Author: Rahul

Hey there! If you’ve ever heard about databases and wondered what the deal is with NewSQL, you’re in the right place. I’m going to break it down for you, like we’re chatting over coffee. NewSQL is a cool new type of database that tries to take the best parts of traditional SQL databases (like MySQL) and NoSQL databases (like MongoDB) and mash them together. Let’s dive in and see what it’s all about. What’s NewSQL Anyway? Imagine you’re running an online store. You need a database to keep track of customers, orders, and products. A traditional SQL database, like MySQL…

Terraform interviews often include scenario-based questions to test how you solve real-world problems. These questions check your practical knowledge and decision-making. This article covers 10 common scenarios with answers written like you’d say them in an interview. Let’s jump in! 1. Your team accidentally deleted the Terraform state file. What do you do? Candidate Reply: Losing the state file is bad because Terraform won’t know what resources it’s managing. First, I’d check if we have a backup, like in an S3 bucket if we’re using a remote backend. If there’s no backup, I’d use `terraform import` to rebuild the state…

If you’re aiming for a senior DevOps or cloud architect role, you’ll likely face some tough Terraform questions. This article covers 25 advanced questions with answers written like you’d explain them in an interview. I’ve added code snippets and examples where they help. Let’s get started! 1. How do you secure a Terraform state file? Candidate Reply: Securing the state file is super important because it contains sensitive info like resource IDs or passwords. I use a remote backend like AWS S3 with encryption enabled and lock it with DynamoDB to prevent conflicts. I also restrict access using IAM policies…

Terraform is a super popular tool for managing infrastructure as code, and if you’re starting out, you might get asked some basic questions in interviews. Don’t worry! This article covers 25 common Terraform questions for beginners, with answers written like how you’d actually reply in an interview. Let’s dive in! 1. What is Terraform? Candidate Reply: Terraform is a tool by HashiCorp that lets you create and manage infrastructure using code. Instead of manually setting up servers or databases, you write code to describe what you need, and Terraform makes it happen on cloud platforms like AWS, Azure, or Google…

What’s an IP Address? Imagine the internet is like a huge city, and every device—your phone, laptop, or even your smart TV—is like a house in that city. Now, just like every house has a unique address (like “123, Main Road, Delhi”), every device on the internet has a unique address too. This address is called an IP address. IP stands for Internet Protocol. It’s like a rulebook that helps devices talk to each other. The IP address is a special number that identifies your device so it can send and receive data—like emails, videos, or WhatsApp messages. For example,…

Debian is a popular Linux system loved by many for being stable, free, and flexible. The next big release, Debian 13, codenamed “Trixie”, is coming in 2025, and it’s packed with exciting updates. Let’s dive into what makes Trixie special, from new features to better hardware support, all explained in simple words. A Quick Look at Debian 13 Debian 13 “Trixie” follows Debian 12 “Bookworm” and continues the tradition of using names from the Toy Story movies. Trixie is the testing version right now, which means it’s still being worked on, but it’s already showing some cool changes. The final…

Hey buddy! So, you’re working with a team on a project, and Git is giving you headaches, right? I’ve been there—merging code, fixing conflicts, wondering who broke the build. It’s like a traffic jam in Bangalore! But don’t worry, I’ll walk you through a simple Git workflow that keeps things smooth for everyone. Let’s make it easy, step by step, so we all stay happy and the code stays clean. Why Bother with a Workflow? Without a plan, Git turns into chaos—everyone pushing to main, overwriting each other’s work, and then shouting in the group chat. A good workflow is…

Hi friends! If you’re using Docker, you know it’s like a magic box for your app—it runs the same everywhere, from your laptop to a big server. But the file that makes this box, the Dockerfile, needs some care. If it’s not done right, your app can become slow, heavy, or even unsafe when real users start using it in production. Don’t worry, I’ll show you how to make it small, fast, and secure in simple steps. Plus, I’ll give an example you can try! Why Bother Optimizing? In production, your app should be quick to start, use less space,…

If you’ve been in the tech world long enough, you’ve probably noticed how security keeps creeping up the priority list. It’s no longer just an afterthought—it’s a core part of building software. That’s where DevSecOps comes in, blending security into the fast-paced DevOps cycle. And if you’re looking for a tool to make that happen without breaking a sweat, let me introduce you to Trivy. It’s an open-source security scanner that’s simple to use, lightning-fast, and quickly becoming a must-have for teams who want to stay ahead of vulnerabilities. Ready to dive in? Let’s get started. Why Trivy Matters for…

Kubernetes (often abbreviated as K8s) is an open-source platform designed to automate the deployment, management, and scaling of containerized applications. In simpler terms, it lets you group Linux container hosts into clusters and takes the hassle out of managing them. In this tutorial, I’ll walk you through setting up a multi-node Kubernetes cluster using multiple Ubuntu virtual machines on AWS. Let’s dive in! Prerequisites For this setup, I’ve launched three EC2 instances in an AWS account, all running Ubuntu and using the t3.medium instance type. Here’s the plan: One instance will serve as the Kubernetes control plane. The other two…