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  Kerberos Authentication problems – Service Principal Name (SPN) issues - Part 1
Time: 10:42 EST/15:42 GMT | News Source: Microsoft | Posted By: Kenneth van Surksum

Hi Rob here again. I hope that you found the first blog on troubleshooting Kerberos Authentication problems caused by name resolution informative and learned something about how to review network captures as well as how the SMB protocol works at a high level when reviewing a network trace. This time we are going to focus on problems that arise when Service Principal Names are not configured properly to support Kerberos Authentication. We will use a web site having authentication problems to show you network captures and explain at a high level how the HTTP protocol works. There are other ways to troubleshoot Kerberos; one could just read Kerberos event logging outlined in KB 262177. Although you could rely on this method, it will take a longer to resolve the issue and you will be taking an educated guess without a network trace.

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