{"id":2579,"date":"2014-02-17T12:55:15","date_gmt":"2014-02-17T03:55:15","guid":{"rendered":"http:\/\/www.itbook.info\/web\/?p=2579"},"modified":"2014-02-17T12:55:15","modified_gmt":"2014-02-17T03:55:15","slug":"2%e6%9c%8810%e6%97%a5%e3%81%ab%e7%99%ba%e7%94%9f%e3%81%97%e3%81%9f%e3%80%8cntp%e3%83%aa%e3%83%95%e3%83%ac%e3%82%af%e3%82%b7%e3%83%a7%e3%83%b3%e6%94%bb%e6%92%83%e3%80%8d%e3%83%ac%e3%83%9d%e3%83%bc","status":"publish","type":"post","link":"https:\/\/www.itbook.info\/web\/2014\/02\/2%e6%9c%8810%e6%97%a5%e3%81%ab%e7%99%ba%e7%94%9f%e3%81%97%e3%81%9f%e3%80%8cntp%e3%83%aa%e3%83%95%e3%83%ac%e3%82%af%e3%82%b7%e3%83%a7%e3%83%b3%e6%94%bb%e6%92%83%e3%80%8d%e3%83%ac%e3%83%9d%e3%83%bc.html","title":{"rendered":"2\u670810\u65e5\u306b\u767a\u751f\u3057\u305f\u300cNTP\u30ea\u30d5\u30ec\u30af\u30b7\u30e7\u30f3\u653b\u6483\u300d\u30ec\u30dd\u30fc\u30c8"},"content":{"rendered":"<aside class=\"row veu_insertAds before\"><div class=\"col-md-12\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n                        <!-- cat_\u4e0a\u90e8 -->\r\n                        <ins class=\"adsbygoogle\" style=\"display:block\" data-ad-client=\"ca-pub-6102004203189610\" data-ad-slot=\"9628163001\" data-ad-format=\"auto\"><\/ins>\r\n                        <script>\r\n                        (adsbygoogle = window.adsbygoogle || []).push({});\r\n                        <\/script><\/div><\/aside><p>\u6700\u8fd1\u300cNTP\u30ea\u30d5\u30ec\u30af\u30b7\u30e7\u30f3\u653b\u6483\u300d\u306b\u3088\u308b\u5927\u898f\u6a21\u306aDDoS\u306e\u8a71\u984c\u304c\u3042\u308a\u307e\u3057\u305f\u3002<\/p>\n<blockquote><p><a style=\"color:#0070C5;\" href=\"http:\/\/www.itmedia.co.jp\/enterprise\/articles\/1402\/13\/news043.html\" target=\"_blank\">400Gbps\u306eDDoS\u653b\u6483\u767a\u751f\u3001\u300cNTP\u5897\u5e45\u300d\u3067\u904e\u53bb\u6700\u5927\u898f\u6a21\u306b &#8211; ITmedia \u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba<\/a><a href=\"http:\/\/b.hatena.ne.jp\/entry\/http:\/\/www.itmedia.co.jp\/enterprise\/articles\/1402\/13\/news043.html\" target=\"_blank\"><img decoding=\"async\" border=\"0\" src=\"http:\/\/b.hatena.ne.jp\/entry\/image\/http:\/\/www.itmedia.co.jp\/enterprise\/articles\/1402\/13\/news043.html\" alt=\"\" \/><\/a><\/p>\n<p>\u30d4\u30fc\u30af\u6642\u3067400Gbps\u306b\u9054\u3059\u308b\u5927\u898f\u6a21\u306a\u30b5\u30fc\u30d3\u30b9\u59a8\u5bb3\uff08DDoS\uff09\u653b\u6483\u304c\u6b27\u5dde\u3067\u78ba\u8a8d\u3055\u308c\u305f\u3068\u3044\u3046\u30022013\u5e74\u306b\u767a\u751f\u3057\u305f300Gbps\u7d1a\u306e\u653b\u6483\u3092\u5927\u5e45\u306b\u4e0a\u56de\u308a\u3001\u904e\u53bb\u6700\u5927\u898f\u6a21\u306e\u653b\u6483\u306b\u306a\u3063\u305f\u3068\u4f1d\u3048\u3089\u308c\u3066\u3044\u308b\u3002 &#8230;<\/p>\n<\/blockquote>\n<p>\u3053\u306e\u4ef6\u306b\u3064\u3044\u3066\u3001CloudFlare\u306e\u30d6\u30ed\u30b0\u306b\u8a73\u7d30\u306a\u30ec\u30dd\u30fc\u30c8\u304c\u4e0a\u304c\u3063\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n<blockquote><p><a