Is it correct to use package rate against ddos ​​attacks?

Question

go

Would it be correct to use the https://github.com/didip/tollbooth package to protect against ddos ​​attacks? And if not, why..?

Answer 1

Ratelimiters are not designed to protect against (D)DoS attacks, but to limit the number of requests per endpoint(s) per unit of time. And if a good stream of UDP traffic is sent to your server, then no rate limiter will save you, because it won't even get to him.