We performed a comparison between Nagios Core and OpenNMS based on real PeerSpot user reviews.
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Nagios Core is ranked 7th in Network Monitoring Software with 46 reviews while OpenNMS is ranked 77th in Network Monitoring Software. Nagios Core is rated 8.0, while OpenNMS is rated 0.0. The top reviewer of Nagios Core writes "An Open Source Fully Featured Data Centre Monitoring Tool". On the other hand, Nagios Core is most compared with Nagios XI, Zabbix, Icinga, Centreon and WhatsUp Gold, whereas OpenNMS is most compared with LibreNMS, Observium, Checkmk and PRTG Network Monitor.
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