Re: IIS Web Service 401 Error with Integrated Windows Authenticati
From: DownUnder (DownUnder_at_discussions.microsoft.com)
Date: 08/19/04
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Date: Wed, 18 Aug 2004 16:55:01 -0700
I think I now know the reason why I was led to think that the credentials
are passed automatically:
It is the "impersonation" setting that I was using (on the server side). I
thought when that setting was used in the web.config file, the credentials
from the client were passed automatically somehow. I was wrong...they need to
be set on the client explicitly as the following KB article states.
"http://support.microsoft.com/default.aspx?scid=kb;EN-US;811318"
"DownUnder" wrote:
>
> Thanks for the reply, Michael. The problem is not definitely related to the
> webserver name since the problem happens when the authentication type is
> changed (everything else being the same).
>
> My internet search today has given me some clue. It looks like I need to set
> the "Credentials" for the service programmatically to "DefaultCredentials" in
> the client code.
>
> I donot know much about that topic and I am not sure why this is not done
> automatically. I am also surprised to learn that it needs to be done in the
> client programmatically. I have tried it and it seems to solve the problem I
> had. However, I need to find out and learn more about the topic.
>
> Regards,
>
> DownUnder.
>
>
>
>
>
> "Raterus" wrote:
>
> > Are you using a fully-qualified domain name for the webserver? If so you might want to check out this article about setting the SPN's
> >
> > http://support.microsoft.com/default.aspx?kbid=294382
> >
> > --Michael
> >
> > "DownUnder" <DownUnder@discussions.microsoft.com> wrote in message news:F66965B4-1B93-4264-90F2-C90CE6B62467@microsoft.com...
> > >
> > > Hi,
> > >
> > > I have 401 Error when I try to invoke an ASP Web Service through a client if
> > > Windows Authentication is used.
> > >
> > > To identify the reason, I built a simple "Hellow World" Web Service that I
> > > can successfully invoke using IE (regardless of the authentication type
> > > configured in IIS).
> > >
> > > I can invoke the same Web Service by another client successfully if the
> > > authentication type is Anonymous (regardless of the actual user who it runs
> > > under).
> > >
> > > However, if the Integrated Windows Authentication is ticked, invoking the
> > > service fails (even for the users configured for Anonymous access).
> > >
> > > I tried it on XP Professional and IIS 6. (However, I have the same result on
> > > Win2K3.)
> > >
> > > Help is very much appreciated.
> > >
> > > DownUnder.
> > >
> >
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