Can anyone help me with this error ELK/Salesforce - salesforce

Question

ERROR
Attempted to resurrect connection to dead ES instance,
{:url=>#http://localhost:9200/>,
:error_type=>LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError,
:error=>"Elasticsearch Unreachable:
[http://localhost:9200/][Manticore::SocketException] Connection
refused (Connection refused)"}
Here are my files.
Logstash.conf:
input
{
tcp
{
port => 5000
}
}
output {
elasticsearch
{
hosts => "elasticsearch:9200"
}
}
elasticsearch.yml:
cluster.name: "docker-cluster"
network.host: 0.0.0.0
discovery.zen.minimum_master_nodes: 1
discovery.type: single-node
xpack.security.enabled: false
xpack.monitoring.enabled: false
xpack.ml.enabled: false
xpack.graph.enabled: false
xpack.watcher.enabled: false
logstash.yml
http.host: "0.0.0.0"
path.config: /usr/share/logstash/pipeline
xpack.monitoring.enabled: false
Kibana.yml:
server.name: kibana
server.host: "0"
elasticsearch.url:http://elasticsearch:9200
xpack.security.enabled: false
xpack.monitoring.enabled: false
xpack.ml.enabled: false
xpack.graph.enabled: false
xpack.reporting.enabled: false

Answer 1

Connection refused might be an indication of the firewall blocking that port or service, make sure your firewall settings allow the service your trying to reach. In Linux there is a GUI interface for the firewall To start this application, either select System → Administration → Firewall from the panel, or type system-config-firewall at a shell prompt. If your in windows just type firewall in the search box at the bottom left corner and click on firewall advance settings. Try enabling port 9200 and if elasitcshearch is a service running also enable it through firewall.
*In Linux you can try this to unblock port 9200:
firewall-cmd --permanent --add-port=9200/tcp
firewall-cmd --permanent --add-port=9300/tcp
*Start the service:
sudo systemctl enable elasticsearch.service
sudo systemctl start elasticsearch.service
sudo systemctl daemon-reload
*Then enable the service in the firewall:
sudo firewall-cmd --permanent --elasticsearch.service
firewall-cmd --reload