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Re: [tor-talk] TorBirdy seems to connect to the same exit node again and again

Hi Leeroy

> You mentioned trying to perform a similar look-up for exit policies
> using Atlas.
Yes, I tried "25" or "port 25" in Atlas' search, but did not get any
results... it seemed like the most intuitive place to look for port
info. Searching in the local database did not occur to me, before you
mentioned it.


> Hi again,
> To demonstrate further the importance of port choice I think a
> clarification is in order. From tor's spec [0] an exit may specify an
> accept or reject policy. So the number of exits that may allow your
> exiting traffic (in this case mail) is those that "accept" and those
> that don't "reject". Keep that in mind when parsing your data in
> whichever method. The count is roughly 12 exits for port 25 versus 657
> for port 587. The choice of exit is influenced by exit bandwidth and
> successful use (in the short-term).
> You mentioned trying to perform a similar look-up for exit policies
> using Atlas. I didn't see an easy way to do so from the protocol [1]
> used by Atlas. It's possible to perform the same inspection of exit
> policy (as parsing/cat+grep local data) using the wget command with a
> parametrization of the details method. There's no built in way to just
> get the count of exits allowing some exit traffic. Or is there? Maybe
> this would be a useful feature? It would allow a more informed choice
> (12 versus 657 out of ~1000).
> --leeroy
> [0] https://gitweb.torproject.org/torspec.git/tree/dir-spec.txt#n2273
> [1] https://onionoo.torproject.org/protocol.html
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