Capitalism inspires the short sighted incentives. But trust and honesty is key in long term relationships. So for a short period of time – some dishonest people might enjoy the benefits – but in the end – it comes home […]

Warum VoIP? Viele Anbieter von LTE z.B. bieten gar keine Festnetz-Telefonie an, sondern nur Internet. (das zum Teil (nicht günstiger) aber schneller (und schnurloser via Handy-Netz) als die Telekom (4G/LTE/UMTS)). D.h. man braucht dann noch einen weiteren Anbieter der die […]

don’t be evil “Google controls about 62% of mobile browsers, 69% of desktop browsers, and the operating systems on 71% of mobile devices in the world. 92% of internet searches go through Google and 73% of American adults use YouTube. […]

from version: hostnamectl Operating System: CentOS Linux 7 (Core) CPE OS Name: cpe:/o:centos:centos:7 Kernel: Linux 5.X Architecture: x86-64 cat /etc/system-release-cpe cpe:/o:centos:centos:7 all xfs related man pages: https://dwaves.de/man/xfs_admin.man.txt https://dwaves.de/man/xfs_io.man.txt https://dwaves.de/man/xfs_bmap.man.txt https://dwaves.de/man/xfs_logprint.man.txt https://dwaves.de/man/xfs_copy.man.txt https://dwaves.de/man/xfs_mdrestore.man.txt https://dwaves.de/man/xfs_db.man.txt https://dwaves.de/man/xfs_metadump.man.txt https://dwaves.de/man/xfs_estimate.man.txt https://dwaves.de/man/xfs_mkfile.man.txt https://dwaves.de/man/xfs_freeze.man.txt https://dwaves.de/man/xfs_ncheck.man.txt https://dwaves.de/man/xfs_fsr.man.txt https://dwaves.de/man/xfs_quota.man.txt […]

problem: manually changing uuids is tidious and might not yield the result you want. unfortunately have not succeeded yet with integrating an old harddisk.vdi (same uuids) back into the template vm (same uuids) – so the recommendation is: reinstall os […]

My Guide to free as possible do it yourself laptop, tested an worked on two x60s: 1. get a Lenovo x60s https://duckduckgo.com/?q=ebay+Lenovo+x60s 2. a fresh battery (they still produce replacement batteries) https://duckduckgo.com/?q=ebay+Lenovo+x60s+battery 3. get Atheros ar5b95 Wireless WiFi g42 cq42 […]

it might sound strange… and even if it sucks, but if you are concerned about security, call me paranoid but: your company’s critical infrastructure SHALL NOT BE REACHABLE BY WIFI! (especially not if you are running a nuclear power plant, […]

if you want to search all files (file size smaller than 256MBytes) for a match in it’s sha1 checksum: #!/bin/bash find / -type f -size -256M | while read fname; do checksum=$(sha1sum “$fname”); CHECKSUM=${checksum^^}; echo $CHECKSUM; done write it to […]

the similarity is startling. They could be clones! (they probably are) except: D-Link is from Taiwan (still not China) and TP-Link is from Shenzen China bought recently 3x of the TP-Link 108 and can confirm they are doing a great […]

also roaming within the “(more or less)United States of Europe” (EU) is pretty scary endavor. If you travel across the EU and wish to use your home mobile phone number – you will NEVER know what this phone call or […]

servers/clients/computers/programs/services/webservers need accurate time… they usually get it from time servers that have an atomic clock attached to their USB port. (just guessing) ping time.google.com PING time.google.com (216.239.35.4) 56(84) bytes of data. 64 bytes from time2.google.com (216.239.35.4): icmp_seq=1 ttl=46 time=43.5 […]

Pwn2Own 2020: opening a pdf can be enough to compromise system! https://youtu.be/u1udr7j9MQA?t=359 thank you ccc you are doing a lovely work – make this planet more interesting by creativity and more informed about security 🙂 keep it up 🙂 https://cdn.media.ccc.de/events/gpn/gpn19/h264-hd/gpn19-45-eng-BADPDF_-_Stealing_Windows_Credentials_via_PDF_Files_hd.mp4 […]

EDIMAX EW-7612UAn V2 THE ONLY (?) GNU Linux WIFI WLAN Adapter that works OUT OF THE BOX on all GNU Linux systems (ODROID RASPBERRY AND Desktop GNU Linux) different sizes… different standards… every year? why? it is hard to find […]

update: 2020-05 for whatever reason the following SSHDroid app does not work anymore. please checkout the even easier to use (default port: 2222) and setup: SimpleSSHD (Easy to use SSH server) – https://f-droid.org/app/org.galexander.sshd # start the ssh server app # […]

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) # where is what & updates over changes (usb disk […]

update: safety first! when it comes to important files: safety comes first thus recommend to the user that wants to go pro the following backup system: have two complete backups at two different places: backupA: at the company, USB 3.0 […]

multiple problems: distance, temperature, water, funding the discovery of exoplanets many light years away means: we shall take good care of our blue planet and share it peacefully and instead of putting all efforts into destroying each other and all […]

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. […]

ich behaupte Hetzner ist mit diesem absolut genialen Angebot weltweit absolute Spitze. Okay es ist kein XEON und kein EEC RAM, läuft aber trotzdem ziemlich gut. Warning / Achtung! Defekte Bauteile (RAM)/Festplatten werden ersetzt. Im gegensatz zu den Cloud-VMs ist […]

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 […]

update: with more or less CPU usage this device uses like 6kWh per day (rough estimate over 30 day measurement) it runs pretty quiet even on 100% CPU load 😊👍🏻🖖🏻🍻 got it cheap on eBay and wanted to take it […]

WARNING! BE VERY VERY CAREFUL! YOU CAN DESTROY YOUR SYSTEM! so better use a system that is not production important/not a live server. use a laptop that has NOTHING ATTACHED TO IT! (unplug all USB Sticks and external USB Drives) […]

What is the problem? Microsoft just came up with another closed standard file format…  Microsoft’s proprietary TNEF (Transport Neutral Encapsulation Format) often named winmail.dat or win.dat, and has a MIME type of Application/MS-TNEF is a proprietary email attachment format used […]

scroll down for ENGLISH: ) OMG! Da die IT von Baltimore sich einen Ransome-Virus eingefangen hat, können die Bürger ihre Steuern und ihre Blitzer-Tickets nicht zahlen! Wunderbar! 🙂 Mit welchem Aufwand man rechnen muss, wenn man sich von der Digitalisierung […]

the best about samba: thanks for samba, it provides users with a fast (of course depends also on harddisk speed) rock-solid no-limit-to-maximum-users file-server for maximum file-transfer-and-sharing-and-storage productivity (and they will USE that T: temp drive for EVERYTHING! prepare for TERRABYTES […]

Avoid CO2 use the Fusion Reactor in the Sky (if the 2 is pronanced German than it even rhymes) as a lot of fossil fuel is (still in 2021!) used to produce electrictiy, it is possible and recommended to set […]

google’s security lab “project zero“ has made itself a name. (you can subscribe to their rss feed with thunderbird.) Posted by Ben Hawkes, Project Zero (team lead) (2019-05-15) Project Zero’s team mission is to “make zero-day hard”, i.e. to make […]

20-30% of positive ratings as well as negative ratings (to make competition look bad) are fake! according to gallileo magazine this website tries to filter/debunk the fake from the real ratings: https://reviewmeta.com/

WARNING! central VestaCP software vendor was hacked in 2018 not sure if they fixed the problem and continue VestaCP development (a shame, it was really a very very nice web based gui to admin web and mailsevers) changing port for […]