Enable an LDAP listener Enabling a listener is optional. If enabled, a listener notifies the system to process LDAP records soon after there is an update on the LDAP server. Before you beginRole required: admin About this task A listener is a dedicated process that periodically searches for changes on the LDAP server. The listener can be deployed on a Microsoft Active Directory server that supports persistent queries (ADNotify), or on an LDAP server that supports persistent search request control (with OID 2.16.840.1.113722.214.171.124). To enable a listener: Procedure Navigate to System LDAP > LDAP Servers. Select the LDAP server to configure. Select the Listener check box. Click Update. Note: The system only imports user records that match the LDAP OU filter. Incoming user records that do not meet the filter requirements are flagged as invalid and ignored by the import. Administrators can enable verbose LDAP logging to determine if incoming records are not matching the LDAP OU filter.