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From "Oleg Kalnichevski (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HTTPCLIENT-1139) NTLM Authentication No Longer Working In Latest Release
Date Mon, 24 Oct 2011 17:15:32 GMT

    [ https://issues.apache.org/jira/browse/HTTPCLIENT-1139?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13134256#comment-13134256

Oleg Kalnichevski commented on HTTPCLIENT-1139:

I suspect authentication fails because the server also sends a SPNEGO/kerberos challenge,
which takes precedence over NTLM. If the SPNEGO auth scheme fails NTLM authentication is not
attempted due to HTTPCLIENT-1107.

Anyway, please attach wire / context logs of both sessions (successful with 4.0.3 and unsuccessful
with 4.1.2).

> NTLM Authentication No Longer Working In Latest Release
> -------------------------------------------------------
>                 Key: HTTPCLIENT-1139
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1139
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: HttpClient
>    Affects Versions: 4.1.2
>         Environment: testing on Windows x64, using SharePoint 2010 as a test server that
accepts NTLM auth
>            Reporter: Jeff Nadler
>             Fix For: 4.1.3
> Our application has been working fine using NTLM auth with HttpClient for 3 years.  
We were most recently on 4.0.3.    Upon upgrading to 4.1.2, NTLM stopped working.
> I tried both the new for 4.1 built-in NTLM and the "old way" of using JCIFS: client.getAuthSchemes().register("ntlm",
new NTLMSchemeFactory()); 
> Using wireshark I can see that NTLM auth is not even attempted using 4.1.2.    Rolling
back to 4.0.3 immediately resolved this problem.

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