> On 22 Nov 2022, at 17:43, Sumit Bose <[email protected]> wrote:
> 
> Am Tue, Nov 22, 2022 at 03:29:18PM +0100 schrieb Francis Augusto 
> Medeiros-Logeay:
>> 
>> 
>>> On 22 Nov 2022, at 15:22, Sumit Bose <[email protected]> wrote:
>>> 
>>> Am Tue, Nov 22, 2022 at 02:21:13PM +0100 schrieb Francis Augusto 
>>> Medeiros-Logeay:
>>>> Hi,
>>>> 
>>>> After the latest updates coming from Red Hat on RHEL 8.7, we can't
>>>> authenticate on AD. The logs show this:
>>>> 
>>>> Nov 22 14:15:53 ic-rhel8-t001.c.domain.no sshd[6275]: pam_sss(sshd:auth):
>>>> received for user ec-franciaa: 4 (System error)
>>>> Nov 22 14:15:55 ic-rhel8-t001.c.domain.no sshd[6275]: Failed password for
>>>> ec-franciaa from ::1 port 51406 ssh2
>>>> Nov 22 14:15:55 ic-rhel8-t001.c.domain.no sssd[6280]: tkey query failed:
>>>> GSSAPI error: Major = Unspecified GSS failure.  Minor code may provide more
>>>> information, Minor = Server not found in Kerberos database.
>>>> Nov 22 14:15:55 ic-rhel8-t001.c.domain.no sssd[6280]: tkey query failed:
>>>> GSSAPI error: Major = Unspecified GSS failure.  Minor code may provide more
>>>> information, Minor = Server not found in Kerberos database.
>>>> Nov 22 14:15:55 ic-rhel8-t001.c.domain.no sssd[6284]: tkey query failed:
>>>> GSSAPI error: Major = Unspecified GSS failure.  Minor code may provide more
>>>> information, Minor = Server not found in Kerberos database.
>>>> Nov 22 14:15:55 ic-rhel8-t001.c.domain.no sssd[6284]: tkey query failed:
>>>> GSSAPI error: Major = Unspecified GSS failure.  Minor code may provide more
>>>> information, Minor = Server not found in Kerberos database.
>>>> Nov 22 14:15:55 ic-rhel8-t001.c.domain.no sssd[6288]: tkey query failed:
>>>> GSSAPI error: Major = Unspecified GSS failure.  Minor code may provide more
>>>> information, Minor = Server not found in Kerberos database.
>>>> Nov 22 14:15:55 ic-rhel8-t001.c.domain.no sssd[6288]: tkey query failed:
>>>> GSSAPI error: Major = Unspecified GSS failure.  Minor code may provide more
>>>> information, Minor = Server not found in Kerberos database.
>>>> Nov 22 14:15:56 ic-rhel8-t001.c.domain.no sshd[6275]: Connection closed by
>>>> authenticating user francis ::1 port 51406 [preauth]
>>>> 
>>>> 
>>>> I've deleted the computer account and rejoined the machine to the domain. I
>>>> can check users existence using id, it seems the machine is well joined, 
>>>> but
>>>> somehow authentication doesn't work.
>>>> 
>>>> 
>>>> [domain/DOMAIN.NO]
>>>> id_provider = ad
>>>> auth_provider = ad
>>>> autofs_provider = ad
>>>> chpass_provider = ad
>>>> access_provider = ad
>>>> ldap_id_mapping = false
>>>> ldap_user_principal = nosuchattribute
>>> 
>>> Hi,
>>> 
>>> there is a fair chance that the line above will make the PAC validation
>>> fail which was added in the latest version. Do you really need this
>>> option? If not, please remove it and try again. If it is really needed
>>> adding
>>> 
>>>    krb5_validate = false
>>> 
>>> to the [domain/...] section of sssd.conf and restarting SSSD might help
>>> until a better fix is available. The issue is tracked in
>>> https://bugzilla.redhat.com/show_bug.cgi?id=2144491.
>>> 
>>> HTH
>>> 
>>> bye,
>>> Sumit
>> 
>> 
>> Thanks a lot, Sumit! 
>> 
>> Removing `ldap_user_princilap = nosuchattribute` didn’t work, but adding the 
>> `krb5_validate = false` did.
> 
> Hi,
> 
> would it be possible to send me debug logs with 'debug_level = 9' in the
> [domain/...] and [pac] sections of sssd.conf where neither
> ldap_user_principal nor 'krb5_validate = false' is set?

