Each event collected by the Wazuh agent is transmitted to the Wazuh Manager. The Manager will assign the event a severity level depending of which rules it matches from the ruleset. By default it will only log alerts with a severity level of 3 or higher.
The alert level threshold is configured in the
ossec.conf file using the
<alerts> XML tag. The available options for this are detailed in Alerts reference
<ossec_config> <alerts> <log_alert_level>6</log_alert_level> </alerts> </ossec_config>
This will set the minimum severity level that will trigger alerts that will be stored in the
alerts.log and/or the
When any value is changed in the
ossec.conf file, the service must be restarted before the changes will take effect.
# systemctl restart wazuh-manager
For SysV Init:
# service wazuh-manager restart