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Bob - 26 Oct 2005 03:36 GMT

Hi,

I have an application that wants to implement its own security model on its
own objects.
I have a list of usernames that have access to the internal object.
From the username, I can perfrom a lookup in Active Directory of the user
object.
What I want to do now is get the domain name of the user. I want the olf
NT4-style netbios name of the domain, not the low-level part of the DNS name
of the domain.

why?
because "development.abc.com" and "development.xyz.com" are both in my
forest, but one is called "abcdev" and the other "xyzdev". It is the latter
names that I am interested in.

TIA

Bob

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Alun Jones - 26 Oct 2005 04:01 GMT

> I have an application that wants to implement its own security model on
> its own objects.
[quoted text clipped - 6 lines]
>
> why?

Because it's the canonical format for user identifiers in a domain
environment, that's why.

You can identify a user with a UPN or with domain\user in modern versions of
Windows, or as domain\user in older versions (NT 4.0 and before, IIRC).

So, it makes some sense to use domain\user format.

In Win32 API, you'd use CrackSingleName.

In .NET, you can use WindowsIdentity, which takes a UPN string argument in
its constructor, and has a Name() member to return the domain\user format.

What are you waiting for?

Alun.
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Joe Kaplan (MVP - ADSI) - 26 Oct 2005 12:45 GMT

I suggest doing a p/invoke to the Windows TranslateName API.

Joe K.

> Hi,
>
[quoted text clipped - 15 lines]
>
> Bob

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