Sorry for my last reply, I was too dump.. Lightning authenticates during its startup. Updateing the calendar has nothing to do with authentication I can confirm now that lightning works with the http in lower case. My keytab contains both versions now. I guess thats why my lightning- clint gets the HTTP Ticket in captial letters and my iCal client in lower letters Thanks a lot Georg Am 17.02.2009 um 09:01 schrieb Georg Troska:

Hi Guido, I can confirm that the authentication with iCal works now! Nevertheless I have still problems to get lightning running with kerberos access. I can add the calendar, but have no chance in adding events or looking into the added calendar. I'm not even ask for a password independent from having a ticket or not.

Any idea how to enable kerberos auth in lightning?

Thanks Georg

Am 13.02.2009 um 11:33 schrieb Guido Günther:

...

On Tue, Jan 06, 2009 at 06:56:54PM +0100, Georg Troska wrote:

...

Dear Guido,

I enabled Kerberos: in caldavd.plist:

--- <!-- Kerberos/SPNEGO --> <key>Kerberos</key> <dict> <key>Enabled</key> <true/> <key>ServicePrincipal</key>

<string>HTTP/server07.e4.physik.uni-dortmund.de@E4.PHYSIK.UNI-DORTMUND.DE </string> </dict> It seems iCal wants a lowercase "http" as the kerberos principal: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=514931 Cheers, -- Guido

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Georg Troska Experimentelle Physik IV TU Dortmund +49 231 755 3501