My blog had documentation innovation I tell you. I'm on the bleeding
edge. Be careful, or you might get a papercut just reading it.



-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Isenhour,
Joseph
Sent: Friday, March 04, 2005 8:53 PM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] Creating a backlink and forwardlink

 Got it.  I love magical programming features :)  You guys rock! I did a
bunch of googles on this subject and came up with nothing.

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Eric Fleischman
Sent: Friday, March 04, 2005 6:39 PM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] Creating a backlink and forwardlink

I think the question was, the number that I used as my sample linkID, is
that a special numberor should you use your own. The answer is yes, it
is. Use the exact linkID value I used for the creation of the forward
link. That value triggers this special code path which will create link
IDs for you.

Don't think of the linkID value I used as an OID, think of it as
"magical" and special. :)

~Eric



-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of joe
Sent: Friday, March 04, 2005 6:42 PM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] Creating a backlink and forwardlink

Sure, but if you are on Windows 2003 or AD/AM you don't have to. That is
the beauty of this, that OID causes AD to autogenerate a link ID that is
guaranteed unique. The only reasons you should really use linkids you
get from MS anymore is if you do make decisions based on linkid values
(not just the existence of) or you need to use the schema mods on
Windows 2000 AD.
 
BTW, I believe I do recall you from DEC even with my old failing memory.
:oP

  joe 


-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Isenhour,
Joseph
Sent: Friday, March 04, 2005 7:00 PM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] Creating a backlink and forwardlink

One more question about autolinking.

In the example that is shown on the blog you sent, the forward LinkID
appears to be an OID.  Is that correct?  Can I select an OID from my
pool and use it as the LinkID for the forward link?

Thanks Joe

 

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Isenhour,
Joseph
Sent: Friday, March 04, 2005 3:46 PM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] Creating a backlink and forwardlink

Sorry I missed the link to the info in your first message.

Thanks joe 

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Isenhour,
Joseph
Sent: Friday, March 04, 2005 3:32 PM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] Creating a backlink and forwardlink

I do have an OID from Microsoft.  I knew that picking my own LinkID had
to be a bad thing, but I didn't know of any other way to get it.  Can
you expand on autolinking?

Thanks Joe,

BTW this is the Joe that you met at DEC in Virginia.  This is my first
Post!
Thanks for letting me know about this distribution list.

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of joe
Sent: Friday, March 04, 2005 1:38 PM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] Creating a backlink and forwardlink

Small correction, you will register your prefix and OID (or even request
an
OID) from MS and then you can request a linkid pair, DO NOT create your
own linkid values.

Additionally if this is on K3 or AD/AM you can use autolinking and not
use a specific linkid value.

See 

http://blogs.msdn.com/efleis/archive/2004/10/12.aspx

For a writeup. I was talking with Eric one day and he mentioned it and I
was like, "WHAT? No I never heard of that!" so he documented it in his
blog.

  joe
 

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Sakari Kouti
Sent: Friday, March 04, 2005 4:31 PM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] Creating a backlink and forwardlink

Hi Joseph,

I tested this for the purposes of our "Inside Active Directory" book.
 
You should define the linkID attribute for both of your attributeSchema
objects. The forward link must have an even positive non-zero number
(for example, the member attribute has 2) and the back link must have a
larger-by-1 odd value (for example, the memberOf attribute has 3).

A forward-link attribute must use one of the following syntaxes: DN, DN
with Unicode string, DN with binary, access point DN, and OR name. A
back-link attribute must be of syntax DN.

The two linkID numbers must not conflict with any other attributes. You
can find free numbers manually, if just for your own use, or
programmatically, if the installation must work in any forest. The
platform SDK has a sample
C++ code for this.

You must first create the forward link, and then the back link.

The back link must be multivalued (and the forward link may be).

In addition, the platform SDK says that "By convention, back link
attributes are added to the mayContain value of the Top abstract class.
This enables the back link attribute to be read from objects of any
class because they are not actually stored with the object, but are
calculated based on the forward link values."

For production purposes, it might be a good idea to register your link
ID pair with Microsoft at
http://msdn.microsoft.com/certification/ADLinkID.asp

Yours, Sakari


________________________________

        From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Isenhour,
Joseph
        Sent: Friday, March 04, 2005 10:45 PM
        To: ActiveDir@mail.activedir.org
        Subject: [ActiveDir] Creating a backlink and forwardlink
        
        

        I'm trying to figure out how to extend our schema with a
forwardlink attribute and a corresponding backlink attribute. 

        I understand how to create an attribute with a DN syntax and I
even understand how the two are linked in Active Directory.  What I
don't know is what to put in my LDIF to make AD link them.

        Has anyone ever done this? 

        Thanks 

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