I am able to login to the Ambari but when I am trying to access the nifi, I am facing an issue with insufficient permissions(No applicable policies could be found
To access the NIFI through SSL you need to load the user certificate in your browser. Then you will be able to access the NIFI UI.
To understand the procedure to do the same. Kindly follow the link below.
If it resolve your query. Kindly accept my answer.
Hope it helps!!!!!!!!