OT: change NT login procedure

James Sutherland jas88 at cam.ac.uk
Wed Jan 31 09:13:14 GMT 2001

On Wed, 31 Jan 2001, Osama Abu-Aish wrote:

> Hi out there,
> this is somehow OT, but I thought to find the most competent
> people my idea here:
> Background:
> Since NT-UNIX password / account synchronization is a never
> ending story with many traps I had an idea and wonder if anybody
> has tried this before and could probably help me by sharing
> his/her knowledge.
> Since NT and UNIX use different security models, it is impossible
> to integrate both into one central security database. Samba is
> to a certain degree able to provide authentication to NT, but
> it can't resolve the problem of having two password databases.
> Idea:
> All current implementations try to adapt the UNIX-side to match
> the requirements given by NT. Now I wonder if it shouldn't be
> possible to change the NT-side. What I'm dreaming of is all
> our NT WKS authenticating against a LDAP-Server.
> This _must_ somehow be possible since novell manages it
> with their NDS directory.
> What I understand from MS documentation is that custom
> authentication is supported and that two dll's must be created:
> a graphical user interface (GINA) and a authentication package.
> Questions:
> 1.) Does this make sense at all or is it only YASI (Yet another
>      stupid idea :-)?
> 2.) Has anybody tried something like this and could provide me
>      with any information?
> 3.) Would someone be interested in following this track?
> Greetings, Osama

Try NISGINA, here:



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