OpenLDAP Everywhere Reloaded, Part I

May 23, 2012 By Stewart Walters  inHOW-TOs

Directory services is one of the most interesting and crucialparts of computing today. They provide our account management, basicauthentication, address books and a back-end repository for theconfiguration of many other important applications.

It's been nine long years since Craig Swanson and Matt Lung originallywrote their article "OpenLDAP Everywhere"(LJ, December 2002),and almost six years since their follow-up article "OpenLDAP EverywhereRevisited" (LJ, July 2005).

In this multipart series, I cover how to engineer an OpenLDAP directoryservice to create a unified login for heterogeneous environments. Withcurrent software and a modern approach to server design, the aim is to reducethe number of single points of failure for the directory.

In this article, I describe how to configure two Linux servers to host core network servicesrequired for clients to query the directory service. I configure thesecore services to be highly available through the use of failover poolsand/or replication.

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