[metrics-team] onionoo exit_addresses semantics

[Karsten Loesing]

On 2018-02-17 14:08, Iain Learmonth wrote:
> Hi,

Hi!

> On 17/02/18 10:27, nusenu wrote:
>> I'd prefer the current implementation over one that always includes
>> the ORPort IP in the exit_addresses, but either way it is not a
>> big effort to add a check on my site that drops exit_addresses
>> if exit_addresses consists of the OR Port IP only. 
> 
> In a future world where TorDNSEL works using Onionoo as the data source,
> not including OR addresses that have been seen to be used as exit
> addresses in exit_addresses means that, like in teor's case, when an
> exit relay doesn't use its OR address for exit connections it would
> still be included in the TorDNSEL lists anyway and so would result in
> overblocking.
> 
> I think improving accuracy is more important than not breaking backwards
> compatibility in this case.

Alright, I hope I captured everything from this discussion on the
following ticket:

https://trac.torproject.org/projects/tor/ticket/25332

Please add anything that I overlooked and that seems important to make a
good decision what to do.

Thanks!

All the best,
Karsten

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