ipp.gov and Google DNS (8.8.8.8)

Casey Deccio casey at deccio.net
Thu May 30 16:03:37 UTC 2013


On Thu, May 30, 2013 at 8:17 AM, Stephane Bortzmeyer <bortzmeyer at nic.fr> wrote:
> On Thu, May 30, 2013 at 09:04:44AM -0600,
>  Josh Galvez <josh at 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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