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...
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...
Releasing Icinga 2 v2.15.2, v2.14.8, v2.13.14 and Icinga for Windows v1.13.4, v1.12.4, v1.11.2
Toady, we are releasing multiple new versions of Icinga 2 and Icinga for Windows, all of them fixing a file permission issue present in all installations on Windows. Impact The following paths were created without setting proper permissions, allowing all local users...
Integrating Prometheus Metrics into Icinga Using check_prometheus
Introduction This article explains how to integrate metrics from Prometheus into Icinga checks using the check_prometheus plugin. There can be multiple reasons why this could be desired: Maybe you have different teams with their own monitoring systems, and you need to...
Analyzing configuration problems with Icinga 2
Today, I want to showcase an old, but still very useful, tool when it comes to analyzing and debugging an Icinga 2 configuration: the icinga2 object list command. It can be helpful in a variety of situations, for example when you want to verify that a config change...
Dependency Redundancy Groups in Icinga 2.14
Icinga 2.14 introduced a new feature that allows to better model complex dependencies between your hosts and services: redundancy groups. Let's take an e-mail server as an example. In order to deliver outgoing messages, it has to look up the addresses of the...
Releasing Icinga 2.14 and 2.13.8
We are happy to announce the release of Icinga 2.14.0 and 2.13.8 today. Especially the 2.14.0 release comes with a lot of fixes and improvements and this blog post will highlight the most important ones. There are some breaking changes in 2.14.0, so please make sure...
The Tale of a Single Lock in Icinga 2
To speed up startup and reload times of Icinga 2, we have already put a lot of effort into improving the configuration load performance and still continue to do so for the next major release. In this blog post, I will share the story of one particular issue we found,...
Authenticating Icinga 2 API Users with TLS Client Certificates
When interacting with the Icinga 2 API, the client is commonly authenticated using a password provided via HTTP basic auth. Icinga 2 also supports a second authentication mechanism: TLS client certificates. This is a feature of TLS that also allows the client to send...
New Releases for Icinga 2, Icinga Web and Icinga DB Web available
We've been working on a bunch of minor releases lately. Today we're happy to announce new versions for Icinga 2, Icinga Web and the Icinga DB Web module. Check out the details below. Icinga 2 v2.13.6 Today we are releasing Icinga 2.13.6. The main focus is improved...
How the current OpenSSL vulnerabilities affect Icinga
Recently, OpenSSL published an advisory about two vulnerabilities, X.509 Email Address 4-byte Buffer Overflow (CVE-2022-3602) and X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786). Depending on the operating system you are using, this may affect...
More reliable host and service history with Icinga DB
Today's blog post will give an insight into one of the many things that improved with Icinga DB: how host and service history is written to the database, both by the old IDO feature, as well as what has changed with Icinga DB and how this leads to more reliable...
Embedding Git Commit Information in Go Binaries
Embedding Git commit information in Go Binaries is essential for identifying exact software versions, especially when working with development builds. So it's good if software is able to tell you its version, for example by calling it with --version. For release...
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