Red Hat Training

A Red Hat training course is available for Red Hat Directory Server

1.5. Other General Directory Resources

The following publications have very detailed and useful information about directories, LDAP, and LDIF:
All of the Red Hat Directory Server documentation, available at https://access.redhat.com/documentation/en-us/red_hat_directory_server, also contain high-level concepts about using LDAP and managing directory services, as well as Directory Server-specific information.