http://fixes.brecht-schule.hamburg/ 2026-04-19T10:43:54+00:00 http://fixes.brecht-schule.hamburg/ http://fixes.brecht-schule.hamburg/_media/wiki/logo.png text/html 2026-01-31T12:48:50+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/resize-lvm?rev=1769863730&do=diff Resize LVM volume Not documented yet, but have a look here: computingforgeeks.com/extending-root-filesystem-using-lvm-linux text/html 2026-01-05T13:06:38+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/kde/restart-plasmashell?rev=1767618398&do=diff [KDE/Plasma 5] Restart Plasmashell when frozen Just use the following commands: sudo killall plasmashell And then restart: kstart5 plasmashell text/html 2025-09-24T08:09:11+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/disable_ksshaskpass?rev=1758701351&do=diff text/html 2025-09-24T08:09:10+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/disable-ksshaskpass?rev=1758701350&do=diff Disable ksshaskpass on KDE neon To disable the pop-up window when opening a SSH-connection on KDEneon first uninstall the ksshaskpass package: sudo apt purge ksshaskpass Then comment out all lines in /etc/xdg/plasma-workspace/env/neon_ksshaskpass.sh text/html 2025-09-08T14:43:04+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/send-crontab-output-via-email?rev=1757342584&do=diff text/html 2025-09-08T14:43:04+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/send-command-output-via-email?rev=1757342584&do=diff Send output of command via email with sendmail This guide shows how to configure a script to send it's output via email. Thereby that the MAILTO= setting in crontabs is global, it's not that easy to send an email to a different address from another crontab files. This function/script can be used to send the output of a crontab to a different address: text/html 2025-08-09T19:15:41+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/fix-resolution-via-grub?rev=1754766941&do=diff Change resolution via grub (resolution to small for installation window) When installing linux e.g. Ubuntu on a new laptop, the installer might not select/contain the correct driver for the display. This might result in a screen resolution of 600×400 text/html 2025-06-08T17:26:20+00:00 BIT (bit@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/waterfox-install?rev=1749403580&do=diff Waterfox on Linux (Install/Settings) Installation from flatpak → flathub.org/en/apps/net.waterfox.waterfox flatpak install flathub net.waterfox.waterfox Waterfox Installation from Repository (Debian, Fedora, CentOS) Although there are no official Debian repositories for Waterfox, it can be installed from a repsoitory with APT. text/html 2025-04-13T10:02:23+00:00 Samsoneko (samsoneko@undisclosed.example.com) http://fixes.brecht-schule.hamburg/raspberry-pi/ipfire-on-rpicm4?rev=1744538543&do=diff Install IPFire on a Raspberry Pi CM4 on DFRobot Carrier Board over Serial Console This tutorial covers how to install a IPFire Firewall on to a Raspberry Pi Compute Module 4 that is carried on DFRobot's Router Carrier Board Mini using a serial console. Disclaimer: all provided links in this article aren't sponsored! text/html 2025-04-13T09:08:01+00:00 Samsoneko (samsoneko@undisclosed.example.com) http://fixes.brecht-schule.hamburg/folding-at-home?rev=1744535281&do=diff Folding at Home Brecht Schule is actively supporting the Folding-at-Home project with some machines. Read more about Folding at Home here: foldingathome.org Brecht Schule's current statistics can be found here: stats.foldingathome.org text/html 2025-03-26T18:27:55+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/host-dhcp-server?rev=1743013675&do=diff Host DHCP Server This guide shows how to host a DHCP-Server on Debian, e.g. for a separate IP-Camera-Network: * Set a static IP address on the interface where the DHCP should be running on later, therefore have a look here Set Static IP Address / Static route. (You may have to adjust the tutorial to your distribution). text/html 2025-03-23T11:00:42+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/extract-img?rev=1742727642&do=diff Extract .img-Files with 7zip To view and extract content from an .img-file the tool 7zip is required. (This guide should also work but slightly different with the 7zip-GUI on Windows). View content To view the content of such a file via CLI on Linux use: text/html 2025-03-23T11:00:07+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=linux%3Alinux-tutorials%3A7zip-extract-file-from-img.png&ns=linux%3Alinux-tutorials&rev=1742727607&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/linux/linux-tutorials/7zip-extract-file-from-img.png?w=500&amp;h=500&amp;tok=2e09eb" alt="7zip-extract-file-from-img.png" loading="lazy" width="500" height="500" /> text/html 