– Linux Journal shut its doors for good :(

Linux Journal Ceases Publication: An Awkward Goodbye IMPORTANT NOTICE FROM LINUX JOURNAL, LLC: On August 7, 2019, Linux Journal shut its doors for good. All staff were laid off and the company is left with no operating funds to […]

Debian 10 Buster – how to install VirtualBox 6 (6.0.10)

was not able to manually download and install   # does not work dpkg -i virtualbox-6.0_6.0.10-132072~Debian~stretch_amd64.deb # complains about missing libcurl3 (libcurl4 is installed) but this way it works: # become fancy root su – root # update and upgrade […]

how to upgrade Alpine Linux 3.6.2 to Alpine Linux 3.7

backup/snapshot! first! checkout what releases are available: imho one can only upgrade to the next release, not leaving out steps in between. Alpine Linux 3.6.2 # current release running cat /etc/alpine-release 3.6.2 # release one wants to update to […]


what one does is tell tar to use a different program to compress the data stream. # install pigz apt install pigz # create tar archive using pigz as „compressor“ time tar -c –use-compress-program=pigz -f file.tar.gz directory # time meassures […]

Cinnamon Desktop (Gnome3 fork) vs MATE Desktop (Gnome2) a review

the fancy 3D Cube Workspace switching is done with the hotkey: Ctrl+Alt+Cursor+(Left|Right) having worked many many years with the outstanding minimalistic (Mac-like control menu) Gnome2 MATE, wanted to reinstall the laptop Lenovo t440 with Debian 9.8 and encrypted lvm partition. […]

Debian 9.8 „stretch“ setup of VirtualBox 6.0 with Cinnamon Desktop

# setup log of VirtualBox Graphical User Interface Version 6.0.10 r132072 (Qt5.7.1) # on Debian 9.8 with Cinnamon Desktop # go into software repo user@debian98:~$ cd /software/ # download latest version of software user@debian98:/software$ wget –2019-08-03 14:36:05– Resolving […]


„Linux desktop remains an unpopular choice among mainstream desktop users, making up a little more than 2% of the desktop operating system market share. This is in contrast to the web server market share, which consists of 70% of Linux-based operating systems. […]


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 […]

all xfs related man pages

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: […]

how to change uuid of logical lvm partitions

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 […]

guide for as Free as Possible Laptop (LibreBoot x60s Atheros wifi trisquel)

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

ntpd – when fundamentals fail

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 PING ( 56(84) bytes of data. 64 bytes from ( icmp_seq=1 ttl=46 time=43.5 […]

can you trust PDF attachments/files in 2019?

thank you ccc you are doing a lovely work – make this planet more interesting by creativity and more informed about security 🙂 keep it up 🙂 today i discovered a mail at my client from domain […]