Author: Rajesh Kumar

Modern companies generate huge amounts of data, yet many still struggle to use it in a practical and timely way. Centralized setups slow decisions and overload a single data team…

Hospitals depend on data the way hearts depend on rhythm. When that rhythm skips, outcomes suffer. Each dataset tells a patient’s story, and engineers shape how clearly that story is…

Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday Landmark, stock market…

✅ IIS-Only Performance Optimization Settings (Complete List) 1. Application Pool Settings (IIS Core) ✔ Start Mode ✔ Idle Time-out ✔ Worker Process Settings ✔ Recycling Settings 2. Site-Level Performance Settings…

0. First principle: measure before tuning Before touching settings: 1. OS & Hardware-level optimizations These are outside IIS but critical: 2. IIS application pool tuning 2.1 .NET CLR & pipeline…

ChatGPT Atlas 1. What is ChatGPT Atlas? ChatGPT Atlas is a new web browser developed by OpenAI that deeply integrates the ChatGPT conversational AI into the browser experience. ()Key facts:…

We’ll run RabbitMQ in Docker on an AWS EC2 instance, and use your Windows laptop for both the producer and consumer. I’ll walk you through: 1. Provision AWS EC2 for…

1. Big picture – why messaging in .NET? In modern .NET systems, you almost never want services talking to each other via direct HTTP calls only. Messaging brokers give you:…

Below is a complete, runnable .NET 8 demo where: You’ll be able to feel the difference. 1. Solution structure We’ll build this: Target: .NET 8.0 (works with future .NET 10+…

Here’s a single, self-contained console app that lets you experience the difference between: You’ll see timing + GC stats for both in the same run. 1️⃣ Full Code – Program.cs…

This is a perfect demo topic. Here’s a single, self-contained console app that lets you feel the difference between: You’ll get timing + GC stats for both in the same…

Here’s a single, self-contained console app you can run to see and feel the difference between: It includes: Works on any modern .NET (7/8/9/10+). 1️⃣ Full Code – Program.cs 2️⃣…

1. Install k6 on Windows You have a few options. I’ll show the two easiest: Option A – Using winget (recommended if available) Option B – Using Chocolatey If you’re…

📘 OWASP TOP 10 — COMPLETE IN-DEPTH GUIDE (BASIC → ADVANCED) Covers all 10 categories with: 🔥 A01 — BROKEN ACCESS CONTROL The #1 risk because access control failures appear…

OWASP Top 10:2025 – Release Candidate (RC1) is the new draft version of the OWASP Top 10, published on 6 November 2025 as the 8th edition of the project. It’s…

Location intelligence has become a core requirement for modern digital products. Whether you’re building a delivery tracker, a ride-hailing platform, an on-demand service app, or a real-estate search tool, accurate…

Instagram’s evolution from photo-sharing app to commerce powerhouse has made its data invaluable for businesses, marketers, and developers. Yet accessing this data has become increasingly complex as Meta tightens restrictions…

Think about how you talk to customers today. You may have a CRM, support tool, email system, chat widget, and a few internal dashboards. All of that sits nicely together…

An inefficient recruitment process brings hires who impact your performance. Thus, you want to use every strategy in the book to attract suitable candidates. Have you considered using recruitment data?…

Financial forecasting is crucial in today’s world because it enables informed and timely decision-making. An overview of key metrics is necessary for effective financial forecasting. Among the top features of…

🌍 The World of OWASP and the OWASP Top Ten A complete introductory tutorial 1. What is OWASP? OWASP stands for Open Worldwide Application Security Project.It’s a non-profit foundation whose…

Let’s build a single, clean demo project that you can use in training as: It will show: Let’s build a single, clean demo project that you can use in training…

While you don’t need a law degree to detect a bad contract, until recently, you did need $250–2000 — that’s how much lawyers typically charge to review a single contract…

The game industry never really slows down — but 2026 feels like a turning point. Players are harder to impress, expectations are sky-high, and technology is rewriting the rules faster…

1. What Are Benchmarks? A benchmark is a controlled, repeatable experiment that measures the performance characteristics of a piece of code. A good benchmark answers questions like: ✔ Benchmarking Focuses…

We can do this with one self-contained minimal API that has: 1️⃣ Create the project Replace all contents of Program.cs with this: This single file gives you: 2️⃣ Run the…

Yes, we can absolutely do this in one self-contained program 👍You’ll be able to: Below is a single Program.cs you can drop into a new console app. 1️⃣ Create the…

I’ll give you: 1️⃣ Create the demo app Now replace the entire Program.cs with this: This is self-sufficient: one file, no extra classes, no extra projects. 2️⃣ Run the app…