Hello,
we have an IIS (Owa) server that redirects to another server using isapi_redirect. Everything works fine for users in the LAN but for users connecting from Internet a windows authentication popup appears when trying to access the redirected server, that ends up in a 401 error even when giving a valid user/password. Using Fiddler we have seen that when doing the redirection the server tries to negotiate an NTLM authentication: No Proxy-Authenticate Header is present. WWW-Authenticate Header is present: Negotiate WWW-Authenticate Header is present: NTLM
The authentication for the isapi connector is set to anonymous and basic.
We have this same configuration working in several places. The only difference we can see is that in this case the servers ( Owa and the one that gets the redirection ) are in dofferent windows domains. Any idea? Thanks,
Jose