1. Does Ranger support RHEL7 on HDP2.4? Following link does not show it: http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.4.0/bk_installing_manually_book/content/installation_prerequisites_ranger.html However whole HDP 2.4 is compatible with RHEL7: http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.4.0/bk_installing_manually_book/content/meet-min-system-requirements.html 2. Does Ranger on HDP 2.4 support Postgresql version 9.5 or 9.3 only or 8.4 only ?? Following table shows it is compatible with 9.3 http://docs.hortonworks.com/HDPDocuments/Ambari-2.2.1.0/bk_Installing_HDP_AMB/content/_database_requirements.html However this link shows 8.4.2 only: http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.4.0/bk_installing_manually_book/content/installation_prerequisites_ranger.html And what is ultimate truth? ... View more