Accessing NiFi Using Knox

Enter the following URL in a browser:
```
https://$KNOX_HOST:$KNOX_PORT/$GATEWAY_CONTEXT/flow-management/nifi-app/nifi
```
Where:
- $KNOX_HOST:KNOX_PORT is the Knox host:gateway port.
- $GATEWAY_CONTEXT is the gateway context, defined in the gateway-site configuration in Knox.
When prompted, enter your NiFi user name and password to be authenticated by Knox.

Knox proxies the NiFi UI.