@kartikey-narayan

TCP vs UDP Explained: When to Use What and How HTTP Fits In

Jan 24 · 5 min read · Think of a situation where two people are talking on the phone line. One person speaks, but the other does not reply. Some words get cut off, some sentences repeat, noise in between, and some never arrive at all. After sometime, the connection breaks...

How DNS Resolution Works: From Domain Name to IP Address

Jan 24 · 6 min read · Think about this for a moment. You open a browser and visit a website like kartikeynarayan.in on your mobile phone, laptop, or any other device. The website loads instantly, without you needing to think about what happens behind the scenes. But have ...

DNS Record Types Explained: A Simple Guide for Beginners

Jan 24 · 5 min read · You type a website address into your browser and press Enter. Within seconds, the page loads, no questions asked. At that moment, a natural question arises in the mind of the end user: “How does a browser know where a website lives?” More questions...

From "Am I Audible?" to "Bye": How TCP Communicates Reliably

Jan 21 · 5 min read · Think of a situation where two people are talking on the phone line. One person speaks, but the other does not reply. Some words get cut off, some sentences repeat, noise in between, and some never arrive at all. After sometime, the connection breaks...

The Pendrive Problem

Jan 12 · 3 min read · Before Kartikey understood Git, repositories and commits, there was a time when developers shared code in much simpler ways. This chapter goes back to that time to understand why version control wasn’t a luxury, but a necessity. “This is the story o...