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 also pretty easy to move our project [...]

By |2019-04-04T23:01:26+00:00December 13th, 2018|Categories: Blog, News|Tags: , , |0 Comments

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 Signal account and how to configure [...]

By |2019-04-04T23:01:26+00:00November 2nd, 2018|Categories: Blog|Tags: , |0 Comments

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 are published on the Grafana dashboard repository. [...]

By |2019-04-04T23:01:26+00:00October 4th, 2018|Categories: Blog|Tags: , |0 Comments

Meridian 2018

author: Tarus Balog 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 edge as possible but to [...]

By |2019-04-09T20:11:03+00:00September 27th, 2018|Categories: Blog|Tags: , |0 Comments

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 a threshold that throws an alarm [...]

By |2019-04-04T23:01:27+00:00July 9th, 2018|Categories: Blog|Tags: , , |0 Comments

How to build Docker images from branches

In OpenNMS we use Atlassian Bamboo which runs all our tests and build also the packages which can be installed on different operating systems. It plays an important role as quality gate for changes going into the code base. Our Bamboo is public available and can be seen by everyone. There are two type of branches, one following a pattern [...]

By |2019-04-04T23:01:27+00:00July 8th, 2018|Categories: Blog|Tags: , |0 Comments

iNOG and Ripe NCC Hackathon

Our UK OpenNMS ambassador, Craig Gallen, gave us a hint about a meeting from the Irish Network Operators Group (iNOG) followed by a 2 day Network Operators Tools Hackathon co-hosted by Ripe NCC. I've attended a few NOG meetings already and like the tech-driven and very friendly atmosphere. Luckily, The OpenNMS Group sponsored the trip and so I was able to [...]

By |2019-04-04T23:01:27+00:00July 3rd, 2018|Categories: Blog, Event|Tags: , , , |0 Comments

Smart Debug Logging

Sometimes you have to set a specific OpenNMS daemon to DEBUG mode to find issues in your configuration. Depending of the environments size OpenNMS can create many log entries while being in DEBUG mode. But in some cases the log rotation is faster than an editor can open a log file and the amount of logs [...]

By |2019-04-04T23:01:27+00:00June 22nd, 2018|Categories: Blog|Tags: , , |0 Comments

Running an OpenNMS Minion with Docker

Running a Minion with Docker is relatively easy, you just need to have Docker installed. It makes also updating the Minion very easy cause you can follow the tags latest for latest stable version or trying a bleeding snapshot. You can configure everything through environment variables. At a bare minimum you need something like this: docker run --rm -d \ [...]

By |2019-04-04T23:01:27+00:00May 20th, 2018|Categories: Blog, How To|Tags: , |0 Comments

Running OpenNMS Horizon in Docker

Running applications in containers provides many benefits, and it's not just hype. Higher velocity to maintain changes while keeping a service available. Scaling your software by just spinning up more instances to handle load. Container images allow you to manage your application dependencies and link them all to a portable and standardised runnable container image. The [...]

By |2019-04-04T23:01:27+00:00January 9th, 2018|Categories: Blog, How To|Tags: |0 Comments