If you've been using Icinga 2 for a while, you probably know the built-in checks cover a lot of ground: disk space, CPU, memory, ping. But sooner or later you'll run into something specific to your...
How to Create Your Own Plugins and Check Commands in Icinga 2
If you've been using Icinga 2 for a while, you probably know the built-in checks cover a lot of ground: disk space, CPU, memory, ping. But sooner or later you'll run into something specific to your...
Understanding Namespaces in Icinga 2 DSL
Last time, we explored the concept of variable scopes in Icinga 2, which help you manage and organize your DSL configurations effectively. As promised, today we'll dive into another, how shall I say, advanced topic: Namespaces in Icinga 2. What are Namespaces?...
Exploring C++20 Coroutines: A Practical Look at Stackless Coroutines vs Boost.Coroutine2
Introduction Icinga 2 makes heavy use of Boost.Coroutine2 in our network code, which are stackful coroutines that are designed to work well with the IO operations from Boost.Asio. This has proven to be a challenge whenever we wanted to asynchronously await things...
Releasing Icinga for Windows v1.9.0 – An Isolated Experience
Today we are happy to announce that we are releasing Icinga for Windows v1.9.0. This release cycle is the biggest one yet, because we are releasing new versions for everything! This includes Framework Basic Plugins MSSQL Plugins Hyper-V Plugins Cluster Plugins...
Icinga 2 IRC notifications. The complete guide
A few months ago I wrote about sending notifications to Rocket.Chat. While that messaging tool is quite powerful, one may also prefer to keep it simple. So let's also address the good old IRC. No test system? No problem! Setting up an IRC daemon is pretty easy:...
Replay Log in Distributed Icinga Environments
An essential part of a distributed monitoring environment with Icinga that includes master, satellite and agent nodes is the replay log functionality. The replay log is a built-in mechanism to ensure nodes in a distributed setup keep the same history e.g. check...
Icinga 2 Rocket.Chat notifications. The complete guide
About one year ago the NETWAYS colleagues showed you how to let Icinga 2 notify users through XMPP/Jabber. Now it's time to also cover the somewhat more fancy Rocket.Chat. No Rocket.Chat? No problem! Setting up a test system is pretty easy: Clone this Git repository...
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...
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...
Releasing Icinga 2.13.0
Today we're releasing our next major version of Icinga 2. Icinga 2.13 includes many long awaited enhancements and bug fixes, but also a lot of smaller changes. Units of measurement This release adds a bunch of new and improved UoMs (Units of measurement) to Icinga 2....
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...
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