... systems. Chapter 12. What Are Directory Services? • Some Background • Introducing Java Naming Directory Interface • Using the JNDI to Access LDAP-Based Data Directory services are the services ... maintain a large distributed directory. For applications that are directory-oriented but of a scale smaller than what X.500 and DAP were designed for, applications like address books for Web browsers, ... Directory services are the services provided by special network databases that are used, much as paper phone books are (i.e., to map names to addresses, phone numbers, and services). The directory...