nanog mailing list archives

Re: Google Public DNS Problems?


From: Jay Ashworth <jra () baylink com>
Date: Thu, 2 May 2013 11:51:12 -0400 (EDT)

----- Original Message -----
From: "Christopher Morrow" <morrowc.lists () gmail com>

On Thu, May 2, 2013 at 10:32 AM, Jay Ashworth <jra () baylink com> wrote:

----- Original Message -----
From: "Perry Lorier" <isomer () gmail com>

On 5/1/13 12:38 PM, Blair Trosper wrote:

That's all well and good, but I certainly wouldn't expect "nslookup
gmail.com <http://gmail.com>" or for "nslookup google.com" to
return SERVFAIL

Do you have traceroutes to 8.8.8.8 and 8.8.4.4?

Is that actually pertinent?

8.8 and 8.4 aren't *public zone servers* for Google's commercial domains,
are they? I have been assuming they were only open recursive resolver
nameservers...

I think perry's question is: "Can you show me which networks you traversed
and which instance of the service you were talking to at the time of
the problem?" (or 'now' if the problem is persisting)

Sure, Chris.

But since Perry's problem is *inability to resolve names in google's
public zones*, the *path to the ZONE servers* is the thing diagnostics
would require a trace to, no?

If 8.8.8.8 doesn't *answer* for "google.com" (and no one's told me it
has), then how you get there is irrelevant.

Cheers,
-- jra
-- 
Jay R. Ashworth                  Baylink                       jra () baylink com
Designer                     The Things I Think                       RFC 2100
Ashworth & Associates     http://baylink.pitas.com         2000 Land Rover DII
St Petersburg FL USA               #natog                      +1 727 647 1274


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