Thank you for the explanation. I understand.

> 2024/04/29 22:45、Sumit Bose <[email protected]>のメール:
> 
> Am Mon, Apr 29, 2024 at 09:12:08PM +0900 schrieb [email protected] 
> <mailto:[email protected]>:
>> Hi,
>> 
>> Thank you for your quick response. Yes, that was the reason. In this regard, 
>> let me allow to add the following question. 
>> 
>> Is there any way to remove objectClass from the filter, such as to be 
>> (uid=hogehoge) but not (&(uid=hogehoge)(objectclass=inetOrgPerson)) as in 
>> the failure case?
>> 
>> Even though I tried to remove the objectclass filter in sssd.conf, I 
>> couldn’t.
>> Removing “ldap_user_object_class" statement in [domain/local] automatically 
>> gives the following:
>> (&(uid=hogehoge)(objectclass=posixAccount))
>> (as mentioned before, posixAccount is not used in the LDAP database.)
>> Or, is the declaration of objectclass mandatory in the filter?
>> I would greatly appreciate any assistance.
> 
> Hi,
> 
> SSSD will always use an objectclass in the filter to make sure that
> only the expected type of objects are returned.
> 
> HTH
> 
> bye,
> Sumit
> 
>> 
>>> 2024/04/29 19:55、Sumit Bose <[email protected]>のメール:
>>> 
>>> Hi,
>>> 
>>> my first guess would be that the `uid=search_id` object does not have
>>> the permissions to read the `objectClass` attribute from other objects.
>>> Please check the ACIs on the LDAP server side for this user.
>>> 
>>> HTH
>>> 
>>> bye,
>>> Sumit
>>> 
>>>> This initial search binding works fine and returns the user DN to log in, 
>>>> for example,
>>>> uid=hogehoge,ou=staff,ou=Users,dc=example,dc=com
>>>> 
>>>> However, as shown below, the user (hogehoge) cannot be authenticated.
>>>> /var/log/sssd/sssd_local.log
>>>> (2024-04-28 21:57:11): [be[local]] [sdap_call_op_callback] (0x20000): 
>>>> [RID#2] Handling LDAP operation [3][server: [xxx.xx.xx.x:636] filter: 
>>>> [(&(uid=hogehoge)(objectclass=inetOrgPerson))] base: 
>>>> [ou=Users,dc=example,dc=com]] took [2.910] milliseconds.
>>>> (2024-04-28 21:57:11): [be[local]] [sdap_parse_entry] (0x1000): [RID#2] 
>>>> OriginalDN: [uid=hogehoge,ou=staff,ou=Users,dc=example,dc=com].
>>>> (2024-04-28 21:57:11): [be[local]] [sdap_parse_entry] (0x0020): [RID#2] 
>>>> Unknown entry type, no objectClasses found!
>>>> 
>>>> /var/log/secure
>>>> Apr 28 21:57:11 server sssctl[1635756]: pam_sss(system-auth:auth): 
>>>> authentication failure; logname=dummy uid=0 euid=0 tty= ruser= rhost= 
>>>> user=hogehoge
>>>> Apr 28 21:57:11 server sssctl[1635756]: pam_sss(system-auth:auth): 
>>>> received for user hogehoge: 4 (System error)
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