Like many, I’ve been experimenting with Claude recently and tried to explore not only its capabilities, but of course also its limitations. The illusion that I could assign it a task and the AI tool...
I tried to build a design system with Figma and Claude from Scratch
Like many, I’ve been experimenting with Claude recently and tried to explore not only its capabilities, but of course also its limitations. The illusion that I could assign it a task and the AI tool...
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 setup that no existing plugin handles. That's where writing your own...
Get Valid TLS Certificates for Icinga Web Despite a Firewall
Lots of big companies lock down their IT infrastructure in the internal network, sometimes they even use only locally mirrored repositories. I totally understand this, especially since our CVE-2024-49369. Nowadays, when LLMs find security holes even in OpenBSD, you...
XSS Vulnerability in Icinga PHP Library
Today we announce a security update for Icinga PHP Library. It solves a severe cross-site scripting attack vulnerability and affects multiple Icinga products at once. It has been published as GHSA-55wf-5m3q-6jjf. Installing the update v0.19.2 as soon as possible is...
How to undo Git reset hard?
You just finished a long interactive rebase. You hit enter. Your commit history looks… wrong. There is a bunch of things that could go wrong: messed up an interactive rebase accidentally ran git reset --hard merged the wrong branch rebased onto the wrong base You...
Icinga Director v1.11.6 Release
We are happy to announce the release of Icinga Director version 1.11.6. This release addresses several important bug fixes and introduces improvements that enhance the overall stability of Icinga Director. Database Schema Upgrade Columns storing large strings for...
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?...
Releasing Icinga for Windows v1.14.0 – We have been cooking!
As Bernd mentioned at last year's OSMC, the Icinga for Windows team was heavy working on v1.14.0 which was going to be released in December. Well, we are off a couple of days, but we believe the wait was worth it! Security Update Let's first get the elephant...
Icinga Insiders: Collaborating With Users to Improve Icinga Web
Icinga Insiders: How User Research Shapes the Future of Icinga Web Icinga Insiders is one of our core initiatives for involving users directly in the ongoing development of Icinga Web, its modules, and new functionality. Through structured research sessions, we gain...
Releasing Icinga DB v1.5.1
Today we are announcing the release of Icinga DB version 1.5.1. This release addresses the issue of leaking SQL prepared statements when Icinga DB is configured as a source for Icinga Notifications. Each time the custom variables for an Icinga Notifications event were...
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...
Drowning in Alert Fatigue? How to Regain Control of Your Monitoring
Introduction: Why Alert Fatigue Hits Sysadmins Sooner or Later If you’ve ever muted your phone during a maintenance window, only to miss a real outage an hour later, you’re not alone. Sysadmins on Reddit and beyond often describe feeling like they’re drowning in...
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