During our consulting activities we frequently find ourselves having to collect data from SNMP devices that do not support SNMPv3 for data encryption. This type of traffic is readable on the network and can create security problems and noncompliance with company certifications, for example ISO27K. For this reason, you might have devices segregated on a…
Read MoreRunning Ollama locally or on dedicated hardware is straightforward until you need to know whether a model is actually loaded in RAM, how fast it generates tokens under load, or when memory consumption reaches a threshold that affects other workloads. A simple TCP port check confirms the process is alive, nothing more. This tutorial shows…
Read MoreNot long ago, I received an interesting request from one of our client’s Unix teams: They wanted a URL where the latest version of the Icinga 2 agent is always available. An important requirement was that this version should stay in sync with the current NetEye server version, enabling fully automated installation and updates. I…
Read MoreSNMP monitoring is the standard method for obtaining information and metrics from network devices. Typically, we focus on extracting data from a single interface to monitor its status, traffic, or errors. But in many cases, we’re only interested in getting an overview of the interfaces, or, to avoid overloading our somewhat outdated devices, we limit…
Read MoreA safer way to run privileged Windows checks with SystemRunner If you’ve been monitoring Windows for a while, you’ve probably seen this pattern: some checks must run as LocalSystem (S-1-5-18), and the “quick fix” is to run the Icinga Agent itself as SYSTEM. It works. It’s also a really bad idea. Why? SystemRunner takes a…
Read MoreThis document describes the steps required to build, configure, and operate a Podman container based on php:8.2-cli, with the SNMP extension enabled, intended for executing monitoring plugins within a NetEye/Icinga environment. Create a Containerfile with the following contents: FROM docker.io/php:8.2-cliRUN apt-get update && \ apt-get install -y libsnmp-dev snmp && \ rm -rf /var/lib/apt/lists/* &&…
Read MoreHi 😀 Today I’d like to explore with you a migration that we performed to a service that’s used internally to monitor the performance of various DBs, gathering data that’s especially useful for troubleshooting. This tool is the Percona Monitoring and Management (PMM) platform, which combines agents or direct access to various supported DBMS (MySQL,…
Read MoreIn some test or development environments, you may need to simulate the presence of GSM modems without having an actual physical device. This can be useful for example when testing monitoring checks, SMS management systems, or creating new notification rules. In this post I’ll show you how I created a serial modem emulation service. The…
Read MoreScenario NetEye 4 provides a graphical engine to represent time series monitoring data stored in an Influx database: the Grafana engine accessible through the ITOA menu on the left hand side. Grafana is very powerful: it consists of a dashboard built up of multiple individual panels. A lot of them are native to Grafana, but…
Read MoreToday I’d like to share a peculiar request I received during one of my recent Consulting Sessions. It’s just a highly specific Business Case, but it led me to wonder: what if I could find a way to generalize it? For now, that’s just a fantasy, but let me tell you the whole story so…
Read MoreDo you have a SIEM installation based on Elasticsearch (like the NetEye 4 SIEM Module) and are you sending data to it from your hosts? Then you’ll surely want to know whether your host is actually sending data, or if nothing is coming out at all. For this I made available a simple icinga/nagios plugin…
Read MoreThe event of the year, the NetEye User Group, is back! The User group is not only a chance to inform our customers about new products and releases, but also an occasion to meet and exchange feedback and ideas. This year the NetEye Usergroup took place in Rocca Sveva, a centuries old villa located in…
Read More…also this year, Würth Phoenix & Gravitate organized the annual Usergroup DACH 2023 in Nuremberg. The Usergroup is not only a chance to inform our customers about new products and releases, but also an occasion to meet and exchange feedback and ideas. This year’s NetEye Usergroup took place in Nuremberg in the Romantik Hotel Rottner,…
Read MoreIf you have a NetEye with SIEM Module activated or own an Elasticsearch installation then you have surely activated the Elasticsearch Snapshots to make backups of all your indexes (or at least the important ones). However you have to take a regular look at your Snapshots Reports to check that everything is working correctly. I…
Read MoreScenario Veritas Backup Exec is widely used for the backup of physical machines through local installed agents both on Windows and Linux hosts. It also supports application backup for Microsoft Exchange, SharePoint and several different Database engines, with the option of a granular application data restore. The product additionally supports virtual backup through Hyper-V and…
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