This is a rather simple Ruby LDAP server that proxies operations upstream but at the same time provides a facility to invoke your code at certain points in the operation runtime. This may help to accomodate for some clients that are not smart enough to implement the logic you need themselves. LDA...

A LDAP strategy for OmniAuth.

UAC Bitmasks as an Array

Devise extension to allow authentication via LDAP. Customized for XN.

Devise extension to allow authentication via LDAP, No ORM

Automatically connects to the LDAP server if you are on campus/VPN. Can be queried by UPI, and it will return a simple ruby hash with the relevant information.

ActiveDirectory uses Net::LDAP to provide a means of accessing and modifying an Active Directory data store. This is a fork of the activedirectory gem.

Provides an embedded LDAP server for BDD. The embedded server is built with ApacheDS.

Ldumbd is a simple, self-contained read-only LDAP server that uses PostgreSQL, MySQL/MariaDB or SQLite as a back end.

ActiveLdap dynamic finders

It provides the interface to some LDAP libraries (e.g. OpenLDAP, Netscape SDK and Active Directory). The common API for application development is described in RFC1823 and is supported by Ruby/LDAP.

A gem for managing groups with ldap

Simple LDAP (Active Directory) connector

Generator that enabled LDAP authentication with a single command.

ldap adapter for datamapper which uses either net-ldap or ruby-ldap

Ruby interface for querying MIT LDAP server (only if you're on MITnet)

ldap plugin for ffcrm

The simplest that LDAP authentication can get while still being useful

DSL for dynamically building complex LDAP filters without concern for closing parentheses

Port of Ruby/LDAP to JRuby, with patch for Puppetserver