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Re: [tor-bugs] #1751 [Tor Relay]: Project: Make it harder to use exits as one-hop proxies
#1751: Project: Make it harder to use exits as one-hop proxies
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Reporter: nickm | Owner:
Type: task | Status: needs_review
Priority: normal | Milestone: Deliverable-Sep2010
Component: Tor Relay | Version:
Keywords: | Parent:
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Comment(by arma):
I'm not sure what I think the default default should be. If there's no
consensus or we forget to have enough active votes about that param, and
we think the feature works, we want it to default to 1. But if we later
decide there's a bug in how Tors do the blocking of exit requests, and we
end up moving to a new behavior and a new consensus param name, then we
would have to maintain the old consensus param just to declare "no don't
do that if you're an old tor" for the next years.
So I would argue that we should make sure to have enough active votes
about the param, not worry about the transient edge case where the relay
doesn't have any consensus yet, and be defensive against the possibility
that our heuristic in connection_exit_begin_conn() is not the final
heuristic we want to choose.
On the other hand, it may well be the case that we improve the heuristic
in future versions, but want to keep using the one we have now in present
versions since it's good enough and better than nothing.
I'm not sure how to read the future here. So I guess either of them is ok,
and we'll learn a lesson either way. It really depends whether we think
this particular heuristic could go downright wrong down the road, as
opposed to "not as right as it could be".
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/1751#comment:25>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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