GSGeorge Simsindowntherabithole.dev·16h ago · 7 min readMigrating A Critical Kubernetes Deployment From The Default Namespace Without Any DowntimeSomewhere in your cluster there's probably a deployment sitting in the default namespace that everyone knows shouldn't be there. Nobody put it there maliciously, it just happened, early on, before any00
GSGeorge Simsindowntherabithole.dev·1d ago · 9 min readHow DNS Really WorksYou've typed a URL into a browser more times than you can count. You've also, at some point, been the engineer paged because "DNS is broken", and if you're honest, you probably fixed it without fully 00
ASAditya Singhinadityaksi.hashnode.dev·1d ago · 7 min readWhat Happens When You Type Google.com in Your Browser?A simple thing that billions of people do every day: open a browser, enter the address google.com, and hit Enter. What happens after that? We usually don’t think about the complex yet simple technolog00
SNShashwat Naikinbooting-to-cloud.hashnode.dev·1d ago · 7 min readRoute 53 — DNS, Routing Policies & Hybrid DNSRoute 53 Route 53 is AWS's DNS service — it manages DNS names and domain registration. Core areas: hosted zones, record types, health checks, record TTL, routing policies, resolver endpoints, and hybr00
AGAlish GCinalishgc.hashnode.dev·4d ago · 4 min readBuilding a Mini CDN Simulator with Node.jsI wanted to understand how CDN actually works. Instead of just reading article after article, I decided to build small CDN simulator by myself, using Node.js and Express. It is not a real production C00
HHugoinhugovalters.hashnode.dev·6d ago · 4 min readDeploying Encrypted DNS Internally: DoH and DoT GuideI was on-call when it happened. 3 AM on a Tuesday, and every single production server in our us-east-1 region started resolving api.internal.example.com to a server in Belarus. Our recursive DNS resol00
DVDhiti Varmaindhitivarma.hashnode.dev·6d ago · 6 min readHTTP & HTTPS Explained: What Happens When You Visit a Website?Have you ever wondered what actually happens when you type www.google.com into your browser and press Enter? It may seem like a simple action that takes only a few milliseconds, but behind the scenes,10
SSunnyincybersecurity-learning.hashnode.dev·Jul 26 · 15 min readTryHackMe Introductory Networking Beginner-Friendly Learning GuideIntroduction I recently completed the Introductory Networking room on TryHackMe as part of my ongoing cybersecurity learning journey. Networking is one of the most important foundations of cybersecuri00
NSNisha Sardarinmsnisha.hashnode.dev·Jul 25 · 12 min readThe 'Phonebook' Analogy Lied to Me About DNSFor a long time, I took that explanation at face value. But when you start digging into what actually happens the moment you hit Enter in your browser, you realize the phonebook analogy isn’t just sim00
ASAsep Sayyadinasepsayyad007.hashnode.dev·Jul 24 · 2 min read10 Mistakes That Broke My Self-Hosted Server (And How I Fixed Them) | Docker, DNS & Linux GuideSelf-hosting is one of the best ways to learn Linux, Docker, networking, and security. But things do not always go as planned. Here are ten common mistakes that caused problems on my server and the si00
