[dns-operations] Questions about DNS resolver servers best practices

John Kristoff jtk at cymru.com
Wed Dec 8 17:14:16 UTC 2010

On Wed, 08 Dec 2010 10:29:41 -0600
Stephen L Johnson <stephen.johnson at arkansas.gov> wrote:

> Even as long as I've been doing DNS, at times I still feel like a DNS
> newbie.

You're not alone.  It wasn't until I went to work for Rodney at Ultra a
few years ago until I realized how much I didn't know.  Then I began to
discover how much about DNS, both in terms of operational behavior and
protocol nuances weren't always documented or easily known until I
spent more time exploring and hanging out with the DNS cognoscenti.

> Now my question is should what best practices should I consider in my
> infrastructure design?

There are at least a few areas of concern that you should consider.  At
the risk of come off a bit vain, beginning on slide 27 I've recently
been trying to highlight a few of them, which you might find useful to


In some cases there are BCPs, but in many other cases it all depends on
your situation.  Asking the questions and reasoning about the answers is
a good approach to get to something decent.  I'd be interested in
co-authoring an IETF BCP on those sorts of things if I could get some


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