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From "Karl Wright (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HTTPCLIENT-1266) Flag issues in NTLM implementation prevent authentication on some servers
Date Fri, 30 Nov 2012 17:33:58 GMT
Karl Wright created HTTPCLIENT-1266:
---------------------------------------

             Summary: Flag issues in NTLM implementation prevent authentication on some servers
                 Key: HTTPCLIENT-1266
                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1266
             Project: HttpComponents HttpClient
          Issue Type: Bug
          Components: HttpAuth
    Affects Versions: 4.2.2
            Reporter: Karl Wright


At the ManifoldCF project, we've recently encountered two SharePoint servers (Windows 2008
Server R2) which seem to be configured in a way that the connector cannot authenticate with
them using httpcomponents NTLM.  It's worth noting that cURL succeeds, so the NTLM setup is
apparently reasonable.  Furthermore, the patched version of commons-httpclient also fails
in exactly the same way, so it looks like a long-standing issue.

Working through the problem, it appears that the NTLM flags httpclient sends are, in some
cases, inconsistent with the data we include.  I am working on a httpclient patch, which I
hope to be able to exercise in one of the client situations within the next week or two.

Please see CONNECTORS-572 for details and research results.


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