style=\"color:#0070C5;\" href=\"http:\/\/blog.cloudflare.com\/technical-details-behind-a-400gbps-ntp-amplification-ddos-attack\" target=\"_blank\">Technical Details Behind a 400Gbps NTP Amplification DDoS Attack | CloudFlare Blog<\/a><a href=\"http:\/\/b.hatena.ne.jp\/entry\/http:\/\/blog.cloudflare.com\/technical-details-behind-a-400gbps-ntp-amplification-ddos-attack\" target=\"_blank\"><img decoding=\"async\" border=\"0\" src=\"http:\/\/b.hatena.ne.jp\/entry\/image\/http:\/\/blog.cloudflare.com\/technical-details-behind-a-400gbps-ntp-amplification-ddos-attack\" alt=\"\" \/><\/a><\/p>\n<p>On Monday we mitigated a large DDoS that targeted one of our customers. The attack peaked just shy of 400Gbps. We&#8217;ve seen a handful of other attacks at this scale, but this is the largest attack we&#8217;ve seen that uses NTP amplification.  &#8230;<\/p>\n<\/blockquote>\n<p>\u8a18\u4e8b\u306e\u3088\u308b\u3068\u3001\u4eca\u56de\u306eNTP\u306e\u8106\u5f31\u6027\u306b\u3088\u308b\u653b\u6483\u3067\u306f\u3001\u4e0a2014\u5e742\u670810\u65e5\u306b1298\u53f0\u306eNTP\u30b5\u30fc\u30d0\u304c\u3001\u6240\u6709\u8005\u306e\u77e5\u3089\u306a\u3044\u3046\u3061\u306b\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u306b\u95a2\u4e0e\u3057\u3066\u3044\u305f\u3068\u306e\u3053\u3068\u3002<br \/>\n\u30d4\u30fc\u30af\u6642\u306b\u306f\u3001\u5404\u30b5\u30fc\u30d0\u30fc\u306f\u304c87Mbps\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u751f\u6210\u3057\u3066\u3044\u305f\u3089\u3057\u3044\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/www.itbook.info\/web\/\/HLIC\/854061e42e334d4d0cf5c032a04629b0.jpg\" width=\"500\" height=\"279\" alt=\"Sheet-1\"><\/p>\n<p>\u4e0a\u306e\u56f3\u306f\u30012\u670810\u65e5\u306bDDoS\u653b\u6483\u306b\u53c2\u52a0\u3057\u305fNTP\u30b5\u30fc\u30d0\u30fc\u306e\u4f4d\u7f6e\u3067\u3059\u3002<br \/>\n\u65e5\u672c\u3082\u3057\u3063\u304b\u308a\u53c2\u52a0\u3057\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n<aside class=\"row veu_insertAds after\"><div class=\"col-md-12\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n                        <!-- cat_\u4e0a\u90e8 -->\r\n                        <ins class=\"adsbygoogle\" style=\"display:block\" data-ad-client=\"ca-pub-6102004203189610\" data-ad-slot=\"9628163001\" data-ad-format=\"auto\"><\/ins>\r\n                        <script>\r\n                        (adsbygoogle = window.adsbygoogle || []).push({});\r\n                        <\/script><\/div><\/aside>","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u300cNTP\u30ea\u30d5\u30ec\u30af\u30b7\u30e7\u30f3\u653b\u6483\u300d\u306b\u3088\u308b\u5927\u898f\u6a21\u306aDDoS\u306e\u8a71\u984c\u304c\u3042\u308a\u307e\u3057\u305f\u3002 400Gbps\u306eDDoS\u653b\u6483\u767a\u751f\u3001\u300cNTP\u5897\u5e45\u300d\u3067\u904e\u53bb\u6700\u5927\u898f\u6a21\u306b &#8211; ITmedia \u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba \u30d4\u30fc\u30af\u6642\u3067400Gbps\u306b\u9054 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38],"tags":[188,218,27],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.0 - 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