Blog

As soon you provide more than a handful of services monitoring and centralized logging becomes essential. Especially when you run the Net-SNMP daemon with Docker you will notice your logs get spamed with some messages like Cannot statfs /run/docker/netns/...: Permission denied everytime you query...

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Now and then websites are really important for daily business and private life. You can nearly buy everything on websites, find information, meet friends, watch movies and much more. All the worse if your website is not working and you don't notice it or your customer first. But even if you already...

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A group of four students from Southampton Solent University, mentored by Dr. Craig Gallen, used OpenNMS to win the top prize at the TeleManagement Forum {open}:hack competition at the TM Forum Live conference in Nice, France.

{open}:hack Winner Team

Now, a little background is in order. Dr. Gallen founded Enti...

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Easterhack 2017 - Post Mortem

11, May Ronny Trommer

Easterhack 2017

Hello World, We had an Easterhack some days ago, as some of you remember. Marcel Fuhrmann and Markus von Rüden organised the event and Marcel provided a place in his home for the OpenNMS guys to hack, eat, drink, talk and have some fun. Here are a few things what we did (aside from playing Guitar...

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Process Monitoring with SNMP

09, May Marcel Fuhrmann, Ronny Trommer

Monitoring processes that don't provide network services is a default use case in network monitoring. Because they aren't providing network services, black box testing won't work- you need an agent on your system providing an inside view of your operating system. The Net-SNMP agent is easy to instal...

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Restart Detection

04, May Marcel Fuhrmann

Most of today's servers run in virtual environments and Java applications in containers. Sometimes these applications or servers unexpectedly restart and can often go unnoticed because a restart can be much faster then a polling cycle.

If SNMP is enabled, the hrSystemUptime can detect restarts fr...

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Reboot & Update Monitor

18, Apr Marcel Fuhrmann

Security updates are important and need to be installed regularly and as quick as possible.

In Linux distributions like Ubuntu and Debian this is easily done with the apt package manager. Most of the security updates can be installed without rebooting your system. If you upgrade your Kernel it is...

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Automated Orderings

05, Apr Marcel Fuhrmann

A self-sufficient printer environment

OpenNMS usually stands for network and server monitoring. But like every good tool you can use (or misuse?!) OpenNMS in other scenarios as well.

If that is a good solution, is completely your choice! :-)

Imagine, you have a big printer environment, distrib...

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We are happy to announce our annual meeting Dev-Jam, the annual OpenNMS Developers' Conference. This year will mark our twelfth meeting.

For the first time we will be holding Dev-Jam outside of the United States. About a third of the attendees come from other countries and due to recent changes...

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Online Training OpenNMS 101

31, Jan Ronny Trommer

While our documentation is constantly improving, it is easier for newcomers to follow someone who explains ideas and concepts of OpenNMS. Tarus Balog started a great video tutorial session which gives everything you need to get started with OpenNMS. The online training is divided into several modu...

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