LDAP explained
Follows is a link to a great little article on how to setup LDAP and what the small abreviated terms mean. Great for an LDAP newbie such as myself.
http://applications.linux.com/article.pl?sid=05/05/18/1248224&tid=37
I have only started reading it, but will be applying it to my Debian server. We'll see how I go.
edit: Here's another great link http://www.sudleyplace.com/LDAP/index.en.html