DNS Deep Dive: How the Internet Knows Where to Take You

3d ago · 12 min read · Ever wondered what really happens when you type a URL and hit Enter? Spoiler: it's not magic — it's DNS, and it's beautifully engineered. Table of Contents What Is DNS? Domain Registrars — Where I

From AMI to API: Provisioning MySQL, Node.js REST Backend & NGINX Reverse Proxy with Systemd on AWS RHEL 9 — A Complete 3-Tier DevOps Deployment Guide

The Complete Linux Administration & Vim Handbook: From Zero to DevOps Hero

May 30 · 28 min read · A structured, battle-tested reference for developers, sysadmins, and DevOps engineers covering Vim mastery, user management, permissions, networking, and system architecture. Table of Contents Vim

Linux Commands & Shell Scripting: A Complete Practical Guide for DevOps Engineers

May 29 · 12 min read · Whether you're just starting your DevOps journey or brushing up on your Linux fundamentals — this guide covers everything you need to navigate and operate in a Linux environment confidently. Table of

Understanding Regions, Availability Zones, Linux Architecture, Authentication, and Network Security from first principles

May 7 · 13 min read · Introduction Every production system running in the cloud today is built on a small set of foundational concepts — cloud topology, operating system internals, authentication protocols, and network sec