HN Hall of Fame Weekly email

Reverse engineering a camera protocol for fun and profit

www.thirtythreeforty.net Essays & writing Essays & articles Security & privacy Candidate
Screenshot of www.thirtythreeforty.net captured 2026-07-20
Page preview · captured 2026-07-20

Resurfaced independently across 2 calendar years, with breakout response in 2 of them.

submissions
5
submitters
4
observed span
2020–2022
peak thread · 89 comments
479 pts
latest 20+ return · 2022-10-05
192 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

I must say, out of all the things to happen on a Thursday night I wouldn't have expected to read an article where someone referenced my own code that I wrote when I was 15. (5 years ago now... time flies) Here's the file I presumed he looked at; https://github.com/nvella/sdvr/blob/master/pk.c I was trying to reverse-engineer my parent's network CCTV DVR so I could hopefully integrate it with Home Assistant - as far as I'm aware the sluggish smartphone apps are…

nvella·479-point thread·

Love these blogs where someone casually demonstrates skills in roughly 11 different areas (from Soldering, C++ plugin writing to clear blog writing) all coming together to accomplish something.

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
2

100+ points or 50+ comments

Total points
678

reference only — not used in Hall rules or ranking

Total comments
123

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2020-05-16Hacking Reolink cameras for fun and profitthrtythreeforty20
2020-05-17Hacking Reolink cameras for fun and profitchmaynard30
2020-07-08Hacking Reolink cameras for fun and profit: Neolink a RTSP client proxy in Rustwilsonfiifi20
2020-07-16Reverse engineering a camera protocol for fun and profitFirst breakout · Best threadwilsonfiifi47989
2022-10-05Hacking Reolink cameras for fun and profit (2020)Latest 20+ point returnwalterbell19234