With each iteration, open-source network management tools get better. OpenNMS, Zenoss Core, NetXMS and Sensu Core deliver comprehensive monitoring, flexible reporting, cross-platform support and more.

Here are 26 network management tools based on open source and available at little or no cost.

InfoWorld’s Best of Open Source Software Awards (aka Bossies) are selected annually by InfoWorld Test Center editors and reviewers. Our picks for the best networking software and tools of 2010 ...

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.

Next month, a free tool created by Infoblox could help IT departments get a better grasp of the growing complexity of their network.

It's not just a good idea anymore, the OpenDaylight Project has released its first open-source software-defined network release: Hydrogen.

Several open source networking vendors offer free tools that conform to the GNU licensing strategy and whose source code is readily downloadable on the Internet. If you hate to spend money, if you ...

The most popular and proven open source network monitoring tool — Nagios — doesn’t even appear in the first screen of the retrieved search results.

Open source network analysis tools can help network monitoring. Try out the open source network protocol analyser Wireshark inside a VMware Player Guest OS.

In this white paper, we'll provide an overview of some of our favorite open source tools as well as tips on how to use them for network security.