cannot resolve one address, others fine

[Mark.Andrews at nominum.com]

	Well your server has the correct glue to talk to these servers.

	The next thing I would be doing is looking at packet traces to
	verify that the queries are going out and that you are getting
	answers back.  Potentially hand decoding the responses.

	Also you will find that dig is a better tool for looking at
	problems in the DNS.

	Mark
> 
> 
>     For the past few days I've been dealing with a most perplexing
> problem.  An otherwise fully functional nameserver on my
> network (128.122.244.5) cannot resolve the address for
> www.datek.com.  What makes this more troubling is that I can resolve
> the name using other networks' dns machines.
> 
>     More perplexing is that I _am_ able, with nslookup, to connect to
> and resolve the names of datek.com's nameservers.  And querying those
> directly I can resolve the name.  This, plus the fact that I can
> access the website if I use an IP address, lead me to believe that we
> have not somehow been blocked intentionally.
> 
>      My next thought was that something poisoned the cache of my ns,
> but I've cleared it, and also killed/restarted named, to no avail.  I
> fear that I'm missing something obvious here, but I am at a loss to
> explain it.  Any help is appreciated.  If I can provide more info,
> please let me know.  Thanks!
> 
> % nslookup
> Default Server:  mcrc22.med.nyu.edu
> Address:  128.122.244.5
> 
> > datek.com
> Server:  mcrc22.med.nyu.edu
> Address:  128.122.244.5
> 
> *** mcrc22.med.nyu.edu can't find datek.com: Non-existent host/domain
> > ns.datek.com
> Server:  mcrc22.med.nyu.edu
> Address:  128.122.244.5
> 
> Non-authoritative answer:
> Name:    ns.datek.com
> Address:  209.3.82.11
> 
> > server 209.3.82.11
> Default Server:  ns.hrld.com
> Address:  209.3.82.11
> 
> > datek.com
> Server:  ns.hrld.com
> Address:  209.3.82.11
> 
> Name:    datek.com
> Addresses:  209.191.156.89, 209.191.132.6
> 
> >
> 
>                                                      - Jeff
> 
> --
> Jeff Berliner
> jeff at popmail.med.nyu.edu
> Information Technology,                         Phone: (212) 263-2501
> New York University School of Medicine  Fax:   (212) 263-8542
> 
--
Mark Andrews, Nominum Inc.
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at nominum.com