OpenDS - Next generation Directory Service

•    Java

OpenDS is an community project, building a free and comprehensive next generation directory service. OpenDS is designed to address large deployments, to provide high performance, to be highly extensible, and to be easy to deploy, manage and monitor. The OpenDS directory service will ultimately include not just the Directory Server, but also other essential directory-related services like directory proxy, virtual directory, namespace distribution and data synchronization.

Univention Corporate Server - Easy administration of your IT infrastructure

•    C

Univention Corporate Server is a preconfigured, 100% open source Linux server and IT management system. It is free of charge and perfect for providing Microsoft Server-like services on the cloud or on the premises, to run and operate corporate IT environments with Windows- and Linux-based clients and to extend those environments with proven enterprise software, also either on the cloud or on the premises.

addict - Get a full Active Directory REST API in 30 seconds

•    Javascript

Addict is a drop-in REST API microservice for Active Directory implementations. Just like that.Gives you a web server with REST endpoints to add, remove, move, disable, enable, unlock or list Users, Groups and Organizational Units. It includes result caching by default and flexible filters for querying, sorting, pagination and column selection.

keycloak - Open Source Identity and Access Management For Modern Applications and Services

•    Java

Keycloak is an open source Identity and Access Management solution aimed at modern applications and services. It makes it easy to secure applications and services with little to no code. Users authenticate with Keycloak rather than individual applications. This means that your applications don't have to deal with login forms, authenticating users, and storing users. Once logged-in to Keycloak, users don't have to login again to access a different application.

DavMail - POP/IMAP/SMTP/Caldav to Exchange

•    Java

DavMail is a POP/IMAP/SMTP/Caldav/Carddav/LDAP exchange gateway allowing users to use any mail/calendar client (e.g. Thunderbird with Lightning or Apple iCal) with an Exchange server, even from the internet or behind a firewall through Outlook Web Access. DavMail now includes an LDAP gateway to Exchange global address book and user personal contacts to allow recipient address completion in mail compose window and full calendar support with attendees free/busy display.

docker-mailserver - A fullstack but simple mailserver (smtp, imap, antispam, antivirus, ssl

•    Shell

A fullstack but simple mail server (smtp, imap, antispam, antivirus...). Only configuration files, no SQL database. Keep it simple and versioned. Easy to deploy and upgrade. Before you open an issue, please have a look this README, the Wiki and Postfix/Dovecot documentation.

OpenLdap - Implementation of the Lightweight Directory Access Protocol (LDAP)

•    C

OpenLDAP Software is an open source implementation of the Lightweight Directory Access Protocol. The OpenLDAP Project was started in 1998 by Kurt Zeilenga. The project started by cloning the LDAP reference source from the University Of Michigan where a long-running project had supported development and evolution of the LDAP protocol.

curl - A command line tool and library for transferring data with URL syntax, supporting HTTP, HTTPS, FTP, FTPS, GOPHER, TFTP, SCP, SFTP, SMB, TELNET, DICT, LDAP, LDAPS, FILE, IMAP, SMTP, POP3, RTSP and RTMP

•    C

curl is used in command lines or scripts to transfer data. It is also used in cars, television sets, routers, printers, audio equipment, mobile phones, tablets, settop boxes, media players and is the internet transfer backbone for thousands of software applications affecting billions of humans daily.

OpenDJ - LDAPv3 compliant directory service

•    Java

OpenDJ is a new LDAPv3 compliant directory service, providing a high performance, highly available and secure store for the identities managed by enterprises. Its easy installation process, combined with the power of the Java platform makes of OpenDJ the simplest and fastest directory server to deploy and manage.

389 Directory Server - Powerful OpenSource LDAP

•    C

The enterprise-class Open Source LDAP server for Linux. It is hardened by real-world use, is full-featured, supports multi-master replication, and already handles many of the largest LDAP deployments in the world. OpenLDAP and Fedora Directory Server were both derived from the original University of Michigan slapd project. In 1996 the original developers of slapd became Netscape employees and developed Netscape Directory Server, which is now Fedora Directory Server.