2025-03-23T10:59:53+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=linux%3Alinux-tutorials%3A7zip-list-content-of-img.png&ns=linux%3Alinux-tutorials&rev=1742727593&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/linux/linux-tutorials/7zip-list-content-of-img.png?w=500&amp;h=500&amp;tok=4f23ed" alt="7zip-list-content-of-img.png" loading="lazy" width="500" height="500" /> text/html 2025-03-05T11:24:58+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/apt?rev=1741173898&do=diff APT Disable new notifications from listchanges To disable the sending of listchanges information from APT run the following command: dpkg-reconfigure apt-listchanges Then select None as Method to be used to display changes. Confirm all other requests with the default selected value. text/html 2025-03-01T20:03:49+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/tools?rev=1740859429&do=diff Tool collection This page contains many helpful tools or services for system administrators and all others. Windows Tools Tool Link text/html 2025-02-22T14:41:19+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/debian/proxmox/lxc-postfix-domain?rev=1740235279&do=diff LXC correct domain for Postfix When using postfix within a Proxmox Container (LXC), Postfix might source a wrong domain and just appends .localdomain to the sender/receiver address. To change that edit /etc/postfix/main.cf and change the line mydomain = text/html 2025-02-22T12:20:52+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/monitoring/observium/auto-update?rev=1740226852&do=diff Auto update Observium with crontab Therefore that Observium doesn't use APT for updating, it can't be upgraded with unattended-upgrades for example. Nevertheless Observium can automatically be upgraded with a crontab: This way of updating was only tested for the enterprise version of Observium! text/html 2025-02-20T13:49:01+00:00 Samsoneko (samsoneko@undisclosed.example.com) http://fixes.brecht-schule.hamburg/schnipsel/test?rev=1740059341&do=diff text/html 2025-02-11T07:17:54+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/debian/setup-repository-nexus?rev=1739258274&do=diff Setup APT Repository (Sonatype Nexus3) An alternative solution to host a repository for APT which is more easy to maintain is using Sonatype's Nexus3 Repository Manager. Firstly install Sonatype's Nexus3: Installation * Download Debian 12 Server from here: text/html 2025-02-11T07:10:22+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/windows/chocolatey/setup-self-hosted-choco-repo?rev=1739257822&do=diff Setup self hosted Chocolatey Repository/Proxy on Linux To host a local repository for Chocolatey either as server for self-hosted packages or as proxy server for any NuGet server/the official chocolatey repository server we use Solartype Nexus3: sonatype.com - Nexus3. Nexus3 is also useable for hosting a simple, easy-to-manage repository for the APT-package manager. text/html 2025-02-08T13:53:21+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/debian/proxmox/resize-lvs?rev=1739022801&do=diff Resize/Grow LVM-volume Firstly show all available LVMs: lvdisplay The output might look like this: --- Logical volume --- LV Path /dev/pve/swap LV Name swap VG Name pve LV UUID U1Mc2n-WRuL-P8Li-yIb6-AXN8-ueDd-oYfwOu LV Write Access read/write LV Creation host, time proxmox, 2023-08-19 09:49:14 +0200 LV Status available # open 2 LV Size 8.00 GiB Current LE … text/html 2025-02-07T11:27:50+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/monitoring/observium/check-hardware-raid-state?rev=1738927670&do=diff text/html 2025-02-07T11:27:49+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/monitoring/observium/check-raidcontroller-state?rev=1738927669&do=diff Check Raid-Controller state with Observium (LSI/Adaptec) Both methods have been tested on Debian. To monitor a RAID-Controller (not the RAID-State) with Observium the Observium-Agent can be used: * Firstly install Observium's Agent by using this script: text/html 2025-02-01T13:12:38+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=monitoring%3Aobservium%3Aobservium_alert-check_raid-controller.png&ns=monitoring%3Aobservium&rev=1738415558&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/monitoring/observium/observium_alert-check_raid-controller.png?w=500&amp;h=500&amp;tok=adb9ad" alt="observium_alert-check_raid-controller.png" loading="lazy" width="500" height="500" /> text/html 2025-02-01T12:09:59+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/monitoring/observium?rev=1738411799&do=diff text/html 2025-02-01T12:09:58+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/monitoring/observium/start?rev=1738411798&do=diff Observium URL to Observium: observium.org This namespace has the following content: observium index text/html 2025-01-21T17:25:43+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/swap?rev=1737480343&do=diff SWAP / Swappiness Swappiness defines how fast processes, more accurate their