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) […]
why are those data leaks problematic? because scammers and spammers will use this data to even better scam (social engineer) the affected users that is why it is essential to give those platforms (if the user needs them) as little […]
computers are no way perfect: the rise of the machines: who is scared of killer robots? who is scared of doctors, judges and police blindly trusting in AI and computer output? “we are driving in (heavy) rain right now with […]
update: NASA awards SpaceX with MoonLander contract building rockets is hard building BIG rockets is harder building BIG REUSABLE rockets is even harder what is currently called “StarShip” is actually only the upper (2nd) stage what will be the full […]
is a powerful and fast paper scanner, up to now it is really a great work horse 🙂 (make sure to buy the N (Network!) version) after round about 200.000 pages (!) it quits each job with “Scheduled Maintenance” alert… […]
for some reason… did ext3 on RAID1 with two disks (seagate + wd) of different sized (2TB but they (of course) are not not exactly 2TB) not sure where the problem here was 1) kernel 2) ext3 3) the disks… […]
first some praise: the maintainers of grub did their best they could to bring about a great piece of software, no doubt about that. the question is: could less be more? when Greg Kroah-Hartman suggested to get rid of the […]
not exactly the latest hardware but still want to give users some advice where to look at. the Gigabyte P35 DS3 has 6x SATA ports together with a tower case that can house many harddisk, makes for a great linux […]
the SanDisk Ultra 32GB are fast, cheap USB sticks that user can get around 8€ online. when it keeps mounting “read only” and refuses to mount read+write, “I’ve contacted SanDisk, and they’ve said it happened “beacuse the flash drive has […]
the tech guy in this video says: his “smart” APC UPS – “battery exploded and leaked all over the place” have two UPS here one from APC and one from EATON. and the EATON 5PX. EATON 5PX 2200 pros and […]
# become root su – root; # rpm based yum install nmap # apt based apt install nmap # find snmp enabled devices # (UDP port 161, can not be tested with telnet (can only do TCP)) nmap -sU -p […]
Not a lot of humans on this planet manage to entertain and educate at the same time. ElectroBOOM does it nicely, one can find him like that: it is just outstanding funny and entertaining… X-D singing with tesla coils: this […]
“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 […]
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. […]
spoiler alert: this is work in progress… was told by Adaptec support to upgrade firmware. did not do that yet – because firmware upgrades on production systems are sometimes very risky endeavors. one of the most important features of a […]
monitoring the integrity of a RAID is critical for fast replacement of failed harddisks (ideally one has at least one spare drive already in the machine) if not – it would be great if hard- and software-raid would send a […]
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. […]
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 […]
tested on: CentOS Linux 7 with Kernel: 3.10.0-957 with cifs-utils.x86_64 version: 6.2-10.el7 when you ping the host (in this case a QNAP NAS) you – as the administrator – quickly realize – the host is up. but samba client (cifs […]
i was hoping for a similar procedure for the MFC-6490CW had no luck with this: Hold down the “Menu” key. (for MFC-6890CDW it is the “Copy” key) While still holding the menu key, unplug the machine and plug it back […]
dmidecode -t 17 # dmidecode 3.0 Getting SMBIOS data from sysfs. SMBIOS 2.7 present. Handle 0x005D, DMI type 17, 34 bytes Memory Device Array Handle: 0x005E Error Information Handle: 0x0062 Total Width: 64 bits Data Width: 64 bits Size: 4096 […]
“The cost to companies from malware and “malicious insider”-related cyberattacks jumped +12 percent in 2018 and accounted for one-third of all cyberattack costs, according to new research published today by Accenture and the Ponemon Institute.” src: helpnetsecurity.com logical consequence: stop […]
… this is why no usb stick and no cable can be trusted… Thunderbolt / PCI-Express is having similar issues “Abstract—Direct Memory Access (DMA) attacks have beenknown for many years: DMA-enabled I/O peripherals have com-plete access to the state of […]
When your CPU is 32Bit and you try to boot a 64Bit OS / load a 64Bit program, it will crash/panic/segfault, it won’t boot beyond the grub boot selection screen. “Ben Hutchings (blog) a Debian developer and Linux kernel maintainer, has […]
Update: USB 3.0 can interfere with WiFi “USB 3.0 has a 5Gbps signaling rate. The USB 3.0 specification requires USB 3.0 data to be scrambled and it requires spread-spectrum. The noise from USB 3.0 data spectrum can be high (in […]
long story short: “The Year 2038 problem is where the Unix time can no longer be stored in a signed 32-bit integer and thus after 19 January 2038 will begin wrapping around as a negative number for representing the number […]
is when one’s life depends on (especially when closed) source code that one has not written oneself.
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 […]
Gleich vorweg: Wer das Geld hat, gibt direkt 1.298,00 € (mit 3TB Festplatte) für ein System aus, welches Bilder 24-7 zwar Analog überträgt, dann aber ein laufend (ohne Unterbrechung) via einem “Receiver mit Festplatte” digitalisiert und auf Bewegung etc. analysiert und […]
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 […]