> I guess they might use [UDP] for DHT control messages
And IIRC that's exactly what they use UDP for.
The subreddit had a lot of good info last I checked (a few months).
Note that there is no "max comment depth" on HN, and I don't know where this thought keeps coming from. There are a few reasons the "reply" link may not be shown:
- The comment was posted too recently, and you need to wait for the cooldown to expire. This is proportional to comment depth. It's said this is a flamewar prevention mechanism.
- The comment is too old.
I don't really understand why OpenBazaar would use UDP, and I can't seem to find any information about it, but it looks like they tell server operators to open up both a TCP and UDP port. I guess they might use it for DHT control messages? Their documentation site is down right now, so that's the best I got.
https://github.com/OpenBazaar/OpenBazaar-Server/issues/240
https://github.com/OpenBazaar/OpenBazaar-Server/issues/202
https://github.com/OpenBazaar/OpenBazaar-Server/issues/164
The server would need to be re-written for native support since it uses UDP, but I think it might be possible using a 3rd party like onioncat.