[tor-dev] Detecting if a IP address belongs to a Tor Exit node.
m at niij.org
Tue Dec 4 17:51:16 UTC 2012
Excerpts from Julian Yon's message of 2012-12-04 14:10:50 +0100:
> On Tue, 4 Dec 2012 13:25:15 +0100
> Jorge Couchet <jorge.couchet at gmail.com> wrote:
> > I'm working with the ticket 7549
> > (https://trac.torproject.org/projects/tor/ticket/7549).
> > ...
> > So, the question is: is there any other reasonable way (efficient
> > -development and execution time- and safe) to see if an IP address
> > belongs to a Tor Exit node?
> *looks at the ticket and your approach*
> Why not just run and query an Onionoo server?
Onionoo isn't really optimised in regards to giving out lists of exits, the
parsing of the JSON sounds like a duplicate effort to me. Also, shipping
Onionoo with every facilitator seems a bit overkill.
Please correct me if I'm missing something, but there's two options that are
easy to integrate that already exist:
Tor Bulk Exit List, if all you need is checking for access on port 80
And TorDNSEL, which would include checking for IP:port
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