TKTrinaya Kantevariintrinayakantevari.hashnode.devSet Up a k3s Kubernetes ClusterWhy k3s? K3s is a fully compliant Lightweight Kubernetes distribution.Easy to install, half the memory, all in a single binary of less than 100 MB. Great for Homelab. Step 1: Install prerequisites U11h ago·2 min read
DKDRAVID KUMARindravidkumar.hashnode.devFrom Brute Force to Banned: Swinging the DevOps Thor Hammer with Fail2Ban[IMAGE: A powerful, stylized digital hammer striking an incoming 'attack' data packet, creating a shield barrier] Provisioning a cloud server for the first time is a rite of passage. If you followed m1h ago·6 min read
AKAryan Kumarinblog-aryan-dev.hashnode.devUnderstanding Variables and Data Types in JavaScriptHere is your beginner-friendly guide to the building blocks of JavaScript. In this blog discuss about : What variables are and why they are needed How to declare variables using var, let, and const 58m ago·4 min read
VVVaibhav Vermainglue-eng.hashnode.devWhy Your Engineering Team Needs Codebase Intelligence (Not Just More Dashboards)Every engineering leader I talk to has the same complaint: "We have 15 dashboards and still can't answer basic questions about our codebase." Sound familiar? You've got DORA metrics, Jira velocity charts, GitHub insights, SonarQube reports — and yet ...1h ago·4 min read
FFurozqinorvoai.hashnode.devI Built a Tool That Warns You 60 Seconds Before Your Site Goes DownI kept getting "your site is down" emails — from users, not my monitoring tools. By the time I got the alert, the damage was done. That's when I realized: traditional monitoring is reactive. It tells 12h ago·2 min read
AIAce Interviewsinaceinterviews.hashnode.devWhy LeetCode Habits Get Senior Engineers Rejected in Google SRE Coding RoundsIf you are preparing for a Google Site Reliability Engineering (SRE) loop, I can almost guarantee you are studying the wrong way for the coding round. I recently reviewed a mock interview with a Senio13m ago·6 min read
HYHarsh Yadavinlinuxintroduction.hashnode.devWhat Linux Really Is — The Kernel Explained for DevOps EngineersDay 1. No commands spam. No “let’s install 20 tools.” Just foundations. Before touching advanced DevOps tools like Docker, Kubernetes, or CI/CD pipelines, I forced myself to answer one uncomfortable q17h ago·5 min read
KTKalyan Tamarapalliinktamarapalli.hashnode.devMerkle Manifests: Why Build Servers Lie (How to Cryptographically Prove It)Verifying CI/CD Artifacts Against Human-Signed Source Trees Introduction: The Build Server Is Not a Source of Truth Most CI/CD security models assume the build server is honest. This is a dangerous assumption. SolarWinds demonstrated that a build sy...1h ago·4 min read
LBLokesh Babu Nalluriincode-to-cloud.hashnode.devDesigning Multi-Environment Infrastructure (Dev / Staging / Production)In real-world product companies, infrastructure is never deployed directly to production. Every change flows through structured environments: Development → Staging → Production If your infrastructure 3h ago·5 min read
RRRahul Rajesh Sonarinrahul-sonar.hashnode.devCampus Cloudcraft: Build a College Website on AWS Using IaCDescription : This project is a hands-on guide to building and deploying a complete college website infrastructure on AWS using CloudFormation and EC2. Instead of manually configuring resources throug21h ago·34 min read
