Buffer vs Cache in Linux — what each really caches, how free and /proc/meminfo define them, and how to verify

binary heap: structure, operations, and applications

Understanding LLM fundamentals — tokenization, embedding, attention, and text generation with concrete examples

Anycast + BGP Overview

How to add client-side fuzzy search to a Hugo blog using Fuse.js

Understanding the 7-layer OSI model with a concrete example: a message from a phone over WiFi to a wired PC

A comprehensive overview of HTTP protocol evolution — from the one-line HTTP/0.9 to HTTP/3 over QUIC

WebSocket protocol overview

production-style kubernetes cluster on a single server using kubeadm

Step-by-step walkthrough of how Linux translates a file path into physical disk blocks, with commands to demonstrate each step