http://fixes.brecht-schule.hamburg/ 2026-05-01T09:38:51+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 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 2025-03-26T18:27:55+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 2025-01-21T17:25:43+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 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 2024-12-25T13:12:34+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/change-dns-server?rev=1735132354&do=diff text/html 2024-12-25T13:12:12+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 2024-12-25T13:08:14+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/systemd-command-periodically?rev=1735132094&do=diff text/html 2024-12-25T13:04:07+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 2024-04-11T19:32:02+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 2024-04-03T14:06:24+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 2024-04-03T13:49:35+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 2024-02-26T08:05:16+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/linux/linux-tutorials/sticky_notes?rev=1708934716&do=diff text/html 2024-02-07T15:05:29+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 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 2023-12-04T17:06:11+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 src="http://fixes.brecht-schule.hamburg/_media/linux/linux-tutorials/taskbar_complete.png?w=500&amp;h=500&amp;tok=a73378" alt="taskbar_complete.png" loading="lazy" width="500" height="500" /> text/html 2023-11-28T17:13:57+00:00 Zyzonix (zyzonix@undisclosed.example.com) http://fixes.brecht-schule.hamburg/?image=linux%3Alinux-tutorials%3Aannoying_dots.png&ns=linux%3Alinux-tutorials&rev=1701191637&tab_details=history&media_do=diff&do=media <img src="http://fixes.brecht-schule.hamburg/_media/linux/linux-tutorials/annoying_dots.png?w=500&amp;h=500&amp;tok=630c31" alt="annoying_dots.png" loading="lazy" width="500" height="500" />