elastalert-create-index Unknown mimetype error

Question

While attempting to create index with Elastalert using command elastalert-create-index for a basic-auth secured instance using port:5601 ,it fails with error:

elasticsearch.exceptions.SerializationError: Unknown mimetype, unable to deserialize: text/html

Answer 1

It seems that the default port to use for the authenticantication is where Kibana is running on port 9200