Directory Services (UNIX & NT)

I am doing research about NT and UNIX.  I was wondering how NT and UNIX access directory services?(User lists and password lists)  Is there a way that there could be a master list that the two could share and how does/would that work?  Send me mail at joemd@sequent.com.  Another thing, how do applications access user/password lists?  Please be clear and indepth in your answers.
cdrexAsked:
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jlmsCommented:
Hello:

Most Unixes use NIS, it is a service that provides lists not only off users and passwords but also off hosts, and other related UNIX lists. I am not an NT expert, but for what I have read I conclude that the user and passwrod lists are kept in the server of an NT network.

In UNIX you have a series of libraries that define the API to read these lists, check for books about NIS ans NIS programming.

If you are going to work with Solaris then you need to know also about NIS+, it is similar to NIS but with added security and a jerarquical organization. You don't have to modify applications to use NIS or NIS+ because tha API defines the calls you shoul make to the OS and the OS uses the right service.
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cdrexAuthor Commented:
Thanks for your response but the question really wasn't answered.  Part of it was answered, but the most important part wasn't.  I need to know about a master list possibility in a heterogenous environment of UNIX/NT.
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jlmsCommented:
You will have to get a third party product for the Unix system or for the NT system to make a homogenous common directory service, Unix does not support in general the NT standards and MS is infamous for making their own protocols even if they don't work with any other kind of system.

Samba is a UNIX product (free with source code) that lets you connect NT machines to UNIX boxes, it has to handle security issues so it could be an start point.
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