







Ok, I see that you have installed all the components in the same host. And the certificates created are associated with the 127.0.0.1 address, which is correct for an installation with all the components within the same host.
So, you need to replace in filebeat.yml configuration file the output.elasticsearch.hosts: IP 172.16.0.172 by 127.0.0.1. Do the same in the file kibana.yml: elasticsearch.hosts: https://127.0.0.1:9200
systemctl restart filebeat and systemctl restart kibana