consumed RAM, is sourced out to a disk. This is only required and recommended when there's not enough RAM available. Since hard drives are thousands of times slower than RAM, it is recommended for servers to keep the swap value as low as possible due to a higher performance. In general the physical storage location should be at least a SSD, better a NVMe. text/html 2025-01-05T18:25:57+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/raspberry-pi/rotate-official-touchscreen?rev=1736101557&do=diff text/html 2025-01-05T18:25:56+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/raspberry-pi/official-touchscreen?rev=1736101556&do=diff Official Raspberry Pi Touchscreen Rotating the Official 7" Touchscreen Create the following DESKTOP-file [Desktop Entry] Type=Application Name=Rotate DSI 180° Exec=/usr/bin/wlr-randr --output DSI-1 --transform 180 Hidden=false NoDisplay=false X-GNOME-Autostart-enabled=true text/html 2024-12-31T15:01:58+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/raspberry-pi/hw-information?rev=1735657318&do=diff Raspberry Pi Commands Get Hardware Model Information sudo cat /sys/firmware/devicetree/base/model text/html 2024-12-27T13:57:53+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/debian/static-ip-address-route?rev=1735307873&do=diff Set Static IP Address / Static route ifupdown2 First install the ifupdown2 package: sudo apt install ifupdown2 It will generate the file /etc/network/interfaces if it doesn't exist. Then edit /etc/network/interfaces and add the following: auto eth0 iface eth0 inet static address 172.16.1.20/24 gateway 172.16.1.1 nameserver 172.16.1.1 text/html 2024-12-27T13:56:31+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/debian/static-ip-address?rev=1735307791&do=diff text/html 2024-12-25T13:29:42+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/quickfixes?rev=1735133382&do=diff Quickfixes Relaunch KDE Plasma after freeze Sometimes after some weeks of uptime when I entered my office in the morning, I discovered a freezed Plasma. To fix this, enter the system via SSH and then execute this command: sudo systemctl restart sddm text/html 2024-12-25T13:13:28+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/start?rev=1735132408&do=diff Linux Tutorials This namespace has the following content: linux-tutorials index text/html 2024-12-25T13:12:56+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/linux-like-windows10?rev=1735132376&do=diff text/html 2024-12-25T13:12:56+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/kde/linux-like-windows10?rev=1735132376&do=diff Linux with Windows 10 UI Sounds weird? But is possible! To make Linux look like Windows 10 some steps are required, this tutorial shows how to do this. Firstly you need a KDE/Plasma desktop environment, therefore you can either use the official Ubuntu-derivate Kubuntu or any Linux distribution with the text/html 2024-12-25T13:12:34+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/change-dns-server?rev=1735132354&do=diff text/html 2024-12-25T13:12:33+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/debian/change-dns-server?rev=1735132353&do=diff Edit DNS server Tested on Debian 12 There are several ways to set a DNS server in Debian. One way is using /etc/resolv.conf. Therefore just add the following line with the DNS server you want to add to the file: nameserver <ip-of-dns-server> Sourced from text/html 2024-12-25T13:12:12+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/sticky-notes?rev=1735132332&do=diff text/html 2024-12-25T13:11:02+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/quicktutorials?rev=1735132262&do=diff Quicktutorials Get OS information Get OS information from /etc/os-release. Example: Debian: PRETTY_NAME="Debian GNU/Linux 11 (bullseye)" NAME="Debian GNU/Linux" VERSION_ID="11" VERSION="11 (bullseye)" VERSION_CODENAME=bullseye ID=debian HOME_URL="https://www.debian.org/" SUPPORT_URL="https://www.debian.org/support" BUG_REPORT_URL="https://bugs.debian.org/" text/html 2024-12-25T13:08:35+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/debian/start?rev=1735132115&do=diff Debian / Systemd This namespace has the following content: debian index text/html 2024-12-25T13:08:14+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/systemd-command-periodically?rev=1735132094&do=diff text/html 2024-12-25T13:08:13+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/debian/systemd-command-periodically?rev=1735132093&do=diff Run command with systemd periodically If you wish to run a command periodically with systemd create a service with the following content: [Unit] Description=Autorun command After=network.target network-online.target [Service] RestartSec=30 Restart=always User=<user> ExecStart=/command/to/be/run [Install] WantedBy=multi-user.target text/html 