ut2004 – players vs (more) bots (than players)

why mess with this old game? (it is on steam… for some countries) because it has it can be run on GNU Linux online multiplayer a lot of game modes such as “onslaught” (build & defend bases) capture the flag […]

MARS helicopter “Ingenuity” runs GNU Linux :)

“Linux has made it to Mars” “The Red Planet runs on Linux” (src: theverge.com) just hope the #Perseverence Mars rover ain’t running Windows 🙈 (then it is lost already X-D) it will start a flight in the next 2-3 months […]

phpBB – Profile Avatar Picture 6KBytes size limit

… because one also cares about beauty… a default avatar picture is not an option… but phpBB has a very strict 6KBytes max file size limit for Profile Avatar Pictures…  which is almost impossible to reach with format.jpg or format.png […]

Monolithic Hybrid Micro Nano Kernel OS and examples

Why Hybrid? “Most hybrid kernels start as monolithic kernels and begin moving components into user land, primarily as security to support 3rd-party components and drivers which may be malicious or buggy. An example of a hybrid kernel design may keep […]

Die Vermessung des Patienten: Wem gehören meine Gesundheitsdaten? – Warum es immer weniger Ärzte und Arztpraxen in Deutschland geben wird und das Gesundheitssystem immer schlechter wird – Measuring the patient: who owns my health data? Why there will be fewer and fewer doctors and medical practices in Germany and the health system will get worse and worse

(scroll to bold letters if u want English) Bitte nicht falsch verstehen, bin auch für Datenschutz, definitiv, aber dann müssten wir SOFORT Microsoft Windows Office, WhatsApp, Facebook, Twitter und Google ABSCHALTEN, wenn man es mit dem Datenschutz ernst meint, das […]

PostgreSQL 9.4 for RHEL/CentOS 8 – x86_64 – Failed to download metadata for repo ‘pgdg94’ Error: Failed to download metadata for repo ‘pgdg94’

when trying to update CentOS8 with PostgreSQL installed in this tutorial this errors shows up: repo: downloading from remote: pgdg94 error: Status code: 404 for https://download.postgresql.org/pub/repos/yum/9.4/redhat/rhel-8-x86_64/repodata/repomd.xml (https://download.postgresql.org/pub/repos/yum/9.4/redhat/rhel-8-x86_64/repodata/repomd.xml) PostgreSQL 9.4 for RHEL/CentOS 8 – x86_64 261 B/s | 162 B 00:00 […]

TeamViewer – the ultimate security problem?

convenience vs security problem: remote support via internet in COVID19 pandemic days is basically a must for many companies, but does it have to run non-stop on computers that control sensitive machines and systems such as energy and water-supply? ABSOLUTELY […]

crazy dose of science

to learn something new is fun to have one’s head messed up… not so much… ever heard of Buckminster Fuller? the guy wo inveted the “fish car” and big fan of geodesic domes the idea was great… but the marketing? […]


# should work as simple as ffmpeg -i “input.mkv” “output.mp4” # tested on hostnamectl; Operating System: Debian GNU/Linux 10 (buster) Kernel: Linux 4.19.0-13-amd64 Architecture: x86-64 ffmpeg -version ffmpeg version 4.1.6-1~deb10u1 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 8 […]

are meta-languages the solution? – Corona-Virus-Pandemic-Lockdown increased activity on GitHub – trends in programming languages according to GitHub (Microsoft) and StackOverFlow – the loved – the dreaded – the wanted

vs activity on StackOverflow: https://insights.stackoverflow.com/survey/2020#technology-most-loved-dreaded-and-wanted-languages-loved comment: there is a saying “never trust a chart, that you did not fake yourself” X-D (which probably just means: the data will never be a perfectly representation of reality (because some users block JavaScript […]

SonicWall hardware VPNs hit by worst-case 0-zero-day-exploit attacks

accroding to BleepingComputer: “zero-day vulnerability in their VPN products” (so not FallOut of SolarWinds-orion-auto-update-software-supply-chain) “…have information about hacking of a well-known firewall vendor and other security products by this they are silent and do not release press releases for their […]