--- title: "Prashrey Pradeep (@prashrey) | Hashnode" description: "Builder, Engineer, Designer and ... Read the latest articles by Prashrey Pradeep on Hashnode." url: "https://hashnode.com/@prashrey" --- @prashrey # Prashrey Pradeep @prashrey · Joined January 2026 Builder, Engineer, Designer and ... ### [Your Files Never Really Die in Linux—Until They Do](https://prashrey.hashnode.dev/your-files-never-really-die-in-linux-until-they-do?utm_source=hashnode&utm_medium=feed) Deletion in Linux is a multi-stage lifecycle, not a single action. 4 min read · [prashrey.hashnode.dev](https://prashrey.hashnode.dev/your-files-never-really-die-in-linux-until-they-do?utm_source=hashnode&utm_medium=feed) [Apr 21](https://hashnode.com/posts/your-files-never-really-die-in-linux-until-they-do/69e7b385e436727814761481) ### [TCP: How the handshake establishes trust](https://prashrey.hashnode.dev/tcp-how-the-handshake-establishes-trust?utm_source=hashnode&utm_medium=feed) TCP Handshake and Reliable Communication (Explained Simply) When I first started learning networking, one question kept coming up in my head: What actually happens before two computers start talking? Because if you think about it, sending data with... 4 min read · [prashrey.hashnode.dev](https://prashrey.hashnode.dev/tcp-how-the-handshake-establishes-trust?utm_source=hashnode&utm_medium=feed) [Feb 15](https://hashnode.com/posts/tcp-how-the-handshake-establishes-trust/6992098f72bd92db44327720) ### [TCP vs UDP: When to Use What, and How TCP Relates to HTTP](https://prashrey.hashnode.dev/tcp-vs-udp-when-to-use-what-and-how-tcp-relates-to-http?utm_source=hashnode&utm_medium=feed) TCP, UDP and how they relate to HTTP When I first started learning networking, I kept mixing everything up. TCP.UDP.HTTP. They all sounded like “internet protocols.” But the internet isn’t random. It runs on layered rules. And at the core of sending ... 5 min read · [prashrey.hashnode.dev](https://prashrey.hashnode.dev/tcp-vs-udp-when-to-use-what-and-how-tcp-relates-to-http?utm_source=hashnode&utm_medium=feed) [Feb 15](https://hashnode.com/posts/tcp-vs-udp-when-to-use-what-and-how-tcp-relates-to-http/699200bd2a71de08d971299f) ### [What's the mystery behind the .git folder?](https://prashrey.hashnode.dev/whats-the-mystery-behind-the-git-folder?utm_source=hashnode&utm_medium=feed) How Git Actually Works (And What’s Inside the .git Folder) When I first started using Git, I treated it like a command machine. git addgit commitgit push It worked. I didn’t question it. But once I understood what’s inside the .git folder, Git stoppe... 5 min read · [prashrey.hashnode.dev](https://prashrey.hashnode.dev/whats-the-mystery-behind-the-git-folder?utm_source=hashnode&utm_medium=feed) [Feb 15](https://hashnode.com/posts/whats-the-mystery-behind-the-git-folder/6991f25e409b4bc653d415cf) ### [Understanding DNS Like a System Designer](https://prashrey.hashnode.dev/understanding-dns-like-a-system-designer?utm_source=hashnode&utm_medium=feed) What is DNS? 1️⃣ DNS is the Internet’s Phonebook DNS translates: google.com → 142.x.x.x Humans remember names.Machines route using IP addresses. But DNS is not a single phonebook. It’s a hierarchical, delegated, distributed system. 2️⃣ The Big Pi... 3 min read · [prashrey.hashnode.dev](https://prashrey.hashnode.dev/understanding-dns-like-a-system-designer?utm_source=hashnode&utm_medium=feed) [Feb 15](https://hashnode.com/posts/understanding-dns-like-a-system-designer/6991ee1c76424e51617176e8)