Following are the configurations for connecting Apache Ranger with LDAP/LDAPS. There's an important tool that will help identify some settings in your AD AD Explorer - Windows Sysinternals | Microsoft Docs. This configuration will sync LDAP users and link them with their LDAP groups every 12 hours, so later from Apache Ranger, you can give permission based on LDAP groups as well. For connecting using LDAPS, ensure you have the proper certificates added in the same server that contains the Ranger's UserSync service. Configuration Name Configuration Value Comment ranger.usersync.source.impl.class org.apache.ranger.ldapusersync.process.LdapUserGroupBuilder   ranger.usersync.sleeptimeinmillisbetweensynccycle 12 hour   ranger.usersync.ldap.url ldaps://myldapserver.example.com ldaps or ldap based on your LDAP security ranger.usersync.ldap.binddn myuser@example.com   ranger.usersync.ldap.ldapbindpassword mypassword   ranger.usersync.ldap.searchBase OU=hadoop,DC=example,DC=com You can browse your AD and check which OU you want to make Ranger sync ranger.usersync.ldap.user.searchbase OU=hadoop2,DC=example,DC=com;OU=hadoop,DC=example,DC=com You can browse your AD and check which OU you want to make Ranger sync, you can also add 2 OU and separate them with ; ranger.usersync.ldap.user.objectclass user double-check the same  ranger.usersync.ldap.user.searchfilter (memberOf=CN=HADOOP_ACCESS,DC=example,DC=com) if you want to filter specific users to be synced in Ranger and not your entire AD ranger.usersync.ldap.user.nameattribute sAMAccountName double-check the same ranger.usersync.ldap.user.groupnameattribute memberOf double check the same ranger.usersync.user.searchenabled true   ranger.usersync.group.searchbase OU=hadoop,DC=example,DC=com You can browse your AD and check which OU you want to make Ranger sync ranger.usersync.group.objectclass group double-check the same ranger.usersync.group.searchfilter (cn=hadoop_*) if you want to sync specific groups not all AD groups ranger.usersync.group.nameattribute cn double-check the same ranger.usersync.group.memberattributename member double-check the same ranger.usersync.group.search.first.enabled true   ranger.usersync.truststore.file /path/to/truststore-file   ranger.usersync.truststore.password TRUST_STORE_PASSWORD     Here is a helpful link on how to construct complex LDAP search queries. Search Filter Syntax - Win32 apps | Microsoft Docs   Disclaimer from Cloudera: This article is contributed by an external user. Steps/ Content may not be technically verified by Cloudera and may not be applicable for all use cases and specifically to a particular distribution. Follow with caution and own risk. If needed, raise a support case to get the confirmation. ... View more