Sarah Mitchell
Contact: [email protected]
Areas of Expertise
- Cloud & DevOps
- Systems & Infrastructure
- Architecture & Patterns
- Performance & Optimization
Articles by Sarah Mitchell
How Does Docker Containerization Work?
Docker revolutionized application deployment through containerization. Learn how Docker creates isolated environments using namespaces, cgroups, and union filesystems to package applications with their dependencies.
eBPF: Programmable Linux Kernel Without Kernel Modules
eBPF enables safe, high-performance custom code in the Linux kernel without modules. Discover how it transforms observability, security, and networking.
Advent of Code 2025: Sharpen Your Coding Skills
The festive season traditionally brings joy, reflection, and for developers worldwide, a unique challenge: Advent of Code (AoC).
Snapdragon 8 Elite Gen 5: Day-One Linux Upstream
The landscape of mobile computing is constantly evolving, driven by powerful System-on-Chips (SoCs) that pack incredible performance into tiny footprints.
Java Decompiler: Unlocking Bytecode for Deeper Insights
In the expansive world of Java development, understanding the inner workings of compiled code is often as crucial as writing it.
Federated Social Media: The Decentralized Web Guide
The digital landscape is at a crossroads. For years, major social media platforms have dominated online interaction, offering convenience at the cost of...
Pine64: Empowering Open-Source Hardware Innovation
In an era dominated by proprietary technologies, a quiet revolution has been brewing, championed by organizations like Pine64.
µcad: Declarative Code-Driven CAD with Rust
The world of computer-aided design (CAD) has long been dominated by graphical user interfaces (GUIs), offering intuitive drag-and-drop experiences for...
Understanding GPS: A Deep Dive into Satellite Navigation
The Global Positioning System (GPS) has become an indispensable technology, seamlessly woven into the fabric of modern life.
NTP: The Unsung Hero of Internet Time Synchronization
The internet, a vast tapestry of interconnected systems, relies on an invisible yet foundational component to function coherently: accurate time.
Mullvad's DAITA: Shielding Against AI Traffic Analysis
In an era of pervasive digital surveillance, where every online action can be meticulously tracked and analyzed, the need for robust privacy tools has never...
WireGuard Explained: A Deep Dive into Modern VPN Technology
Virtual Private Networks (VPNs) have become an indispensable tool for securing digital communications, whether for remote work, protecting sensitive data,...
Secure Messaging: Top Apps for Privacy
In an increasingly interconnected world, digital privacy has become a paramount concern. Every message sent, every call made, contributes to a vast...
Snapchat Privacy: Deconstructing Its Ephemeral Promises
Introduction Snapchat, since its inception, has captivated millions with its promise of ephemeral messaging—photos and videos that disappear after viewing,...
Load Balancers Explained: How They Enhance Scalability
Modern web applications face an ever-growing demand for high availability, performance, and scalability. As user bases expand and traffic spikes, a single...
Why Competing with Google Search is So Hard
The digital age is defined by information, and the gateway to that information for billions worldwide is Google Search.
The Curious History of Fonts: From Stone to Screen
The Curious History of Fonts: From Stone to Screen Fonts are more than just aesthetic choices; they are the silent architects of communication, shaping how...
RPKI: Preventing BGP Hijacks and Securing Internet Routing
The internet, a global network of interconnected systems, relies on a complex system of protocols to route traffic efficiently.
C's Enduring Reign: Why It Stays Top Low-Level Language
The digital world is built on layers of abstraction, yet at its very foundation lies a language designed for direct hardware interaction: C.
AMP: Accelerating Mobile Pages and Google's Vision
The modern web is defined by speed. In an era where information is consumed at an unprecedented pace, a slow-loading webpage can be the difference between...
Strategies for Safe LLM Responses
Large Language Models (LLMs) have revolutionized how we interact with technology, enabling applications from advanced chatbots to sophisticated content...
Olmo 3: The Full Model Flow to Lead Open-Source AI
The landscape of artificial intelligence is rapidly evolving, with Large Language Models (LLMs) at the forefront of innovation.
Proxmox 9.1: Natively Run Docker OCI Containers
Proxmox Virtual Environment (VE) has long been a cornerstone for virtualization, offering robust open-source solutions for managing virtual machines (VMs)...
Cloud Overreliance: Risks & Multi-Cloud Strategy
The rapid adoption of cloud computing has reshaped the technological landscape, offering unparalleled scalability, flexibility, and cost efficiency.
Securing DNS: A Deep Dive into DNSSEC
The Domain Name System (DNS) is often called the internet's phonebook, translating human-readable domain names like "example.com" into machine-readable IP...
CrUX Explained: Real User Performance Metrics
Hey there, fellow web enthusiasts. Ever wondered if your website truly shines for every user, regardless of their device or network.
Nix & Kubernetes: Reproducible Containers
Hey there, fellow engineers. Ever found yourself wrestling with inconsistent builds, "it works on my machine" syndrome, or just plain old dependency hell.
