KfW requests ticket with wrong SPN

[Michael-O]

Am 2012-09-15 21:19, schrieb Benjamin Kaduk:
> On Sat, 15 Sep 2012, 1983-01-06 at gmx.net wrote:
>
>>> Hi,
>>>
>>>
>>> I have a Kerberos-based SSO system.  The Kerberos realm is
>>> "CORP.EXAMPLE.COM".  Every service has its own domain name, such as
>>> "imap.corp.example.com", "wiki.corp.example.com" and so on.
>>>
>>> Now I can login these services on Debian sid.  But it always fails on
>>> Windows XP.
>>>
>>> I've configured Firefox by setting the following preferences:
>>>
>>>   network.negotiate-auth.trusted-uris = corp.example.com
>>>   network.negotiate-auth.using-native-gsslib = true
>>>   network.auth.use-sspi = false
>>
>> Why did you disable SSPI? This works quite well with Unix-based servers.
>
> Off the top of my head (and my memory may be incorrect), the windows
> SSPI libraries only access credentials in the windows LSA credentials
> store, which is not populated by stock KfW 3.2.

I am aware of that. I just wanted to know why he uses KfW at all and not 
SSPI. KfW is able to access the LSA cache too but this because much more 
of a problem in Windows 7.