Category: OperatingSystems / OS

Monolithic Hybrid Micro Nano Kernel OS and examples

Why Hybrid? “Most hybrid kernels start as monolithic kernels and begin moving components into user land, primarily as security to support 3rd-party components and drivers which may be malicious or buggy. An example of a hybrid kernel design may keep […]

CNBC documentary about Open Source

what do you think about the CNBC documentary? 2012: Aalto Talk with Linus Torvalds: 1,5 Million Views! contains the famous “Fuck You NVIDIA” 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

RISC-V hardware would definitely recommend to support this project.: if one has little money: ($60) with massive amounts of money… ($1000) + ($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

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 […]


“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

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 […]

The Y2038 Problem – cars and embedded systems

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

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.” Update: 2019.10 Zombieload is back. […]

Yum cheat sheed – the future of Yum is Dnf

update: 2021-1 yum -> dnf hostnamectl; # tested on Virtualization: kvm Operating System: CentOS Linux 8 CPE OS Name: cpe:/o:centos:centos:8 Kernel: Linux 5.4.11 Architecture: x86-64 ll /usr/bin/yum -> dnf-3 all those yum commands still work with dnf (nice work!) DNF […]

The Unix philosophy – simple and beautiful

src: 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 […]


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 […]