PART-2 – ECK setup

PART-2 - ECK setup ECK is only available with basic and enterprise/trial license! Deploy ECK Just run following command to install the custom resource definitions - or download the yaml and apply it kubectl apply -f Setting Up The Elasticsearch-Cluster Create a folder where you save your yaml-files. In this example we will assume... » weiterlesen

PART-1 – Setting Up A Home-Lab Elastic ECK

There are wrong spaces later in some of the config-snippets - I have to adjust the pages. Be aware if you just copy and paste stuff from here - some markdown-conversion is not handled well 😐 Setting Up A Home-Lab Elastic ECK I used again Fedora Server (33) to setup a two node Kubernetes cluster... » weiterlesen

My VM New Homelab

This HowTo is mainly meant as documentation if I have to resetup my lab 🙂 Hardware Ryzen 7 4750G 64GB RAM Network Interface card with 4 ports 1TB NVME M2 disk Prerequisites Internet Connection (in this case via my pfSense VM running on old lab) Backup of pfSense config Setup After doing a minimal Fedora... » weiterlesen

Grafana – Using A JSON Source For Tagging And Grouping

We are using Graphite for one part of our monitoring in the company where I'm currently working at and unfortunately our sources are not able to tag the different metrics. So we have to somehow declare groups with hosts and other parameters, to be able to nicely differ/choose between the different hosts/groups in a dashboard.... » weiterlesen

Create Windows 10 Storage Space Volume

A few days before this article I decided to buy a new PC respectively assemble a new one and I planned to create a Windows 10 Storage Spaces Volume for my "important" data. As data-HDDs I use now four Seagate BarraCuda Compute 2TB (ST2000DM008) in a mirrored 2-column volume with decent benchmarks (reaching up to... » weiterlesen

Check MK – Check Parameters Form Fields

This is for CheckMK v1 No guarantee that I understood everything correctly. This site is not finished at all ;o) In general you set some default values in your check that should be used if no configuration via WATO was created for a service. For example there could be something like the following line nearly... » weiterlesen

Check MK – Extension Packages – wider “Packaged Files” select boxes

Deprecated: for CheckMK v1 If you wonder how to get wider select-boxes in WATO on the "Extension Packages - Create new package"-site, you have to edit the file /omd/sites/"your-site"/share/check_mk/web/plugins/wato/ - find the following section (around line 437): return Transform( DualListChoice( title = _("Packaged files"), choices = self._files_choices(), # size = 80, size = 135, rows... » weiterlesen

Check MK – Write your own active check

Deprecated: for CheckMK v1 Download mkp-File: Active Check Script should return the few different states - 0, 1, 2, 3 for OK, WARN, CRIT, UNKOWN must be placed in ~/local/lib/nagios/plugins The Check_MK Plugin like always must be placed in ~/local/share/check_mk/checks and the WATO configuration in ~/local/share/check_mk/web/plugins/wato Example Script - A Check for RTMP-Streams This... » weiterlesen

Check MK – Write your own check

This HowTo works up to CheckMK v1.6 --- A HowTo for creating a simple agent-plugin for v2.0 is available. Download mkp-File: redis-info-mkp Many thanks to Robert Sander, he was so kind to create a github-repo at - it will be updated by him the sooner or later. 2016-12-06 - Updated this How To: If... » weiterlesen

Such-Script für Squidanalyzer

Ich verwende für Auswertungen von Squid-Access-Logs gerne Squidanalyzer ( Um leichter z.B. unanständige URLs zu finden, um diese anschließend sperren zukönnen, habe ich mir ein Perl-Script geschrieben. Es funktioniert recht gut, aber hat noch Probleme mit bestimmten Sonderfällen (aber die sind nicht so kritisch; z.B. Tippfehler bei URLs :o) ). Das Script schlüsselt dann sehr... » weiterlesen