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Zabbix Trapper
Port 10051 is primarily used by Zabbix, an open-source monitoring solution, to facilitate communication between the server and its agents or clients. The port functions as a 'trapper' endpoint, receiving passive monitoring data, allowing the server to collect metrics, trigger alerts, and maintain health insights without requiring continuous polling..
Zabbix Trapper on port 10051 serves as the main inbound communication channel for data sent by Zabbix agents, proxies, and external scripts. Unlike active checks that require a server poll to collect data, the trapper model relies on these components pushing metrics directly to the server. This passive collection reduces latency and network overhead, especially in large, distributed environments where thousands of monitored devices send frequent updates.
The protocol communication over port 10051 typically involves lightweight, JSON-based payloads or Zabbix's native data format. It supports a variety of item types, including numeric values, text messages, and complex structured data, enabling flexible monitoring capabilities. The server listens persistently on this port to handle incoming connections from authorized agents and proxies, allowing seamless integration of custom scripts and third-party monitoring tools.
Because Zabbix supports both active and passive checks, port 10051 is critical for the passive mode but also facilitates trap-based alerting and flexible data ingestion methods. Configurations allow administrators to tweak queue sizes, connection thresholds, and timeouts to optimize performance and reliability, ensuring that the monitoring infrastructure scales effectively with network growth.