How to configure the Web Proxy clients to use Kerberos to authenticate with the Web Proxy service

Question #836

I notice that when my Web Proxy clients authenticate with the ISA Server using integrated authentication, that NTLM is used, and not Kerberos. I want to use Kerberos. How to I configure the Web Proxy clients to use Kerberos to authenticate with the Web Proxy service?

Answer

You can’t use Kerberos to authenticate a Web Proxy client with the Web Proxy service. Internet Explorer doesn’t support it. IE does not support Kerberos authentication and Microsoft says this is by design. Check out the details at http://support.microsoft.com/search/preview.aspx?scid=kb;en-us;Q321728 [This FAQ contributed by Tom Shinder]

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