description OpenNMS Horizon Overview
OpenNMS Horizon is a web-based management platform that provides real-time monitoring and alerting for IT infrastructure, including servers, networks, and applications, offering customizable dashboards and reporting capabilities.
help OpenNMS Horizon FAQ
Is OpenNMS Horizon free and open source?
Yes, OpenNMS Horizon is a free, open-source network management platform released under the AGPLv3 license. The OpenNMS Group also offers a commercially supported version called OpenNMS Meridian, which provides long-term stability releases for enterprise environments that require guaranteed support and maintenance.
How does OpenNMS Horizon compare to Nagios for infrastructure monitoring?
OpenNMS Horizon offers a more comprehensive out-of-the-box monitoring suite than Nagios Core, including built-in event management, service assurance, and customizable dashboards without requiring extensive plugin installation. Nagios tends to be lighter and simpler for basic host and service checks, while OpenNMS is designed for larger-scale, distributed infrastructure with hundreds or thousands of nodes.
What monitoring protocols does OpenNMS Horizon support?
OpenNMS Horizon supports a wide range of monitoring protocols including SNMP (versions 1, 2c, and 3), ICMP, JMX for Java application monitoring, WMI for Windows systems, and HTTP-based health checks. It also supports flow-based network traffic analysis using NetFlow, sFlow, and IPFIX protocols.
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