2024-12-25T13:04:07+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/discord-installation-snap?rev=1735131847&do=diff Discord Installation via SNAP Install Discord on Ubuntu via snap Just use the following command: sudo snap install discord Fix Discord (snap) spamming syslog If Discord is spamming your syslog on Ubuntu or Debian and you installed it via snap, try this: text/html 2024-12-05T14:20:21+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/add-logging-unbound?rev=1733408421&do=diff Add full DNS logging for unbound Currently under construction/development... But here's what you might be looking for: community.ipfire.org - Unbound logging text/html 2024-10-09T11:30:20+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/windows/windows-tutorials/reset-disk-via-cli?rev=1728473420&do=diff Reset/Uninitialize a disk via CLI (DISKPART) To remove all partitions and uninitialize a disk on Windows a tool called DISKPART can be used. It is installed by default on all Windows versions, to perform an uninitialization administrator permissions are required. The functionality described here is only a minimum of all the things DISKPART can do. text/html 2024-10-09T11:25:39+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/windows/windows-tutorials/start?rev=1728473139&do=diff Quick Windows Tutorials This namespace has the following content: windows-tutorials index text/html 2024-10-09T11:25:31+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/windows/windows-tutorials/allow-remote-signed-ps-scripts?rev=1728473131&do=diff Run remote-signed PowerShell Scripts Windows blocks the execution of remote signed PowerShell scripts by default. If your execution policy still has this setting, you might see this error message: C:\Users\test-user\Downloads\Install.ps1 is not digitally signed. You cannot run this script on the current system. For more information about running scripts and setting execution policy, see about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170. At line:1 char:1 + .\Install.ps1… text/html 2024-10-09T11:24:08+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/windows/windowstutorials/allow-remote-signed-ps-scripts?rev=1728473048&do=diff text/html 2024-10-09T11:23:57+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/windows/windowstutorials/start?rev=1728473037&do=diff text/html 2024-10-09T11:23:25+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/windows/allow-remote-signed-ps-scripts?rev=1728473005&do=diff text/html 2024-08-19T10:49:17+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/tutorials/brother-pt700-pt750w-linux?rev=1724064557&do=diff Use Brother P-Touch 700/750W on Linux Due to the great work of someone, who has written a tool to use a Brother P-Touch from Linux via CLI and without CUPS, it is possible to use those label-printers on Linux. The sourcecode can be found here. Installation text/html 2024-07-13T11:29:14+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/sidebar?rev=1720870154&do=diff Navigation Fixes | Public BIT Wiki index text/html 2024-07-13T11:27:51+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/complete-wiki?rev=1720870071&do=diff All pages An overview over all pages of this wiki: Fixes | Public BIT Wiki index Internal Area text/html 2024-07-05T08:55:46+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/tutorials/rustdesk-server?rev=1720169746&do=diff RustDesk Server (Self-host) Change ports of RustDesk server The default ports are: HBBR: 21117(TCP), 21119(TCP) HBBS: (21114) API, 21115(TCP), 21116(UDP/TCP), 21118(TCP) Thereby RustDesk requires more than one port and a specific port gets specified via text/html 2024-05-10T16:08:17+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/tutorials/download-videos-from-url?rev=1715357297&do=diff Download Videos from URL (on Linux) This tutorial was not tested for downloading videos from Youtube! It was tested against PeerTube. 1. Get the exact URL of the video. Therefore enter keepv.id and paste the URL. After that select the resolution that you want to download. Open the video on it's source text/html 2024-04-28T19:22:07+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/monitoring/grafana?rev=1714332127&do=diff Grafana MySQL data source Get Max/Min Value From Selected Interval To get the max/min/avg-value from a selected interval in Grafana when using MySQL as data storage just add the following expression to your SQL query: <SQL-QUERY> WHERE $__timeFilter(<time-column>) text/html 2024-04-11T19:32:02+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/openvpn?rev=1712863922&do=diff text/html 2024-04-11T19:31:59+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/ovpn?rev=1712863919&do=diff OpenVPN Start OpenVPN at startup with systemd * Move the .ovpn file to /etc/openvpn/. Choose the <name-of-connection> carefully, the name is required to select the connection via systemd. mv <config-file>.ovpn /etc/openvpn/<name-of-connection>.conf text/html 2024-04-10T17:40:55+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/debian/proxmox/openvpn-in-lxc?rev=1712770855&do=diff OpenVPN in LXC This guide quickly describes how to connect a Linux container as VPN client with OpenVPN. There are some settings on the host's side required, because OpenVPN requires a specific tun interface. * Edit the config of the container that should get VPN functionalities text/html 2024-04-09T20:25:14+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/debian/nmcli?rev=1712694314&do=diff nmcli (NetworkManager CLI) Quick Commands View current connections: nmcli connection show View device information from all devices: nmcli device show Add new interface with static IP First get the name of the interface: ip a Then add a new connection: text/html 2024-04-03T14:06:24+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/rustdesk?rev=1712153184&do=diff Rustdesk - Remote Desktop Software Rustdesk is a free open source self-hostable remote desktop software for Linux, MacOS, Windows and Android. → To their GitHub: github.com/rustdesk → Now also available on flathub: flathub.com - com.rustdesk.RustDesk Configure Rustdesk client for Linux from CLI text/html 2024-04-03T14:05:20+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/xorg-screenblanking?rev=1712153120&do=diff text/html 2024-04-03T13:53:51+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/monitoring/start?rev=1712152431&do=diff Monitoring Currently under construction/development... This namespace has the following content: monitoring index text/html 2024-04-03T13:49:35+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/hotfixes?rev=1712152175&do=diff text/html 2024-03-21T20:11:54+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/gui-based-backup-solutions?rev=1711051914&do=diff Backup Solutions (GUI) This site requires a rework. We're working on it! Although we leave it online for documentation purposes. Pika Simple graphical backup solution based on (Remote or local backup): Works on: * Linux (GNOME) Installation as flatpak: text/html 2024-03-21T20:11:34+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=linux%3Alinux-tutorials%3Apika-backup.png&ns=linux%3Alinux-tutorials&rev=1711051894&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/linux/linux-tutorials/pika-backup.png?w=500&amp;h=500&amp;tok=a4b558" alt="pika-backup.png" loading="lazy" width="500" height="500" /> text/html 2024-03-21T20:04:49+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=linux%3Alinux-tutorials%3Akbackup.png&ns=linux%3Alinux-tutorials&rev=1711051489&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/linux/linux-tutorials/kbackup.png?w=500&amp;h=500&amp;tok=21e727" alt="kbackup.png" loading="lazy" width="500" height="500" /> text/html 2024-03-21T20:01:25+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=linux%3Alinux-tutorials%3Avorta.png&ns=linux%3Alinux-tutorials&rev=1711051285&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/linux/linux-tutorials/vorta.png?w=500&amp;h=500&amp;tok=a70c67" alt="vorta.png" loading="lazy" width="500" height="500" /> text/html 2024-03-19T12:36:31+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/development/our-developments?rev=1710851791&do=diff Projects developed by Brecht-IT Scripts Some simple scripts that should make our life more easy! ipfire-extensions/openvpn-notifier A simple script for IPFire to notify hostmasters when a OpenVPN cert will expire soon: github.com - Zyzonix - attic/ipfire-extensions proxmox-tweaks A simple script that run daily and checks, if Proxmox got an update, that text/html 2024-03-15T08:08:29+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/command-collection/stress-ng?rev=1710490109&do=diff stress-ng This tool can be used to “stress” a PC e.g. for testing purposes. Install it on Debian by running: apt install stress-ng Example command for only stressing the CPU: stress-ng -c 0 text/html 2024-03-13T09:41:14+00:00 BIT (bit@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/debian/proxmox/remove-subscription-badge?rev=1710322874&do=diff Remove Proxmox subscription badge To remove the subcription badge that is displayed after logging in into Proxmox VE or Proxmox BS, you can either manually edit the proxmoxlib.js under /usr/share/javascript/proxmox-widget-toolkit or install our script. text/html 2024-03-09T18:20:15+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/debian/proxmox/bs?rev=1710008415&do=diff Backup Server Currently under construction/development... text/html 2024-03-07T20:20:58+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/changelog?rev=1709842858&do=diff FIXES changelog text/html 2024-03-06T19:17:01+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/tutorials/flash-fritz-7520-as-7530?rev=1709752621&do=diff Flash Fritz!Box 