Elastic Stack 8 : Install Packetbeat

	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 1759 : 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 yellow open .ds-metricbeat-8.5.3-2022.12.09-000001 M5Aeg-pHQL6llaMBUD3JuA 1 1 1586 0 2.3mb 2.3mb yellow open .ds-packetbeat-8.5.3-2022.12.09-000001 8fLB4BygSyaQgo0naZMsYw 1 1 6 0 80.5kb 80.5kb yellow open test_index yWfKwu85RpWT_LdWnsnV9Q 1 1 1 0 6.4kb 6.4kb # 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-8.5.3-2022.12.09-000001/_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" : 1141, "relation" : "eq" }, "max_score" : 1.0, "hits" : [ { "_index" : ".ds-packetbeat-8.5.3-2022.12.09-000001", "_id" : "4iH69YQBSb5fRSPmlTBg", "_score" : 1.0, "_source" : { ..... .....

[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