[162777] in North American Network Operators' Group
Re: Google Public DNS Problems?
daemon@ATHENA.MIT.EDU (Tony Finch)
Wed May 1 13:40:09 2013
Date: Wed, 1 May 2013 18:39:53 +0100
From: Tony Finch <dot@dotat.at>
To: Blair Trosper <blair.trosper@gmail.com>
In-Reply-To: <CAA5Ek4cHq6RDV-txtSvd5Ty1_BDy6zRfbAG-v4V1JgqmbjUuKw@mail.gmail.com>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Blair Trosper <blair.trosper@gmail.com> wrote:
> Goes all the way up to the A root server before failing spectacularly.
That is an extremely weird response. Are you sure your queries are not
being intercepted by a middlebox? What happens if you use dig +vc ?
Do you get a similar round-trip time when pinging 8.8.8.8 to the one
reported by dig?
> Europa:~ blair$ dig +cd @8.8.8.8 google.com A
>
> ; <<>> DiG 9.8.3-P1 <<>> +cd @8.8.8.8 google.com A
> ; (1 server found)
> ;; global options: +cmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 47332
> ;; flags: qr rd ra cd; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
>
> ;; QUESTION SECTION:
> ;google.com. IN A
>
> ;; AUTHORITY SECTION:
> . 467 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2013050100 1800 900 604800 86400
>
> ;; Query time: 46 msec
> ;; SERVER: 8.8.8.8#53(8.8.8.8)
> ;; WHEN: Wed May 1 10:05:46 2013
> ;; MSG SIZE rcvd: 104
Tony.
--
f.anthony.n.finch <dot@dotat.at> http://dotat.at/
Forties, Cromarty: East, veering southeast, 4 or 5, occasionally 6 at first.
Rough, becoming slight or moderate. Showers, rain at first. Moderate or good,
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