Job for slapd.service failed because the control process exited with error code?

Solution 1:

check-config.sh[2894]: Read/write permissions for DB file '/var/lib/ldap/__db.003' are required.

slapd runs as ldap user by default, if you attempted to start it (or loaded ldif etc..) as root user, it'd create files with incorrect permission. Try chown -R ldap.ldap /var/lib/ldap to fix the permissions and start the service.

Solution 2:

I also facing the same problem but I have resolved with below command:

setenforce 0
getenforce

If you want to persist it:

vi /etc/selinux/config

Change this parameter SELINUX=enforcing to SELINUX=permissive

Solution 3:

1. Disable your SELINUX.

2. Install the required certificates specified in the file:

   olcDatabase={2}hdb.ldif