[tor-relays] Experimental DoS mitigation is in tor master

[teor]

> On 1 Feb 2018, at 18:59, grarpamp <grarpamp at gmail.com> wrote:
> 
> Has #2 been eval regarding onion indexing engines, oniontorrent, etc?
> They use a lot of resources for agnostic purposes.
> Censoring them as collateral damage would be bad.

Applications that use a lot of resources will have to rate-limit themselves.
Otherwise, relays will rate-limit them.

Since traffic is encrypted, there is no way we can distinguish "good"
scanners or downloaders from "bad" ones. All applications will need to
respect these new limits.

T