How does the binary DAT from Maxmind work?

Posted by Rich on Stack Overflow See other posts from Stack Overflow or by Rich
Published on 2009-08-18T16:12:48Z Indexed on 2010/04/12 20:03 UTC
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Maxmind offers a binary DAT file format for downloading their GeoIP database.

http://geolite.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz

Does anyone know how this has been packaged? Also, is there any kind of copy protection on the data?

I'd like to offer up a set of data in a similar way.

Anyone with any knowledge of this will receive my undying gratitude :-)

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