For decades, PHP has powered the web using a simple model: process a request, send a response, then shut down. This model, especially in the form of CGI and PHP-FPM, is easy to understand but...
Beyond PHP-FPM: Modern PHP Application Servers
For decades, PHP has powered the web using a simple model: process a request, send a response, then shut down. This model, especially in the form of CGI and PHP-FPM, is easy to understand but...
IPL: How to create lists with ipl-web
In my previous blog post, I explained how to build lists using ipl-web widgets. That method will soon be deprecated due to its complexity. With the recent ipl-web release, we have introduced a simpler and more flexible approach to building lists, using a lightweight...
Icinga 2 DSL – Variable Scopes
Ever wondered how Icinga 2 manages all those variables, and how it knows which one to use? In this blog post, we will explore all the different variable scopes in Icinga 2, and by the end, you will know what this mysterious error message means when you see it in your...
How Quick User Tests Help Us Make Better UI Decisions in Icinga Web
Designing user interfaces for Icinga Web is always a bit of a balancing act. Once we’ve worked through all the technical and conceptual details of a new feature, it can be tough to step back and see things from a fresh user’s point of view. We as developers know too...
Automation: Data processing of imported data using property modifiers in Icinga Director
The raw data imported from the external sources (CSV, SQL, REST API, LDAP, etc.) is usually not in the right format. Hence, they have to be processed or converted before they are used to modify objects using synchronization rules. To do this, Icinga Director provides...
Releasing Icinga Web v2.11.5 and 2.12.3, Icinga Director 1.10.4 and 1.11.4, Icinga Reporting 1.0.3
Update (2025-03-26 16:45:00 UTC) We released a hotfix release for Icinga Web 2.11 and 2.12 afterwards. Please install 2.11.6 and 2.12.4, respectively. -- Today we release three updates, each for an integral component of Icinga, which all close a total of five security...
How To Pick The Correct Metrics For Your Monitoring
This is a guest blogpost by Adam Sweet from the Icinga Partner Transitiv Technologies. Since this is a longer post, we added a tl;dr at the end. For many, host and application monitoring is an afterthought at the end of a project. Some people don’t think about...
Releasing Icinga DB v1.3.0
Today we are releasing a new version of Icinga DB, version 1.3.0. This is a maintenance release, integrating the container setup directly into Icinga DB. Most importantly, first-class support for configuring Icinga DB completely via environment variables has been...
Looking for a PRTG Alternative? Here’s Why You Should Consider Icinga
If you’re reading this, chances are high you’re looking for a PRTG alternative and considering switching from Paessler PRTG to Icinga. Maybe it’s the rising costs of PRTG, or maybe you want a monitoring solution that gives you more flexibility and control. Whatever...
Monitor Microservices Effectively: A Practical Guide
Contents What Is Microservice Monitoring? Why Monitoring Microservices Is Different – and What It Means for You Key Metrics and Signals You Should Track Best Practices for Monitoring Microservices Monitoring Tools for Microservices: What to Look For Microservice...
Icinga 2 Insights With Event Streams
There are many ways to interact with the data that Icinga 2 collects, processes, and produces. The most common is probably Icinga Web, which displays checks in all the colors of a traffic light. Icinga 2 also comes with several metrics or performance data writers. But...
Let’s Encrypt Stops Expiration Emails – How to Ensure Your Certificates Stay Valid with SSL Certificate Monitoring
No More Expiration Emails – What Now SSL/TLS certificates are critical for secure communication, and keeping track of their expiration is essential. Until now, Let’s Encrypt has sent email notifications when certificates were about to expire. However, as of June 2025,...
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