openldap

Authentication Server

in

Use an LDAP directory for user authentication.

Resources
LDAP Authentication, Part 1 from Linux Magazine
LDAP Authentication, Part 2 from Linux Magazine

LDAP Replication

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How to replicate an LDAP database to a second server.

Resources
OpenLDAP Administration Guide's section on LDAP SyncReplication.

"Provider" ("master") configuration
On the provider (master) server, edit /usr/local/etc/openldap/slapd.conf and change the index line from something similar to:

index objectClass eq

to:
index objectClass,entryCSN,entryUUID eq

Then add 3 lines:

overlay syncprov
syncprov-checkpoint 100 10
syncprov-sessionlog 100

OpenLDAP Installation

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OpenLDAP is an open source implementation of the Lightweight Directory Access Protocol.

BerkeleyDB Installation
The Oracle Berkeley DB family of open source, embeddable databases provides developers with fast, reliable, local persistence with zero administration. Often deployed as "edge" databases, the Oracle Berkeley DB family provides very high performance, reliability, scalability, and availability for application use cases that do not require SQL.
The latest version can be downloaded from Oracle's download page:

mkdir -p /extra/src

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