Ubuntu 26.04

Elastic Stack : Install Auditbeat2026/07/09

 

Install Auditbeat that can monitor Audit actions.

[1] Install Auditbeat. Configure Elasticsearch repository before it.
root@dlp:~#
apt -y install auditbeat
[2] Configure basic settings and start Auditbeat.
root@dlp:~#
vi /etc/auditbeat/auditbeat.yml
# line 13 : set Audit action (writing rules is the same with auditctl)

- module: auditd
  audit_rules: |
    ## Define audit rules here.
    ## Create file watches (-w) or syscall audits (-a or -A). Uncomment these
    ## examples or add your own rules.

    ## If you are on a 64 bit platform, everything should be running
    ## in 64 bit mode. This rule will detect any use of the 32 bit syscalls
    ## because this might be a sign of someone exploiting a hole in the 32
    ## bit API.
    #-a always,exit -F arch=b32 -S all -F key=32bit-abi

    ## Executions.
    #-a always,exit -F arch=b64 -S execve,execveat -k exec

    ## External access (warning: these can be expensive to audit).
    #-a always,exit -F arch=b64 -S accept,bind,connect -F key=external-access

    ## Identity changes.
    #-w /etc/group -p wa -k identity
    #-w /etc/passwd -p wa -k identity
    #-w /etc/gshadow -p wa -k identity

.....
.....

# line 122 : 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 154 : 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"
  #api_key: "id:api_key"
  username: "elastic"
  password: "password"
  ssl.certificate_authorities: "/etc/elasticsearch/certs/http_ca.crt"

.....
.....

root@dlp:~#
vi /etc/auditbeat/auditbeat.reference.yml
# line 34 : basic settings for auditd module

- module: auditd
  resolve_ids: true
  failure_mode: silent
  backlog_limit: 8196
  rate_limit: 0
  include_raw_message: false
  include_warnings: false
  audit_rules: |

.....
.....

# line 1472 : 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 auditbeat
[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

health status index                                           uuid                   pri rep docs.count docs.deleted store.size pri.store.size dataset.size
yellow open   .ds-packetbeat-9.4.3-2026.07.09-000001          c6-tYY3RS_WdOk7R-D_9fw   1   1       2753            0      1.5mb          1.5mb        1.5mb
green  open   .internal.alerts-security.alerts-default-000001 pLfq98_1SbeGh_oI8_jomg   1   0          0            0       249b           249b         249b
yellow open   .ds-metricbeat-9.4.3-2026.07.09-000001          Nk25Ry-iSSW_kSUA1SYh1A   1   1       2156            0      4.6mb          4.6mb        4.6mb
yellow open   test_index                                      J7NriUgETm2_PQAG8aFUdw   1   1          1            0      7.3kb          7.3kb        7.3kb
yellow open   .ds-auditbeat-9.4.3-2026.07.09-000001           Nk0Rl97xQ6-Vgo02flbl6A   1   1       2751            0      1.4mb          1.4mb        1.4mb
green  open   .ds-.workflows-events-2026.07.09-000001         HkoWywm4SNm6bPzDJjhAOg   1   0          0            0       249b           249b         249b

# document list on the index

root@dlp:~#
curl -u elastic --cacert /etc/elasticsearch/certs/http_ca.crt https://127.0.0.1:9200/.ds-auditbeat-9.4.3-2026.07.09-000001/_search?pretty

{
  "took" : 1,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 2822,
      "relation" : "eq"
    },
    "max_score" : 1.0,
    "hits" : [
      {
        "_index" : ".ds-auditbeat-9.4.3-2026.07.09-000001",
        "_id" : "SKdQRJ8B0LOAoAIkfFdt",
        "_score" : 1.0,
        "_source" : {
          "@timestamp" : "2026-07-09T00:39:03.248Z",
          "service" : {
            "type" : "system"
          },
          "client" : {
            "ip" : "127.0.0.1",
            "port" : 54958,
            "packets" : 1,
            "bytes" : 70
.....
.....
[4] If Kibana is running, it's possible to import data to sample Dashboards.
root@dlp:~#
auditbeat setup --dashboards

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

Matched Content