{"id":3115,"date":"2020-02-26T13:55:29","date_gmt":"2020-02-26T04:55:29","guid":{"rendered":"https:\/\/www.daikodenshi.jp\/daiko-plus\/?p=3115"},"modified":"2025-07-29T17:39:25","modified_gmt":"2025-07-29T08:39:25","slug":"ddos-attack","status":"publish","type":"post","link":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/security\/ddos-attack\/","title":{"rendered":"DDoS\u653b\u6483\u3068\u306f\uff1f\u7a2e\u985e\u3084\u539f\u56e0\u30fb\u52b9\u679c\u7684\u306a\u5bfe\u7b56\u3092\u5fb9\u5e95\u89e3\u8aac"},"content":{"rendered":"<img decoding=\"async\" class=\"size-full wp-image-16449 aligncenter\" src=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2020\/02\/3115.png\" alt=\"DDoS\u653b\u6483\u3068\u306f\uff1f\u7a2e\u985e\u3084\u539f\u56e0\u30fb\u52b9\u679c\u7684\u306a\u5bfe\u7b56\u3092\u5fb9\u5e95\u89e3\u8aac\" width=\"750\" height=\"422\" srcset=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2020\/02\/3115.png 750w, https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2020\/02\/3115-300x169.png 300w, https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2020\/02\/3115-485x273.png 485w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/>\n<p><span style=\"font-weight: 400;\">\u9032\u5316\u3092\u7d9a\u3051\u308b\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u3002\u305d\u306e\u4e2d\u3067\u3082\u8105\u5a01\u3092\u5897\u3057\u7d9a\u3051\u3066\u3044\u308b\u306e\u304c\u300cDDoS\u653b\u6483\u300d\u3067\u3059\u3002\u5f93\u6765\u578b\u306eDoS\u653b\u6483\u306f\u300cDDoS\u653b\u6483\u300d\u3078\u3068\u3001\u305d\u3057\u3066\u305d\u306e\u653b\u6483\u624b\u6cd5\u306f\u300c\u30de\u30eb\u30c1\u30d9\u30af\u30c8\u30eb\u578b\u300d\u3078\u3068\u5909\u5316\u3057\u3066\u304a\u308a\u3001\u591a\u304f\u306e\u4f01\u696d\u30fb\u56e3\u4f53\u304c\u305d\u306e\u5bfe\u5fdc\u306b\u982d\u3092\u62b1\u3048\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u305d\u306e\u305f\u3081\u3001DDoS\u653b\u6483\u306e\u6982\u8981\u3084\u7a2e\u985e\u3092\u7406\u89e3\u3057\u305f\u3046\u3048\u3067\u3001\u52b9\u679c\u7684\u306a\u5bfe\u7b56\u3092\u8b1b\u3058\u308b\u3053\u3068\u304c\u5927\u5207\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u4eca\u56de\u306f\u3001DDoS\u653b\u6483\u306e\u9032\u5316\u3068\u8003\u3048\u5f97\u308b\u5bfe\u7b56\u6cd5\u306b\u3064\u3044\u3066\u3001\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/span><\/p>\n<a href=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp\/security\/sophisticated-cyber-attack-measures-3steps\/\"><img decoding=\"async\" class=\"aligncenter wp-image-13303 size-full\" src=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/03\/CTA_AG-11.png\" alt=\"\" width=\"690\" height=\"246\" srcset=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/03\/CTA_AG-11.png 690w, https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/03\/CTA_AG-11-300x107.png 300w\" sizes=\"(max-width: 690px) 100vw, 690px\" \/><\/a>\n<div id=\"toc_container\" class=\"toc_white no_bullets\"><p class=\"toc_title\">\u76ee\u6b21<\/p><ul class=\"toc_list\"><li><a href=\"#DDoS\"><span class=\"toc_number toc_depth_1\">1<\/span> DDoS\u653b\u6483\u3068\u306f\uff1f<\/a><ul><li><a href=\"#DDoS-2\"><span class=\"toc_number toc_depth_2\">1.1<\/span> DDoS\u653b\u6483\u306e\u5b9a\u7fa9\u3068\u7279\u5fb4<\/a><\/li><li><a href=\"#DoS\"><span class=\"toc_number