Not all monitoring work happens remotely. Some of it means packing a bag, taking the train across three countries, and sitting down with the customer's team. This is a report from a week-long Icinga...
Consulting on Site: An Icinga Engagement near Basel
Not all monitoring work happens remotely. Some of it means packing a bag, taking the train across three countries, and sitting down with the customer's team. This is a report from a week-long Icinga...
Opsgenie End of Life: Where Open-Source Alerting Stands in 2026
Atlassian stops supporting Opsgenie on April 5, 2027. New sales ended on June 4, 2025, and data left in the platform after the support date gets deleted. If Icinga pushes alerts into Opsgenie today, that route has an expiry date, and so does every on-call rotation and...
Releasing Icinga 2 v2.16.5 and v2.15.6
Today, we are announcing the availability of Icinga 2 v2.16.5 and v2.15.6. These releases contains some security enhancements that fix a couple of minor vulnerabilities. The release for v2.16.5 also contains a bugfix for a regression in the IcingaDB feature that was...
Icinga 2 Meets OpenTelemetry: Native Metrics Export in v2.16
The OTLPMetricsWriter is a new Icinga 2 feature available since v2.16 that exports check plugin performance data as OpenTelemetry-compliant metrics via the OTLP HTTP protocol. With a single configuration object, it connects Icinga 2 to any OTLP-compatible backend like...
Announcing Icinga 2.16.0 and 2.15.3
We are happy to announce the release of two new versions of Icinga 2 today, 2.16.0 and 2.15.3. The first one includes some new features highlighted below, as well as a number of bug fixes and other improvements. The latter one is a small bug fix release that brings...
Modernizing a legacy CMake build-system
CMake tends to have a bad reputation for being to complex and convoluted, but often that notion stems from very old versions of CMake. Sure, CMake is a Turing-complete scripting language, but that is really needed for an ecosystem as complex as that of C and C++. And...
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...
Icinga as Open-Source MSP Monitoring Software: Multi-Tenant Monitoring for IT Service Providers
Icinga is an open-source MSP monitoring software used by managed service providers to monitor multi-tenant client environments at scale. It covers the infrastructure layer that RMM tools don't reach: network devices, custom service checks, SLA reporting, and deep...
Four Modern PHP Features That Show How Far the Language Has Come
PHP has evolved over the years and has become a lot reliable, faster and refined. And with the release of PHP 8, which contained many features (named arguments, union types, attributes, constructor property promotion, match expressions, the null safe operator (?->)...
Icinga Web v2.13 and IPL: PHP 8.5 Support & Module Updates Release
This is not just a version bump. Raising the PHP floor allowed us to modernize the IPL codebase in ways that were not possible before: strict type declarations throughout, and a cleaner, more predictable API surface. We are also introducing two new packages:...
Mirroring Icinga Packages in Air-Gapped and Restricted Environments
When hosting in a secure or corporate environment, Internet access is often restricted or blocked completely. While this makes sense from a security point of view, this introduces some challenges. For one, getting software packages. There are usually two approaches to...
How to Use Git Bisect to Pinpoint Bugs Precisely
A feature that used to work suddenly broke. The problem? There were 300 commits since the last time I knew it worked. Checking each commit manually would take forever. Fortunately, Git has a tool designed exactly for this situation: git bisect. What is Git Bisect? The...
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