I use NixOS by the way. And today I'm going to show you how to operate a simple Icinga setup using that operating system. I.e. a single node with checks and notifications. In contrast to Icinga Web...
Using Icinga 2 on NixOS
I use NixOS by the way. And today I'm going to show you how to operate a simple Icinga setup using that operating system. I.e. a single node with checks and notifications. In contrast to Icinga Web...
Enhanced Icinga 2 Container Images
As some of you might have already noticed, we recently gave our official Icinga 2 container image builds a complete overhaul. These new images are currently available only as snapshot builds but will replace the existing stable images with the next Icinga 2 v2.16.0...
Extending Unit-Testing on Icinga2
Unit-Testing is important Obviously nobody is disagreeing with this. It's just that during ongoing development and while focusing on features and bug-fixes, testing often falls behind in priority, especially when developers would need to write tests for existing or...
Calculating a state over multiple services
These days many setups have a lot of redundancy and you may not want to send notifications during the night, just because one of multiple http servers has a problem. This blog post will show you how to setup a single service with a state combining multiple other...
Debugging Filters and Apply Rules using the Script Debugger
Have you ever been in a situation where something in your Icinga configuration did not work as expected and you ended up doing small changes and reloading Icinga over and over again? This can be especially tricky with apply rules and filters if they don't match the...
Revoke certificate of an Icinga endpoint
A Certificate Revocation List (CRL) is a list of certificates that have been revoked by the issuing Certificate Authority (CA) before their scheduled expiration date. Those certificates should no longer be trusted. A client application such as an Icinga Agent can use...
Using Thola for monitoring your network devices
This is a guest blogpost by Alexander Biehl from the Thola development team. --- Once upon a time there was a small company in the south west of Germany that used an old check plugin for monitoring its network devices. But as their network got bigger and bigger over...
How to connect to the Icinga 2 API via the Icinga Console
Today I will show you a couple of small functions you can use with the Icinga Console. Using the Icinga Console can help with scripting in general and provides a quick and easy-to-use way of extracting information from your Icinga environment. We will take a look at...
Icinga 2 Config Sync: DIY Edition
Two weeks ago, Icinga 2 Config Sync: Behind the Scenes explained how the config sync in Icinga 2 works and how you can look behind the scenes. Today, we will put our knowledge from that post to the test and try to manually replicate the config sync. The most important...
Icinga 2 Config Language (DSL): Advanced Apply Rules
As many users of Icinga don't know what the DSL has to offer, I'm going to show you how to use custom variables and apply for rules to make your life easier when writing configuration for your Icinga environment. Idea In this example we will use custom variables on a...
Icinga 2 Config Sync: Behind the Scenes
Today's blog post dives into the internals of Icinga 2 and will give you an overview how the config synchronization works internally. We will take a small cluster as an example and follow the configuration files through the synchronization mechanism. We assume some...
Releasing Icinga 2.11.8 + 2.12.3: Security and small improvements
Today we are releasing the 2.11.8 and 2.12.3 security & bugfix releases. Both versions contain the same changes. They resolve a security vulnerability with revoked certificates being renewed automatically ignoring the CRL, issues with high load on Windows...
Subscribe to our Newsletter
A monthly digest of the latest Icinga news, releases, articles and community topics.
