using LDAP for tnsnames.ora repalcement

I've done a Metalink and a Google search and I am just not getting the
traction on this question.  I want to investigate using LDAP to replace
pushing all those tnsnames.ora files around.  I am on 9i and we have
Unix and MS Windows clients.  (db''s on Unix)  I've read the docs
(Oracle 9i Net Services Administraror's Guide etc.) and searched
Metalink ( 217270.1 )  and otn
(http://www.oracle.com/technology/products/oid/htdocs/namesmigration1.ht
ml, http://download-west.oracle.com/oowsf2004/1457_wp.pdf)  etc. and it
seems like you can't just use LDAP, but have to create YAOD (yet another
Oracle Database) and use Oracle Internet Directory.  That's great if I
want to buy and configure more Oracle stuff, but really I just want to
piggy back on our current LDAP servers.  I don't want to fight the
political battle of adding yet another LDAP server to the islands of
data.
 
Anyone have a link to a white paper or more info? I'm looking for a
simple step by step brain dead example.   eg I want to use the ldap
server on my desktop, add info to it and have it work as a small POC.
 
Thanks,
Jim

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