Elastic Stack 9 : Install Packetbeat2025/08/08

	Install Packetbeat that collects and analyze Network packets.
[1]	Install Packetbeat. Configure Elasticsearch repository before it.

[root@dlp ~]#

dnf -y install packetbeat

[2]	Configure basic settings and start Packetbeat.

[root@dlp ~]#

vi /etc/packetbeat/packetbeat.yml

# line 58 : set items to collect data
# if disable ICMPv4/ICMPv6, turn to false
# line 44 and later : many items are targeted as monitoring by default,
# but if not need, comment out the line [ports: ***]

packetbeat.protocols:
- type: icmp
  # Enable ICMPv4 and ICMPv6 monitoring. Default: false
  enabled: true

- type: amqp
  # Configure the ports where to listen for AMQP traffic. You can disable
  # the AMQP protocol by commenting out the list of ports.
  ports: [5672]

.....
.....

# line 181 : if use Kibana, uncomment and specify output host
# if SSL is enabled on Kibana, hostname should be the same with the hostname in certs
# [username] and [password] is the admin user's one
# if using self-signed certificate, specify [ssl.verification_mode: none]

setup.kibana:
.....
  host: "https://dlp.srv.world:5601"
  protocol: "https"
  username: "elastic"
  password: "password"
  ssl.enabled: true
  ssl.verification_mode: none

# line 217 : specify output of Elasticsearch
# [username] and [password] is the admin user's one
# [ssl.certificate_authorities] is the cacert generated by Elasticsearch installation

output.elasticsearch:
  # Array of hosts to connect to.
  hosts: ["https://dlp.srv.world:9200"]

  protocol: "https"
  username: "elastic"
  password: "password"
  ssl.certificate_authorities: "/etc/elasticsearch/certs/http_ca.crt"

.....
.....

[root@dlp ~]#

vi /etc/packetbeat/packetbeat.reference.yml

# line 1870 : if use Kibana, uncomment and specify output host
# if SSL is enabled on Kibana, uncomment ssl related lines
# [username] and [password] is the admin user's one
# if using self-signed certificate, specify [ssl.verification_mode: none]

setup.kibana:

  # Kibana Host
  # Scheme and port can be left out and will be set to the default (http and 5601)
  # In case you specify and additional path, the scheme is required: http://localhost:5601/path
  # IPv6 addresses should always be defined as: https://[2001:db8::1]:5601
  host: "https://dlp.srv.world:5601"

  # Optional protocol and basic auth credentials.
  protocol: "https"
  username: "elastic"
  password: "password"

  # Optional HTTP Path
  #path: ""

  # Use SSL settings for HTTPS. Default is true.
  ssl.enabled: true

.....
.....

  # after very careful consideration. It is primarily intended as a temporary
  # diagnostic mechanism when attempting to resolve TLS errors; its use in
  # production environments is strongly discouraged.
  # The default value is full.
  ssl.verification_mode: none

[root@dlp ~]#

systemctl enable --now packetbeat

[3]	Verify status the data has been collected normally.

# index list

[root@dlp ~]#

curl -u elastic --cacert /etc/elasticsearch/certs/http_ca.crt https://127.0.0.1:9200/_cat/indices?v

Enter host password for user 'elastic'
health status index                                                              uuid                   pri rep docs.count docs.deleted store.size pri.store.size dataset.size
.....
.....
yellow open   .ds-metricbeat-9.1.0-2025.08.06-000001                             0TnJalxZRTC3529MN3X87g   1   1         28            0    107.4kb        107.4kb      107.4kb
yellow open   .ds-packetbeat-9.1.1-2025.08.08-000001                             ca3CMl83RXGiJGodnrdrBQ   1   1          9            0     46.2kb         46.2kb       46.2kb

# document list on the index

[root@dlp ~]#

curl -u elastic --cacert /etc/elasticsearch/certs/http_ca.crt https://127.0.0.1:9200/.ds-packetbeat-9.1.1-2025.08.08-000001/_search?pretty

Enter host password for user 'elastic':
{
  "took" : 0,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 207,
      "relation" : "eq"
    },
    "max_score" : 1.0,
    "hits" : [
      {
        "_index" : ".ds-packetbeat-9.1.1-2025.08.08-000001",
        "_id" : "gwEEh5gBzSdMfqv7pvAV",
        "_score" : 1.0,
        "_source" : {
          "server" : {
            "port" : 53,
            "bytes" : 81,
            "ip" : "10.0.0.10"
          },
          "agent" : {
            "name" : "dlp.srv.world",
            "id" : "b45a0ec3-8ddb-450f-944d-b3940b276c3b",
            "type" : "packetbeat",
            "ephemeral_id" : "6c25bbac-9051-4ee8-b296-d881c9079a0e",
            "version" : "9.1.1"
          },
          "method" : "QUERY",
          "resource" : "dlp.srv.world",
          "query" : "class IN, type A, dlp.srv.world",
          "destination" : {
            "port" : 53,
            "bytes" : 81,
            "ip" : "10.0.0.10"
          },
          "dns" : {
            "op_code" : "QUERY",
            "resolved_ip" : [
              "10.0.0.30"
            ],
.....
.....

[4]	If Kibana is running, it's possible to import data to sample Dashboards.

[root@dlp ~]#

packetbeat setup --dashboards

Loading dashboards (Kibana must be running and reachable)
Loaded dashboards

Matched Content