Configuring NiFi Authentication and Proxying with Apache Knox
You can use the Apache Knox Gateway to provide authentication access security for your NiFi services. The Apache Knox Gateway (Knox) enables you to extend Apache Hadoop® services to users outside of a Hadoop cluster without reducing Hadoop security.
Knox also simplifies Hadoop security for users who access the cluster data and execute jobs. Knox integrates with identity management and single sign-on (SSO) systems used in enterprises, enabling you to use identities from these systems to access Hadoop clusters. For more information about Knox, see Apache Knox Gateway Overview.
If you are using Hortonworks Data Platform (HDP) 2.6.4 or earlier, HA proxying of NiFi is not supported.