Bill et al,
I am sorry. Here is the log.
2011-02-14 14:46:21,955 INFO 
[org.jasig.cas.authentication.AuthenticationManagerImpl] - 
<AuthenticationHandler: 
org.jasig.cas.support.spnego.authentication.handler.support.JCIFSSpnegoAuthenticationHandler
 failed to authenticate the user which provided the following credentials: 
Principal is null>

I shouldn't assume that this information is useless or not required. It didn't 
provide me with much:)
Tom
Go Hoos!

On Feb 14, 2011, at 2:24 PM, William Markmann wrote:

Hey Tom -- first of all, wahoowa!  Second, if you could post an example log 
snippet from an authentication attempt, it might be a little easier to suggest 
where to look for potential solutions... the "Principal is null" message could 
have several different causes.

- Bill


On Mon, Feb 14, 2011 at 2:20 PM, Healey, Thomas 
<[email protected]<mailto:[email protected]>> wrote:
All,
As you may know since Windows 7 came out it has been broken regarding SPNEGO 
and CAS environments running on Windows Server 2003. What used to happen was 
when a authenticated domain user went to an CAS protected site the user would 
be seamlessly authenticated  and forwarded onto the app to be authorized and, 
if authorized, sent to the site. Now I get  "Principal is null" message in the 
CAS logs and the user is forwarded to the CAS login page. I searched the web 
for other instances of this problem but those people who are having problems 
with Windows 7 and CAS/SPNEGO were having a problem with the version of Java 
they were using and they were getting the following in their logs:
"GSSException: Channel binding mismatch (Mechanism level: ChannelBinding not 
provided!)" from https://wiki.jasig.org/display/CASUM/SPNEGO
This is not our problem as we have upgraded the Java version many moons ago. It 
also suggests a MS webpage
http://support.microsoft.com/?scid=kb%3Ben-us%3B968389&x=10&y=18
for further guidance but that didn't help when I tried it.
I have also tried to use Windows Server 2008 but no luck.
Any thoughts or other areas I can look for answers?



--
Bill Markmann

Counterpoint Consulting, Inc.
(p) 571-338-2455
(f) 202-403-3425
(e) [email protected]<mailto:[email protected]>
(w) http://www.counterpointconsulting.com/

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