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.
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