What is SNMP Trap: Real-Time Alerts for Network Monitoring

What is SNMP Trap: Real-Time Alerts for Network Monitoring

Why wait for the next poll? An SNMP trap is a real-time alert sent from a device to a monitoring system, without waiting for polling. Ever had a router die silently at 3 AM while your monitoring system was still polling away every 5 minutes? Yeah… not fun. That’s...

Upgrade your monitoring lists with icon images

Upgrade your monitoring lists with icon images

Recently I was importing an Icinga configuration for testing purposes. Working with this configuration, I found that there were icon images assigned to the objects. Sadly, those didn’t display, because I didn’t have the icon set installed. So I thought of creating my...

Icinga 2 Insights With Event Streams

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...

Turns any command into a plugin: check_rungrep

Turns any command into a plugin: check_rungrep

Imagine you have one more special thing to monitor. While our Icinga 2 can observe infrastructure of almost any size, it still needs a plugin for each kind of check. Unfortunately not every command meets the monitoring plugin API: exit code 0-3 (ok, warning, critical,...

How to do Agentless Monitoring with check_by_ssh

How to do Agentless Monitoring with check_by_ssh

The fundamentals of Icinga 2 are check plugins. They are being executed and their return value is mapped to either Host or Service objects. Everything else follows on top. These check plugins can be either from the Monitoring Plugins or custom. While their origin does...

Common cloud monitoring challenges we can overcome!

Common cloud monitoring challenges we can overcome!

In today's fast-paced digital landscape, businesses are moving their operations to the cloud more than ever before. This shift brings incredible benefits like scalability, flexibility, and cost-efficiency. While it does introduce various common cloud monitoring...

Monitoring domains and DNSSEC properly

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, no matter whether your LAMP components are all up and running. At...

Icinga Notifications: Incident muting

Icinga Notifications: Incident muting

In a previous article, Julian provided a comprehensive overview of the characteristics and functionality of Incidents in Icinga Notifications. In today's blog, I will explain the concept of Incident muting and its underlying mechanisms. What is Incident Muting? The...

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