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Re: [tor-bugs] #4147 [Analysis]: What fraction of exit relays exit from a different IP than is in their descriptor?
#4147: What fraction of exit relays exit from a different IP than is in their
descriptor?
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Reporter: arma | Owner:
Type: task | Status: new
Priority: normal | Milestone:
Component: Analysis | Version:
Keywords: | Parent:
Points: | Actualpoints:
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Comment(by karsten):
"Roughly 15%" is the answer.
Here's what I did:
First, I looked at the consensuses from two weeks in February 2012 to find
all relays that got the Exit flag assigned. Second, I summed up the bytes
they wrote in the hour after the consensuses' valid-after time. Third, I
looked at the exit lists to see if the relay was found to exit via a
different address than the relay used as OR address. If there was only a
single exit address the day before the consensuses' valid-after time that
was different from the OR address, I counted the written bytes as
potentially using a different address for exiting.
Here's the result:
[[Image(ticket:4147:different-exit-address.png)]]
The parsing and graphing code is available [https://gitweb.torproject.org
/metrics-tasks.git/tree/HEAD:/task-4147 here].
Does that answer the question?
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4147#comment:2>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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