Additional Resources

A lot of useful information concerning LDAP is available. Please review these sources, especially the OpenLDAP website and the LDAP HOWTO, before beginning to set up and configure LDAP on your system.

Installed Documentation

The ldap man page is a good place to get started for an introduction to LDAP. Also, man pages exist for the various LDAP daemons and utilities. Please check the man pages if you need more information on ldapmodify, ldapsearch, and the like.
/usr/share/docs/openldap-versionnumber — Contains a general README document and miscellaneous information.

Useful Websites

http://www.openldap.org — Home of the OpenLDAP Project, the collaborative effort to develop a "robust, commercial-grade, fully featured, and open source LDAP suite of applications and development tools."
http://www.redhat.com/mirrors/LDP/HOWTO/LDAP-HOWTO.html — LDAP Linux HOWTO document, covering the installation through authentication and logging.
http://www.padl.com — Developers of nss_ldap and pam_ldap, among other useful LDAP tools.
http://www.innosoft.com/ldapworld — Contains information concerning LDAP RFCs and LDAP version 3 specifications.
http://www.kingsmountain.com/ldapRoadmap.shtml — Jeff Hodges' LDAP Road Map contains links to several useful FAQs and emerging news concerning the LDAP protocol.
http://www.rudedog.org/auth_ldap — Home of the auth_ldap authentication module for Apache.
http://www.stanford.edu/~bbense/Inst.html — Discusses the use of LDAP with Sendmail.
http://www.webtechniques.com/archives/2000/05/wilcox — A useful look at managing groups in LDAP.
http://www.ldapman.org/articles — Articles that offer a good introduction to LDAP, including methods to design an directory tree and customizing directory structures.

Related Books

Implementing LDAP by Mark Wilcox; Wrox Press, Inc.
Understanding and Deploying LDAP Directory Services by Tim Howes et al.; Macmillan Technical Publishing