let’s put it like this: no (ui or ux other) designer was involved in the process of html4 and html5 this explains it was so hard (for a long time) to create layouts that scale well (across devices, div + […]
ssh can be regarded as “critical core infrastructure” time spend on it’s security is time well spend time + money well invested: https://www.openssh.com https://github.com/openssh current manpage: ssh.man.txt WARNING: this howto guide IS MOST LIKELY INCOMPLETE! WARNING! WHEN RUNNING THE SCRIPT: […]
this might be the ULTIMATE motivation to make companies (!) (finally?) migrate to GNU Linux? No? ‘The company also plans to publish further findings on the activities in Microsoft’s network in the future. Why the company does not manage to […]
#!WARNING! THIS WAS TESTED FOR OLDER RHEL7 AND CENTOS! # manual editing vim /var/lib/pgsql/12/data/postgresql.conf; # postgres main config file # semi-automatic editing via sed # optional: postgres: enable detailed logging POSTGRES_MAIN_CONFIG=”/var/lib/pgsql/12/data/postgresql.conf” sed -i ‘s/#log_statement = [^”]*/log_statement = ‘all’/g’ $POSTGRES_MAIN_CONFIG sed […]
pluma text editor shortcuts and hotkeys pluma is an excellent basic plain text editor (basically the notepad++ for GNU Linux :D) the ONLY thing that pluma does not do as well as vim: opening BIG files beyond 10MBytes… some shortcuts […]
network mac’s are used to uniquely identify systems and users and thus a privacy problem so mac randomization should be enabled per default on every distribution for every wifi network card (maybe interactively during setup ask the user to enable […]
git is a complex source code repository management system that completely relies on file transactions this means: there is no running service or open port (except if git-over-ssh is used, all it needs for network multi developer cooperation is a […]
Just as php python is a widely used easy to read and write on-the-fly interpreted language. performance? performance in the sense of data throughput or amount of prime numbers per second but it is also: how long will a user […]
has the system been shutdown properly “gracefully” or has it crashed? it does not have to be a software or hardware problem it could also be: insufficient shielding from terrestrial microwaves satellites lightning strike near by? or extra-terrestrial (the cosmos […]
sometimes it is required to generate a lot of test data vim /scripts/copy_x_times.sh #!/bin/bash # copy given file x times # usage: copy filename.jpg a 100 times # ./copy_x_times.sh filename.jpg 100 for ((i=1; i<=$2; i++)) do cp -v “$1” “$1-$i”; […]
out of space? howto upgrade and grow lvm2 luks encrypted root home harddisk the process is like this: lvm2 can use a new empty partition or even harddisk to extend an existing logical volume group and logical volumes inside those […]
ok this picture is a easy to spot fake, because of it’s quality, but the quality of fakes (pictures AND videos) is getting better and better and better: This is scary shit, because what this means: NO-ONE can effectively believe […]
it is a wee bit strange, a lot of stuff is written to log files, often too much like: ==> /var/log/syslog <== 2024-03-04T17:33:03.463570+01:00 hostname_of_server NetworkManager[1113] <warn> [1709569983.4627] platform-linux: do-add-ip6-address[3] fe80::b0f4:2e3e:d41d:36ce]: failure 95 (Operation not supported) <- NetworkManager just can’t accept […]
mate desktop is leightweight easy to use (“start” menu is top left and hopefully will FOREVER stay there) consistent simplified design hostnamectl; # tested on Static hostname: debian12 Operating System: Debian GNU/Linux 12 (bookworm) Kernel: Linux 6.1.0-18-amd64 Architecture: x86-64 su […]
this blog does not get tired of testing Android ROMS that enhance privacy 🙂 (actually it would be nice, if software support for those devices is at least 10 years X-D because it is a constant tiresome race) Yes it […]
in other words: how to print-output a lot of <html> special characters inline from a python script, that is run by apache2 webserver. how hard can it be right? configure apache2 (on CentOS7, RHEL7 it is called httpd) to recognize and […]
variant1: the most minimalist approach works but imho it is very primitive 🙂 (but it works) variant2: a wee bit better let’s go hostnamectl; # tested with Virtualization: kvm Operating System: Ubuntu 22.04.4 LTS Kernel: Linux 5.15.0-94-generic Architecture: x86-64 # […]
This is EXACTLY how “Yellow” Journalism works. “HEADLINE SAYS A” “text very small says B” (most people only read A and continue whatever they have been doing, which might be exploited by Journalists that get […]
it works now! 😀 THE PENGUIN CAN NOW MEASSURE THE TEMPERATURE! thanks ALL INVOLVED 😀 TIP: it actually has 2x temp sensors 1x meassures inside usb stick 1x meassures with the metal-probe at the end of the cable WARNING! […]
no not abandoning Debian 😀 (which is the BASIS for Ubuntu and imho) about: eclipse: is a “MOTHERSHIP” of an IDE software. it seems to grow every year, making this already very complex java IBM based software EVEN BIGGER. (which […]
most recent version 2024-03 is https://www.python.org/downloads/ python 3.12 First released: 2023-10-02 End of support: 2028-10 Release schedule: PEP 693 python for automation: So for performance critical tasks python is actual just the “controller” that then calls C or or C++ or […]
BIT FLIPS are a COMMON thing in the universe 😀 so EEC RAM ACTUALLY MAKES SENSE 😀 “Studies by IBM in the 1990s suggest that computers typically experience about one cosmic-ray-induced error per 256 megabytes of RAM per month”[15] As […]
scientists predict human leven AI by 2047 so DON’T HOLD THE BREATH WHILE UNDOUBTATLY MACHINES ARE VERY FAST AT CALCULATING STUFF How many operations per second ((F)OPS) a human brain can do is up to debate + ongoing research, it […]
ssh next to https (TLS/SSL) is probably THE most essential building block of secure (unhacked) open source networked computing. CVE-2023-48795 is a (wo)man-in-the-middle-attack, so an attacker would have to sit on the same network (LAN) or somewhere between ssh client […]
some devs make jokes about PHP – but this – only PHP + XDEBUG can do! setup a test-server with test requests and data and start debug session with the REAL requests that start a debug-session in eclipse to look […]
Starlink is a cost effective internet-via-satellite provider run by SpaceX at 2024-01 currently (2014-01) counts over x > 2 mio customers SpaceX plans to put 12.000 to 42.000 satellites into Low Earth Orbit (LEO). currently (2024-01) 5289 satellites (Wiki) in […]
software minimalism & audio interface minimalism: to make management of audio interfaces easier, disable those the user does not use a lot of monitors are hdmi connected that can also transport audio signal but a lot of the build-in speakers […]
might be minor change to some but it is actually pretty interesting to see that: what is the state of resources? from the left to right: CPU usage, RAM usage, NETWORK usage, SWAP usage, disk usage GNU Linux is not […]
vendors & users can do: keep firmware and apps as up to date as possible this requires that vendors also publish patches for critical security problems for old devices (!!! AVM Fritz does it, Samsung & Apple can too!) install […]