Elasticsearch 9300 port cannot be connected

the problem encountered now is that the Aliyun security group used by the public network server cannot connect to the 9300 port server is
allows all-1 Melissa 1 address fields to access 0.0.0.0amp 0
linux firewall also maps port 9300
9200 can use normal restful data acquisition and addition is normal
now can not be used to solve

if there is no restriction on the firewall, it"s all on

es uses version 5.4.1.0

I use

configured by Spring data

spring:
  application:
    name: api-gateway
  data:
    elasticsearch:
      cluster-name: elasticsearch
      cluster-nodes: es-service:9300

configuration of local es:

`network.host: 0.0.0.0`

the configuration of the extranet server is also:

`network.host: 0.0.0.0`

Port mapping:

(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name    
tcp        0      0 0.0.0.0:9200            0.0.0.0:*               LISTEN      11960/java          
tcp        0      0 0.0.0.0:9300            0.0.0.0:*               LISTEN      11960/java          
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      -

Settings settings = Settings.builder() .put("client.transport.sniff", false) .put("cluster.name", clusterName) .build();