Today, we are releasing security updates for Icinga 2 fixing a critical vulnerability that allowed to bypass the certificate validation for JSON-RPC and HTTP API connections. Impact The TLS...
Critical Icinga 2 Security Releases: 2.14.3, 2.13.10, 2.12.11, 2.11.12 (CVE-2024-49369)
Today, we are releasing security updates for Icinga 2 fixing a critical vulnerability that allowed to bypass the certificate validation for JSON-RPC and HTTP API connections. Impact The TLS...
Icinga Notifications: Incidents, Escalations, and Event Rules
Following the Icinga Notifications beta announcement, we already had a more general post on how to get started and one going into the details of schedules. This week's blog post is a follow up in this series and will describe incidents, escalations, and event rules in...
Making Use of Previous State in Icinga2 Check Commands
When writing a custom check plugin for Icinga 2, there are situations where in addition to observing the current state of a system, taking the past into account as well can be helpful. A common case for this is when the data source provides counter values, i.e. values...
Debugging Filters and Apply Rules using the Script Debugger
Have you ever been in a situation where something in your Icinga configuration did not work as expected and you ended up doing small changes and reloading Icinga over and over again? This can be especially tricky with apply rules and filters if they don't match the...
Icinga 2 Config Sync: DIY Edition
Two weeks ago, Icinga 2 Config Sync: Behind the Scenes explained how the config sync in Icinga 2 works and how you can look behind the scenes. Today, we will put our knowledge from that post to the test and try to manually replicate the config sync. The most important...
Icinga 2 Config Sync: Behind the Scenes
Today's blog post dives into the internals of Icinga 2 and will give you an overview how the config synchronization works internally. We will take a small cluster as an example and follow the configuration files through the synchronization mechanism. We assume some...
Releasing Icinga 2.11.7 + 2.12.2: Cluster Stability Improvements
Today we are releasing the 2.11.7 and 2.12.2 bugfix releases. In both of these, a number of issues regarding the reliability of the cluster functionality are addressed. Bugfixes Fix a connection leak with misconfigured agents #8483 (2.11.7: #8482) Properly sync...
Releasing Icinga 2.12.1 + 2.11.6
Today we are releasing the 2.12.1 and 2.11.6 bugfix releases. These versions fix several crashes, deadlocks and excessive check latencies. They also address several bugs regarding IDO, API, notifications and checks. 2.12.1 Core Fix crashes during config...
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