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Common AWS Free Tier Mistakes Beginners Make Cloud

Common AWS Free Tier Mistakes Beginners Make

The AWS Free Tier is one of the best ways to start learning cloud infrastructure, but many beginners misunderstand how it actually works. A common misconception is that all AWS usage remains completely free under the Free Tier. In reality, AWS Free Tier has usage limits, service restrictions, and ti

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Day 1 — ইন্টারনেট আসলে কীভাবে কাজ করে Cloud

Day 1 — ইন্টারনেট আসলে কীভাবে কাজ করে

আকাশ নামের এক ছেলের কাছে একটা ফোন এলো। ওপাশ থেকে একজন খুব সিরিয়াস গলায় বলল, "আমাদের ব্যাংকের server maintain করা হচ্ছে। আপনার অ্যাকাউন্টে একটু সমস্যা হয়েছে। এখনই ঠিক না করলে অ্যাকাউন্ট freeze হয়ে যাবে।" আকাশ ঘাবড়ে গেল। "আপনাকে একটা OTP সেন্ড করেছি, জাস্ট ওটা বলেন। সব ঠিক হয়ে যাবে।" আকাশ কিছু না ভেব

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Keeping Claude Code sessions for your repository in one place DevOps

Keeping Claude Code sessions for your repository in one place

I keep my Claude Code sessions in Dropbox so that I can pick up a conversation on another Mac. That works, but it comes with an annoyance: Claude Code names each project folder after the whole working directory path, so the moment a path differs even slightly — a different machine layout, or a git w

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DDoS Protection & Rate Limiting Abuse Cases Backend

DDoS Protection & Rate Limiting Abuse Cases

One-liner: A DDoS (Distributed Denial of Service) attack overwhelms your system with fake traffic until real users can't get through. Defense is layered — no single solution works alone. ❓ Types of Attacks Type How Target Volumetric Flood bandwidth (Gbps UDP) Network layer Pro

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My First Python Project: Building a Student Performance Evaluator Backend

My First Python Project: Building a Student Performance Evaluator

I Built My First Python Student Evaluation Program — What Would You Improve? I’ve recently been learning Python, and I built a small student evaluation program as a practical exercise to apply the concepts I’ve learned so far. The program: Calculates the average of Mathematics, Physics, and Chem

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What I Wish I Knew Before Taking My First Freelance Client Frontend

What I Wish I Knew Before Taking My First Freelance Client

When I started freelancing, I thought the hard part would be the code. It wasn't. The hard part was everything around the code — scoping the work, setting expectations, and figuring out how to work with a client instead of just for one. Here are a few things I wish someone had told me earlier. A

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Catch Bad Validation Tags at Compile Time with checkerlint Open Source

Catch Bad Validation Tags at Compile Time with checkerlint

Struct tags are just strings — a typo'd checker name, a wrong-typed field, or a renamed cross-field target all compile fine and fail silently at runtime. checkerlint catches all three before you ship. Struct tags are string literals. The Go compiler checks that your struct compiles — it has no ide

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