Unable to authenticate using SSSD against LDAP server after upgrade from RHEL6.1

Solution Unverified - Updated -

Issue

We patched the server from 6.1 to 6.4. The LDAP config is still broken, and we need some assistance in getting it back on track!

  • A normal ldapsearch does return the user list as configured in LDAP:
ldapsearch -x -H ldaps://<ldaphost>:636 -b "dc=<domain>,dc=<tld>"
...
  • Same sssd.conf used as in 6.1.
  • What we see now is errors in the /var/log/secure file when logging in via SSH or doing su -
Mar 21 12:35:18 <hostname> sshd[<pid>]: pam_sss(sshd:auth): received for user <someuser>: 9 (Authentication service cannot retrieve authentication info)

Environment

  • Red Hat Enterprise Linux (RHEL) 6
  • SSSD 1.9
  • LDAP authentication

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