Mastering OpenLDAP: Configuring, Securing and Integrating Directory Services

Chapter 6. LDAP Schemas

The focus of this chapter will be LDAP Schemas. Schemas are the standard way of describing the structure of objects that may be stored inside the directory. The first few sections are designed to provide foundational knowledge of what schemas do and how they work—a foundation necessary for our work, later in this chapter, using and implementing schemas. But we will continue on from there to a number of more practical topics, including adding pre-defined schemas and defining our own custom schemas.

We will begin with a general examination of schemas. From there, we will look at schema hierarchies. Like the directory information tree itself, schemas are organized into hierarchies. Next, we will examine some of the basic schemas ...