O'Reilly Network articles about this topic:
Getting Started with LDAP
Luke A. Kanies shows you how to set up a basic LDAP directory to store Unix user accounts, along with a script to pull those accounts to a Unix system.
An Introduction to LDAP
Luke A. Kanies introduces LDAP and explains why it is an important tool for network administrators.
Browsing an LDAP Directory with WAP
To illustrate why WAP technology is a boon to wireless development, the authors present a solution that accesses telephone numbers from a company directory.
Other documents about this topic:
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Apache based WebDAV Server with LDAP and SSL
This document is an HOWTO on installing a Apache based WebDAV server with LDAP for authentication and SSL encryption.