7520 with Fritz!Box 7530 Image This tutorial hasn't been tested yet! Currently under construction/development... But here's what you might be looking for: bei-den-pilzen-de - Upgrade Fritz!Box 7520 to 7530 [German] text/html 2024-03-02T23:05:30+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/command-collection/git?rev=1709420730&do=diff git (GitHub CLI) Packages: sudo apt install gh git Configuring gh and git Login via (just follow the prompts) gh auth login Config username and email: -> remove --global option to just configure the login for one specific repository/directory git config --global user.email "<email-address>" text/html 2024-03-02T20:58:11+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/tutorials/aerohive/openwrt-on-ap121?rev=1709413091&do=diff Aerohive AP121 - Installing OpenWRT After more than 10 years in use and licensing issues we decided to replace our WiFi installation consisting of about 40 Aerohive AP121 newer models. Because all APs are still able to work, we thought about the future use of our devices. As we already use a lot of open source software, we thought it would be nice if also our APs are running with Linux and this is actually possible with aerohive index text/html 2024-03-02T18:36:17+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=tutorials%3Aaerohive%3Aap121-cabling.png&ns=tutorials%3Aaerohive&rev=1709404577&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/tutorials/aerohive/ap121-cabling.png?w=500&amp;h=500&amp;tok=bed602" alt="ap121-cabling.png" loading="lazy" width="500" height="500" /> text/html 2024-03-02T17:52:49+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=tutorials%3Aaerohive%3Aaerohive-ap121.jpg&ns=tutorials%3Aaerohive&rev=1709401969&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/tutorials/aerohive/aerohive-ap121.jpg?w=500&amp;h=500&amp;tok=e53d0f" alt="aerohive-ap121.jpg" loading="lazy" width="500" height="500" /> text/html 2024-03-02T17:47:01+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/tutorials/aerohive/openwrt-on-ap121-wpa-enterprise-setup?rev=1709401621&do=diff Setting up AP121 with OpenWRT as enterprise WPA AP Currently under construction/development... But here's what you might be looking for: openwrt.org - WPA Enterprise AP text/html 2024-03-02T17:45:29+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/tutorials/aerohive/start?rev=1709401529&do=diff Aerohive - OpenWRT This namespace has the following content: aerohive index text/html 2024-03-02T17:42:56+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/tutorials/aerohive/1-openwrt-on-ap121?rev=1709401376&do=diff text/html 2024-03-02T17:42:15+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/tutorials/aerohive/openwrt-on-ap121-1?rev=1709401335&do=diff text/html 2024-03-02T17:40:35+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/tutorials/aerohive/openwrt-on-ap121-fast-roam?rev=1709401235&do=diff Fast roaming on AP121 with OpenWRT Currently under construction/development... But here's what you might be looking for: openwrt.org - Setting up DAWN and band-steering in OpenWRT text/html 2024-03-02T17:39:58+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/tutorials/aerohive/openwrt-on-ap121-mesh?rev=1709401198&do=diff text/html 2024-03-02T17:36:05+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/tutorials/aerohive/openwrt-on-ap121-dynamic-vlans?rev=1709400965&do=diff Dynamic VLANs on Aerohive AP121 with OpenWRT Currently under construction/development... But here's what you might be looking for: openwrt.org - Dynamic Vlans on OpenWRT router text/html 2024-03-02T17:29:20+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/tutorials/openwrt-on-ap121?rev=1709400560&do=diff text/html 2024-02-27T06:32:32+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/development/python?rev=1709015552&do=diff Python Snippet list Edit file The following functions can be used to edit any provided file. In the selected file a string can be searched that can then be replaced with a given string. Show/Hide # search file for string def searchLineWithString(self, string, file): for num, line in enumerate(file, 1): if string in line: return num - 1 # edit line dependend on provided parameter def editLine(self, file, searchString, newLine): selectedFile = open(file, "r") … text/html 2024-02-26T08:05:16+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/sticky_notes?rev=1708934716&do=diff text/html 2024-02-13T14:40:22+00:00 Anonymous (anonymous@undisclosed.example.com) http://fixes.brecht-schule.hamburg/start?rev=1707835222&do=diff Welcome to the Public Wiki of Brecht-IT ---------- We are very pleased that you have found your way through the internet jungle to our public wiki - a warm-hearted welcome! ---------- Recent changes: Quicklinks: * Information about this wiki can be found here: text/html 