---
title: "Sandip Kumar Dey (@SandipKumarDey) | Hashnode"
description: "an executor. Read the latest articles by Sandip Kumar Dey on Hashnode."
url: "https://hashnode.com/@SandipKumarDey"
---

@SandipKumarDey

# Sandip Kumar Dey

@SandipKumarDey · Joined January 2025

an executor

[Website](https://sandipkumardey.substack.com/)

### [The Last Networking Guide You'll Ever Need](https://devkibani.hashnode.dev/the-last-networking-guide-you-ll-ever-need?utm_source=hashnode&utm_medium=feed)

Every click creates a ripple. Following a packet across the planet. The last networking guide you'll ever need.

33 min read · [devkibani.hashnode.dev](https://devkibani.hashnode.dev/the-last-networking-guide-you-ll-ever-need?utm_source=hashnode&utm_medium=feed)

[Jun 17](https://hashnode.com/posts/the-last-networking-guide-you-ll-ever-need/6a330ae0d497fc71b474dbb1)

### [Zero to eBPF: Deep Dive](https://devkibani.hashnode.dev/zero-to-ebpf-deep-dive?utm_source=hashnode&utm_medium=feed)

What is a Kernel? (User Mode vs Kernel Mode) The kernel is the most critical software component of any operating system, functioning like the brain or central command center of a computer. It resides

18 min read · [devkibani.hashnode.dev](https://devkibani.hashnode.dev/zero-to-ebpf-deep-dive?utm_source=hashnode&utm_medium=feed)

[Apr 30](https://hashnode.com/posts/zero-to-ebpf-deep-dive/69f38282909e64ad07fa5ad2)

### [Rsync — the tool I wish someone had told me about earlier](https://devkibani.hashnode.dev/rsync-the-tool-i-wish-someone-had-told-me-about-earlier?utm_source=hashnode&utm_medium=feed)

I was deep into a project, trying to keep files in sync between my local machine and a remote dev server. My workflow was embarrassing zip the folder, scp the whole thing over, unzip, repeat. Every ti

3 min read · [devkibani.hashnode.dev](https://devkibani.hashnode.dev/rsync-the-tool-i-wish-someone-had-told-me-about-earlier?utm_source=hashnode&utm_medium=feed)

[Apr 9](https://hashnode.com/posts/rsync-the-tool-i-wish-someone-had-told-me-about-earlier/69d7e15dfa7251682ed5dc61)

### [IAM architecture- deep dive](https://devkibani.hashnode.dev/iam-architecture-deep-dive?utm_source=hashnode&utm_medium=feed)

I promised you the Four A's of IAM. Let's start with the architecture underneath it all. IAM High-Level Architecture Think of IAM like a building. Before anyone gets a keycard, someone has to build th

5 min read · [devkibani.hashnode.dev](https://devkibani.hashnode.dev/iam-architecture-deep-dive?utm_source=hashnode&utm_medium=feed)

[Mar 19](https://hashnode.com/posts/iam-architecture-deep-dive/69bc17efb238fd45a30f5245)

### [IAM- more than just identity](https://devkibani.hashnode.dev/iam-more-than-just-identity?utm_source=hashnode&utm_medium=feed)

Firewalls used to be enough.Then we moved to the cloud, and the perimeter dissolved overnight. Today, your data lives across SAAS tools, cloud providers, third-party APIs, and devices you don't contro

4 min read · [devkibani.hashnode.dev](https://devkibani.hashnode.dev/iam-more-than-just-identity?utm_source=hashnode&utm_medium=feed)

[Mar 15](https://hashnode.com/posts/iam-more-than-just-identity/69b6380a34db550e2c29f42b)