Low-Level Lore

The Exact Mechanics of the DynamoDB DNS Race Condition

Technical Autopsy of AWS Outage

Nov 15 • 

Mohit

5

1

September 2025

Layer 2 Network Operations: How Ethernet Frames and Smart Switches Power Gigabit Networks

Detailed Analysis of Switching and Bridging Mechanisms

Sep 28 • 

Mohit

9

August 2025

Routing Decision Process: Understanding How Packets Navigate From Host to Gateway

The Complete Journey of a Packet: From Application to Destination

Aug 15 • 

Mohit

19

2

July 2025

Process Scheduling Impacts on Lock Contention in Multi-Server Distributed Systems

How Operating System Preemption Creates Hidden Performance Bottlenecks in Concurrent Applications

Jul 31 • 

Mohit

10

1

The Great DNS Blackout: A Technical Dissection of Cloudflare's 1.1.1.1 Global Outage on July 14, 2025

Infrastructure Collapse Through Configuration Cascades and BGP Route Withdrawal

Jul 23 • 

Mohit

7

Deconstructing Network Communication: How Your Simple JSON Request Traverses Seven Layers of the OSI Stack

A Engineer's Guide to Understanding Backend-to-Backend Data Flow Through the OSI Model

Jul 18 • 

Mohit

22

3

Database Join Algorithms: The Hidden Mechanics Behind SQL Query Execution

Exploring Nested Loop, Merge, and Hash Join Strategies Through Real-World Implementation Analysis

Jul 14 • 

Mohit

11

2

Linux Process and Thread Creation: System Call Architecture

Understanding the Unified Task Model in Modern Linux Kernels

Jul 9 • 

Mohit

19

4

The Addiction of Being Essential: A Programmer’s Wake-Up Call

How My Need to Be Needed Nearly Burned Me Out and What I’m Doing About It

Jul 5 • 

Mohit

20

6

June 2025

Swap Space in Linux: What It Is & How It Works

Linux Kernel Memory Management Explained: Swap Space Architecture, Virtual Memory Subsystems, and Performance Optimization Techniques

Jun 28 • 

Mohit

9

1

𝐖𝐡𝐲 𝐔𝐬𝐞𝐫 𝐁𝐮𝐟𝐟𝐞𝐫𝐬 𝐀𝐫𝐞 𝐔𝐧𝐬𝐮𝐢𝐭𝐚𝐛𝐥𝐞 𝐟𝐨𝐫 𝐊𝐞𝐫𝐧𝐞𝐥 𝐨𝐫 𝐃𝐌𝐀 𝐔𝐬𝐞 𝐛𝐲 𝐃𝐞𝐟𝐚𝐮𝐥𝐭⁣

Why User Buffers Need Extra Care to Work with Kernel and DMA

Jun 19 • 

Mohit

7

How Does the Memory Management Unit (MMU) Work with the Unix/Linux Kernel?

Understanding how your CPU's MMU collaborates with the Linux kernel to create process isolation, memory protection, and the illusion of infinite RAM.

Jun 15 • 

Mohit

25

1

4