Archimedes: Python for Control System Hardware Deployment
The landscape of hardware engineering is rapidly evolving, demanding more agile and efficient development workflows, particularly for complex control syst...
Adblock DNS: Options and Setup
Adblock DNS provides a powerful, network-wide solution for filtering unwanted content, advertisements, and tracking scripts before they even reach your devi...
Brave vs Chrome: Privacy Deep Dive
The digital landscape is increasingly defined by data, and with it, a growing concern for online privacy. As users navigate the web, their choice of...
Website SEO Optimization: Technical Best Practices
In the dynamic landscape of the internet, a technically sound website is only truly effective if it can be discovered by its target audience.
Spellcheck Speed: Algorithms & Techniques
The seemingly instantaneous correction of a typo by a spellchecker has become such an integral part of our digital experience that we rarely pause to...
Windows 10 ESU: Free Support Explained
The end of mainstream support for Windows 10 on October 14, 2025, marks a critical juncture for organizations and individual users alike.
Advanced DNS Debugging Techniques
The Domain Name System (DNS) is the foundational layer of virtually all network communication, translating human-readable domain names into machine-readable...
SQL's Enduring Power in Modern Data Systems
The data landscape is in a perpetual state of flux. New technologies emerge, paradigms shift, and the sheer volume and velocity of data continue to explode.
Best Vulnerability Scanners for 2025
In the rapidly evolving digital landscape, where cyber threats grow more sophisticated daily, vulnerability scanning remains a cornerstone of any robust...
Moore's Law: Scaling Chips, Limits, and Future Tech
Moore's Law has been the bedrock of the digital revolution for over half a century, an observation that has profoundly shaped the technology landscape.
SLAAC vs DHCPv6: The IPv6 Address Management Choice
The internet's exponential growth has made IPv4 address exhaustion a pressing concern for decades. IPv6, with its vast 128-bit address space, offers the...
Penetration Testing Tools in Kali Linux
Explore the essential penetration testing tools in Kali Linux. Learn about reconnaissance, exploitation, and post-exploitation frameworks used by security professionals worldwide.
DaaS for SME: Options & Technical Deep Dive
The modern enterprise landscape is rapidly evolving, driven by the proliferation of remote work, the demand for flexible access, and the perennial challenge...
Cloudflare Registrar: The Technical Advantage
Domain registration, often perceived as a mere commodity, is a foundational element of any online presence. For technical professionals, however, choosing...
Claude, Gemini, ChatGPT: A Technical Comparison
The landscape of Large Language Models (LLMs) is evolving rapidly, with new advancements continuously pushing the boundaries of AI capabilities.
Cloudflare Workers: Serverless Web Application
Building modern web applications often involves navigating complex infrastructure, managing servers, and optimizing for global reach.
Effective LLM Prompting: Core Concepts
The advent of Large Language Models (LLMs) has revolutionized how we interact with artificial intelligence, offering unprecedented capabilities in...
HTTP/2 and HTTP/3 Implementation Guide
HTTP/2 and HTTP/3 represent significant evolutions in web protocols, offering substantial performance improvements over HTTP/1.1
Apache vs Nginx: Choosing the Right Webserver
Choosing between Apache and Nginx is one of the most important architectural decisions for web infrastructure. Both are powerful, mature web servers, but...
Redis Caching Strategies and Best Practices
Redis has become the de facto standard for in-memory data storage and caching in modern applications. Its versatility, speed, and rich data structures make...
Understanding and Implementing Linux Network Namespaces
Linux network namespaces are a fundamental kernel feature that enables network isolation, forming the backbone of modern containerization technologies
How to use Batfish
Batfish is an open-source network configuration analysis tool designed to answer complex questions about network behavior
How can you get started with Prowler?
Getting started with Prowler marks a pivotal step in enhancing your cloud security posture management (CSPM). As an open-source tool, Prowler empowers...
How to Deploy a React App to AWS S3 and CloudFront
Deploying a React application to AWS provides a scalable, cost-effective hosting solution with global content delivery. This guide walks you through...
Privilege Escalation in Penetration Testing
Privilege escalation is the process of exploiting vulnerabilities, misconfigurations, or design flaws to gain elevated access beyond what was initially granted
Essential Penetration Testing Tools
Every penetration tester needs a comprehensive toolkit to effectively assess security posture. This guide covers essential penetration testing tools across...
Distributed Systems and the CAP Theorem
Building distributed systems is one of the most challenging endeavors in software engineering. As applications scale to serve millions of users across the...
Complete Penetration Testing Methodology
Professional penetration testing requires more than technical skills—it demands a structured methodology that ensures comprehensive coverage, consiste
BGP (Border Gateway Protocol) Deep Dive
The Border Gateway Protocol (BGP) is the routing protocol that makes the Internet possible. As the glue that holds together thousands of autonomous networks,...