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lldap – light LDAP implementation

lldap is a lightweight authentication server for self-hosted environments that need LDAP-backed login without the complexity of a traditional directory service.

It provides a simplified, opinionated LDAP interface for authentication and user management, making it suitable for applications and identity components that can use LDAP as a user source. The project includes a browser-based administration interface and stores users, groups, memberships, and related data in SQL backends including SQLite, MySQL, MariaDB, and PostgreSQL.

This is free and open source software.

Key Features

  • Uses the OPAQUE protocol with Argon2-based password storage for modern password handling.
  • Offers a GraphQL API for scripting and automation.
  • Supports custom user and group attributes for service-specific integrations.
  • Includes a bootstrap script to enforce users, groups, and attributes from a file.
  • Supports deployment from OCI images, Kubernetes, TrueNAS, distribution packages, and source builds.
  • Can integrate with Linux accounts through PAM and nslcd.
  • Supports LDAPS, with reverse proxy deployment recommended for securing the web interface.
  • Allows users to update their own details and request password reset links when SMTP is configured.

Website: github.com/lldap/lldap
Support:
Developer: Valentin Tolmer and contributors
License: GNU General Public License v3.0

lldap is written in Rust. Learn Rust with our recommended free books and free tutorials.


Related Software

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OpenLDAPLDAP suite of applications and development tools
OpenDJCloud Directory for the API Economy
ApacheDSLDAP and Kerberos server written in Java
GLAuthEasy-to-use, LDAP server with configurable backends
RazDCActive Directory domain controller built on Rocky Linux and Samba4
Mori-bitoTerminal-based LDAP server

Read our verdict in the software roundup.


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