>Ok.. so if I am following this the domain academy.edu
>(http://www.dnsreport.com/tools/dnsreport.ch?domain=academy.edu) means
>that the top level dns servers do not have the proper records to supply
>both the ns and A records. They are supplying the ns record but not the
>A record?
That is correct. If you run nslookup, type "set type=ns", then "root",
then "academy.edu", you'll notice the answer doesn't contain any IP
addresses. Try a couple of other .edu's and you'll see that they do have
IP addresses (the glue).
>And in this case ATT does not have the record properly set up
>for the client? Not quite sure who to tell the customer to yell at, ATT
>or the gods that administer the top level dns servers.
I'm not sure either. The "DNS gods" are the ones that are actually
returning the record without the IP addresses, but it's possible that AT&T
could be partially responsible too (if they figured out a way to supply the
root servers with the NS hostname but not the IP).
This is a very obscure area of DNS that isn't well understood. It may be
best to save a lot of time and just accept the glueless entry. It would be
quite interesting, though, to know how a domain could make it to root
without glue.
-Scott
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