I've already dropped a hint at this topic in a previous post of mine which reflected the history of Icinga on Windows: Icinga 2.14 will be able to directly speak to the PowerShell daemon REST API...
Icinga for Windows without an Icinga 2 agent
I've already dropped a hint at this topic in a previous post of mine which reflected the history of Icinga on Windows: Icinga 2.14 will be able to directly speak to the PowerShell daemon REST API...
Making Use of Previous State in Icinga2 Check Commands
When writing a custom check plugin for Icinga 2, there are situations where in addition to observing the current state of a system, taking the past into account as well can be helpful. A common case for this is when the data source provides counter values, i.e. values...
Icinga 2 API and debug console
Have you ever experienced configuration issues, such as notifications not being sent as expected or apply rules not matching all expected objects, probably due to an incorrectly set custom variable? Icinga 2 has several options to assist you in such situations. Last...
Our Workflow for Security Releases using GitHub Security Advisories
We recently started using GitHub Security Advisories as part of our workflow for pushing out security releases. This post will give a brief introduction on how they work, how we use them, some of their limitations, and how we overcome them. We are still experimenting...
Icinga 2.12.5 + 2.11.10: Security Releases
Today we are releasing Icinga 2.12.5 and 2.11.10, including two security fixes that may lead to privilege escalation for authenticated API users. Depending on your setup, manual intervention beyond installing the new versions may be required, so please read the...
Monitoring the Monitor: How to keep a watch on Icinga 2
The question is (probably) older than monitoring itself: Who monitors the monitor? While Icinga comes with countless options to monitor a wide range of devices and applications, at some point you will ask yourself how you can observe if Icinga itself is having errors....
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...
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