Category: OperatingSystems / OS

CNBC documentary about Open Source
01.01.2020

what do you think about the CNBC documentary? 2012: Aalto Talk with Linus Torvalds: 1,5 Million Views! contains the famous “Fuck You NVIDIA” https://www.youtube.com/watch?v=MShbP3OpASA Linus Torvalds writes software since his early childhood ages and just loves programming. Without this love […]

building a riscv pc – riscv fedora emulator in javascript in browser
08.10.2019

RISC-V hardware would definitely recommend to support this project.: if one has little money: https://www.crowdsupply.com/sifive/hifive1-rev-b ($60) with massive amounts of money… https://www.crowdsupply.com/sifive/hifive-unleashed ($1000) + https://www.crowdsupply.com/microsemi/hifive-unleashed-expansion-board ($2000) one can even build one’s own risc-v pc: (one can only hope that mass production […]

Cinnamon Desktop (Gnome3 fork) vs MATE Desktop (Gnome2) a review
06.08.2019

Cinnamon desktop developed by Developer(s) Linux Mint team! – is a beautiful desktop (default on Linux Mint) alternative to Gnome2 MATE. BUT: still prefer Gnome2 MATE (at least on GNU Debian Linux) because it is: minimalistic / very resource efficient […]

24.07.2019

“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. […]

ntpd – when fundamentals fail
06.07.2019

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 […]

The Y2038 Problem – cars and embedded systems
23.01.2019

in comparison to Y2K: “The issue became when it became 2000 because that would be stored as 00 in the program. This caused many to believe that say, bank software wouldn’t be able to get your money out because it […]

Spectre and Meltdown – Linus Torvalds infuriated by Intel insanity – Open CPU and rise of RISC? RISCV – hifive1
09.05.2018

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. […]

Yum cheat sheed – the future of Yum is Dnf
24.05.2017

What is yum? yum is used under CentOS7, Fedora, RedHat RHEL, Oracle). It’s written in python and it stands for “Yellowdog Updater, Modified”, as it was originally called “yup”, the package manager for Yellow Dog Linux. In addition to rpm […]

The Unix philosophy – simple and beautiful
02.05.2017

src: https://homepage.cs.uri.edu/~thenry/resources/unix_art/ch01s07.html The Unix philosophy emphasizes building simple, short, clear, modular, and extensible code that can be easily maintained and repurposed by developers other than its creators. The Unix philosophy favors composability as opposed to monolithic design. Later summarized by […]

14.10.2014

vim /etc/lightdm/lightdm.conf [SeatDefaults] #xserver-command=X #xserver-layout= #xserver-config= xserver-allow-tcp=false #xdmcp-manager= #xdmcp-port=177 #xdmcp-key= greeter-session=lightdm-greeter greeter-hide-users=true #greeter-allow-guest=true #greeter-show-manual-login=false #login with LXDE as default (default xSession) user-session=LXDE #allow-guest=true #guest-session=UNIMPLEMENTED session-wrapper=/etc/X11/Xsession #display-setup-script= #greeter-setup-script= #session-setup-script= #session-cleanup-script= #autologin-guest=false ###################### > CHANGE THIS LINE TO THE USER THAT SHOULD […]