Does anyone know what produces this error ? Everything seems to work o.k. , but this has introduced itself when the first windows 2008 PDC was installed. net ads join createupn=nfs/hostname.company.net at COMPANY.NET -U superuser Enter superuser's password: Using short domain name -- DOMAIN Joined 'HOSTNAME' to realm 'company.net' [2010/06/21 08:47:29, 0] libads/kerberos.c:ads_kinit_password(356) kerberos_kinit_password HOSTNAME$@COMPANY.NET failed: Client not found in Kerberos database Greetings .. Richard