SSO mit Apache an Windows Server

[Tue Jan 08 14:02:32 2013] [error] [client 192.168.205.201] gss_acquire_cred() failed: Unspecified GSS failure.  Minor code may provide more information (, Unknown error)
[Tue Jan 08 14:02:33 2013] [error] [client 192.168.205.201] gss_acquire_cred() failed: Unspecified GSS failure.  Minor code may provide more information (, Unknown error)

ktpass.exe -princ HTTP/websvn.domäne.at@DOMÄNE.AT -mapuser server@DOMÄNE.AT -crypto rc4-hmac-nt -ptype KRB5_NT_SRV_HST -pass PASSWORD -out C:\keytab

kinit -k -t /keytab HTTP/websvn.domäne.at@DOMÄNE.AT

[libdefaults]
        default_realm = DOMÄNE.AT
        kdc_timesync = 1
        ccache_type = 4
        forwardable = true
        proxiable = true
        fcc-mit-ticketflags = true
        default_keytabe_name = FILE:/etc/krb5.keytab

[realms]
        domäne.at = {
                kdc = WinSrv01.domäne.at
                master_kdc = WinSrv01.domäne.at
                admin_server = WinSrv01.domäne.at
                default_domain = domäne.at
 }

[domain_realm]
        .domäne.at = DOMÄNE.AT
        domäne.at = DOMÄNE.AT

NameVirtualHost *:80
<VirtualHost *:80>
        DocumentRoot /websvn
        ServerName websvn.domäne.at
        ServerAlias websvn
</VirtualHost>

<Location /websvn>
        AuthType Kerberos
        AuthName "Krb5 Auth"  
        KrbServiceName HTTP
        KrbVerifyKDC On
        Krb5Keytab /etc/krb5.keytab
        KrbAuthRealms DOMÄNE.AT
        KrbServiceName HTTP/LinSrv01.domäne.at
        KrbMethodNegotiate on
        KrbMethodK5Passwd on
        require valid-user
</Location>