What decentralized solution ever existed for preventing DDoS attacks while allowing a spike of traffic when, say, your blog post gets a highly upvoted HN submission? I am not really convinced this is a problem that can be solved without centralization. It'd be like trying to decentralize airports or communications cables.

> What decentralized solution ever existed for preventing DDoS attacks while allowing a spike of traffic when, say, your blog post gets a highly upvoted HN submission?

BGP FlowSpec

https://github.com/exa-networks/exabgp/wiki/FlowSpec-Overvie...