1、SSSD version:
sssd-common-1.16.5-10.el7_9.12.x86_64
sssd-ldap-1.16.5-10.el7_9.12.x86_64
sssd-ad-1.16.5-10.el7_9.12.x86_64
sssd-client-1.16.5-10.el7_9.12.x86_64
python-sssdconfig-1.16.5-10.el7_9.12.noarch
sssd-krb5-common-1.16.5-10.el7_9.12.x86_64
sssd-ipa-1.16.5-10.el7_9.12.x86_64
sssd-krb5-1.16.5-10.el7_9.12.x86_64
sssd-1.16.5-10.el7_9.12.x86_64
sssd-common-pac-1.16.5-10.el7_9.12.x86_64
sssd-proxy-1.16.5-10.el7_9.12.x86_64
2、 SSSD Configuration
[sssd]
domains = adtest.zly.com
config_file_version = 2
services = nss, pam
[domain/adtest.zly.com]
ad_server = adtest.adtest.zly.com
ad_domain = adtest.zly.com
krb5_realm = ADTEST.ZLY.COM
realmd_tags = manages-system joined-with-adcli
cache_credentials = True
id_provider = ad
krb5_store_password_if_offline = True
default_shell = /bin/bash
ldap_id_mapping = true
use_fully_qualified_names = false
fallback_homedir = /home/%u
access_provider = ad
debug_level=9
ad_gpo_access_control=enforcing
#ad_gpo_access_control=permissive
3、error log
Error in /var/log/secure :
Apr 12 15:28:15 wxvmlinux sshd[3784]: pam_sss(sshd:auth): authentication
success; logname= uid=0 euid=0 tty=ssh ruser= rhost=localhost user=njadmin
Apr 12 15:28:15 wxvmlinux sssd[be[adtest.zly.com]]: Warning: user would have
been denied GPO-based logon access if the ad_gpo_access_control option were set
to enforcing mode.
Apr 12 15:28:15 wxvmlinux sshd[3784]: Accepted password for njadmin from ::1
port 49040 ssh2
Apr 12 15:28:15 wxvmlinux sshd[3784]: pam_unix(sshd:session): session opened
for user njadmin by (uid=0)
Apr 12 15:28:24 wxvmlinux sshd[3836]: Received disconnect from ::1 port
49040:11: disconnected by user
Apr 12 15:28:24 wxvmlinux sshd[3836]: Disconnected from ::1 port 49040
Apr 12 15:28:24 wxvmlinux sshd[3784]: pam_unix(sshd:session): session closed
for user njadmin
Apr 12 15:28:40 wxvmlinux polkitd[547]: Registered Authentication Agent for
unix-process:3889:296012 (system bus name :1.57 [/usr/bin/pkttyagent
--notify-fd 5 --fallback], object path
/org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8)
Apr 12 15:28:41 wxvmlinux polkitd[547]: Unregistered Authentication Agent for
unix-process:3889:296012 (system bus name :1.57, object path
/org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8)
(disconnected from bus)
Apr 12 15:28:46 wxvmlinux sshd[3925]: pam_sss(sshd:auth): authentication
success; logname= uid=0 euid=0 tty=ssh ruser= rhost=localhost user=njadmin
Apr 12 15:28:46 wxvmlinux sshd[3925]: pam_sss(sshd:account): Access denied for
user njadmin: 4 (System error)
Apr 12 15:28:46 wxvmlinux sshd[3925]: Failed password for njadmin from ::1 port
49084 ssh2
Apr 12 15:28:46 wxvmlinux sshd[3925]: fatal: Access denied for user njadmin by
PAM account configuration [preauth]
/var/log/sssd/gpo_child.log
(2022-04-12 15:28:54): [gpo_child[3955]] [main] (0x0400): gpo_child started.
