Ship logs from Wazuh

Configuration

Before you begin, you’ll need:

• Filebeat 7 or Filebeat 6
• Root access

Configure Wazuh for JSON logging

In the Wazuh configuration file (/var/ossec/etc/ossec.conf), find the <logging> tag, and set the <log_format> property to json.

<logging>
  <log_format>json</log_format>
</logging>

Restart Wazuh.

sudo systemctl restart wazuh-manager

Download the Logz.io public certificate to your Filebeat server

For HTTPS shipping, download the Logz.io public certificate to your certificate authority folder.

sudo curl https://raw.githubusercontent.com/logzio/public-certificates/master/AAACertificateServices.crt --create-dirs -o /etc/pki/tls/certs/COMODORSADomainValidationSecureServerCA.crt

Add Wazuh as an input

In the Filebeat configuration file (/etc/filebeat/filebeat.yml), add Wazuh to the filebeat.inputs section.

Replace <<LOG-SHIPPING-TOKEN>> with the token of the account you want to ship to.

# ...
filebeat.inputs:
- type: log

  paths:
  - /var/ossec/logs/alerts/alerts.json

  fields:
    logzio_codec: json

    # Your Logz.io account token. You can find your token at
    #  https://app.logz.io/#/dashboard/settings/manage-accounts
    token: <<LOG-SHIPPING-TOKEN>>
    type: wazuh
  fields_under_root: true
  encoding: utf-8
  ignore_older: 3h

If you’re running Filebeat 7, paste this code block. Otherwise, you can leave it out.

# ... For Filebeat 7 only ...
filebeat.registry.path: /var/lib/filebeat
processors:
- rename:
    fields:
    - from: "agent"
      to: "filebeat_agent"
    ignore_missing: true
- rename:
    fields:
    - from: "log.file.path"
      to: "source"
    ignore_missing: true

If you’re running Filebeat 6, paste this code block.

# ... For Filebeat 6 only ...
registry_file: /var/lib/filebeat/registry

Set Logz.io as the output

If Logz.io is not an output, add it now. Remove all other outputs.

Replace <<LISTENER-HOST>> with your region’s listener host (for example, listener.logz.io). For more information on finding your account’s region, see Account region.

# ...
output.logstash:
  hosts: ["<<LISTENER-HOST>>:5015"]
  ssl:
    certificate_authorities: ['/etc/pki/tls/certs/COMODORSADomainValidationSecureServerCA.crt']

Start Filebeat

Start or restart Filebeat for the changes to take effect.

Check Logz.io for your logs

Give your logs some time to get from your system to ours, and then open Kibana.

You can search for type:wazuh to filter for your logs. Your logs should be already parsed thanks to the Logz.io preconfigured parsing pipeline.

If you still don’t see your logs, see log shipping troubleshooting.