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Re: [tor-bugs] #6438 [Tor Client]: Evaluate software77's geoip database

#6438: Evaluate software77's geoip database
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 Reporter:  nickm       |          Owner:                    
     Type:  task        |         Status:  new               
 Priority:  normal      |      Milestone:  Tor: 0.2.3.x-final
Component:  Tor Client  |        Version:                    
 Keywords:  geoip       |         Parent:  #6266             
   Points:              |   Actualpoints:                    
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Comment(by karsten):

 Regarding the license question, I took a closer look at the Software77
 database and found that it's equivalent to the content of
 ftp://ftp.arin.net/pub/stats/arin/delegated-arin-latest and friends.  The
 only thing that Software77 does is add reserved address spaces as country
 `"ZZ"`, but we'd want to exclude those anyway.  So, we can simply concat
 the `"ipv4"` lines from ARIN et al. and call the license question solved.
 We can also generating `"ipv6"` and `"asn"` databases from the same files.

 Using the data provided by the five registries directly also has the
 advantage that we don't have to rely on a third party anymore.  We ran
 into that problem with
 [http://archives.seul.org/or/cvs/Sep-2009/msg00269.html ip-to-country
 removing almost all US addresses] in September 2009 and now with Maxmind
 classifying relay addresses as `"A1"`; there's no guarantee that
 Software77 won't do something similarly stupid in the future.

 Regarding the question how much Software77/the registries agree with
 Maxmind, I'd like to run another comparison when Maxmind publishes their
 September database.  Then we can traceroute relay addresses that they
 disagree about.  I'll keep an eye on Maxmind's website in the next days to
 see when there September database is available.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/6438#comment:4>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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