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List: bind-users
Subject: Re: Do TLD glue records support round robin replies?
From: Bob Harold <rharolde () umich ! edu>
Date: 2015-08-17 18:04:16
Message-ID: CA+nkc8C0TxKvK7W_AXQmipgNnoxhNq1RzVKKAJ+Y8NNG04EvXA () mail ! gmail ! com
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On Mon, Aug 17, 2015 at 9:34 AM, MURTARI, JOHN <jm5903@att.com> wrote:
> Folks,
>
>
>
> Our normal procedure when changing the IP address of a TLD
> name server is to get the new server responding properly and then update
> the glue records with the Registrar to reflect the new address, normally
> 1-2 days apart for two nameservers. We monitor query traffic on each and
> usually see a distinctive shift once the glue record is updated and almost
> all traffic shifts in the first 24 hours. e.g.
>
> ns1.example .com – 1.2.3.4 (first day) Ã
> 10.20.30.40 (confirm normal ops)
>
> ns2.example.com—5.6.7.8 (second day) à 50.60.70.80
>
>
>
> We had someone on staff make a suggestion we could modify
> this approach by adding an additional IP address for each of the existing
> servers:
>
> ns1.example.dom – 1.2.3.4 (first day) à 1.2.3.4 &
> 10.20.30.40 (confirm normal ops)
>
>
>
> I never even thought a Registrar would allow this? Is it
> supported? A useful idea in certain scenarios (although I'm not sure
> when) ?
>
My $.02
That is a valid idea and useful. But if the NS, A, and AAAA records are
approaching the max packet size, then I would avoid doing it. Also, it
adds more steps to the process. So it takes a little longer but is a
little less risk. Your choice.
-- Bob Harold
> Thanks!
>
>
>
> ----------------
> John Murtari – jm5903@att.com
>
> Ciberspring
>
>
>
[Attachment #5 (text/html)]
<div dir="ltr"><div class="gmail_extra"><div><div \
class="gmail_signature"><br></div></div><div class="gmail_quote">On Mon, Aug 17, 2015 \
at 9:34 AM, MURTARI, JOHN <span dir="ltr"><<a href="mailto:jm5903@att.com" \
target="_blank">jm5903@att.com</a>></span> wrote:<br><blockquote \
class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc \
solid;padding-left:1ex">
<div lang="EN-US" link="#0563C1" vlink="#954F72">
<div>
<p class="MsoNormal">Folks,<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"> Our normal procedure when \
changing the IP address of a TLD name server is to get the new server responding \
properly and then update the glue records with the Registrar to reflect the new \
address, normally 1-2 days apart for two nameservers. We monitor query traffic \
on each and usually see a distinctive shift once the glue record is updated and \
almost all traffic shifts in the first 24 hours. e.g.<br> <br>
<u></u><u></u></p>
<p class="MsoNormal"> ns1.example .com – 1.2.3.4 \
(first day) <span style="font-family:Wingdings"> Ã </span> 10.20.30.40 \
(confirm normal ops)<u></u><u></u></p> <p class="MsoNormal"> \
<a href="http://ns2.example.com" target="_blank">ns2.example.com</a>—5.6.7.8 \
(second day) <span style="font-family:Wingdings"> Ã </span> \
50.60.70.80<u></u><u></u></p> <p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"> We had someone on staff make a \
suggestion we could modify this approach by adding an additional IP address for each \
of the existing servers:<u></u><u></u></p> <p class="MsoNormal"> \
ns1.example.dom – 1.2.3.4 (first day) <span style="font-family:Wingdings"> à \
</span> 1.2.3.4 & 10.20.30.40 (confirm normal ops)<u></u><u></u></p> <p \
class="MsoNormal"><u></u> <u></u></p> <p class="MsoNormal"> \
I never even thought a Registrar would allow this? Is it supported? A useful \
idea in certain scenarios (although I'm not sure when) \
?</p></div></div></blockquote><div><br></div><div>My $.02 </div><div>That is a valid \
idea and useful. But if the NS, A, and AAAA records are approaching the max packet \
size, then I would avoid doing it. Also, it adds more steps to the process. So it \
takes a little longer but is a little less risk. Your \
choice.</div><div><br></div><div>-- Bob Harold</div><div> </div><blockquote \
class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc \
solid;padding-left:1ex"><div lang="EN-US" link="#0563C1" vlink="#954F72"><div><p \
class="MsoNormal"><u></u></p> <p class="MsoNormal"> \
Thanks!<u></u><u></u></p> <p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">---------------- <br>
John Murtari – <a href="mailto:jm5903@att.com" \
target="_blank">jm5903@att.com</a><u></u><u></u></p> <p \
class="MsoNormal">Ciberspring<u></u><u></u></p> <p \
class="MsoNormal"><br></p></div></div></blockquote></div><br></div></div>
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