securityonion/salt/filebeat/etc/filebeat.yml

{%- set MASTER = grains['master'] %}
{%- set HOSTNAME = salt['grains.get']('host', '') %}
{%- set BROVER = salt['pillar.get']('static:broversion', 'COMMUNITY') %}
{%- set WAZUHENABLED = salt['pillar.get']('static:wazuh_enabled', '1') %}
{%- set FLEETENABLED = salt['pillar.get']('static:fleet_enabled', '1') %}

name: {{ HOSTNAME }}

#================================ Logging ======================================
# There are four options for the log output: file, stderr, syslog, eventlog
# The file output is the default.

# Sets log level. The default log level is info.
# Available log levels are: error, warning, info, debug
logging.level: error

# Enable debug output for selected components. To enable all selectors use ["*"]
# Other available selectors are "beat", "publish", "service"
# Multiple selectors can be chained.
#logging.selectors: [ ]

# Send all logging output to syslog. The default is false.
#logging.to_syslog: false

# Send all logging output to Windows Event Logs. The default is false.
#logging.to_eventlog: false

# If enabled, filebeat periodically logs its internal metrics that have changed
# in the last period. For each metric that changed, the delta from the value at
# the beginning of the period is logged. Also, the total values for
# all non-zero internal metrics are logged on shutdown. The default is true.
#logging.metrics.enabled: true

# The period after which to log the internal metrics. The default is 30s.
#logging.metrics.period: 30s

# Logging to rotating files. Set logging.to_files to false to disable logging to
# files.
logging.to_files: true
logging.files:
  # Configure the path where the logs are written. The default is the logs directory
  # under the home path (the binary location).
  path: /usr/share/filebeat/logs

  # The name of the files where the logs are written to.
  name: filebeat.log

  # Configure log file size limit. If limit is reached, log file will be
  # automatically rotated
  rotateeverybytes: 10485760 # = 10MB

  # Number of rotated log files to keep. Oldest files will be deleted first.
  keepfiles: 7

  # The permissions mask to apply when rotating log files. The default value is 0600.
  # Must be a valid Unix-style file permissions mask expressed in octal notation.
  #permissions: 0600

# Set to true to log messages in json format.
#logging.json: false

#==========================  Modules configuration ============================
filebeat.modules:
#=========================== Filebeat prospectors =============================

# List of prospectors to fetch data.
filebeat.prospectors:
#------------------------------ Log prospector --------------------------------
{%- if grains['role'] == 'so-sensor' or grains['role'] == "so-eval" %}
{%- if BROVER != 'SURICATA' %}
{%- for LOGNAME in salt['pillar.get']('brologs:enabled', '')  %}
  - type: log
    paths:
      - /nsm/bro/logs/current/{{ LOGNAME }}.log
    fields:
      type: bro_{{ LOGNAME }}
    fields_under_root: true
    tags: ["bro"]
    clean_removed: false
    close_removed: false

{%- endfor %}
{%- endif %}

  - type: log
    paths:
      - /suricata/eve.json
    fields:
      type: ids
      engine: suricata
    fields_under_root: true
    clean_removed: false
    close_removed: false
{%- endif %}

{%- if WAZUHENABLED == '1' %}

  - type: log
    paths:
      - /wazuh/alerts/alerts.json
    fields:
      type: ossec
    fields_under_root: true
    clean_removed: false
    close_removed: false

  - type: log
    paths:
      - /wazuh/archives/archives.json
    fields:
      type: ossec_archive
    fields_under_root: true
    clean_removed: false
    close_removed: false

{%- endif %}

{%- if FLEETENABLED == '1' %}

  - type: log
    paths:
      - /osquery/logs/result.log
    fields:
      type: osquery
    fields_under_root: true
    clean_removed: false
    close_removed: false

{%- endif %}
#----------------------------- Logstash output ---------------------------------
output.logstash:
  # Boolean flag to enable or disable the output module.
  enabled: true

  # The Logstash hosts
  hosts: ["{{ MASTER }}:5644"]

  # Number of workers per Logstash host.
  worker: 1

  # Set gzip compression level.
  compression_level: 3

  # Enable SSL support. SSL is automatically enabled, if any SSL setting is set.
  ssl.enabled: true

  # Configure SSL verification mode. If `none` is configured, all server hosts
  # and certificates will be accepted. In this mode, SSL based connections are
  # susceptible to man-in-the-middle attacks. Use only for testing. Default is
  # `full`.
  ssl.verification_mode: full

  # List of supported/valid TLS versions. By default all TLS versions 1.0 up to
  # 1.2 are enabled.
  #ssl.supported_protocols: [TLSv1.0, TLSv1.1, TLSv1.2]

  # Optional SSL configuration options. SSL is off by default.
  # List of root certificates for HTTPS server verifications
  ssl.certificate_authorities: ["/usr/share/filebeat/intraca.crt"]

  # Certificate for SSL client authentication
  ssl.certificate: "/usr/share/filebeat/filebeat.crt"

  # Client Certificate Key
  ssl.key: "/usr/share/filebeat/filebeat.key"

# Elasticsearch template settings
#setup.template.settings:

  # A dictionary of settings to place into the settings.index dictionary
  # of the Elasticsearch template. For more details, please check
  # https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping.html
  #index:
    #number_of_shards: 1
    #codec: best_compression
    #number_of_routing_shards: 30

