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OpenNMS

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description OpenNMS Overview

OpenNMS is an open-source network management platform that provides real-time monitoring and alerting capabilities for IT infrastructure networks, utilizing a web interface for centralized device management and reporting.

help OpenNMS FAQ

Can OpenNMS monitor cloud infrastructure like AWS or Azure?

Yes, OpenNMS offers plugins and native support for monitoring cloud environments such as Amazon Web Services and Microsoft Azure. It uses the Amazon EC2 API and Azure REST APIs to automatically discover and monitor instances running in your cloud tenant.

What is the difference between OpenNMS Horizon and Meridian?

OpenNMS Horizon is the free, open-source community release designed for enterprises and developers who want the latest features. OpenNMS Meridian is the commercially supported, subscription-based branch that provides long-term stability and security patches.

Does OpenNMS use a push or pull model for data collection?

OpenNMS primarily uses a pull model via SNMP, WMI, or HTTP collectors to gather metrics from network nodes. However, it also supports a push model where telemetry data can be sent to the platform using NetFlow, JMX, or its REST API.

What database backend is required to run OpenNMS?

OpenNMS requires PostgreSQL as its backend database for storing node data, events, and configurations. The platform also leverages Elasticsearch or OpenSearch for log management and flow analytics.

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