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Re: QWest is having some pretty nice DNS issues right now
From: Michael Loftis <mloftis () wgops com>
Date: Mon, 09 Jan 2006 11:47:51 -0700




--On January 9, 2006 5:30:12 PM +0000 "Christopher L. Morrow" <christopher.morrow () mci com> wrote:

What's interesting to me, atleast, is that this is about the 5th time
someone has said similar things in the last 6 months: "DNS is harder than
I thought it was" (or something along that line...)

So, do most folks think:
1) get domain-name
2) get 2 machines for DNS servers
3) put ips in TLD system and roll!

It seems like maybe that is all too common. Are the 'best practices'
documented for Authoritative DNS somewhere central? Are they just not well
publicized? Do registrars offer this information for end-users/clients? Do
they show how their hosted solutions are better/works/in-compliance-with
these best practices? (worldnic comes to mind)

Should this perhaps be better documented and presented at a future NANOG
meeting? (and thus placed online in presentation format)

Also it should be noted that there's a general lack of understanding about how very crucial DNS resolver performance is in the end user/customer perception of a network's performance. I can't tell you how many times I've used a local resolver, even on a modem mind you, and seen a dramatic improvement in the end user experience, which is, the web browser. Other applications are pretty DNS bound too anymore. And many large ISPs overload their resolvers, or have resolvers not prepared/configured to handle the amount of queries they're getting. I'm not saying I know the answers there, I'm just saying that I've seen quite a few times where DNS (or even other central directories, LDAP, ActiveDirectory come to mind) have been the 'bottleneck' from a user standpoint since name resolution would take so long.


-Chris





--
"Genius might be described as a supreme capacity for getting its possessors
into trouble of all kinds."
-- Samuel Butler


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