COVID-19
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The OpenNMS Community on Discourse is a great forum to get help, share ideas, and participate in OpenNMS development.
FOSDEM 2020 – So much open source, so little time
Well, the annual pan-European open source jamboree that is FOSDEM, marking its 20th anniversary this year, has come and gone again. OpenNMS' Craig Gallen provides his thoughts on the event, IoT, and trying to see it all.
WinRM in OpenNMS
The content of this post was accurate at the time it was published, but some of this information may have been superseded by later versions. Please see the currently maintained document on our wsman integration instead. WSMAN support has been present in OpenNMS for a while. The [...]
Dev-Jam 2019
Time flies and we have just finished our fourteenth Dev-Jam in fifteen years. We call it the fifth season- a group of full-time contributors, core community members, and power users get together for our annual OpenNMS Developers Conference. Our venue this year was the Yudof Hall on the University of [...]
Come Discourse with OpenNMS!
The OpenNMS project was registered on 30th March 2000 on SourceForge and in these early days everyone talked about CVS or Subversion. Benjamin Reed migrated the project very early to git and this was a big change for our community, but it paid off so well. It made it [...]
Send notifications with Signal
In some cases it is nice to have notifications from OpenNMS in a separate channel on a smartphone and you don't want to pay for SMS. Here is a tutorial where I use Signal using the signal-cli. This Howto will describe how to download the latest signal-cli tool, link it to your existing [...]
Grafana Performance Dashboards
As Administrator it is sometimes necessary to diagnose performance characteristics between different servers. There are two diagnostic dashboards which can be used to compare performance metrics from SNMP agents running on Microsoft Windows and Linux. The performance metrics are collected with the out-of-the box configuration on a OpenNMS Horizon and OpenNMS Meridian and [...]
Meridian 2018
It is hard to believe that our first release of OpenNMS Meridian was over three years ago. We were struggling with trying to balance the needs of a support organization with the open source desire to “release early, release often”. How do you deal with wanting to be as cutting [...]
Usage of Operator Instructions in Alarms
Monitoring services or metrics and getting alarms isn't complicated. A more interesting question is: How to fix them (fast)? Monitoring systems, even in small or middle sized environments, creates a lot of different alarms. When you are working in a team, sometimes the person who creates a test or configures [...]
