Category: complicado

second take on trying to get a xmpp server (OpenFire, Java) client (Pidgin, C (C#, Perl, Python, Tcl are used for plugins)) up and running. at least this time with partial luck (was able to login via pidgin) but it […]

setup LAMP Linux Apache2 MariaDB PHP7.3 su – root; # become root apt update; # update system to latest apt upgrade; # database first apt install mariadb-server mariadb-client # set root pwd for database (can be root on dev test […]

As with all hot debated topics: Linus Torvald’s “show me the source” in this case, the source of one’s informations (always give the source!) is IMPORTANT for the information’s credibility. It is absolutely vital in science to give all sources […]

# 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 […]

short version: + D1 Masten nicht überbucht/gute Netzqualität bei Nutzung von LTE (muss Handy können, kostet 5€ extra d.h. für 25€ monatlich (Stand: 2020-01) kann man dann tatsächlich sein Handy auch nutzen (falls dieses kein LTE kann… sollte man das […]

just reinstalled (of course with LVM + encrypted partition) the giada f300 (very fine machine unfortunately “they” stopped building it). screw Realtek, what one wants is should work out of the box with recent Linux kernels on Open Source drivers […]

bc is a nice calculator that one can use under linux terminal. a good exercise: count from 0 to 255 and convert it to binary # install # debian/ubuntu apt install bc # fedora/redhat/centos yum install bc # run bc […]

Why is quantum computing important: optimization Update: Google claims to have reached quantum supremacy The tech giant unveiled its x-quantum computer chip Bristlecone in March 2018 (src: cnet) original nasa paper: https://drive.google.com/file/d/19lv8p1fB47z1pEZVlfDXhop082Lc-kdD/view book: https://deepai.org/machine-learning/researcher/eleanor-g-rieffel https://www.amazon.com/Quantum-Computing-Introduction-Engineering-Computation/dp/0262015064 Scott’s Supreme Quantum Supremacy FAQ! […]

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 […]

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: Article13 for North Stream 2 pipeline between Germany and Russia Mrs Reda (one of the last honest politicians out there, used to be in Pirate Party but now even advises to vote against it, because also in the Pirate […]

Der Tariff-Jungle der DHL ist NICHT MEHR ÜBERSCHAUBAR. Ich war heute mit 4x Paketen in der Filiale, zwei davon seien FALSCH frankiert gewesen, ich musste bei einem Paket 2€ nachzahlen, d.h. 7€ für ein Paket mit Sendungsverfolgung. Das andere sei […]

We all want RELIABLE technology to serve mankind – not pollute the planet and the oceans. For this to play out right – it is important to ONLY buy HIQH QUALITY products – that are hopefully manufacturerd IN YOUR COUNTRY […]

“Thinking is hard work and not worth the effort” (The Love Police) Ever wondered why WhatsApp is for free? It is a self-surveillance tool. Phones with closed-source wifi drivers are cheap. Because to know the last detail about you – […]

“You will constantly have to fight for even the most basic of rights – and build your own infrastructure – or your government will spy on you and lobbyists try to take away your freedoms.” Watch this video and this: […]

TOS-based systems (Atari ST) used a row of bombs to indicate a critical system error. Number of bombs displayed revealed information about the error. The error (also called an exception) is reported by the Motorola 68000 microprocessor. The very first […]

Updates on the topic: https://relax-and-recover.org/ https://dwaves.de/2019/06/30/linux-bash-rsync-how-to-backup-over-internet-script-v1/ backups of a life system under linux – many answers and almost a science of itself. i guess you will have to try a handful of them out to see if they work for […]

while test running debian linux journald uses almost 100% cpu… “The daemon will implicitly collect numerous metadata fields for each log messages in a secure and unfakeable way. See systemd.journal-fields(7) for more information about the collected metadata.” https://www.freedesktop.org/software/systemd/man/systemd-journald.service.html systemd: Using […]

if you are using an MBR partition table then it’s stored in the drive MBR, if you are using GPT with BIOS then it’s stored in the drive’s protected MBR if you are using GPT with UEFI then it’s stored […]