Imagine you have one more special thing to monitor. While our Icinga 2 can observe infrastructure of almost any size, it still needs a plugin for each kind of check. Unfortunately not every command...
Turns any command into a plugin: check_rungrep
Imagine you have one more special thing to monitor. While our Icinga 2 can observe infrastructure of almost any size, it still needs a plugin for each kind of check. Unfortunately not every command...
Managing Multiple Service Instances with a Systemd Generator
When working with systemd services in Linux, you might encounter situations where multiple instances of a service need to be managed dynamically. When I had to develop a solution to monitor multiple Kubernetes clusters with Icinga for Kubernetes, I ran into exactly...
How to do Agentless Monitoring with check_by_ssh
The fundamentals of Icinga 2 are check plugins. They are being executed and their return value is mapped to either Host or Service objects. Everything else follows on top. These check plugins can be either from the Monitoring Plugins or custom. While their origin does...
Releasing Icinga DB v1.0-RC2 – Key Updates & Improvements
We are super excited to release the second Release Candidate of Icinga DB! This release comes after many hours, days and months of experimenting, re-thinking and rebuilding our own code and marks a huge step towards a new data backend for Icinga. Why Icinga DB Since...
Icinga DB Housekeeping
Introduction We all know that the history data is important in monitoring. But this history data becomes obsolete over time and those records become garbage which would only fill up space. So it is important to remove obsolete history records to free up space. We call...
Installing Additional Modules in the Icinga Web 2 Docker Container
The Docker images we provide for both Icinga 2 and Icinga Web 2 already contain quite a number of modules. For example, the Icinga Web 2 image contains all the Web modules developed by us. But one of the main benefits of Icinga is extensibility, so you might want to...
Polishing the Icinga DB Web User Interface
When redesigning the new Icinga DB Web interface elements we already started establishing consistent design elements. This is even more supported by developing the Icinga PHP Library (IPL) from the ground up. IPL makes developing reusable widgets a lot easier for...
How to monitor a web server running NGINX|httpd
Web servers are software services that store resources for a website and then makes them available over the World Wide Web. These stored resources can be text, images, video and application data. Computers that are interfaced with the server mostly web browsers...
What to expect from an Icinga Fundamentals training
Let's set the scene: You just started out with Icinga, maybe because you have realised your need for monitoring or you have inherited an environment. Maybe your boss just decided that this is what you are going to do now. So you are now sitting in front of the...
Releasing Icinga for Windows v1.6.0 – Easier and more Secure
Today we are happy to announce the release of Icinga for Windows v1.6.0, which we already demonstrated on YouTube last week. This is one of our largest releases so far, as we improve the entire usability, flexibility, and security of Icinga for Windows. The following...
MySQL queries – faster than light (almost)
(The title image from NASA is available under the CC BY 2.0 license.) At the moment I'm working at a tool for migrating Icinga 2 IDO history to Icinga DB. Sure, one could also run IDO and Icinga DB in parallel for one year and then switch to Icinga DB if they only...
Icinga 2.13.1 + 2.12.6 + 2.11.11: Security and Bugfix Releases
Today we're releasing the security and bugfix versions 2.13.1, 2.12.6 and 2.11.11. The main focus of these versions is a security vulnerability in the TLS certificate verification of our metrics writers ElasticsearchWriter, GelfWriter, InfluxdbWriter and...
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