Remote Cluster node 9300 port cannot connect

Elastic Stack Elasticsearch
1

I am connecting a remote cluster from the local cluster. I got a connection time out error. Then I tried to curl the 9200 and 9300 port from the local cluster note to the remote cluster node. This is the response:

curl -X GET elastic:*** http://remotenode01ip:9200
{
  "name" : "remotenode01",
  "cluster_name" : "Remote-Elasticsearch",
  "cluster_uuid" : "pdo**o-w",
  "version" : {
    "number" : "8.8.1",
    "build_flavor" : "default",
    "build_type" : "deb",
    "build_hash" : "f8edfccba429b6477927a7c1ce1bc6729521305e",
    "build_date" : "2023-06-05T21:32:25.188464208Z",
    "build_snapshot" : false,
    "lucene_version" : "9.6.0",
    "minimum_wire_compatibility_version" : "7.17.0",
    "minimum_index_compatibility_version" : "7.0.0"
  },
  "tagline" : "You Know, for Search"
}

curl -X GET -k -u elastic:*** https://remotenode01ip:9300
curl: (56) OpenSSL SSL_read: error:0A000412:SSL routines::sslv3 alert bad certificate, errno 0

I have set up the same CA for the local and remote cluster xpack.security.transport.ssl.
What else should I set up to connect 9300 port?
Thank you.

2

Please provide more details on this step.

What exactly did you configure? What is the exact error message? Are there any other details on the logs on either cluster?

3

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