RE: How to enable IWA over multiple servers



Hello Dan,

From your description, you have an ASP.NET application that use integrated
windows authentication to authenticate the client users(domain accounts),
you found that the application can gain client domain identity correctly
when the ASP.NET app is hosted on a DC ,but not correctly when hosted on a
normal webserver in the domain(intranet), correct?

Based on my experience, the problem behavior you met is likely due to the
logon user account you used to visit the web application and from which
machine you're performing the test. Are you testing the application(visit
the certain web page in the ASP.NET application) on the local machine(of
the webserver)? If so, are you logon through a local account on the
webserver rather than a domain user account?

When you try visiting a web application in IIS protected by integrated
windows authentication, the IE browser will send the current client logon
user identity to server(for intranet scenario) so that the IIS server can
get it. If you're visting the web app on local machine(the webserver), the
current logon session is directly used. If you logon through a local
account such as "web server machine\localuser", then, the IIS server will
certainly get the "web server machine\localuser" (rather than domain
account). On DC box, it is a bit particular because all the accounts on DC
are domain accounts(there is no local account on DC box), so even if you
logon DC through a "localuser" account, it is treated as
"domainname\localuser".

Therefore, for your scenario, I suggest you try testing on remote client
(logon through a domain account) and visit the web application and see the
behavior. I think the integrated windows authentication should work as
expect to get the domain user identity.

If you have anything unclear on this or any other questions, please feel
free to post here.

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead



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