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Samba to Kerberos via OpenLDAP

Thanks for all  your advice so far.

First, I'll just say this is a question principally about the arcane mysteries of Samba to OpenLDAP authentication. 

I've had Samba to OpenLDAP authentication running for a while now using the samba.schema and the ldapsam module.  Now I'd like to understand a bit more about how that works in order to take it a step further and get openLDAP to bind against a Kerberos database via SASL.

An aside;  Yes, I'd heard that Samba can be configured to authenticate against Kerberos directly, but for my own reasons, I'd prefer that Samba talk only to OpenLDAP, and OpenLDAP can do the authentication.  I'll fall back on the Samba to Kerberos direct route if I can't find a way to do what I want.

I've noted that the Samba schema and smbldap-tools add to the user record two Samba specific password fields, 
sambaNTPassword and sambaLMPassword. 

If I have the ldapsam module specified as the passdb backend in smb.conf, is OpenLDAP merely storing the samba passwords while Samba does the password comparisons?  Or does OpenLDAP do the authentication and return a yes or no?

Is it possible to have Samba defer authentication to OpenLDAP?  If so, I can have OpenLDAP use the {SASL} method to do authentication via kerberos.



Wes Modes
Server Administrator & Programmer Analyst
McHenry Library
Computing & Network Services
Information and Technology Services