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From Karl Wright <>
Subject Re: Kerberos warning
Date Tue, 05 Nov 2013 01:41:16 GMT
Hi Mark,

This warning comes from HttpComponents HttpClient.  It occurs because the
system you are communicating with has "negotiate" set.  It's therefore
trying first to find a Kerberos ticket, and failing that, falling back to

There are two ways to fix this.  First is to find out how to disable the
warning in HttpClient.  Second is to change the configuration of the target
system's IIS from "Negotiate" to just plain "NTLM".  I wish I knew how to
do the former; I suspect there's a way to do if you just google the message.


On Mon, Nov 4, 2013 at 8:29 PM, Mark Libucha <> wrote:

> Hi,
> Anyway to eliminate this from my logs?
> NEGOTIATE authentication error: No valid credentials provided (Mechanism
> level: No valid credentials provided (Mechanism level: Failed to find any
> Kerberos tgt))
> I'm using an Active Directory authority with NTLM, which succeeds.
> Not a big deal, but it would cut down on the size of the logs if there was
> a way to specify not to try Kerberos? Is there?
> Thanks,
> Mark

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