The VPSNode Blog

Can We Actually Trust Google?

Can We Actually Trust Google?

For a good few years, it seemed that Google lived up to its old motto. Don’t be evil. It also seems that do no wrong in terms of product superiority. Google built its reputation as an ethical company that honestly has outperformed competitors. But is that reputation still deserved

Understanding Linux's True and False Commands

Understanding Linux's True and False Commands

True and False are the most common concepts in all forms of computing. They’re so highly critical to Boolean logic, but did you know that true and false are also even commands on Linux? There is a simple explanation. This is that the true command generates an exit code

How to Make a Bitcoin Transaction in Go

How to Make a Bitcoin Transaction in Go

Bitcoin is all the rage in recent years. So does Golang - a programming language developed by Google. Today I am going to instruct you how to make a simple Bitcoin transaction with Golang. Hopefully, you will be able to transfer Bitcoin without using any DApps after this tutorial. The

Intuitive method of finding the inverse of a matrix

Intuitive method of finding the inverse of a matrix

Finding a matrix inverse is very useful not only in Computer science but when solving equations by hand. However, using the formula Adj(A) / det(A) can be quite tedious, especially if you don't know how exactly it works. In this article I will show how to intuitively and efficiently

Getting started with Embedded C

Getting started with Embedded C

The Goal By the end of this tutorial, you will be able to compile a binary written for the avr instruction set targeting the AtMega328P microcontroller on an Arduino Nano or Arduino Uno R3 form factor. Needed Documentation * Arduino Nano PCB design * Atmega328P datasheet Materials used * Arduino Nano * Arduino Uno

Package Source (pkgsrc): An Introduction

Package Source (pkgsrc): An Introduction

Introduction to the BSD WorldAlmost everyone in the tech sector is familiar with Linux in some capacity. Their use of it may be on the server as a sysadmin, Android phone user, desktop experience, deploying a micro-service via the cloud or in the embedded space. In some way, shape, or

Introduction to the BSD World

Introduction to the BSD World

Almost everyone in the tech sector is familiar with Linux in some capacity. Their use of it may be on the server as a sysadmin, Android phone user, desktop experience, deploying a micro-service via the cloud or in the embedded space. In some way, shape, or form, everyone in the

Hacktivism: Social Justice by Data Leaks and Defacements

Hacktivism: Social Justice by Data Leaks and Defacements

Around the end of February, a hacktivist that calls himself JaXpArO and My Little Anonymous Revival Project breached the far-right social media platform named Gab. They managed to gain seventy gigabytes of data from the backend databases. The data contained user profiles, private posts, chat messages, and more – a lot

Implementing RSA in Python from Scratch (Part 3)

Implementing RSA in Python from Scratch (Part 3)

Side-channel attacks The first 2 articles focused mainly on the idea and implementation of RSA. As such they left out a relevant topic in modern encryption. Side-channel attacks take advantage of data we'd usually brush off as gibberish, such as hardware sounds, electromagnetic waves and timing. Timing attacks are most

The PHP Community and Development Sucks

Web Development

The PHP Community and Development Sucks

The issues which I have had with the PHP for the last ten years is the community, tutorials and/or guides, and the development of web applications. Yet at the same time, the core of PHP is the amazing people which I have met so far with talent – they have

Implementing RSA in Python from Scratch (Part 2)

Implementing RSA in Python from Scratch (Part 2)

Implementing RSA in Python from ScratchI’m sure many programmers, particularly web developers have heard of the RSA cryptography system. RSA is an asymmetric cryptography system, meaning that one key is used for encryption and the other for decryption. I’ve seen a lot of articles explaining the general principles

Implementing RSA in Python from Scratch

Implementing RSA in Python from Scratch

I'm sure many programmers, particularly web developers have heard of the RSA cryptography system. RSA is an asymmetric cryptography system, meaning that one key is used for encryption and the other for decryption. I've seen a lot of articles explaining the general principles of asymmetric cryptography, but I have not

Unhackable and Bug Free Coding is a Marketing Lie

Software Development

Unhackable and Bug Free Coding is a Marketing Lie

One thing that I have learned in my life is that everyone lies – to an extent. That even means people can make up little white lies to protect peoples' feelings or hide the absolute truth. Some of the lies can be acts of commission – a deliberate statement of untruth – whereas