LDAP login fails, SSSD is used and unencrypted LDAP
Issue
A customer run a server used as both an LDAP server and client with sssd. After OS reboot, LDAP login mostly fails and the following message is output. It rarely succeeds.
In /var/log/secure:
pam_sss(sshd:auth): received for user ****: 4 (System error)
Using su to change into the user also fails.
Environment
- Red Hat Enterprise Linux (RHEL) 6, 7, 8 and 9
- LDAP
- System Security Services Daemon (SSSD)
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