glue record question

[Barry Margolin]

In article <9jkduc$lab at pub3.rc.vix.com>,
Joel Uckelman  <uckelman at ameritech.net> wrote:
>
>Quoth Marc Storck:
>> yes you can only use ONE SINGLE name per IP for glue records!!!
>> 
>> ns.example.foo. IN A 192.0.0.1 ns.example.foo OR ns.example.bar
>> 
>> you have to choose one name!!!!
>
>Why, though? If the A records are held by root servers for two different 
>TLDs, what sort of problem does this cause?

If both TLDs are gTLDs for which NSI is operating the registry, the problem
is with NSI's database design.  For Host records, the IP address is
designated as a unique key, so you can't have two entries with the same
address.  At one time there was an "Aliases" field in the record that
allowed alternate names to be listed, and they'd generate glue records for
both, but I they stopped allowing them several years ago.

-- 
Barry Margolin, barmar at genuity.net
Genuity, Woburn, MA
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