In addition to commercial, for-pay monitoring software, there are free open-source options. Here's a look at the ones from Icinga, Nagios, Observium and Zabbix.

Icinga's management software is well-documented, easy to install and has plenty of plug-ins, but could benefit from an easier install Continuing our quest for robust, enterprise-grade open source ...

OpenNMS delivers robust network monitoring with comprehensive fault detection and performance analytics, but demands ...

From network and server monitoring to trending, graphing and even switch and router configuration backups, these utilities will see you through.

In network monitoring, the whole goal is to be able to monitor the right things. You don’t want too much data, or you’ll be flooded. Too little, and you miss important info.

In the third part of a series, Tom Fenton explains how he set up and installed ntopng, along with detailing where it will sit in his home/lab network and how he redirected traffic to it.

The best network monitoring tools include Zabbix, Datadog, and Cacti. Compare features, pricing, and supported platforms among our top picks.

This free and open-source tool is great for monitoring your network traffic with ease Homepage on Sniffnet Set notifications on sniffnet ...

Excellent open source software tools are available to help you keep a close watch over your network, as well as meet many other needs of the busy network manager.

[Kasey] and [Guyzmo] have been working for the past couple of years on a side project that lets them monitor pollution using a network of sensors. They’ve just decided to make the project open ...