Kerberos for Windows 2.6.5 ccname FILE: issues

Jeffrey Altman jaltman2 at nyc.rr.com
Mon Aug 22 12:01:13 EDT 2005


I can replicate the problem but don't see anything obviously wrong.
Please send a bug report to kfw-bugs at mit.edu

Jeffrey Altman


Hughes, Noah L [ECSS] wrote:

> Jeffrey,
> 
> You are right, kdestroy.exe works with the FILE:c:\temp\krbcache.  The
> reason I had trouble was that the destroy function in Leash32 locked the
> file and went into the 99% CPU usage. 
> 
> The kdestroy.exe error was from Leash32 locking the file.
> 
> It appears that Leash32 is the program that has problems with destorying
> the FILE:c:\temp\krbcache ticket.
> 
> 
> -----Original Message-----
> From:	kerberos-bounces at MIT.EDU on behalf of Jeffrey Altman
> Sent:	Fri 7/15/2005 4:44 PM
> To:	kerberos at MIT.EDU
> Cc:	
> Subject:	Re: Kerberos for Windows 2.6.5 ccname FILE: issues
> Noah:
> 
> Can you provide any additional information that might be used to
> replicate the problem?
> 
> I'm using Windows XP SP2:
> 
> [C:\src\openafs\openafs-cvs\src\WINNT\afsd]set
> KRB5CCNAME=FILE:c:\temp\krbcache
> 
> [C:\src\openafs\openafs-cvs\src\WINNT\afsd]kinit jaltman at ATHENA.MIT.EDU
> Password for jaltman at ATHENA.MIT.EDU:
> 
> [C:\src\openafs\openafs-cvs\src\WINNT\afsd]kvno
> afs/athena.mit.edu at ATHENA.MIT.EDU
> afs/athena.mit.edu at ATHENA.MIT.EDU: kvno = 3
> 
> [C:\src\openafs\openafs-cvs\src\WINNT\afsd]klist
> Ticket cache: FILE:c:\temp\krbcache
> Default principal: jaltman at ATHENA.MIT.EDU
> 
> Valid starting     Expires            Service principal
> 07/15/05 17:42:38  07/16/05 03:42:39
> krbtgt/ATHENA.MIT.EDU at ATHENA.MIT.EDU
> 07/15/05 17:42:55  07/16/05 03:42:39  afs/athena.mit.edu at ATHENA.MIT.EDU
> 
> 
> Kerberos 4 ticket cache: API:krb4cc
> Principal: jaltman at ATHENA.MIT.EDU
> 
>   Issued              Expires             Principal
> 07/15/05 17:37:39  07/16/05 03:42:39
> krbtgt.ATHENA.MIT.EDU at ATHENA.MIT.EDU
> 
> [C:\src\openafs\openafs-cvs\src\WINNT\afsd]kdestroy
> 
> [C:\src\openafs\openafs-cvs\src\WINNT\afsd]klist
> klist.exe: No credentials cache found (ticket cache
> FILE:c:\temp\krbcache)
> 
> 
> Kerberos 4 ticket cache: API:krb4cc
> klist.exe: No ticket file (tf_util)
> 
> Jeffrey Altman
> 
> 
> Noah Hughes wrote:
> 
> 
>>I have found these problems when running Kerberos for Windows 2.6.5:
>>
>>When I use the environment variable %KRB5CCNAME% and set it to
>>"FILE:c:\temp\krbcache" without the quotes it works fine.  Leash is
>>able to create and renew, but uses 100% CPU time when I try to destroy
>>the ticket.
>>
>>Also kdestoy.exe does not destroy the ticket and also fails giving an
>>error message
>>
>>"kdestroy: No credentials cache found while destroying cache"
>>
>>When I use the registry key 
>>"HKEY_LOCAL_MACHINE\SOFTWARE\MIT\kerberos5,cnname" to
>>"FILE:c:\temp\krbcache"
>>
>>Again Leash is able to create and renew, but it uses 100% CPU when you
>>try to destroy the ticket.  However, kdestroy is able to destory the
>>ticket using this method.
>>
>>Is there any way to get Leash to destory this ticket when using the
>>FILE:c:\temp\krbcache?
>>
>>Thanks
>>
>>Noah Hughes
>>
>>________________________________________________
>>Kerberos mailing list           Kerberos at mit.edu
>>https://mailman.mit.edu/mailman/listinfo/kerberos
>>
> 
> 

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