toc_depth_2\">1.2<\/span> DoS\u653b\u6483\u3068\u306e\u9055\u3044<\/a><\/li><li><a href=\"#DDoS-3\"><span class=\"toc_number toc_depth_2\">1.3<\/span> DDoS\u653b\u6483\u306e\u5bfe\u7b56\u304c\u5fc5\u8981\u306a\u7406\u7531<\/a><\/li><\/ul><\/li><li><a href=\"#DDoS-4\"><span class=\"toc_number toc_depth_1\">2<\/span> DDoS\u653b\u6483\u306e\u76ee\u7684<\/a><ul><li><a href=\"#i\"><span class=\"toc_number toc_depth_2\">2.1<\/span> \u7af6\u5408\u4ed6\u793e\u306b\u3088\u308b\u55b6\u696d\u59a8\u5bb3<\/a><\/li><li><a href=\"#i-2\"><span class=\"toc_number toc_depth_2\">2.2<\/span> \u91d1\u92ad\u76ee\u7684<\/a><\/li><li><a href=\"#i-3\"><span class=\"toc_number toc_depth_2\">2.3<\/span> \u4f01\u696d\u3084\u7d44\u7e54\u3078\u306e\u6297\u8b70\u30fb\u4e3b\u5f35<\/a><\/li><li><a href=\"#i-4\"><span class=\"toc_number toc_depth_2\">2.4<\/span> \u5acc\u304c\u3089\u305b\u30fb\u6109\u5feb\u72af\u7684\u306a\u653b\u6483<\/a><\/li><li><a href=\"#i-5\"><span class=\"toc_number toc_depth_2\">2.5<\/span> \u4ed6\u306e\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u306e\u30ab\u30e2\u30d5\u30e9\u30fc\u30b8\u30e5<\/a><\/li><\/ul><\/li><li><a href=\"#DDoS-5\"><span class=\"toc_number toc_depth_1\">3<\/span> DDoS\u653b\u6483\u306e\u7a2e\u985e<\/a><ul><li><a href=\"#SYNFIN\"><span class=\"toc_number toc_depth_2\">3.1<\/span> SYN\u30d5\u30e9\u30c3\u30c9\u653b\u6483\u30fbFIN\u30d5\u30e9\u30c3\u30c9\u653b\u6483<\/a><\/li><li><a href=\"#ACK\"><span class=\"toc_number toc_depth_2\">3.2<\/span> ACK\u30d5\u30e9\u30c3\u30c9\u653b\u6483<\/a><\/li><li><a href=\"#UDP\"><span class=\"toc_number toc_depth_2\">3.3<\/span> UDP\u30d5\u30e9\u30c3\u30c9\u653b\u6483<\/a><\/li><li><a href=\"#DNS\"><span class=\"toc_number toc_depth_2\">3.4<\/span> DNS\u30d5\u30e9\u30c3\u30c9\u653b\u6483<\/a><\/li><li><a href=\"#HTTP_GETPOST_Flood\"><span class=\"toc_number toc_depth_2\">3.5<\/span> HTTP GET\/POST Flood\u653b\u6483<\/a><\/li><li><a href=\"#Slow_HTTP_DoS_Attack\"><span class=\"toc_number toc_depth_2\">3.6<\/span> Slow HTTP DoS Attack<\/a><\/li><\/ul><\/li><li><a href=\"#DDoS-6\"><span class=\"toc_number toc_depth_1\">4<\/span> DDoS\u653b\u6483\u5bfe\u7b56\u304c\u300c\u96e3\u3057\u3044\u300d\u3068\u8a00\u308f\u308c\u308b\u7406\u7531<\/a><\/li><li><a href=\"#DDoS-7\"><span class=\"toc_number toc_depth_1\">5<\/span> \u52b9\u679c\u7684\u306aDDoS\u653b\u6483\u5bfe\u7b56\u65b9\u6cd5<\/a><ul><li><a href=\"#i-6\"><span class=\"toc_number toc_depth_2\">5.1<\/span> \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u76e3\u8996\u306e\u5f37\u5316<\/a><\/li><li><a href=\"#i-7\"><span class=\"toc_number toc_depth_2\">5.2<\/span> \u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u30fb\u30eb\u30fc\u30bf\u30fc\u306e\u9069\u5207\u306a\u8a2d\u5b9a<\/a><\/li><li><a href=\"#i-8\"><span class=\"toc_number toc_depth_2\">5.3<\/span> \u653b\u6483\u691c\u77e5\u30fb\u30a2\u30e9\u30fc\u30c8\u30b7\u30b9\u30c6\u30e0\u306e\u5c0e\u5165<\/a><\/li><li><a href=\"#WAFWeb_Application_Firewall\"><span class=\"toc_number toc_depth_2\">5.4<\/span> WAF\uff08Web Application Firewall\uff09\u306e\u6d3b\u7528<\/a><\/li><li><a href=\"#i-9\"><span class=\"toc_number toc_depth_2\">5.5<\/span> \u5c02\u7528\u30c4\u30fc\u30eb\u30fb\u30b5\u30fc\u30d3\u30b9\u306e\u5229\u7528<\/a><\/li><\/ul><\/li><li><a href=\"#DDoS-8\"><span class=\"toc_number