John Rudd wrote on Wed, 8 Apr 2009 12:44:29 -0700:

> 1) Does anyone know of a convenient command line tool (perl library
> being ideal) that lets you give it an IP address, and it tells you the
> country and/or continent (and that's it)?

google for GeoIP.

> 
> 2) similarly, does anyone know of a command line tool where you can
> give it a country and/or continent, and it will generate concise IP
> addresses ranges (like A.B.C.D-E.F.G.H) that have been allocated to
> that country/continent? (and by "concise", I mean compacted into as
> few range statements as possible, to minimize the number of lines)

You want to block by country? milter-greylist has GeoIP support built-in 
and allows to black/grey/whitelist on country.

Kai

-- 
Kai Schätzl, Berlin, Germany
Get your web at Conactive Internet Services: http://www.conactive.com



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