Lightweight Directory Access Protocol

Lightweight Directory Access Protocol (LDAP) is an open, vendor-neutral protocol for accessing and maintaining distributed directory services over a network. In schools, LDAP directories serve as the central place where user accounts live, storing information about students, faculty, and staff along with their roles and permissions.

The most common LDAP implementation in education is Microsoft Active Directory, though open-source alternatives like OpenLDAP are also widely used. When someone is added to the LDAP directory, their account information becomes available to all connected systems. This centralized approach keeps user management consistent across the institution's entire tech stack.

OpenEduCat supports LDAP authentication, so institutions can use their existing directory infrastructure. When configured, users log into OpenEduCat with their institutional credentials, and roles sync from the directory. This eliminates the need for separate user accounts in OpenEduCat and makes sure access is automatically revoked when someone is removed from the directory.

LDAP remains the foundational directory protocol in institutional settings despite being decades old, mainly because Microsoft Active Directory uses LDAP as its core protocol, and Active Directory is the dominant identity management system in K-12 and higher education.

In practice, most schools interact with LDAP through Active Directory or OpenLDAP rather than building LDAP queries directly. When an education platform claims LDAP support, it means the platform can authenticate users by querying the institution's directory server instead of maintaining its own user database. That is a big deal: it means accounts are created and deactivated once in the directory, and all connected systems automatically reflect those changes.

Key setup considerations include attribute mapping (which LDAP attributes contain the role that determines access levels), group synchronization (whether the platform pulls group memberships from LDAP for permissions), and bind method (whether the platform uses a service account or passes user credentials directly). Platforms that support LDAP referrals handle multi-domain Active Directory forests found in large university systems. OpenEduCat's LDAP integration supports all standard bind methods and attribute mapping, with a configuration wizard that walks administrators through connecting to any standard LDAP directory.