Re: NetworkCredentials & Authentication Modules for WebProxy consumption

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From: E. Apapados (eapapa_at_hotmail.com)
Date: 06/25/04


Date: Fri, 25 Jun 2004 17:38:26 GMT

Mike thank you for your reply.

Your postings were the starting point to my investigation and as a matter of
fact I was about to contact you myself.

Our application has been deployed to several sites where the http proxy of
choice is MS ISA 2000 and all my testing are based on this product.

As you point out, following the 'trick' of assigning the credentials to the
httpWebRequest object does the job.
However in my experience this only works if the authentication method
required by the proxy is 'Basic' (Base64) and only 'Basic'.

ISA 2000 also supports 'Digest' and 'Integrated' (Former NTLM and Kerberos)
and so far I had no lack with those.

The proxies that you are using (Raptor & Proxy+) do they support these
types? and if so, have you managed to successfully authenticate requests
under these types?

Furthermore by enumerating the AuthenticationManager.RegisteredModules CF
SP2 states that both 'Basic' and 'Digest' are supported but so far 'Digest'
credentials do not seem to get authenticated on the ISA.

Once again thank you for your reply and I hope that someone from Microsoft
will comment soon.



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