SSL certificates are the foundation of secure communication on the web. They protect data integrity, enable encryption, and verify identities. But even a single expired certificate can cause...
SSL Certificate Monitoring and Management
SSL certificates are the foundation of secure communication on the web. They protect data integrity, enable encryption, and verify identities. But even a single expired certificate can cause...
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...
Releasing Icinga for Windows v1.13.0
Today we are happy to announce that we released Icinga for Windows v1.13.0 a couple of days ago. We have already talked about the changes coming to v1.13.0 with the beta blog-post last year in more depth, and will focus only on some core changes here. Improved...
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...
How to monitor your first Host with Icinga Director
Creating a new Host within the Icinga 2 configuration files is fairly easy. Basically you only have add an object of the type "Host" to a config file and reload Icinga 2. Doing the same with Icinga Director is even easier, you don't even have to bother with terminal...
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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