---------- Forwarded message ---------- >> > From: "Leonard Mills" <l...@yahoo.com> >> > Date: Aug 31, 2011 8:15 PM >> > Subject: Re: slow non-cached quries >> > To: "TMK" <eng...@gmail.com> >> > >> > ;; Received 738 bytes from 192.112.36.4#53(G.ROOT-SERVERS.NET) in 3133 >> > ms >> > >> > That pretty much is your delay. Look to your intermediate network >> segments, especially any smart devices. >> > >> >> ________________________________ >> >> From: TMK <eng...@gmail.com> >> >> To: Mark Andrews <ma...@isc.org> >> >> Cc: bind-us...@isc.org >> >> Sent: Wednesday, August 31, 2011 4:44 AM >> >> Subject: Re: slow non-cached quries >> >> >> >> On Tue, Aug 30, 2011 at 9:26 AM, TMK <eng...@gmail.com> wrote: >> >> >> >> > Actually we have around 6 servers. All I need to do is to reduce the > response time for the uncached responses as much as possible. So will the > master cache server save maybe 200 sec of the response time which is good > number is there any other way to force my server to contact gtld servers > closer to its geoloc in Africa to reduce the round trip times is that > possible
one of the worst responses time we captured on our network was for domain : a.root-servers.net (this is represent 5% of our dns traffic). we got response time up to 30 sec. I know this queries can be generated by viruses. but I need to know: why the bind responding so slowly to such domain > 30 sec and if there is way to reduce such time.(even if it is query from a virus) Regards, _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
