GNU Linux bash: how to get less with syntax highlighting?
23.Mar.2025

copy pasting lines from vim to other programs is a pain (selecting text with mouse Ctrl+C Ctrl+V process not working properly?) sometimes to debug a bash script it’s usefull to copy line-by-line and paste line-by-line to see what it does […]

alternative search engines most users did not know exist
16.Mar.2025

https://duckduckgo.com/ there is even a tor version wich might sometimes not work https://duckduckgogg42xjoc72x3sjasowoarfbgcmvfimaftt6twagswzczad.onion/ surely well known, in the back it MIGHT forward all input (anonymously) to Micro$oft https://archive.org up to now doing a very good job https://yep.com/ its okay but […]

Debian 13 wifi usb adapter trouble (edimax works :D)
09.Mar.2025

forget about all other wifi adapters, get the Edimax Technology Co., Ltd EW-7612UAn V2 802.11n Wireless Adapter [Realtek RTL8192CU] as long as it’s produced… it just works out of the box on almost any GNU Linux distro including raspberry pi […]

where are the kernel modules? (how to find the now xz packed ko files)
09.Mar.2025

find / -iname *.ko.xz|grep rtl; # find all rtl = RealTek related kernel modules /usr/lib/modules/6.11.5-amd64/kernel/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.ko.xz /usr/lib/modules/6.11.5-amd64/kernel/drivers/net/wireless/realtek/rtl818x/rtl8180/rtl818x_pci.ko.xz /usr/lib/modules/6.11.5-amd64/kernel/drivers/net/wireless/realtek/rtl818x/rtl8187/rtl8187.ko.xz /usr/lib/modules/6.11.5-amd64/kernel/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/rtl8821ae.ko.xz /usr/lib/modules/6.11.5-amd64/kernel/drivers/net/wireless/realtek/rtlwifi/rtl_pci.ko.xz /usr/lib/modules/6.11.5-amd64/kernel/drivers/net/wireless/realtek/rtlwifi/rtl8192c/rtl8192c-common.ko.xz /usr/lib/modules/6.11.5-amd64/kernel/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/rtl8192ce.ko.xz /usr/lib/modules/6.11.5-amd64/kernel/drivers/net/wireless/realtek/rtlwifi/btcoexist/btcoexist.ko.xz /usr/lib/modules/6.11.5-amd64/kernel/drivers/net/wireless/realtek/rtlwifi/rtl8723com/rtl8723-common.ko.xz …

GNU Linux how to convert from doxygen (filename.dox) to asciidoc (filename.adoc) and then to filename.pdf and filename.html
05.Mar.2025

# recommended to do this on a vm apt update apt install doxygen ruby-asciidoctor-pdf pandoc doxygen -g Doxyfile vim Doxyfile #————————————————————————— # Configuration options related to the DOCBOOK output #————————————————————————— # If the GENERATE_DOCBOOK tag is set to YES, doxygen […]

04.Mar.2025

[+] interesting good news: https://docs.armbian.com/User-Guide_Armbian-Software/Media/#nextcloud-content-collaboration-platform [+] there is an alternative to sharing code other than M$ bought github https://codeberg.org/ (may it be NEVER for sale) [-] also interesting but probably bad news: scientists at M$ seem to do dishonest science around quantum […]

GNU Linux ubuntu ssh root login not possible
21.Feb.2025

ubuntu managed to disable root login, no matter what is set in /etc/ssh/sshd_config so all ssh-copy-id root@123.123.123.123 fails the only possible way to login straight as root (only on test systems!) is to 1. manually create mkdir /root/.ssh/ touch /root/.ssh/authorized_keys […]

not the first Use-after-free vulnerability in Adobe Reader – no pdf mail attachments are ALSO not safe (UNFORTUNATELY) (Minimal GNU Linux OS and (of course) Doom runs in PDF document)
10.Feb.2025

cybersecurity wise mankind is doomed if mad CEOs (on drugs?) think it’s a good idea to allow the most bizare embedding of software into word.doc, excel.xls, just-want-to-print-that-file-properly.pdf and other formats “Use-after-free vulnerability in Adobe Reader and Acrobat 10.x before 10.1.9 […]

31.Jan.2025

why have one package management system if the user can have 3x 4x 5x? https://en.wikipedia.org/wiki/APT_(software) https://salsa.debian.org/apt-team/apt.git to keep it simple imho it would be better to use only one “one to rule em all” (maybe python pip as exception) https://www.reddit.com/r/Ubuntu/comments/a364ii/proscons_of_snap_vs_apt/ […]

GNU Linux emacs stallman + linus favorite IDE revisited
19.Jan.2025

as a long-time vim user (R.I.P Bam) there are very interesting youtube video tutorials about emacs how to setup? https://github.com/hubisan/emacs-wsl?tab=readme-ov-file#install-ubuntu of course instead of apt install emacs, every true hardcore user compiles programs from src 😉 hostnamectl; # tested on […]

GNU Linux kvm virsh created snapshots do not show up in virt-manager
19.Jan.2025

if virsh (terminal) created snapshots do not show up in virt-manager, try the refresh button at the bottom good luck all involved related links: https://dwaves.de/2021/08/12/gnu-linux-how-to-kvm-qemu-start-clone-multiple-disks-snapshot-restore-revert-delete-shutdown-all-vms-start-all-vms-with-keyword-in-name-snapshot-all-vms-add-remove-disks/ https://dwaves.de/2020/12/05/gnu-linux-debian-10-11-how-to-install-kvm-virtualization-qemu-basic-virsh-commands-kvm-cheat-sheed-howto-workaround-virt-manager-emulator-may-not-have-search-permissions-for-the-path/

how to run flash swf via GNU Linux Debian 13 via ruffle
11.Jan.2025

“A Flash Player emulator written in Rust ” this is PRETTY cool yes html + javascript basically decimated the use of the FlashPlayer but flash had some strong points: java like language flexible % layouts were easy to make still […]