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IIS6.0 vs IIS5.1 - Integrated Windows Authentication Issue


I have an application that communicates with the Company's Active
Directory to get the OU of the users.

This said application is an ASP.Net web site and has the Windows
Authentication enabled. [hence removing the need for the users to log
in again on the site].

Now, here's the anomaly:
If the application is run on a Server using IIS 5.1, the application
works like a charm and the communcation with the Active Directory
occurs without any problem.

But if the same application is run on a Server using IIS6.0, the
application becomes unable to communicate with the Active Directory.

I have checked all possible parameter issues:
- The same request is being processed on both machines
- Both have access to the Active Directory [ no rights issues here ]

If I untick the Integrated Windows Authentication in the IIS6.0 Server
and use Basic Authentication, hence forcing the user to Log In, then
the application works well.

Anyone has any ideas if there are any discrepancies in the IIS5.1 and
the IIS6.0 that hinder Active Directory Communication?

Thanks
Luwk

Nov 3 '06 #1
1 2643
Hello Luwk,

I am also going through the same problem. But my case is totally
reverse.

My application works fine, on IIS6 W2K3, but it does'nt authenticate
the user when application runs on IIS5 and W2K.

Awaiting your reply.

Thanks

Banty

Luwk wrote:
I have an application that communicates with the Company's Active
Directory to get the OU of the users.

This said application is an ASP.Net web site and has the Windows
Authentication enabled. [hence removing the need for the users to log
in again on the site].

Now, here's the anomaly:
If the application is run on a Server using IIS 5.1, the application
works like a charm and the communcation with the Active Directory
occurs without any problem.

But if the same application is run on a Server using IIS6.0, the
application becomes unable to communicate with the Active Directory.

I have checked all possible parameter issues:
- The same request is being processed on both machines
- Both have access to the Active Directory [ no rights issues here ]

If I untick the Integrated Windows Authentication in the IIS6.0 Server
and use Basic Authentication, hence forcing the user to Log In, then
the application works well.

Anyone has any ideas if there are any discrepancies in the IIS5.1 and
the IIS6.0 that hinder Active Directory Communication?

Thanks
Luwk
Nov 22 '06 #2

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