toc_depth_1\">6<\/span> \u9069\u5207\u306aDDoS\u653b\u6483\u5bfe\u7b56\u3092\u59cb\u3081\u3088\u3046<\/a><\/li><\/ul><\/div>\n<h2 id=\"toc_id1\"  class=\"style3a\"><span id=\"DDoS\">DDoS\u653b\u6483\u3068\u306f\uff1f<\/span><\/h2>\n<img decoding=\"async\" class=\"size-full wp-image-15054 aligncenter\" src=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image1.jpg\" alt=\"\" width=\"640\" height=\"427\" srcset=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image1.jpg 640w, https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image1-300x200.jpg 300w, https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image1-485x324.jpg 485w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/>\n<p><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u306f\u3001\u8fd1\u5e74\u554f\u984c\u8996\u3055\u308c\u3066\u3044\u308b\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u3067\u3059\u304c\u3001\u300c\u3069\u306e\u3088\u3046\u306a\u653b\u6483\u304b\u300d\u3092\u5177\u4f53\u7684\u306b\u77e5\u3089\u306a\u3051\u308c\u3070\u5bfe\u7b56\u3067\u304d\u307e\u305b\u3093\u3002\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3092\u8b1b\u3058\u308b\u305f\u3081\u306b\u3001DDoS\u653b\u6483\u306e\u6982\u8981\u3092\u78ba\u8a8d\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u306e\u5b9a\u7fa9\u3068\u7279\u5fb4<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">DoS\u653b\u6483\u3068\u306e\u9055\u3044<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u306e\u5bfe\u7b56\u304c\u5fc5\u8981\u306a\u7406\u7531<\/span><\/li>\n<\/ul>\n<h3 id=\"toc_id2\" ><span id=\"DDoS-2\"><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u306e\u5b9a\u7fa9\u3068\u7279\u5fb4<\/span><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">DDoS\u653b\u6483\uff08Denial of Service attack\uff09\u3068\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306b\u5206\u6563\u3055\u308c\u305f\u591a\u6570\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3084\u30c7\u30d0\u30a4\u30b9\u304b\u3089\u3001\u6a19\u7684\u306e\u30b5\u30fc\u30d0\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u5bfe\u3057\u3066\u5927\u91cf\u306e\u901a\u4fe1\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u4e00\u6589\u306b\u9001\u308a\u3064\u3051\u3001\u30b5\u30fc\u30d3\u30b9\u3092\u505c\u6b62\u3055\u305b\u308b\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u306e\u4e00\u7a2e\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u306f\u300c\u5206\u6563\u578b\u30b5\u30fc\u30d3\u30b9\u62d2\u5426\u653b\u6483\u300d\u3068\u547c\u3070\u308c\u3001\u653b\u6483\u5143\u304c1\u53f0\u3067\u306f\u306a\u304f\u3001\u6570\u767e\u301c\u6570\u4e07\u53f0\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304c\u4f7f\u308f\u308c\u308b\u70b9\u304c\u7279\u5fb4\u3067\u3059\u3002\u591a\u304f\u306e\u5834\u5408\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u306b\u3088\u3063\u3066\u9060\u9694\u64cd\u4f5c\u3055\u308c\u3066\u3044\u308b\u30dc\u30c3\u30c8\u30cd\u30c3\u30c8\uff08Botnet\uff09\u304c\u5229\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u4eba\u306e\u4ecb\u5165\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u305f\u81ea\u52d5\u5316\u653b\u6483\u4f53\u5236\u304c\u6574\u3048\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u5177\u4f53\u7684\u306b\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306