nanog mailing list archives

Re: ipp.gov and Google DNS (8.8.8.8)


From: Casey Deccio <casey () deccio net>
Date: Thu, 30 May 2013 09:03:37 -0700

On Thu, May 30, 2013 at 8:17 AM, Stephane Bortzmeyer <bortzmeyer () nic fr> wrote:
On Thu, May 30, 2013 at 09:04:44AM -0600,
 Josh Galvez <josh () zevlag com> wrote
 a message of 135 lines which said:

DNSSEC seems to be validating properly.

Since Google Public DNS returns SERVFAIL even with the +cd option
(Checking Disabled), I suspect that it is not a DNSSEC issue at all.


That's not my experience:

$ dig +cd @8.8.8.8 ipp.gov | grep status:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 16884
$ dig @8.8.8.8 ipp.gov | grep status:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 57555

The resolvers seem to be choking on the DNSKEY (with or without CD):

$ dig +cd @8.8.8.8 ipp.gov dnskey | grep status:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 19590

Casey


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