Sometimes you’d just really like to have an overview of what happens to the Events that flow through Tornado. Where do they come from? Did they get stuck somewhere in the Collectors or in Tornado? Which Tornado Actions did they trigger? Gathering all this information from hundreds of log lines across different services (i.e., Tornado…
Read MoreWhen I’m running a service which processes a lot of data, sooner or later I start to wonder: what is the service doing? What data is it processing? This also applies to our event processor Tornado. For the Tornado Engine, the administrator may wonder for example how many events Tornado is receiving, how many actions…
Read MoreTogether with the NetEye 4.21 release, we also released NEP (an abbreviation that stands for NetEye Extension Packs) and now it’s possible to install it using the RPM present in the Official NetEye Repositories. If you are interested in this topic, I invite you to look at how these NEPs have been set up. The…
Read MoreWe were recently asked how to dynamically monitor folders with Icinga. Several of our clients monitor folders whose names change from day to day. For example, suppose every day I want to see if there is a file named with the date of that particular day, or I’d like to see if there is a…
Read MoreDuring migrations from NetEye 3 to NetEye 4, I often run into really outdated monitoring checks in the Windows world, where the last update was more than 10 years ago… and whose logic is therefore now completely obsolete! The time for change is now!!! In the last year Icinga released a really interesting project that…
Read MoreNow, if you’ve followed my previous blogs about the x509 Module, you should have in place your x509 Certificates Asset with (or without) a minimum of cleanup routines. Now it’s time to look at what Icinga was made for: monitoring. Making an asset out of all of your SSL Certificates is only half the job….
Read MoreSome of my customers make use of short-expiration SSL Certificates signed by Let’s Encrypt or similar services. Our company also makes extensive use of this kind of certificate, and in the near future most (if not all) of your SSL Certificates will in any event become like them as their expiration date approaches. Maybe some…
Read MoreHi everyone, in this article I want to tell you about the NagVis module and how we’re going to customize a template so that it can allow us to modify the information displayed during mouse-over (hover). Basically, what we’ll try to achieve will be to preview the performance graphs written on Influx via an additional…
Read MoreIn the last 10-or-so years, the complexity of enterprise IT applications has greatly increased: each of them can span vertically with multiple (and complex) layers, and each layer can serve applications other than the one that it’s part of. And, obviously, each layer spans across several servers to increase performance and availability. This inevitably leads…
Read MoreKentix MultiSensor is a device which includes many sensors for use in monitoring server and IT rooms. The sensor only needs to be connected to your network (PoE is required) and to have SNMP configured through its web interface. The LAN version we used in this test monitors: Temperature Humidity Dewpoint Fire (carbon monoxide) Motion…
Read MoreIn this article I’ll talk about Icinga DSL and how it can be extremely useful if you want to compute thresholds. Our goal today is to be able to change certain monitoring thresholds when some parameters change. Example The example I propose is the following: I’m a system administrator, and I would like the warning…
Read MoreIn the last few weeks, we collaborated with the Icinga2 developers to create a new powerful API, called “Execute Command“. The main purpose of this new API is to execute specific commands on a node by sending the request to the parent node. This is useful when the user cannot reach the desired node (an…
Read MoreThis article explains how to set up a NetEye4 satellite using a Raspberry Pi. This is not an official guide and this solution is not officially supported. As test-bed I used a Raspberry Pi 4B with 4GB of ram, 32GB microSD card and NetEye 4.12 single-node installation as master. Master Configuration Add a new zone…
Read MoreLast week I had to implement monitoring checks for a customer’s host running an IBM iSeries server. As the monitoring for that is a bit particular, I’d like to share what I did, and also share with you an Icinga2 Basket containing the monitoring structure. Where to Find the Necessary Files You may download the…
Read MoreThe Remote Desktop Services Microsoft’s Remote Desktop Services are widely used by companies to let users use applications inside a server farm. Typically the reasons to use Remote Desktop are: Standardized environment and configuration Easy maintenance during application version upgrades Lower resource usage on the clients Better bandwidth usage in case of a slow connection…
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