On Sun, Jul 9, 2017 at 1:59 PM John W. Blue <john.b...@rrcic.com> wrote:
> Abdulhadi, > > > > Honestly, I think that a design spec of getting DNS responses in 3ms > across the board is unrealistic. My initial MX query for litc.ly took > 367ms: > > > Like many poorly written / articulated SLAs, the devil is in the details. I could happily read this as the server / service must respond within 3ms. The OP mentioned VIP, so this could be for auth DNS, in which case responding to a query within 3ms is trivial... W ;; ADDITIONAL SECTION: > > exmail.litc.ly. 14400 IN A 197.215.159.227 > > dns2.lttnet.net. 21600 IN A 62.240.36.40 > > dns3.lttnet.net. 21600 IN A 62.240.36.40 > > > > ;; Query time: 367 msec > > ;; SERVER: 127.0.0.1#53(127.0.0.1) > > ;; WHEN: Sun Jul 9 12:50:58 2017 > > ;; MSG SIZE rcvd: 144 > > > > Additionally, given the operational environment in which you exist I would > recommend that you strive for just providing good DNS services in general. > > > > Good luck. > > > > John > > > > *From:* bind-users [mailto:bind-users-boun...@lists.isc.org] *On Behalf > Of *Abdulhadi Ettwejiri > *Sent:* Sunday, July 09, 2017 2:32 AM > *To:* bind-users@lists.isc.org > *Subject:* designing the DNS from the scratch > > > > HI, > > > > we are ISP company , we are providing Internet to our customer, Recently > one of our VIP customer ask for DNS service, and need the response time > 3msec, we don't have enough knowledge of DNS, > 1- To achieve the goal of my customer about the response time I need > to know what’s the optimal design solution for DNS ( Authoritative or > Recursive(,or there is other design. > > 2- If the answer in the previous question an “authoritative”, is > there any registration & technical requirements for so (i.e. ccTLD, … ) > > > > > > *Best regards* > > > > *Abdulhadi Ettwejiri* > > *Technical Support Department* > > *[image: Description: LITC-Logo03]* > > *Zawia Street inside GPTC building | Tripoli | Libya | * > > *)** + 218 91 9994265 * *** *abdulhadi.ettwej...@litc.ly > <abdulhadi.ettwej...@litc.ly>* > *(** + 218 21 3600234 * *:* *http://www.litc.ly* > <http://www.litc.ly/> > > *7** + 218 21 3617777* > > > _______________________________________________ > 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 -- I don't think the execution is relevant when it was obviously a bad idea in the first place. This is like putting rabid weasels in your pants, and later expressing regret at having chosen those particular rabid weasels and that pair of pants. ---maf
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