LDAP for small organizations
Tim Laurence will tell us how to use LDAP (the Lightweight Directory Access Protocol) to centralize user information across machines in a network. He may also show us how to set up a redundant failover cluster of LDAP servers.
Edited to add: Here are the slides of the talk in ODP format.
Here is a tarball containing the slides above, and configuration snippets from his presentation.
and here is a link to the video if the embedded version does not work.