nanog mailing list archives
Re: Google Public DNS Problems?
From: Joe Abley <jabley () hopcount ca>
Date: Thu, 2 May 2013 11:55:30 -0400
On 2013-05-02, at 11:51, Jay Ashworth <jra () baylink com> wrote:
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?
Blair's problem, I think. Perry was just being helpful. Blair's point was that if Google DNS is not able to resolve Google domains, then you know something is wrong.
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.
Well, if you're trying to troubleshoot the performance or functionality of a service that is deployed using anycast, knowing what anycast node is giving problems is pretty useful. I say this as someone who has to help troubleshoot problems with anycast DNS services pretty regularly. Since there's no obvious way (in the draft-jabley-dnsop-anycast-mapping sense) to identify a Google DNS anycast node in-band, traceroute and RTT are pretty much what we're left with. Joe
Current thread:
- Re: Google Public DNS Problems?, (continued)
- Re: Google Public DNS Problems? Blair Trosper (May 01)
- Re: Google Public DNS Problems? Livingood, Jason (May 01)
- Re: Google Public DNS Problems? Andrew Fried (May 01)
- Re: Google Public DNS Problems? Yang Yu (May 01)
- Re: Google Public DNS Problems? Christopher Morrow (May 01)
- Re: Google Public DNS Problems? shawn wilson (May 01)
- Re: Google Public DNS Problems? Perry Lorier (May 02)
- Re: Google Public DNS Problems? Jay Ashworth (May 02)
- Re: Google Public DNS Problems? Christopher Morrow (May 02)
- Re: Google Public DNS Problems? Jay Ashworth (May 02)
- Re: Google Public DNS Problems? Joe Abley (May 02)
- Re: Google Public DNS Problems? Charles Gucker (May 02)
- Re: Google Public DNS Problems? Joe Abley (May 02)
- Re: Google Public DNS Problems? Joe Abley (May 02)
- whoami.akamai.net [was: Google Public DNS Problems?] Patrick W. Gilmore (May 02)
- Re: whoami.akamai.net [was: Google Public DNS Problems?] Constantine A. Murenin (May 02)
- Re: whoami.akamai.net [was: Google Public DNS Problems?] Patrick W. Gilmore (May 02)
- Re: whoami.akamai.net [was: Google Public DNS Problems?] Christopher Morrow (May 02)
- Re: whoami.akamai.net [was: Google Public DNS Problems?] Cameron Daniel (May 02)
- Re: whoami.akamai.net [was: Google Public DNS Problems?] Constantine A. Murenin (May 02)
- Re: whoami.akamai.net [was: Google Public DNS Problems?] Valdis . Kletnieks (May 02)