The warning occurs because your SharePoint server's IIS is configured in "Negotiate" mode, and the first thing it is configured to try is Kerberos. The warning is output by HttpClient because it is capable of using Kerberos provided it has tickets. But since there are no tickets, it will usually fail back to NTLM, which is what the SharePoint connector typically uses anyway.
If you want to get rid of the warning, there may be a way to do this in HttpClient but I don't know of it. You can also certainly (if you have access and don't mind) change your IIS settings from "Negotiate" to just plain "NTLM" and that will work. Karl On Wed, May 15, 2013 at 2:53 AM, Matthew Sheppard <[email protected]>wrote: > Hi all, > > I have a SharePoint 2007 output connector (configured with an Active > Directory authority) and a job forwarding the content on to a search engine > output connector, all of which seems to be working correctly. > > Unfortunately, when running the job I see the the following message many > times in the manifoldcf.log file. > > WARN 2013-05-15 16:12:22,402 (Thread-89532) - NEGOTIATE authentication > error: No valid credentials provided (Mechanism level: No valid credentials > provided (Mechanism level: Failed to find any Kerberos tgt)) > > Can anyone point me in the right direction in terms of fixing whatever the > warning here is about? > > Many thanks, > Matt Sheppard >
