https://www.christian-knedel.de/en/tags/linux/ Recent content in linux on Christian Knedel Hugo -- gohugo.io en-us Sun, 04 Apr 2021 00:00:00 +0000 https://www.christian-knedel.de/en/post/2021/april/20210404-xdotools-xclip/ Sun, 04 Apr 2021 00:00:00 +0000 https://www.christian-knedel.de/en/post/2021/april/20210404-xdotools-xclip/ In this tutorial I show how to control a Linux - desktop via Bash. The following packages are needed for the bash robot: x – + Terminal $ apt-get install xdotool xclip After that you can use all xdotool commands, for example: #!/bin/bash #mouse bewegen xdotool mousemove 100 200 #Mouse - Koordinaten erfassen xdotool getmouselocation #Mouse-klick xdotool click 1 Mouse-Klick auf Koordinaten xdotool mousemove 100 200 click 1 #usw. https://www.christian-knedel.de/en/post/2021/april/20210404-docker-jenkins/ Sun, 04 Apr 2021 00:00:00 +0000 https://www.christian-knedel.de/en/post/2021/april/20210404-docker-jenkins/ This tutorial builds on the previous knowledge of “Great things with containers: running Jenkins on the Synology DS”. If you already have LDAP at the start, you only have to create a suitable application group: After that you need to enter the settings in Jenkins. I click on “Manage Jenkins” > “Configure Global Security”. Important: For self-signed certificates, the truststore must be provided by the Java-Opts from the Jenkins server. https://www.christian-knedel.de/en/post/2021/march/20210321-atlassian-ldap/ Wed, 24 Mar 2021 00:00:00 +0000 https://www.christian-knedel.de/en/post/2021/march/20210321-atlassian-ldap/ You can consider yourself lucky if you have your own Atlassian installation. Today I show how I connected Jira, Bamboo and Confluence to my LDAP server. Step 1: Install OpenLDAP I have OpenLDAP set up on my Synology NAS using this Docker compose file. ersion: '2' services: openldap: restart: always image: osixia/openldap container_name: openldap environment: LDAP_TLS: 'true' LDAP_TLS_CRT_FILENAME: '....pem' LDAP_TLS_KEY_FILENAME: '......pem' LDAP_TLS_CA_CRT_FILENAME: '......pem' LDAP_ORGANISATION: "365Layouts" LDAP_DOMAIN: "homelab.local" LDAP_BASE_DN: "dc=homelab,dc=local" LDAP_ADMIN_PASSWORD: ". https://www.christian-knedel.de/en/post/2021/march/20210307-esxi-nuc/ Sun, 07 Mar 2021 00:00:00 +0000 https://www.christian-knedel.de/en/post/2021/march/20210307-esxi-nuc/ With ESXi the “intel NUC” can be divided into any number of computers. In this tutorial I show how I installed VMware ESXi on my NUC.Small preface: I recommend a BIOS update before the ESXi installation. Also, a 32GB USB flash drive is required. I bought a whole bundle for less than 5 euros each from Amazon. My NUC-8I7BEH has 2x 16GB HyperX Impact Ram, 1x 256GB Samsung 970 EVO M2 module and a 1TB 2. https://www.christian-knedel.de/en/post/2020/february/20200227-calibre-heise-ix-script/ Thu, 27 Feb 2020 00:00:00 +0000 https://www.christian-knedel.de/en/post/2020/february/20200227-calibre-heise-ix-script/ It can often be tedious to tag PDFs with the right meta info. I myself sort the downloaded PDFs from my Heise-IX subscription account, into my private Calibre library. Because this process repeats itself every month, I came up with the following setup. I just drag and drop my new PDFs into my library. I have created a container for myself that gets my Calibre library as a volume (-v …:/books). https://www.christian-knedel.de/en/post/2020/february/20200227-docker-youtube-dl/ Thu, 27 Feb 2020 00:00:00 +0000 https://www.christian-knedel.de/en/post/2020/february/20200227-docker-youtube-dl/ Many of my friends know that I run a private learning video portal on my Homelab - Network. I have saved video courses from past learning portal memberships and good Youtube tutorials for offline use on my NAS. Over time, I have collected 8845 video courses with 282616 individual videos. The total running time is equivalent to about 2 years. Absolutely crazy!In this tutorial I show how to backup good Youtube tutorials with a Docker download service for offline purposes. https://www.christian-knedel.de/en/post/2020/february/20200221-docker-calibre-pro/ Fri, 21 Feb 2020 00:00:00 +0000 https://www.christian-knedel.de/en/post/2020/february/20200221-docker-calibre-pro/ There is already a simpler tutorial on this blog: Synology-Nas: Install Calibre Web as ebook library. This tutorial is for all Synology DS professionals. Step 1: Prepare Synology The first thing to do is to enable SSH login on Diskstation. To do this, go to the “Control Panel” > “Terminal After that you can log in via “SSH”, the specified port and the administrator password (Windows users take Putty or WinSCP). https://www.christian-knedel.de/en/post/2020/february/20200214-imagemagick-pdf-overview/ Fri, 14 Feb 2020 00:00:00 +0000 https://www.christian-knedel.de/en/post/2020/february/20200214-imagemagick-pdf-overview/ If you want to create a page overview image from a PDF file, then you’ve come to the right place! Step 1: Create working folder Use this command to create a temporary working folder: x – + Terminal $ mkdir /tmp/bilder Step 2: Separate page The following command creates an image of each PDF page: x – + Terminal $ convert 716023b632a9cbe6cad3ab368c202288. https://www.christian-knedel.de/en/post/2020/february/20200214-rpi-cpu-temp/ Fri, 14 Feb 2020 00:00:00 +0000 https://www.christian-knedel.de/en/post/2020/february/20200214-rpi-cpu-temp/ If you want to shut down a Raspberry above a certain temperature, then you are in the right place. I have a script that checks the CPU temperature via crontab: #!/bin/sh # This script reads the Broadcom SoC temperature value and shuts down if it # exceeds a particular value. # 80ºC is the maximum allowed for a Raspberry Pi. # Get the reading from the sensor and strip the non-number parts SENSOR="`/opt/vc/bin/vcgencmd measure_temp | cut -d "=" -f2 | cut -d "'" -f1`" # -gt only deals with whole numbers, so round it. https://www.christian-knedel.de/en/post/2019/july/20190717-libreelec/ Wed, 17 Jul 2019 00:00:00 +0000 https://www.christian-knedel.de/en/post/2019/july/20190717-libreelec/ SmartTVs can be ticking time bombs. Often, the TV operating systems contain serious gaps or are not kept up to date. A good solution can be a standalone MediaPC operating system. LibreElec runs on the weakest Raspberry and can be controlled with the TV’s remote. LibreElec is more customizable than a SmartTv operating system and offers a variety of apps/modules. All you need is a RaspberryZeroW and a blank SD card. https://www.christian-knedel.de/en/post/2021/april/20210402-bamboo-monitor/ Mon, 01 Jan 0001 00:00:00 +0000 https://www.christian-knedel.de/en/post/2021/april/20210402-bamboo-monitor/ How to create a build monitor for Bamboo, Jenkins or Gitlab? I’ll figure it out by tonight! I have already written a similar Tutorial for Gitlab Issue Boards. The basis for this tutorial is the Raspberry imager and the “Raspberry Pi OS Lite” operating system. After the OS installation, the SD card can be inserted into the Raspberry. In my case this is a Raspberry Pi Zero. Step 1: Install Matchbox/Window Manager To run a Raspberry in kiosk mode, a window manager and a browser are needed.