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Samba Winbind Authentication doesn't Work After Updating Winbind Packages to the Latest Version. (Doc ID 2692535.1)

Last updated on JULY 23, 2020

Applies to:

Linux OS - Version Oracle Linux 7.8 and later
Linux x86-64

Symptoms

The AD users cannot authenticate successfully and encounter the below errors:

$ grep -C 2  "could not lookup name: <ad_group>" /var/log/secure
Jul 12 18:05:47 <HOSTNAME> sshd[27852]: pam_winbind(sshd:auth): getting password (0x000062d0)
Jul 12 18:05:47 <HOSTNAME> sshd[27852]: pam_winbind(sshd:auth): pam_get_item returned a password
Jul 12 18:05:47 <HOSTNAME> sshd[27852]: pam_winbind(sshd:auth): could not lookup name: <ad_group>
Jul 12 18:05:47 <HOSTNAME> sshd[27852]: pam_winbind(sshd:auth): cannot convert group <ad_group> to sid, check if group <ad_group> is valid group.
Jul 12 18:05:50 <HOSTNAME> sshd[27852]: Failed password for user123 from A.B.C.D port 54987 ssh2

Changes

 The Samba Winbind packages were updated to the version 4.10.4-11.el7_8

Jul  9 14:52:41 <HOSTNAME> yum[23454]: Updated: libwbclient-4.10.4-11.el7_8.x86_64
Jul  9 14:52:43 <HOSTNAME> yum[23454]: Updated: samba-client-libs-4.10.4-11.el7_8.x86_64
Jul  9 14:52:43 <HOSTNAME> yum[23454]: Updated: samba-common-libs-4.10.4-11.el7_8.x86_64
Jul  9 14:52:43 <HOSTNAME> yum[23454]: Updated: samba-libs-4.10.4-11.el7_8.x86_64
Jul  9 14:52:43 <HOSTNAME> yum[23454]: Updated: samba-common-tools-4.10.4-11.el7_8.x86_64
Jul  9 14:52:43 <HOSTNAME> yum[23454]: Updated: samba-winbind-modules-4.10.4-11.el7_8.x86_64
Jul  9 14:52:44 <HOSTNAME> yum[23454]: Updated: samba-winbind-4.10.4-11.el7_8.x86_64
Jul  9 14:52:44 <HOSTNAME> yum[23454]: Updated: libsmbclient-4.10.4-11.el7_8.x86_64

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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