Thanks a lot, Sumit.
Sending you the log below. But, truth be told, we don’t have a [pac] session 
configured, so I created one just for the debug_level.

(2022-11-22 20:03:21): [be[DOMAIN.NO]] [dp_req_reply_std] (0x1000): [RID#6] DP 
Request [Initgroups #6]: Returning [Success]: 0,0,Success
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [sbus_issue_request_done] (0x0400): 
sssd.dataprovider.getAccountInfo: Success
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [sbus_dispatch] (0x4000): Dispatching.
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [sbus_dispatch] (0x4000): Dispatching.
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [sbus_dispatch] (0x4000): Dispatching.
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [sbus_method_handler] (0x2000): Received 
D-Bus method sssd.dataprovider.pamHandler on /sssd
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [sbus_senders_lookup] (0x2000): Looking 
for identity of sender [sssd.pam]
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [dp_pam_handler_send] (0x0100): Got 
request with the following data
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [pam_print_data] (0x0100): command: 
SSS_PAM_AUTHENTICATE
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [pam_print_data] (0x0100): domain: 
DOMAIN.NO
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [pam_print_data] (0x0100): user: 
[email protected]
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [pam_print_data] (0x0100): service: sshd
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [pam_print_data] (0x0100): tty: ssh
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [pam_print_data] (0x0100): ruser: 
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [pam_print_data] (0x0100): rhost: ::1
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [pam_print_data] (0x0100): authtok type: 
1 (Password)
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [pam_print_data] (0x0100): newauthtok 
type: 0 (No authentication token available)
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [pam_print_data] (0x0100): priv: 1
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [pam_print_data] (0x0100): cli_pid: 13919
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [pam_print_data] (0x0100): child_pid: 0
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [pam_print_data] (0x0100): logon name: 
not set
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [pam_print_data] (0x0100): flags: 0
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [dp_attach_req] (0x0400): [RID#7] DP 
Request [PAM Authenticate #7]: REQ_TRACE: New request. [sssd.pam CID #1] Flags 
[0000].
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [dp_attach_req] (0x0400): [RID#7] Number 
of active DP request: 1
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [sss_domain_get_state] (0x1000): [RID#7] 
Domain DOMAIN.NO is Active
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [krb5_auth_queue_send] (0x1000): [RID#7] 
Wait queue of user [[email protected]] is empty, running request 
[0x5649c3a4b960] immediately.
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [krb5_setup] (0x4000): [RID#7] No 
mapping for: [email protected]
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [krb5_auth_send] (0x0040): [RID#7] 
compare_principal_realm failed.
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [check_wait_queue] (0x1000): [RID#7] 
Wait queue for user [[email protected]] is empty.
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [krb5_auth_queue_done] (0x0040): [RID#7] 
krb5_auth_recv failed with: 22
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [dp_req_done] (0x0400): [RID#7] DP 
Request [PAM Authenticate #7]: Request handler finished [0]: Success
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [dp_req_done] (0x20000): [RID#7] DP 
Request [PAM Authenticate #7]: Handling request took [0.101] milliseconds.
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [_dp_req_recv] (0x0400): [RID#7] DP 
Request [PAM Authenticate #7]: Receiving request data.
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [dp_req_destructor] (0x0400): [RID#7] DP 
Request [PAM Authenticate #7]: Request removed.
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [dp_req_destructor] (0x0400): [RID#7] 
Number of active DP request: 0
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [dp_method_enabled] (0x0400): [RID#7] 
Target selinux is not configured
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [sbus_issue_request_done] (0x0400): 
sssd.dataprovider.pamHandler: Success
(2022-11-22 20:03:21): [be[DOMAIN.NO]] [sbus_dispatch] (0x4000): Dispatching.



> 
>> 
>> Is there an upcoming fix coming for this, by any chance?
> 
> Yes, please watch the bugzilla ticket.

Will do so. Thanks!

Francis
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