Uploaded June 2019 | Updated September 2026, 2 weeks ago

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hackarcana.com ← check out my courses and CTF challenges ​  
Testing GoSu web server part III - github.com/gynvael/random-stuff/tree/master/gosu-src
Part 3: Using my old webserver as an excuse to show the next steps in fuzzing, i.e. what to do after you have a fuzzer running. How to measure coverage? How to improve it?

NOTE: It's a web server I've written around 2004 for a university class. It's not that small, but... it is old code :)

Part 1: youtube.com/watch?v=VdfnAA_QmPU
Part 2: youtube.com/watch?v=SqSe6LWOS3k
Part 3: youtube.com/watch?v=_8ejZNi5SpE
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--- Links:
hackarcana.com ← my courses, articles, and CTF challenges
discord.gg/hackarcana ← hackArcana discord
https://gynvael.coldwind.pl/discord ← my / Paged Out! discord
https://pagedout.institute/ ← my Paged Out! magazine
https://gynvael.coldwind.pl/ ← my blog
https://bsky.app/profile/gynvael.bsky.social ← my Bluesky

--- Music in intro/outro:
TheFatRat - Monody feat. Laura Brehm
Watch the official music video: tinyurl.com/monodytfr
Listen to "Monody": thefatrat.ffm.to/monody
Follow TheFatRat: https://ffm.bio/thefatrat

nervous_testpilot - Office (Frozen Cortext Original Soundtrack)
nervous_testpilot - Our Heroes (Frozen Cortext Original Soundtrack)
nervous_testpilot - Focus (Frozen Synapse Original Soundtrack)
soundcloud.com/nervous_testpilot
nervoustestpilot.bandcamp.com

Stellardrone - Between the Rings
stellardrone.bandcamp.com/album/between-the-rings
soundcloud.com/stellardrone/between-the-rings
youtube.com/@StellardroneMusic

--- Team:
Shoutout and big thanks to my team who have helped me with livestreams and IRC/Discord over the years!
→ foxtrot_charlie
→ KrzaQ
→ masakra
→ hebi
→ maryush
→ disconnect3d