Hi Birgit,
> Feb 5 12:31:43 st39ldap01 ns-slapd: pam_krb5[12937]:
authentication
> fails for 'k.thormann' (k.thormann(a)ST.REDCROSS.OR.AT): Authentication
> failure (Looping detected inside krb5_get_in_tkt)
Is there anything in the KDC logs?
Regards
Johannes