  # A dictionary of settings for the _source field. For more details, please check
  # https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-source-field.html
  #_source:
    #enabled: false

#============================== Kibana =====================================

# Starting with Beats version 6.0.0, the dashboards are loaded via the Kibana API.
# This requires a Kibana endpoint configuration.
#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: "localhost:5601"

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

  # Optional HTTP Path
  #path: ""

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

  # Configure SSL verification mode. If `none` is configured, all server hosts
  # and certificates will be accepted. In this mode, SSL based connections are
  # susceptible to man-in-the-middle attacks. Use only for testing. Default is
  # `full`.
  #ssl.verification_mode: full

  # List of supported/valid TLS versions. By default all TLS versions 1.0 up to
  # 1.2 are enabled.
  #ssl.supported_protocols: [TLSv1.0, TLSv1.1, TLSv1.2]

  # SSL configuration. By default is off.
  # List of root certificates for HTTPS server verifications
  #ssl.certificate_authorities: ["/etc/pki/root/ca.pem"]

  # Certificate for SSL client authentication
  #ssl.certificate: "/etc/pki/client/cert.pem"

  # Client Certificate Key
  #ssl.key: "/etc/pki/client/cert.key"

  # Optional passphrase for decrypting the Certificate Key.
  #ssl.key_passphrase: ''

  # Configure cipher suites to be used for SSL connections
  #ssl.cipher_suites: []

  # Configure curve types for ECDHE based cipher suites
  #ssl.curve_types: []





#============================== Xpack Monitoring =====================================
# filebeat can export internal metrics to a central Elasticsearch monitoring cluster.
# This requires xpack monitoring to be enabled in Elasticsearch.
# The reporting is disabled by default.

# Set to true to enable the monitoring reporter.
#xpack.monitoring.enabled: false

# Uncomment to send the metrics to Elasticsearch. Most settings from the
# Elasticsearch output are accepted here as well. Any setting that is not set is
# automatically inherited from the Elasticsearch output configuration, so if you
# have the Elasticsearch output configured, you can simply uncomment the
# following line, and leave the rest commented out.
#xpack.monitoring.elasticsearch:

  # Array of hosts to connect to.
  # Scheme and port can be left out and will be set to the default (http and 9200)
  # In case you specify and additional path, the scheme is required: http://localhost:9200/path
  # IPv6 addresses should always be defined as: https://[2001:db8::1]:9200
  #hosts: ["localhost:9200"]

  # Set gzip compression level.
  #compression_level: 0

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

  # Dictionary of HTTP parameters to pass within the url with index operations.
  #parameters:
    #param1: value1
    #param2: value2

  # Custom HTTP headers to add to each request
  #headers:
  #  X-My-Header: Contents of the header

  # Proxy server url
  #proxy_url: http://proxy:3128

  # The number of times a particular Elasticsearch index operation is attempted. If
  # the indexing operation doesn't succeed after this many retries, the events are
  # dropped. The default is 3.
  #max_retries: 3

  # The maximum number of events to bulk in a single Elasticsearch bulk API index request.
  # The default is 50.
  #bulk_max_size: 50

  # Configure http request timeout before failing an request to Elasticsearch.
  #timeout: 90

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

  # Configure SSL verification mode. If `none` is configured, all server hosts
  # and certificates will be accepted. In this mode, SSL based connections are
  # susceptible to man-in-the-middle attacks. Use only for testing. Default is
  # `full`.
  #ssl.verification_mode: full

  # List of supported/valid TLS versions. By default all TLS versions 1.0 up to
  # 1.2 are enabled.
  #ssl.supported_protocols: [TLSv1.0, TLSv1.1, TLSv1.2]

  # SSL configuration. By default is off.
  # List of root certificates for HTTPS server verifications
  #ssl.certificate_authorities: ["/etc/pki/root/ca.pem"]

  # Certificate for SSL client authentication
  #ssl.certificate: "/etc/pki/client/cert.pem"

  # Client Certificate Key
  #ssl.key: "/etc/pki/client/cert.key"

  # Optional passphrase for decrypting the Certificate Key.
  #ssl.key_passphrase: ''

  # Configure cipher suites to be used for SSL connections
  #ssl.cipher_suites: []

  # Configure curve types for ECDHE based cipher suites
  #ssl.curve_types: []

  # Configure what types of renegotiation are supported. Valid options are
  # never, once, and freely. Default is never.
  #ssl.renegotiation: never

#================================ HTTP Endpoint ======================================
# Each beat can expose internal metrics through a HTTP endpoint. For security
# reasons the endpoint is disabled by default. This feature is currently experimental.
# Stats can be access through http://localhost:5066/stats . For pretty JSON output
# append ?pretty to the URL.

# Defines if the HTTP endpoint is enabled.
#http.enabled: false

# The HTTP endpoint will bind to this hostname or IP address. It is recommended to use only localhost.
#http.host: localhost

# Port on which the HTTP endpoint will bind. Default is 5066.