Ubuntu Server Hardening — Part 1: The Essentials
The three measures every public Ubuntu server needs within the first hour: a default-deny firewall with UFW, brute-force protection with Fail2ban, and automatic security updates.
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Tutorial
7 articles
Windows 11 Still Defaults to PowerShell 5.1 — And Why That's a Problem
Windows 11 ships with PowerShell 5.1 as the default shell — a version from 2016 based on .NET Framework. Learn why this matters, how to upgrade to PowerShell 7, and how to make it your permanent default.
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How to add a global .gitignore
Stop committing .DS_Store, Thumbs.db, and IDE folders into every project. Learn how to configure a global .gitignore that applies across all your repositories.
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How to Secure SSH Access on Linux (Ubuntu)
Harden your Ubuntu server's SSH access step by step: create and deploy an SSH key pair, add a sudo user, disable password authentication, and lock out root.
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Conway's Game of Life in Go: A Step-by-Step Guide
Implement Conway's Game of Life in Go from scratch — grid logic, toroidal wrapping, terminal rendering, and a working main loop with two classic patterns.
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How to check if a binary is statically or dynamically linked
Learn how to differentiate between static and dynamic linking in Go and use terminal tools to verify your application's portability.
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Introduction to Hugo #1
Get started with Hugo, the world's fastest framework for building websites. Learn installation, theme creation, and deployment basics.
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