2024-02-13T14:35:19+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/about/about_this_wiki?rev=1707834919&do=diff text/html 2024-02-13T14:35:18+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/about/about-this-wiki?rev=1707834918&do=diff About this Wiki Our intention Already a few months before we created this wiki in spring 2023, there were internal considerations of creating a public wiki. As a technology affine person or system admin it's always the same: Searching the internet for a solution to a problem that is bothering you, wondering whether you could be the only person running into this specific bug. After hours of reading tickets, lengthy forum posts and documentation, it gets frustrating and you are standing empty … text/html 2024-02-11T12:46:35+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/monitoring/snmp?rev=1707655595&do=diff text/html 2024-02-11T12:46:19+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/raspberry-pi/pimox?rev=1707655579&do=diff text/html 2024-02-10T10:07:52+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/tutorials/redirect-subdomains-to-different-ports-via-dns?rev=1707559672&do=diff Redirecting Subdomain to specific Port via DNS Use case: Hosting multiple minecraft servers on one Server with the same IP. Therefore you can use SRV-records: Add a DNS record with the following scheme to at your DNS: _service._proto.name. TTL class SRV priority weight port target text/html 2024-02-07T15:05:29+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/enable-wol-persistent?rev=1707318329&do=diff Enable Wake-on-LAN persistent This guide was tested on Ubuntu 22 and Debian 11/12. Check current setting and enable manually Firstly find out the interface on which WoL should be enabled. Therefore use ifconfig that is shipped with the net-tools-package on Debian/Ubuntu: text/html 2024-01-28T13:04:54+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/kde/lockscreen-time-format?rev=1706447094&do=diff [KDE/Plasma 5] Change time on lock screen to 24h format Navigate to the following directory: cd /usr/share/plasma/look-and-feel/org.kde.breeze.desktop/contents/components Then edit Clock.qml: sudo nano Clock.qml Find the following line: text: Qt.formatTime(timeSource.data[ text/html 2024-01-28T12:57:47+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/kde/start?rev=1706446667&do=diff KDE/Plasma This namespace has the following content: kde index text/html 2023-12-29T19:23:36+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/debian/proxmox/ve?rev=1703877816&do=diff Virtual Environment Remove Nodes from Cluster without Quorum Firstly get an overview about all active nodes (nodes to be removed must be running), therefore run the following command on a node that should stay in the cluster: pvecm nodes Then shut down the nodes to be removed and delete the node with this command: text/html 2023-12-19T07:39:02+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/set-persistent-mac-rtl8111?rev=1702971542&do=diff Set persistent MAC for RTL8111/8168/8411 (r8169) using udev This tutorial does only work on systems that use udev, like IPFire! The Linux kernel mod r8169 seems to set random MAC addresses for Realtek's ethernet cards 8111/8168/8411 every time this devices gets booted. This behaviour also seems to be intended like described in text/html 2023-12-19T07:26:37+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=linux%3Alinux-tutorials%3Apersistent_mac_rtl8111_lspci.png&ns=linux%3Alinux-tutorials&rev=1702970797&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/linux/linux-tutorials/persistent_mac_rtl8111_lspci.png?w=500&amp;h=500&amp;tok=811034" alt="persistent_mac_rtl8111_lspci.png" loading="lazy" width="500" height="500" /> text/html 2023-12-19T07:12:57+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/windows/chocolatey/setup-self-hostet-choco-repo?rev=1702969977&do=diff text/html 2023-12-16T22:15:32+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=raspberry-pi%3Adfrobot_router_carrier_board_gpio_pinout.jpg&ns=raspberry-pi&rev=1702764932&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/raspberry-pi/dfrobot_router_carrier_board_gpio_pinout.jpg?w=500&amp;h=500&amp;tok=cc3c97" alt="dfrobot_router_carrier_board_gpio_pinout.jpg" loading="lazy" width="500" height="500" /> text/html 2023-12-07T20:31:06+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=foldingathome-points-certificate-260305076.jpg&ns=0&rev=1701981066&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/foldingathome-points-certificate-260305076.jpg?w=500&amp;h=500&amp;tok=32b8de" alt="foldingathome-points-certificate-260305076.jpg" loading="lazy" width="500" height="500" /> text/html 2023-12-07T20:31:06+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=foldingathome-wus-certificate-260305076.jpg&ns=0&rev=1701981066&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/foldingathome-wus-certificate-260305076.jpg?w=500&amp;h=500&amp;tok=84171b" alt="foldingathome-wus-certificate-260305076.jpg" loading="lazy" width="500" height="500" /> text/html 