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265 points methuselah_in | 2 comments | 20 Jun 25 18:34 UTC | HN request time: 0.564s | source

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jakub_g ◴[24 Jun 25 14:48 UTC] No.44366870[source]▶

> QOTD DDoS attack

> How it works: Abuses the Quote of the Day (QOTD) Protocol, which listens on UDP port 17 and responds with a short quote or message.

Does any reasonable operating system those days support this protocol? Sounds like "IP over Avian Carriers" to me.

1. tedunangst ◴[24 Jun 25 18:44 UTC] No.44369421[source]▶

I ran a qotd server for a while, only retired two months ago actually. It wasn't very popular.

replies(1): >>44371722 #

2. Aachen ◴[24 Jun 25 22:31 UTC] No.44371722[source]▶

Did you have some sort of rate limiting on it?

How Cloudflare blocked a monumental 7.3 Tbps DDoS attack