(2022-04-12 15:28:54): [gpo_child[3955]] [main] (0x0400): context initialized
(2022-04-12 15:28:54): [gpo_child[3955]] [unpack_buffer] (0x0400):
cached_gpt_version: -1
(2022-04-12 15:28:54): [gpo_child[3955]] [unpack_buffer] (0x4000): smb_server
length: 27
(2022-04-12 15:28:54): [gpo_child[3955]] [unpack_buffer] (0x4000): smb_server:
smb://adtest.adtest.zly.com
(2022-04-12 15:28:54): [gpo_child[3955]] [unpack_buffer] (0x4000): smb_share
length: 7
(2022-04-12 15:28:54): [gpo_child[3955]] [unpack_buffer] (0x4000): smb_share:
/SysVol
(2022-04-12 15:28:54): [gpo_child[3955]] [unpack_buffer] (0x4000): smb_path
length: 63
(2022-04-12 15:28:54): [gpo_child[3955]] [unpack_buffer] (0x4000): smb_path:
/adtest.zly.com/Policies/{63899852-E3D6-4975-84B6-1B585DE97319}
(2022-04-12 15:28:54): [gpo_child[3955]] [unpack_buffer] (0x4000):
smb_cse_suffix length: 49
(2022-04-12 15:28:54): [gpo_child[3955]] [unpack_buffer] (0x4000):
smb_cse_suffix: /Machine/Microsoft/Windows NT/SecEdit/GptTmpl.inf
(2022-04-12 15:28:54): [gpo_child[3955]] [main] (0x0400): performing smb
operations
(2022-04-12 15:28:54): [gpo_child[3955]] [copy_smb_file_to_gpo_cache] (0x0400):
smb_uri:
smb://adtest.adtest.zly.com/SysVol/adtest.zly.com/Policies/{63899852-E3D6-4975-84B6-1B585DE97319}/GPT.INI
(2022-04-12 15:28:54): [gpo_child[3955]] [copy_smb_file_to_gpo_cache] (0x4000):
smb_buflen: 50
(2022-04-12 15:28:54): [gpo_child[3955]] [prepare_gpo_cache] (0x4000):
smb_path_with_suffix:
/adtest.zly.com/Policies/{63899852-E3D6-4975-84B6-1B585DE97319}/GPT.INI
(2022-04-12 15:28:54): [gpo_child[3955]] [prepare_gpo_cache] (0x0400): Storing
GPOs in /var/lib/sss/gpo_cache/adtest.zly.com
(2022-04-12 15:28:54): [gpo_child[3955]] [prepare_gpo_cache] (0x0400): Storing
GPOs in /var/lib/sss/gpo_cache/adtest.zly.com/Policies
(2022-04-12 15:28:54): [gpo_child[3955]] [prepare_gpo_cache] (0x0400): Storing
GPOs in
/var/lib/sss/gpo_cache/adtest.zly.com/Policies/{63899852-E3D6-4975-84B6-1B585DE97319}
(2022-04-12 15:28:54): [gpo_child[3955]] [unique_filename_destructor] (0x2000):
Unlinking
[/var/lib/sss/gpo_cache/adtest.zly.com/Policies/{63899852-E3D6-4975-84B6-1B585DE97319}/GPT.INIPUsDAW]
(2022-04-12 15:28:54): [gpo_child[3955]] [unlink_dbg] (0x2000): File already
removed:
[/var/lib/sss/gpo_cache/adtest.zly.com/Policies/{63899852-E3D6-4975-84B6-1B585DE97319}/GPT.INIPUsDAW]
(2022-04-12 15:28:54): [gpo_child[3955]] [ad_gpo_parse_ini_file] (0x0400):
ini_filename:/var/lib/sss/gpo_cache/adtest.zly.com/Policies/{63899852-E3D6-4975-84B6-1B585DE97319}/GPT.INI
(2022-04-12 15:28:54): [gpo_child[3955]] [ad_gpo_parse_ini_file] (0x0020):
ini_config_file_open failed [84][Invalid or incomplete multibyte or wide
character]
(2022-04-12 15:28:54): [gpo_child[3955]] [ad_gpo_parse_ini_file] (0x0020):
Error encountered: 84.
(2022-04-12 15:28:54): [gpo_child[3955]] [perform_smb_operations] (0x0020):
Cannot parse ini file: [84][Invalid or incomplete multibyte or wide character]
(2022-04-12 15:28:54): [gpo_child[3955]] [main] (0x0020):
perform_smb_operations failed.[84][Invalid or incomplete multibyte or wide
character].
(2022-04-12 15:28:54): [gpo_child[3955]] [main] (0x0020): gpo_child failed!
4、Reproduction method
1) preparation
AD: windows server 2012 datacenter，
Configure AD Domain server, DNS Service
Configure domain: adtest.zly.com
Gpo policy: “computer configuration ==> strategy==>windows setting==>security
setting==>local stategy==> Allow local login”, configure some user or group who
have local login permission
Linux client： centos 7.9 or redhat 7.9
realm join adtest.zly.com
2) reproduction
Linux client:
[root@wxvmlinux sssd]# ssh -l wxadmin localhost
wxadmin@localhost's password:
Authentication failed.
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