Tag

#networking

4posts

Developer ToolsMay 17, 20266 min read

Hosting a website on a $1 microcontroller

One programmer squeezed a real TCP/IP stack onto a $1 AVR chip using SLIP over serial. The site is slow, the TCP is buggy, and it loads.

#embedded#networking#avr

System DesignMay 25, 20235 min read

CDN: The 'Local Convenience Store' Mental Model

Why does your image load instantly for users in the US but crawls in Vietnam? A mastery guide to CDN Edge Nodes, Cache-Control headers, and cache busting.

#system-design#performance#networking

System DesignMay 21, 20235 min read

Load Balancer, Reverse Proxy, API Gateway: The Grand Hotel Mental Model

Confused by the 'Traffic Trio'? A mastery-level guide to Load Balancers, Reverse Proxies, and API Gateways - from mental models to Nginx configs.

#system-design#networking#infrastructure

System DesignMay 21, 20237 min read

TCP vs. UDP: The 'Registered Mail' Mental Model

Why does video calling glitch but file downloads pause? A mastery guide to the 3-Way Handshake, Head-of-Line Blocking, and why UDP is winning (HTTP/3).

#networking#tcp-ip#udp