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manual:config:events:sources

2 Other event sources

Discovery events

Zabbix periodically scans the IP ranges defined in network discovery rules. Frequency of the check is configurable for each rule individually. Once a host or a service is discovered, a discovery event (or several events) are generated.

Zabbix generates the following events:

EventWhen generated
Service Up Every time Zabbix detects active service.
Service Down Every time Zabbix cannot detect service.
Host Up If at least one of the services is UP for the IP.
Host Down If all services are not responding.
Service Discovered If the service is back after downtime or discovered for the first time.
Service Lost If the service is lost after being up.
Host Discovered If host is back after downtime or discovered for the first time.
Host Lost If host is lost after being up.

Active agent auto-discovery events

Active agent autoregistration creates events in Zabbix.

If configured, active agent autoregistration event is created when a previously unknown active agent asks for checks or if the host metadata has changed. The server adds a new auto-registered host, using the received IP address and port of the agent.

For more information, see the active agent autoregistration page.

Internal events

Internal events happen when:

  • an item changes state from 'normal' to 'unsupported'
  • an item changes state from 'unsupported' to 'normal'
  • a low-level discovery rule changes state from 'normal' to 'unsupported'
  • a low-level discovery rule changes state from 'unsupported' to 'normal'
  • a trigger changes state from 'normal' to 'unknown'
  • a trigger changes state from 'unknown' to 'normal'

Internal events are supported since Zabbix 2.2. The aim of introducing internal events is to allow users to be notified when any internal event takes place, for example, an item becomes unsupported and stops gathering data.

Internal events are only created when internal actions for these events are enabled. To stop generation of internal events (for example, for items becoming unsupported), disable all actions for internal events in Configuration → Actions → Internal actions.

If internal actions are disabled, while an object is in the 'unsupported' state, recovery event for this object will still be created.

If internal actions are enabled, while an object is in the 'unsupported' state, recovery event for this object will be created, even though 'problem event' has not been created for the object.