"Unexpected result from ldap: Inappropriate authentication(48), Anonymous access is not allowed." が sssd_default.log で表示される原因

Issue

• "Unexpected result from ldap: Inappropriate authentication(48), Anonymous access is not allowed." が、sssd_default.log で表示されるのはなぜですか?

(2021-10-29 17:45:54): [be[default]] [sdap_get_generic_op_finished] (0x0040): Unexpected result from ldap: Inappropriate authentication(48), Anonymous access is not allowed.
(2021-10-29 17:45:54): [be[default]] [generic_ext_search_handler] (0x0040): sdap_get_generic_ext_recv failed [5]: Input/output error

バインドの詳細は、[domain/default] セクションで以下のように指定されます。

ldap_default_bind_dn = uid=binduser,ou=users,dc=example,dc=com
ldap_default_authtok_type = password
ldap_default_authtok = <YourPassword>