Hello Arnaud,

IE only uses the SPNEGO/NTLM handshake to servers which are in the
intranet zone.

You could specify a DNS name which are seen as "foreign".

Regards,
Heinz

On Wed, Jul 29, 2009 at 11:51, Arnaud Claden<[email protected]> wrote:
> Hello everyone,
>
> I have a little problem with my implementation of CAS.
>
> I have tested the Active Directory SSO with SPNEGO : it works like a charm.
> I have tested the fallback to LDAP : it works like a charm.
>
> The problem I have is the following :
>
> Some workstations are in offshore offices, which means they are not connected 
> to the Active Directory. For them, the LDAP fallback is the solution. 
> However, when Internet Explorer browses to a site with SSO, it displays a 
> domain logon window.
> This is natural as these workstations have no security option configured (and 
> they are not intended to have these modifications).
>
> Is there a way to prevent this from happening ?
>
> If there is none, we are implementing another CAS server for these cases (a 
> server only validating on LDAP), but how can I have it work right, as the web 
> applications are only configured for one CAS server, and not two. Is there a 
> way to check the browser's IP address and, depending on it, sending auth to 
> SPNEGO or to LDAP ?
>
> Thanks in advance for your answers.
>
> A. Claden
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