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@humanity2003

sourav halder

@humanity2003

Joined January 2026

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sourav halder's blogs

How DNS Records Route Internet Traffichow-dns-records-route-internet-traffic.hashnode.dev2 posts

What Your Browser Really Doeswhat-your-browser-really-does.hashnode.dev1 post

How TCP, UDP, and HTTP Work Togetherhow-tcp-udp-and-http-work-together.hashnode.dev1 post

Before Git, There Was Chaosbefore-git-there-was-chaos.hashnode.dev1 post

HTML Anatomy: Tags and Elementshtml-anatomy-tags-and-elements.hashnode.dev1 post

About

Nothing here yet.

Available for

Nothing here yet.

sourav halder's blogs

How DNS Records Route Internet Traffichow-dns-records-route-internet-traffic.hashnode.dev2 posts

What Your Browser Really Doeswhat-your-browser-really-does.hashnode.dev1 post

How TCP, UDP, and HTTP Work Togetherhow-tcp-udp-and-http-work-together.hashnode.dev1 post

Before Git, There Was Chaosbefore-git-there-was-chaos.hashnode.dev1 post

HTML Anatomy: Tags and Elementshtml-anatomy-tags-and-elements.hashnode.dev1 post

Articles Threads Comments

Recently published

mastering-the-tcp-3-way-handshake.hashnode.dev

TCP Working: 3-Way Handshake & Reliable

In the chaotic world of the internet, millions of "packets" of data are flying around every second. Without a strict set of rules, these packets would get lost, arrive out of order, or show up corrupted. Imagine trying to send a book to a friend by m...

Feb 15·8 min read

how-dns-records-route-internet-traffic.hashnode.dev

TCP Working: 3-Way Handshake & Reliable

In the chaotic world of the internet, millions of "packets" of data are flying around every second. Without a strict set of rules, these packets would get lost, arrive out of order, or show up corrupted. Imagine trying to send a book to a friend by m...

Feb 15·8 min read

under-the-hood-the-dns-resolution-flow.hashnode.dev

The Internet’s Phonebook: How DNS Resolution Works

When you type google.com into your browser, your computer doesn’t actually know where to go. Computers talk in IP addresses (like 142.250.190.46), but humans prefer names. DNS (Domain Name System) is the translation layer that maps these human-readab...

Feb 15·5 min read

mastering-curl-your-first-api-request.hashnode.dev

Getting Started with cURL: Your First Conversation with a Server

As a programmer, you spend a lot of time building applications that talk to other applications, or "servers." Think about it: when you log into a website, check your email, or refresh your social media feed, your device is constantly sending and rece...

Feb 15·4 min read

the-magic-inside-the-git-folder.hashnode.dev

Inside Git: How It Works and the Role of the .git Folder

You know how to use Git. You run git add, git commit, git push. The commands work, and that's enough... until something goes wrong. Then you're stuck, confused, blindly copying Stack Overflow commands and hoping for the best. Here's the thing: Git is...

Feb 15·10 min read