What are triggers used for in Zabbix?

Triggers in Zabbix are used to monitor the status of hosts or services and generate alerts or trigger actions when specific conditions are met. Triggers can determine whether a host or service is in a faulty state based on defined expressions, such as the CPU usage of a host exceeding a threshold or a service ceasing to run. When the trigger status changes, notification actions can be triggered, such as sending emails, text messages, or executing custom scripts. Triggers are a vital component in the Zabbix monitoring system, helping administrators promptly detect and resolve issues to ensure the normal operation of systems.