Sorry, just an update regarding port 7000. From my debug on the server, this port is opened by a java process running the zookeeper-server process. This is why I mentioned it here.  Also, the configuration in the zookeeper service -> Server -> metrics   Thanks! ... View more

hello,   Thank you for your answer. 1. port 7000 here: https://access.redhat.com/solutions/198813 it says to modify 'echo TraceEnable off >>/etc/httpd/conf/httpd.conf' & and restart 'service httpd reload' apache server. The problem is that on none of my servers in the cluster, the httpd service is not actually running. Do you have any other suggestions?   2. For MapReduce -> I enabled HTTS on MapReduce Shuffle with:   but I still don't understand where I should add the HSTS header configuration. In ssl-server.xml? How would the config look like? Like in the image bellow?   I tested with what I stated in the images above and HSTS header is not present.   Thank you! ... View more

Hello, Thank you for your answer! I need to ENABLE HSTS header on all ports in the cluster which are exposed via HTTPS.  But if I understand it correcly, I can safely disable the debug interface. I can’t enable HSTS on the Service and Host Monitoring services, right?   Thank you so much! All the best! ... View more