@farhanekarim The feature was added in zeppelin 0.7.0, so you should be able to get it working. There's some documentation on using LdapRealm, but there aren't many examples floating about, best to look at the conf example in the code. Basically you want something like: ldapRealm = org.apache.zeppelin.realm.LdapRealm ldapRealm.contextFactory.url = ldap://localhost:33389 ldapRealm.contextFactory.authenticationMechanism = simple ldapRealm.contextFactory.systemUsername = uid=guest,ou=people,dc=hadoop,dc=apache,dc=org ldapRealm.contextFactory.systemPassword = S{ALIAS=ldcSystemPassword} ldapRealm.authorizationEnabled = true ldapRealm.userSearchBase = dc=hadoop,dc=apache,dc=org ldapRealm.groupSearchBase = ou=groups,dc=hadoop,dc=apache,dc=org ldapRealm.userObjectClass = person ldapRealm.groupObjectClass = groupofnames ldapRealm.userSearchAttributeName = sAMAccountName ldapRealm.memberAttribute = member ldapRealm.rolesByGroup = LDN_USERS: user_role, NYK_USERS: user_role, GLOBAL_ADMIN: admin_role [roles] user_role = * admin_role= * The code for Zeppelin is similar to the Apache Knox codebase, so if you get stuck have a look for Knox LDAP configuration (e.g. here). ... View more