Kopano - Collaboration made easy

•    C++

Kopano Core provides the foundation for groupware messaging enabling clients such as Kopano WebApp, Kopano DeskApp, mobile and sync clients. With its modular architecture, Kopano Core enables the possibility for a variety of setup scenarios, scalable from a very low-powered system to a multi-datacenter setup providing messaging capabilities to tens of thousands of users.

Apache Fortress - Identity and Access Management

•    Java

Apache Fortress the open source identity and access management built on OpenLDAP. Fortress is designed to address complex authentication, authorization and auditing needs simply and easily. It helps to ensure strict adherence to current security standards while allowing for ease of installation and ongoing maintenance. A standards-based access management system, written in Java, that provides role-based access control, delegated administration and password policy services with LDAP.

Adldap2-Laravel - LDAP Authentication & Management for Laravel

•    PHP

Easy configuration, access, management and authentication to LDAP servers utilizing the root Adldap2 repository. Note: If you are using laravel 5.5 or higher you can skip the service provider and facade registration and continue with publishing the configuration file.

JXplorer - A Java Ldap Browser

•    Java

JXplorer is a cross platform LDAP browser and editor. It is a standards compliant general purpose LDAP client that can be used to search, read and edit any standard LDAP directory, or any directory service with an LDAP or DSML interface.

Mandriva - Identity and Network Management

•    C

Mandriva Directory Server is an enterprise directory platform based on LDAP designed to manage identities, access control informations, policies, application settings and user profiles. If you already use Samba, Postfix, Squid or CUPS, you can benefit from MDS today to manage your infrastructure.

ApacheDS - Apache Directory Project

•    Java

ApacheDS is an embeddable directory server entirely written in Java, which has been certified LDAPv3 compatible by the Open Group. Besides LDAP it supports Kerberos 5 and the Change Password Protocol. It has been designed to introduce triggers, stored procedures, queues and views to the world of LDAP which has lacked these rich constructs.

LDAP Account Manager - Easy LDAP Management

LDAP Account Manager (LAM) is a webfrontend for managing entries (e.g. users, groups, DHCP settings) stored in an LDAP directory. LAM was designed to make LDAP management as easy as possible for the user. It abstracts from the technical details of LDAP and allows persons without technical background to manage LDAP entries. If needed, power users may still directly edit LDAP entries via the integrated LDAP browser.

ad - Making Active Directory jQuery-easy

•    Javascript

Making Active Directory jQuery-easy.AD is a Javascript implementation of common Active Directory tasks, built to be simple as possible.

ruby-net-ldap - Pure Ruby LDAP library

•    Ruby

Net::LDAP for Ruby (also called net-ldap) implements client access for the Lightweight Directory Access Protocol (LDAP), an IETF standard protocol for accessing distributed directory services. Net::LDAP is written completely in Ruby with no external dependencies. It supports most LDAP client features and a subset of server features as well. Net::LDAP has been tested against modern popular LDAP servers including OpenLDAP and Active Directory. The current release is mostly compliant with earlier versions of the IETF LDAP RFCs (2251–2256, 2829–2830, 3377, and 3771). Our roadmap for Net::LDAP 1.0 is to gain full client compliance with the most recent LDAP RFCs (4510–4519, plus portions of 4520–4532).

play-pac4j - Security library for Play framework 2 in Java and Scala: OAuth, CAS, SAML, OpenID Connect, LDAP, JWT

•    Java

The play-pac4j project is an easy and powerful security library for Play framework v2 web applications which supports authentication and authorization, but also logout and advanced features like CSRF protection. It can work with Deadbolt. It's based on Play 2.6 (and Scala 2.11 or Scala 2.12) and on the pac4j security engine v3. It's available under the Apache 2 license. The LogoutController logs out the user from the application.