What is the definition of "service dependency" in Zabbix?

Service dependency in Zabbix refers to a defined relationship where the status of one service is directly linked to another. This means that if one service experiences a problem, it can affect the perceived status of the dependent service. For example, if a web server is dependent on a database server, and the database server goes down, the web server would also be treated as having issues, even if it is functioning properly on its own.

This concept allows for more intelligent monitoring and alerting, as it helps to reduce alert noise. By recognizing the interdependencies between services, Zabbix can prioritize notifications and correlate events, leading to better incident response and reduced operational overload for teams managing these services.

Grouping services by geographical location, defining user authentication levels, and alert types related to system performance issues do not capture the essence of how service statuses can influence one another as defined by service dependencies in Zabbix. These other options address different aspects of monitoring and system management that do not pertain to the relationship between services.