First of all, if you own a domain, the following text is for you. In production you obviously want to reduce outages. And an outage of a DNS domain as such takes down all services under that domain,...
Monitoring domains and DNSSEC properly
First of all, if you own a domain, the following text is for you. In production you obviously want to reduce outages. And an outage of a DNS domain as such takes down all services under that domain,...
Icinga for Windows without an Icinga 2 agent
I've already dropped a hint at this topic in a previous post of mine which reflected the history of Icinga on Windows: Icinga 2.14 will be able to directly speak to the PowerShell daemon REST API without even fork(2) or exec(3) for a subprocess (...). In fact this...
Releasing Icinga v2.14.2
Version 2.14.2 is a hotfix release for master nodes that mainly fixes excessive disk usage caused by the InfluxDB writers. Icinga 2.14.0 introduced a change to the InfluxDB Writer that resulted in InfluxDB storing the data less efficiently. This release restores the...
Critical hotfix releases: Icinga 2.14.1 and 2.13.9
Imagine you've installed Icinga 2.0.0 on 2014-06-06, the day it was released. You've tested its features, over the time we've added more of them and by now your test cluster went in production. An Icinga cluster operates on TLS which involves a root CA, typically...
Icinga 2 API with Let’s Encrypt certificates, just for fun
In our community forum Michael already outlined the possibility to operate Icinga 2 with an external certification authority, not the one Icinga 2 generates by itself. Thomas, one of our NETWAYS colleagues, reported his experience in that field: in short, it's easy to...
Monitor all operating systems with one solution: Icinga 2
We as a company build monitoring software. And we have committed to diversity. It is just logical and consequent for us to apply this principle not only to the people who do the work, but also to the work itself. To the monitoring software we build. Especially to...
The future of Icinga + Windows: Schrödinger’s agent?
I remember as if it was yesterday. I participated at the OSMC 2014 and watched Bernd's talk "Current state of Icinga". In the live demo Bernd has showed some of the new things we've built. One of them he introduced somewhat hesitantly IMHO: Now there is... not only...
Security releases: Icinga 2.13.7 and 2.12.10
Recently the OpenSSL project released OpenSSL v1.1.1t and advised its users to upgrade due to several CVEs that release has fixed. We're not certified security experts, but we know that a redundant update is better than a missing update. While on Linux the OpenSSL...
Docker: ARMed with PIes
More and more people use machines with the energy-efficient ARM chips. No wonder, after all the Raspberry Pi's processing power evolves which makes it more suitable for a wider range of use cases. For the power users there are the new 80 core servers with Ampere...
Resolving Git merge conflicts – easily and accurately
Nobody likes resolving merge/rebase/cherry-pick conflicts. I also don't, but I've found a scheme how to reduce the built-in headache. In this post I'm going to share my findings as well as practical examples. Warming up First let's brush up on merge conflicts with...
Releasing Icinga 2.13.5
Today we are releasing Icinga 2.13.5. It addresses issues with 2.13.x-only changes such as logging startup messages to Windows event log or Icinga DB. In addition, the bundled dependencies on Windows are updated to the latest available versions. Changes Ensure...
Icinga 2 IRC notifications. The complete guide
A few months ago I wrote about sending notifications to Rocket.Chat. While that messaging tool is quite powerful, one may also prefer to keep it simple. So let's also address the good old IRC. No test system? No problem! Setting up an IRC daemon is pretty easy:...
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