>>>>> "Markus" == Markus Jung <Markus.Jung@de.tds-global.com> writes: Markus> kinit(v5): Client not found in Kerberos database while Markus> getting initial credentials You're missing the ldap service principal for the LDAP server... Create a 'ldap/FQDN_OF_LDAP_SERVER@YOUR_REALM' in the Kerberos db.