eu estou instalando elk no meu terminal, no meio eu não sou capaz de configurar o logstash

Question

karthikksk@karthikksk-ThinkPad-E460:/$ sudo systemctl restart logstash
karthikksk@karthikksk-ThinkPad-E460:/$ sudo nano /etc/logstash/conf.d/02-beats-input.conf
karthikksk@karthikksk-ThinkPad-E460:/$ sudo ufw allow 5044
Skipping adding existing rule
Skipping adding existing rule (v6)
karthikksk@karthikksk-ThinkPad-E460:/$ sudo nano /etc/logstash/conf.d/10-syslog-filter.conf
karthikksk@karthikksk-ThinkPad-E460:/$ sudo nano /etc/logstash/conf.d/30-elasticsearch-output.conf
karthikksk@karthikksk-ThinkPad-E460:/$ sudo /opt/logstash/bin/logstash --configtest -f /etc/logstash/conf.d/
Invalid setting for beats input plugin:

  input {
    beats {
      # This setting must be a path
      # File does not exist or cannot be opened /etc/pki/tls/certs/logstash-forwarder.crt
      ssl_certificate => "/etc/pki/tls/certs/logstash-forwarder.crt"
      ...
    }
  } {:level=>:error}
Invalid setting for beats input plugin:

  input {
    beats {
      # This setting must be a path
      # File does not exist or cannot be opened /etc/pki/tls/private/logstash-forwarder.key
      ssl_key => "/etc/pki/tls/private/logstash-forwarder.key"
      ...
    }
  } {:level=>:error}
The given configuration is invalid. Reason: Something is wrong with your configuration. {:level=>:fatal}
karthikksk@karthikksk-ThinkPad-E460:/$