I have an old Elasticsearch cluster that shouldn't be getting traffic but somehow it still is. I have hundreds of services that could potentially be hitting it. I'm looking for a way to maybe capture the request origin so I can see where the requests are coming from. I tried enabling the REST request tracer but that didn't seem to do anything (https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-http.html).
Any thoughts?