June 2016
Beginner to intermediate
376 pages
8h 58m
Japanese
Content preview from データ分析によるネットワークセキュリティ
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166
8
章 参照と検索：身元を確認するツール
最も一般的に使われるオープンソースのリファレンスはMaxMind 社のGeoIPで、都市、国、地域、
組織、ISP、ネットワーク速度のデータベースを提供する。GeoIP（http://bit.ly/geo-ip）は、「軽量」
データベースの形で都市と国を探す無料サービスも提供している。MaxMind社の製品はすべてダウ
ンロード可能なデータベースであり、定期的に更新されている。MaxMind社はこのサービスを長年
提供しており、Pythonやその他のスクリプト言語からデータベースにアクセスするためのさまざま
なAPIも提供している。
さらに広範な情報が欲しければ、Neustar（http://www.neustar.biz）や Digital Envoy社のDigital
Element（http://www.digitalenvoy.com）がある。どちらもさらに精密な計測情報のほか、大都市統
計地域（M
SA：Metropolitan Statistical Area、政府が統計分析に使う高人口密度の隣接地域）や北
米産業分類体系（NAICS：North American Industry Classification System）コード（業種のため
のデューイ10 進番号に類似した数値識別子）などの追加の人口動態データを提供している。ただし、
このようなサービスは安価ではない。
8.3
DNS
世界が単純ならば、個々のIP アドレスには1 つだけ ...
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