I know there used to be a nice convenient set of RBL's based upon countries, such that you could easily track an IP address back to which country it came from. But, IIRC, that RBL went under.
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)? 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) (it's only slightly OT, because I plan to use this for fighting some internal spam problems we've been having; but it wouldn't be part of our spam assassin infrastructure) John
