Last updated: October 1, 2026 · Reading time: 2–3 minutes Icinga 2 is the foundation for reliable open-source monitoring. However, what the Icinga 2 installation looks like depends on the operating system and the components you actually need. This overview brings together all the step-by-step guides for Icinga 2, Icinga DB, Icinga DB Web, and Icinga Director for Ubuntu and RHEL in one place. What is Icinga 2? Icinga 2 is a monitoring solution that checks whether hosts and services are...
Last updated: October 1, 2026 · Reading time: 4–6 minutes With an Ansible loop, you can run a task for each item in a list. Here you'll find the basics, along with practical examples, and learn how to use ` include_tasks ` to loop through multiple tasks that depend on one another. The most important points in 30 seconds An Ansible loop executes a task for each element in a list, wher {{ item }} represents the current element. The list can be included directly in the task, come from a variable,...
Last updated: September 24, 2026 · Reading time: 3–4 minutes Manually transferring ServiceNow CMDB data into Icinga Director takes time and quickly results in outdated data. The Icinga Web 2 module " icingaweb2-module-servicenow-import " from NETWAYS fills this gap: It retrieves servers and network devices directly from ServiceNow via API and automatically creates them as hosts in Director. Key Points icingaweb2-module-servicenow-import is an Icinga Web 2 module that provides ServiceNow CMDB...
Last updated: September 10, 2026 · Reading time: 8–9 minutes If Icinga reports a critical outage but no one at the service desk notices it, the alert goes unacted upon. Using the open-source repositories icinga-servicenow and icinga-servicenow-web, you can connect Icinga directly to ServiceNow: Notifications are automatically converted into incidents—no manual copying and pasting required. This guide shows you what you need and how to install and configure both components. The most important...
Last updated: September 3, 2026 · Reading time: 9–11 minutes Ansible has been using so-called " Collections" since 2019. They are the primary method for sharing Ansible content with others. But even before Ansible Collections existed, roles were already used for this purpose. In today's ecosystem, both are still present. Find out now what "Roles" and "Collections" are all about and which one you should choose today. The Most Important Points in 30 Seconds Roles are functions; collections are...
Last updated: August 27, 2026 · Reading time: 7–8 minutes A new major release, Foreman 5.0, is coming soon. Since the first release candidate now gives us a pretty clear idea of what's in store, it's time to take a look at it. The Most Important Points at a Glance The version jump from 3.19 to 5.0 does not bring a flood of changes, but rather standardizes the versioning of Foreman and Katello. Foreman 5.0 supports Ruby 3.0 through 3.3; a switch to Rails 7.1 is in the works, but depends on EL 9...
Last updated: August 13, 2026 · Reading time: 7–9 minutes What exactly can Wazuh do? In this article, Leander explains how the open-source security platform processes events, what modules it includes, and how these elements come together in typical everyday scenarios. In the first part of this blog series, he provided a general overview of what Wazuh is and what it's used for. This second part is about getting a feel for what Wazuh can do and developing a technical understanding of how it...
Last updated: August 6, 2026 · Reading time: 4–6 minutes In this article, I’d like to introduce you to the Ansible Collection netways.elasticstack, which allows you to automatically deploy and manage Ansible and the Elastic Stack (Elasticsearch, Logstash, Kibana, Beats). Using a detailed example, I'll show you step by step how to set up an Elasticsearch node. The most important points in 30 seconds netways.elasticstack fully supports Elasticsearch, Logstash, Kibana, and Beats, and...
Last updated: July 30, 2026 · Reading time: 2–3 minutes Alertmanager and Icinga do not communicate with each other by default. If you want to process Prometheus alerts centrally via Icinga, you need a bridge between the two systems. That's exactly what the Alertmanager-Icinga Bridge does: It receives alerts from Alertmanager and automatically creates them as services in Icinga. In this post, we'll explain why we're continuing to develop the Signalilo tool under a new name, what changes have...
Last updated: July 9, 2026 · Reading time: 2–3 minutes Elasticsearch is running, Kibana is set up, but how does the data actually get into the stack? The answer lies in what are known as "Beats": lightweight data collectors that run in the background and forward data to Elasticsearch. The easiest way to get started is with Filebeat and Metricbeat. This article shows you how to set up Filebeat for log files and Metricbeat for system metrics, and how to view both in Kibana. Why use Filebeat...
Last updated: July 16, 2026 · Reading time: 4–6 minutes With Ansible and Icinga, you can automate the setup of your entire monitoring environment. The " netways.icinga " collection brings together eight roles that handle exactly these recurring steps for you. We'll show you what the Collection can do, where its limitations lie, and how to set up a test environment in just a few minutes using the Full-Stack Playbook. Introduction to the Collection If you run a monitoring system like Icinga, you...
Last updated: July 9, 2026 · Reading time: 2–4 minutes Anyone involved in monitoring, log analysis, or searching through large amounts of data will sooner or later come across the ELK Stack. The ELK Stack consists of three different tools: Elasticsearch, Logstash, and Kibana. Find out what's behind it all, how the three components work together, and why the stack is completely free for self-hosting in our article here. An Overview of the Three Components ELK is not a single software program,...