it sounds crazy but… as machines as cars and tractors become more complicated and computerized not only are their parts DELIBERATELY designed to break after a certain time (planned obsolescence) (in order to sell more spare parts, make more profit) […]
always say something positive first: FritzBoxes are great (DSL/LTE/…) internet routers (up to now) all FritzBoxes work with 12V DC (which is great for usage with small solar power stations (that are usually 12V based)) high quality & reliable secure […]
self made Flat Roof mount: 25kg Steel Plate hope it will survive the next storm… (maybe need to place additional weight on it) How to get StarLink Support: only via the iOS and Android App update: now starlink support is […]
to recover the data: how to mount luks2 encrypted volume possibility: remove harddisk, attach to sata2usb adapter, then mount on different machine like this: # unlock encrypted harddisk udisksctl unlock -b /dev/sdb5 udisksctl mount -b /dev/mapper/ubuntu–vg-root Mounted /dev/dm-1 at /media/dpm/e8cf82c0-f0a3-41b3-ab28-1f9d23fcfa72 […]
in short: STAY AWAY FROM IT! all in all this mp3 player is a waste of resources and the user’s time (unless someone comes along and fixes the firmware X-D (but the playback problem could also be “in hardware”)) what […]
“The function resets the cache not only when necessary, but also on the “order” of any application. Linus Torvalds, the Creator of the Linux kernel, opposed the addition of the L1 data cache reset function when context switching to the […]
for good overview it makes sense to label the harddisk partitions according to functionality (what is their purpose?) GNU Linux bash – how to label partitions tune2fs (xfs & ext4) all infos about one’s harddisk: # tested on: hostnamectl Static […]
every once and a while… laptops and notebooks run out of battery… and when one manages to plug them in just 1% before stalling… the wifi on Debian might already be in hibernation and hardware on off does not help […]
“In the popular series of wireless keyboards Fujitsu LX390 found two dangerous vulnerabilities. According to researchers from the company SySS, exploitation of vulnerabilities allows nearby attackers to “spy” passwords entered on the keyboard, or even to seize control of the […]
what IT can learn from nature: (src) mostly US users affected. Big Business: Big Companies and Big Money can afford Big Staff to maintain and secure their products, but they also provide Big Infrastructure (AWS, Office) and thus a single […]
screw Qualcomm, what one wants is should work out of the box with recent Linux kernels on Open Source drivers only: Recommended tested Hardware – Superb Wifi WLAN Adapter Chipset Atheros AR9285 Mini PCIE for GNU Linux Debian 10 Ubuntu […]
tested on: Operating System: CentOS Linux 7 (Core) CPE OS Name: cpe:/o:centos:centos:7 Kernel: Linux 4.15.9 Architecture: x86-64 # using vboxmanage –version 5.2.6r120293 ah lovely isn’t it? BSOD Win98 style… errors were NOT the exception, they were THE NORM (and still […]
to be straight: have not managed yet to unlock a pin locked ipad 3 and ipad 4 and/or recover the data. it is easy to just overwrite the ipad with the latest firmware via itunes. but i want to backup […]
https://youtu.be/70Blz9hyAz8 While “backdoors” in hardware sound like a good idea… you don’t know how hackers are using it to sabotage infrastructure or extort bitcoins of another country’s companies… see “backdoor in cisco router“. IT IS F**** DANGEROUS! ESPECIALLY if it […]
update: 2021-03: https://www.space.com/air-force-emp-attacks-protection fast answers: EMP is a serious threat to all survival of electronic devices (esp without a proper (double!) metal casing) get one of those: wrap whatever shall be EMP protected into cartonage + wrap aluminium foil around […]
aim: the harddisk of a macbook has grown too small (256GB), so all data shall be transferred to a new bigger harddisk (512GB SSD) hardware: you will need an external harddisk and switch in your new bigger harddisk. usb to […]
Update: 2020.03 “The newly developed Rowhammer- attack TRRespass can crack the RAM-a security mechanism by many DDR4-DRAM-modules as well as LPDDR4 Chips. Until now, these were considered to be almost immune to Rowhammer attacks.” https://www.com-magazin.de/news/sicherheit/software-hammer-ram-schutz-attackiert-2515621.html Update: 2019.10 Zombieload is back. […]
2018-04: RISC-V CPUs not affected by spectre & meltdown “No announced RISC-V silicon is susceptible, and the popular open-source RISC-V Rocket processor is unaffected as it does not perform memory accesses speculatively.” (2018-01-05 src) “If you’re selling an IoT sensor […]
smart and ssds? SMART attributes Although S.M.A.R.T. status items vary by software, the most important item is “Health”. This is a general indication of error-resolution and maintenance. Details are usually listed after the Health score, indicating any areas that need […]
if you want to find out what chipset / mainboard your PC / Laptop / Notebook is using and other details about the hardware. unfortunately this is not a straight forward task… and works better / worse depending on the […]
src: https://homepage.cs.uri.edu/~thenry/resources/unix_art/ch01s07.html The Unix philosophy emphasizes building simple, short, clear, modular, and extensible code that can be easily maintained and repurposed by developers other than its creators. The Unix philosophy favors composability as opposed to monolithic design. Later summarized by […]
Update: 2019.01: Redhat CPU fixes overview: Is CPU microcode available to address CVE-2017-5715 via the microcode_ctl package? https://access.redhat.com/articles/3436091 Update: https://www.heise.de/newsticker/meldung/Intel-Prozessoren-undokumentierter-Debugging-Zugriff-erforscht-4256525.html update: from FSF: Dana Morgenstein: If there is an event at your university or in your community addressing the Intel chip […]
It is actually a scandal that the world depends on chips and operating systems – that are designed to do mass-surveillance – it seems – in order to build up a world-wide-dictatorship that no-one can escape… by information and money. […]
massively interesting article in German “how much do they know?” https://www.kuketz-blog.de/datenhaendler-wir-sind-glaesern-datensammler-teil1/ security alert: modern cpus from intel and amd have an build-in backdoor i just wonder when there will be an automatic self-destruction mechanism in your HARDWARE – “ah. You […]
Yes, they have it, and yes, it’s useful. Super Talent drives do have SMART, they use the smart tools to calculate life expectancy for the drive. Flash drives do develop errors over time, usually in the form of bad flash […]
ONLY BUY FROM HARDWARE VENDORS THAT SUPPORT FREE & OPEN SOURCE SOFTWARE! (release the sources for their drivers and documentation for their hardware) “Currently there are only a few modern wifi chipsets readily available that work with free software systems. […]
it’s so annoying… the brother devices report “toner low” and STOP PRINTING 😀 based on the page-count… not the actual toner-levels. (there used to be “windows” on the side of the toners so you could see (and the device detect) […]
“Bei Lithium-Ionen-Akkumulatoren führt eine Tiefentladung auf unter 2,4 V zu irreversibler Schädigung und zu Kapazitätsverlust. Sinkt die Spannung einer Zelle auf unter 1,5 V, sollte sie nicht mehr verwendet werden. Es ist sehr wahrscheinlich, dass sich Kupferbrücken ausgebildet haben, welche dann zu […]
open your terminal/command line: # while true ; do COMMAND ; sleep 1 ; done # executes COMMAND every second while true ; do ll ; sleep 1 ; done # show me content of current dir, every second (cool for monitoring […]
there are bugs in cpus! so don’t always say “the problem sits in front of the computer” – that’s simply not always true – if the hardware and software leaves the factory – with problems “preinstalled”. the problem started with […]