Monitoring Blog
Release announcements, technical guides and monitoring insights from the ConSol team.
OMD 5.60 was released
Wednesday, May 28, 2025 in Releases
A new version of OMD was released. Changelog OMD: enable apache systemd service on first installation removed build support for sles15sp4 removed build support for sles15sp5 use upx to reduce binary size Thruk: Thruk: 3.22.2 LMD: 2.5.0 Naemon: change relative paths base to site folder fix timestamps beyond 2038 Plugins: check_hpasm: 4.10.1 check_nwc_health: 12.4 check_pdu_health: 3.0.2.2 check_printer_health: 1.2.0.2 check_rittal_health: 4.1.1 check_ups_health: 4.3.2.3 check_vsphere: 0.3.18 omdnotificationforwarder: 2.7.1.3 Gearman: Mod-gearman: 5.1.8 Mod-gearman-worker-go: 1.5.7 Grafana: Grafana: 11.5.2 pnp-datasource: 2.2.0 thruk-datasource: 2.2.0 Prometheus: Prometheus: 2.53.4 Ansible: replace shipped ansible with dependency on ansible snmptrapd: improve the samplicate_watch units …
Die Anmeldung für den Monitoring-Workshop 2025 ist geöffnet
Wednesday, April 23, 2025 in Releases
Die Registrierungsseite für den Workshop 2025 ist offen: Open-Source-Monitoring-Workshop 2025. Anmelden! Die ersten Vorträge stehen auch schon fest: Netdicso und Icinga2 im Team, Discovery und Provisionierung von Netzwerkgeräten im Monitoring - Hajo Kessener, Leibnitz Universität Hannover Cloud-Monitoring bei einem großen deutschen Elektrokonzern (VictoriaMetrics, Loki, Alloy, kube-prometheus, eks-cluster) - Ulrike Klusik, ConSol Prometheus und SNMP, MIB Discovery und Generierung von Konfigs für den snmp_exporter - Gerhard Laußer, ConSol Monitoring in der cplace-Cloud, Zusammenarbeit zwischen Cloud Operations und SW-Entwicklung zur Definition praxisnaher Metriken - Sebastian Weitzel, cplace Monitoring bei der Freiwilligen Feuerwehr München (Prometheus, Alertmanager und Grafana on Top) - …
SNClient 0.33 was released
Friday, April 11, 2025 in Releases
A new version of SNClient was released. Breaking Changes none Features check_pdh: added windows performance counter check Changed check_service: fix case insensitive excludes check_pagefile: fix crash if there is no pagefile update windows exporter to 0.30.5 update node exporter to 1.9.1 check_dns: fix crash without any nameserver change handling exporter arguments and keep quotes change handling allias/script arguments and keep quotes check_os_version: add kernel version/arch/hostname change minimum golang requirement to 1.23.8 Bugfixes fix timeout race condition when rebooting windows service fix checking for allowed arguments / nasty characters for web api requests fix checking for allowed arguments / nasty characters from external scripts (#158) Download …
Lebenszeichen vom Monitoring-Workshop 2025
Sunday, April 06, 2025 in Releases
Wir sind dieses Jahr spät dran. Bis zuletzt sah es nicht so aus, als würde sich ein Gastgeber bzw. Veranstaltungsort finden, aber dann kam der Zufall ins Spiel. Anwender und Autoren von Open-Source-Monitoring-Software und alle, die von der ehemaligen Anlaufstelle der deutschsprachigen Monitoring-Szene nagios-portal.de übrig geblieben sind, bekommen wieder Gelegenheit zum Austausch. Breaking Changes: Wir ändern nichts, es soll ja so toll bleiben wie immer. Features Vorträge über neue Entwicklungen Vorstellung bestehender Installationen Fachsimpeln Praxis und Hilfestellung Wirtshausbesuch Für die konkreten Themen und dem Termin bitte dem Download-Link folgen. Dort wird sich nach und nach eine Agenda formen. Und damit was vorangeht, ist jeder zum Mitmachen aufgefordert. Bitte anmelden, sich …
SNClient 0.32 was released
Thursday, March 13, 2025 in Releases
