Google Public DNS Problems?

Thu May 2 16:01:37 UTC 2013

On Thu, May 2, 2013 at 11:51 AM, Jay Ashworth <jra at baylink.com> wrote:

> ----- Original Message -----
> > From: "Christopher Morrow" <morrowc.lists at gmail.com>
>
> > On Thu, May 2, 2013 at 10:32 AM, Jay Ashworth <jra at baylink.com> wrote:
> >
> > > ----- Original Message -----
> > > > From: "Perry Lorier" <isomer at 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
>

s/perry/blair/

> public zones*, the *path to the ZONE servers* is the thing diagnostics
> would require a trace to, no?
>

I think, from some troubleshooting with blair yesterday he was having some
odd problems with queries to google-public-dns (gdns), where everything he
asked came up servfail. I wasn't able to repro this, which was annoying ;(
We (perry/others) were interested in verifying that something odd wasn't
happening between blair and the server answering his question(s)...

>
> 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.
>
>
8.8.8.8 is just an open resolver... oh, jabley replied as well (alway a
cogent reply from him)

> Cheers,
> -- jra
> --
> Jay R. Ashworth                  Baylink
> jra at baylink.com
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>