Zenoss, OpenNMS, and GroundWork all had booths at SCALE. These are definitely 3 of the heavy hitters in Open Source network monitoring.

Continuing our quest for robust, enterprise-grade open source network monitoring, we tested Icinga Core 2 (version 2.8.1) and the stand-alone Icinga Web 2 interface.

But there were some other really interesting technology trends that these open source network monitoring luminaries were highlighting that are a lot different than the typical “Big 4” (Tivoli ...

In summary, Cacti is a free open source network performance monitoring graphing application. I recommend it to just about every network admin I meet because it does what it claims to do very well.

If so, there’s now a tool that can help. GroundWork has taken Nagios, prettied it up with a graphical front-end, added a MySQL database that contains monitoring profiles for popular open source ...

Network performance monitoring tools must adapt to handle virtual infrastructure, new applications and hybrid cloud environments. Learn whether the network monitoring market is ready in this Q&A.

Network and server monitoring is obviously incomplete without notifications. Nagios has a full e-mail/SMS notification engine, and an escalation layout that can be used to make intelligent ...

Over the last decade or so, open source development has skyrocketed, and network management software has ridden that wave. Many frustrated IT administrators have turned to free tools to monitor ...

They’ve just decided to make the project open source, both hardware and software. The details of the system are available at their GitHub repository. There are two main components to the system.