A new version of SNClient was released. Breaking Changes none Features add alpine support add new slike operator which is case sensitive add support for str() operator add ‘snclient config check’ command Changed change like operator to be case insensitive check_process: make process filter case insensitive check_service: make service filter case insensitive managed exporter: passthrough all urls, not just /metrics Bugfixes fix check_process when empty-state is set to OK Download https://github.com/consol-monitoring/snclient/releases/tag/v0.32
Forwarding Windows Eventlogs to Loki with Alloy
Thursday, February 27, 2025 in Insights
Forwarding Windows Eventlogs to a central log console In system monitoring, logs are a valuable source for detecting upcoming or existing issues. Especially for Windows, collecting all logs in one place has not been easy. Forwarding Windows event logs to a syslog server, which then writes the logs to files, was one approach—but this is quite outdated. Here, you will set up a modern solution based on state-of-the-art observability tools. On the client side, you will use the agent SNClient with its helper, Grafana Alloy. On the monitoring side, you will use the Open Monitoring Distribution with Loki. Step one - Install OMD and open the Loki API. To keep things short, I assume that you already have OMD installed and have created a site. In this example, use the site name demo. (And the OMD …
SNClient 0.31 was released
Wednesday, February 12, 2025 in Releases
A new version of SNClient was released. Breaking Changes none Features Changed update windows exporter to 0.30.2 chore: update dependencies change minimum golang requirement to 1.23 Bugfixes fix check_files thresholds on total_size Download https://github.com/consol-monitoring/snclient/releases/tag/v0.31
Duplicate users in the Grafana database
Monday, February 10, 2025 in Insights
This issue occurred on an OMD 5.40 system running Grafana 10.4.2. A customer reported that embedded Grafana panels in the Service Detail View of Thruk were not working. Instead of a graph, they were presented with the Grafana login page. In the ~/var/log/grafana/grafana.log, the following messages appeared: logger=user.sync t=2025-02-06T15:38:43.735173011+01:00 level=error msg="Failed to fetch user" error="Found a conflict in user login information. 3 users already exist with either the same login or email: [Sepp (email:Sepp, id:124), SEPP (email:SEPP, id:152), sepp (email:sepp, id:182)]." auth_module=authproxy auth_id=SEPP logger=authn.service t=2025-02-06T15:38:43.735241811+01:00 level=error msg="Failed to run post auth hook" client=auth.client.proxy id= error="[user.sync.internal] …
Replacing NSClient++: A Comparison of Current Alternatives
Monday, January 13, 2025 in Insights
Many of you have probably wondered how to best replace NSClient++ with a modern tool. René Gau from ASFINAG has written a bachelor’s thesis on this very topic, providing a detailed analysis of the pros and cons of the most relevant alternatives. Here’s a little spoiler: if you want to avoid vendor lock-in and exorbitant migration or licensing costs, this website has all the information you need!"
missing perl module Digest::SHA1 under Rocky 9
Friday, January 10, 2025 in Insights
Some of you might have followed the instructions at https://labs.consol.de/repo/testing/#_9 to install the labs.consol.de repository. If you’re using a minimal setup of Rocky Linux 9, you might encounter this error message: # dnf install omd-5.51.20250109-labs-edition.x86_64 Last metadata expiration check: 0:08:01 ago on Fri 10 Jan 2025 10:32:09 AM CET. Error: Problem: package omd-5.51.20250109-labs-edition-el9-1.x86_64 from labs_consol_testing requires perl-Net-SNMP, but none of the providers can be installed - conflicting requests - nothing provides perl(Digest::SHA1) >= 1.02 needed by perl-Net-SNMP-6.0.1-25.el8.1.noarch from epel (try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages) The missing Perl module Digest::SHA1 is …