2023-12-04T17:06:11+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=linux%3Alinux-tutorials%3Awaterfox_settings_titlebar.png&ns=linux%3Alinux-tutorials&rev=1701709571&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/linux/linux-tutorials/waterfox_settings_titlebar.png?w=500&amp;h=500&amp;tok=fec390" alt="waterfox_settings_titlebar.png" loading="lazy" width="500" height="500" /> text/html 2023-12-04T17:06:11+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=linux%3Alinux-tutorials%3Awaterfox_settings_custom_titlebar.png&ns=linux%3Alinux-tutorials&rev=1701709571&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/linux/linux-tutorials/waterfox_settings_custom_titlebar.png?w=500&amp;h=500&amp;tok=2fa932" alt="waterfox_settings_custom_titlebar.png" loading="lazy" width="500" height="500" /> text/html 2023-12-04T17:06:11+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=linux%3Alinux-tutorials%3Awaterfox_settings_system_titlebar.png&ns=linux%3Alinux-tutorials&rev=1701709571&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/linux/linux-tutorials/waterfox_settings_system_titlebar.png?w=500&amp;h=500&amp;tok=955556" alt="waterfox_settings_system_titlebar.png" loading="lazy" width="500" height="500" /> text/html 2023-11-28T19:05:01+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=linux%3Alinux-tutorials%3Alinux_completely_themed_windows10.png&ns=linux%3Alinux-tutorials&rev=1701198301&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/linux/linux-tutorials/linux_completely_themed_windows10.png?w=500&amp;h=500&amp;tok=f5bf67" alt="linux_completely_themed_windows10.png" loading="lazy" width="500" height="500" /> text/html 2023-11-28T18:56:23+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=linux%3Alinux-tutorials%3Atask_view_resized.ico&ns=linux%3Alinux-tutorials&rev=1701197783&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/linux/linux-tutorials/task_view_resized.ico?w=500&amp;h=500&amp;tok=bbb0bf" alt="task_view_resized.ico" loading="lazy" width="500" height="500" /> text/html 2023-11-28T18:56:23+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=linux%3Alinux-tutorials%3Awindows10icon.png&ns=linux%3Alinux-tutorials&rev=1701197783&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/linux/linux-tutorials/windows10icon.png?w=500&amp;h=500&amp;tok=6f328f" alt="windows10icon.png" loading="lazy" width="500" height="500" /> text/html 2023-11-28T18:49:07+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=linux%3Alinux-tutorials%3Ataskmanager_icons-only.png&ns=linux%3Alinux-tutorials&rev=1701197347&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/linux/linux-tutorials/taskmanager_icons-only.png?w=500&amp;h=500&amp;tok=75510b" alt="taskmanager_icons-only.png" loading="lazy" width="500" height="500" /> text/html 2023-11-28T18:49:07+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=linux%3Alinux-tutorials%3Ataskmanager_taskmanager.png&ns=linux%3Alinux-tutorials&rev=1701197347&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/linux/linux-tutorials/taskmanager_taskmanager.png?w=500&amp;h=500&amp;tok=6c2844" alt="taskmanager_taskmanager.png" loading="lazy" width="500" height="500" /> text/html 2023-11-28T18:48:06+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=linux%3Alinux-tutorials%3Ataskbar_search_willow.png&ns=linux%3Alinux-tutorials&rev=1701197286&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/linux/linux-tutorials/taskbar_search_willow.png?w=500&amp;h=500&amp;tok=a35d51" alt="taskbar_search_willow.png" loading="lazy" width="500" height="500" /> text/html 2023-11-28T18:44:06+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=linux%3Alinux-tutorials%3Ataskbar_complete.png&ns=linux%3Alinux-tutorials&rev=1701197046&tab_details=history&media_do=diff&do=media <img 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(zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=linux%3Adebian%3Apostfix_config_host_file.png&ns=linux%3Adebian&rev=1688109002&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/linux/debian/postfix_config_host_file.png?w=500&amp;h=500&amp;tok=3ae901" alt="postfix_config_host_file.png" loading="lazy" width="500" height="500" /> text/html 2023-06-30T07:05:26+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=linux%3Adebian%3Apostfix_config_systemmail.png&ns=linux%3Adebian&rev=1688108726&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/linux/debian/postfix_config_systemmail.png?w=500&amp;h=500&amp;tok=2003db" alt="postfix_config_systemmail.png" loading="lazy" width="500" height="500" /> text/html 2023-06-30T07:03:15+00:00 Zyzonix (zyzonix@undisclosed.example.com) 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