Access Control in Elastic - missing authentication credentials for REST request
I had security already enabled and user authentication working. Kibana loaded fine.
I have a 3 node cluster and stopped elasticsearch service on each node so I could add transport ssl.After enabling xpack.security.transport.ssl.enabled and keystore and truststore settings, I got the same ""missing authentication credentials for REST request" error in Kibana. Turns out the error was because I only had one node running and needed a minimum of two. After enabling transport ssl on another node and starting it, kibana worked again.
If you enable security for your cluster you & still got some error with AUTH yours clients, documentation wrote, what you need enable ssl for client optional OR required. Please, read the original topic: https://discuss.elastic.co/t/missing-authentication-for-rest-request/154807/13