A stable one using Docker — Trying to install node.js and its utility npm in Ubuntu can be challenging. Naively installing through apt-get can lead to complex problems with no clear solution such as the “Missing required argument”: Yes, I am writing a full article just to install node.js. Not the first time I got such…

The difference between these three concepts — The order in the title is important. Indeed an application is composed of one or more processes. A process is composed of one or more threads. That said let’s dig a bit deeper and see how applications, processes, and threads are created? What is the relationship between applications, processes, and…

Linux: The different structures pointing to an open file — Yes, to access a file, the file system go through multiple structures. Among them, we find the three elements mentioned in the title. I use the word “element” here since the file descriptor is not a structure but merely a number identifying an open file. …

The KVM API Introduction In this article, we will go through the KVM (Kernel-based Virtual Machine) API. KVM is a Linux kernel subsystem that can be used to start a virtual machine that uses hardware virtualization technologies such as VT-x of Intel or AMD-V. …

Using the Command Line — This article shows how to configure Docker containers the easy (yet probably wrong) way. It is great for beginners to play around with Docker. The only knowledge you need is the Linux command line. No need to learn the Dockerfile script syntax. The Docker we configure is based on Ubuntu…

Setting SSH on a raspberry — In this simplified guide, we will see how to run Ubuntu on raspberry pi. What you need to follow in this guide are is a Raspberry Pi Kit composed of: i) A raspberry pi (obviously) ii) An SD card (Ideally 32 GB) iii) An SD card reader/writer iv) The power supply v) An Ethernet…

We are all going to be broke except… Disclaimer: This document is for educational purposes only and is not intended to constitute legal, tax, accounting, or investment advice. I am not a professional financial advisor, attorney, or account, nor am I holding myself out to be. Oh! these guys are…

Using a crypto based asset — Amazing right? What merchant will accept payment in gold (in Europe)? Although the method used is far from perfect: there are still many intermediaries for the transaction to go through. It is a huge step toward the day where we can buy with nearly no intermediary using crypto backed assets. …

I know, I did it again! Tried to make few bucks by mining Monero, one of the few ASIC-resistant cryptocurrencies. After all, why not, I had my boss borrowed computer and free electricity at my apartment; it’s included in the monthly rent. Cryptocurrencies are on the rise. And I am…