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Abusing Linux's firewall: the hack that allowed us to build Spectrum
- yarapavan 9y agotl;dr - Cloudflare used an obscure iptables module- TPROXY, originally designed to help transparent proxying, to help them bind to any port on Linux, without using conntrack.
- petee 9y agoDup, 6 days ago - https://news.ycombinator.com/item?id=16821807 https://news.ycombinator.com/item?id=16821807