@GN_Exp
Can you please try this:
1. Create a file as following: "/etc/knox/conf/topologies/ui.xml". and add the following contents to it. Make sure to change the "rangeradmin.example.com:6080" with your Ranger Hostname
<topology>
<gateway>
<provider>
<role>authentication</role>
<name>Anonymous</name>
<enabled>true</enabled>
</provider>
<provider>
<role>identity-assertion</role>
<name>Default</name>
<enabled>false</enabled>
</provider>
</gateway>
<service>
<role>AMBARI</role>
<url>http://ambariserver.example.com:8080</url>
</service>
<service>
<role>AMBARIUI</role>
<url>http://ambariserver.example.com:8080</url>
</service>
<service>
<role>RANGER</role>
<url>http://rangeradmin.example.com:6080/</url>
</service>
<service>
<role>RANGERUI</role>
<url>http://rangeradmin.example.com:6080/</url>
</service>
</topology> .
2. Then restart "KNOX" service and then try accessing the following URL to access Ranger Admin UI. Please change the "knoxserver.example.com" with your own knox host URL.
https://knoxserver.example.com:8443/gateway/ui/ranger/index.html
.
Additionally if you want to To make Knox use Ranger authorization then please refer to the following article: https://community.hortonworks.com/articles/114601/how-to-configure-and-troubleshoot-a-knox-topology....
