How does the Zabbix server connect to the proxy in passive mode?

In passive mode, the Zabbix server establishes a direct connection to the proxy. This connection is crucial for communication because the server relies on the proxy to gather data from the monitored hosts but initiates the communication itself. The proxy waits for these connections, and when the server reaches out, it retrieves the latest data collected by the proxy.

This mode allows for efficient data handling and ensures that the server can access the proxy’s data as needed without the proxy having to push updates at defined intervals. The design of this communication method helps maintain stability and reduces the chance of data loss during transmission. By directly connecting to the proxy, the Zabbix server can also ensure it has the most up-to-date information regarding monitored resources.