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. The 389 Directory Server can be downloaded for free, and set up in less than an hour.
An open source, real-world, hardened directory service. All our code has been extensively tested with sanitisation tools. As well as a rich feature set of fail-over and backup technologies gives administrators confidence their accounts are safe.
High performance LDAP server that can handle thousands of operations per second, and hundreds of thousands of accounts.
With a database size that is only restricted by diskspace, high throughput performance, and multimaster replication for horizontal scaling, 389 Directory Server can meet the needs of the most demanding environments - from small business to cloud.
If you’re new to the project you should start with our getting started page. It contains links to builds, source code and documentation. Our mission page also contains information about our goals and vision.
LDAPv3 compliant server
For more see our Features page.
To get in touch with us, you can try to reach us on IRC at #389 on irc.freenode.net or on one of our mailing lists.
2018-05-24: Released 389-ds-base 22.214.171.124