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From "Karl Wright (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HTTPCLIENT-1266) Flag issues in NTLM implementation prevent authentication on some servers
Date Wed, 05 Dec 2012 08:34:58 GMT

    [ https://issues.apache.org/jira/browse/HTTPCLIENT-1266?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13510359#comment-13510359
] 

Karl Wright commented on HTTPCLIENT-1266:
-----------------------------------------

I should also mention that this has an excellent chance of fixing HTTPCLIENT-1080 and HTTPCLIENT-1040,
although I do not have the means of testing all configurations here.
                
> 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
>             Fix For: Future
>
>         Attachments: HTTPCLIENT-1266.patch
>
>
> 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 mcf 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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