@Eric Krenz Try this one to start Demo LDAP curl -i -uadmin:admin -H 'X-Requested-By: ambari' -X POST -d '{"RequestInfo":{"context":"Start Demo LDAP","command":"STARTDEMOLDAP"},"Requests/resource_filters":[{"service_name":"KNOX","component_name":"KNOX_GATEWAY","hosts":"$knox_gateway_hostname"}]}' http://$ambari_server:8080/api/v1/clusters/$cluster_name/requests To stop Demo LDAP curl -i -uadmin:admin -H 'X-Requested-By: ambari' -X POST -d '{"RequestInfo":{"context":"Stop Demo LDAP","command":"STOPDEMOLDAP"},"Requests/resource_filters":[{"service_name":"KNOX","component_name":"KNOX_GATEWAY","hosts":"$knox_gateway_hostname"}]}' http://$ambari_server:8080/api/v1/clusters/$cluster_name/requests ... View more