a\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u653b\u6483\u5143\u306eIP\u30a2\u30c9\u30ec\u30b9\u304c\u4e16\u754c\u4e2d\u306b\u5206\u6563\u3057\u3066\u304a\u308a\u3001\u7279\u5b9a\u304c\u96e3\u3057\u3044<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u901a\u4fe1\u81ea\u4f53\u306f\u6b63\u898f\u306e\u5f62\u5f0f\u3067\u9001\u3089\u308c\u308b\u305f\u3081\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3084IPS\u3067\u306f\u9632\u3052\u306a\u3044\u30b1\u30fc\u30b9\u304c\u591a\u3044<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u653b\u6483\u3092\u53d7\u3051\u305f\u30b5\u30fc\u30d3\u30b9\u304c\u5b8c\u5168\u505c\u6b62\u3057\u3001\u696d\u52d9\u3084\u58f2\u4e0a\u306b\u5927\u304d\u306a\u640d\u5bb3\u3092\u4e0e\u3048\u308b<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">\u73fe\u5728\u3067\u306f\u3001\u653f\u5e9c\u6a5f\u95a2\u3084\u91d1\u878d\u6a5f\u95a2\u30fb\u5927\u4f01\u696d\u3060\u3051\u3067\u306a\u304f\u3001\u500b\u4eba\u30d6\u30ed\u30b0\u3084\u5c0f\u898f\u6a21EC\u30b5\u30a4\u30c8\u3082\u88ab\u5bb3\u5bfe\u8c61\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001DDoS\u653b\u6483\u306e\u7279\u5fb4\u3092\u7406\u89e3\u3057\u305f\u3046\u3048\u3067\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3092\u8b1b\u3058\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<h3 id=\"toc_id3\" ><span id=\"DoS\"><span style=\"font-weight: 400;\">DoS\u653b\u6483\u3068\u306e\u9055\u3044<\/span><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u3068DoS\u653b\u6483\u306f\u6df7\u540c\u3055\u308c\u3084\u3059\u3044\u3067\u3059\u304c\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306a\u9055\u3044\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td>\n<p><span style=\"font-weight: 400;\">\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u306e\u7a2e\u985e<\/span><\/p>\n<\/td>\n<td>\n<p><span style=\"font-weight: 400;\">DDoS\u653b\u6483<\/span><\/p>\n<\/td>\n<td>\n<p><span style=\"font-weight: 400;\">DoS\u653b\u6483<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p><span style=\"font-weight: 400;\">\u653b\u6483\u5143<\/span><\/p>\n<\/td>\n<td>\n<p><span style=\"font-weight: 400;\">\u5358\u4e00\uff081\u53f0\u306ePC\u306a\u3069\uff09<\/span><\/p>\n<\/td>\n<td>\n<p><span style=\"font-weight: 400;\">\u8907\u6570\uff08\u30dc\u30c3\u30c8\u30cd\u30c3\u30c8\u306a\u3069\uff09<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p><span style=\"font-weight: 400;\">\u691c\u77e5\u306e\u3057\u3084\u3059\u3055<\/span><\/p>\n<\/td>\n<td>\n<p><span style=\"font-weight: 400;\">\u6bd4\u8f03\u7684\u3057\u3084\u3059\u3044<\/span><\/p>\n<\/td>\n<td>\n<p><span style=\"font-weight: 400;\">\u975e\u5e38\u306b\u56f0\u96e3<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p><span style=\"font-weight: 400;\">\u653b\u6483\u306e\u5f37\u5ea6<\/span><\/p>\n<\/td>\n<td>\n<p><span style=\"font-weight: 400;\">\u9650\u5b9a\u7684<\/span><\/p>\n<\/td>\n<td>\n<p><span style=\"font-weight: 400;\">\u5727\u5012\u7684\u306b\u5f37\u529b<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p><span style=\"font-weight: 400;\">\u9632\u5fa1\u306e\u96e3\u6613\u5ea6<\/span><\/p>\n<\/td>\n<td>\n<p><span style=\"font-weight: 400;\">\u4f4e\uff5e\u4e2d\u7a0b\u5ea6<\/span><\/p>\n<\/td>\n<td>\n<p><span style=\"font-weight: 400;\">\u9ad8\u3044\uff08\u9ad8\u5ea6\u306a\u5bfe\u7b56\u304c\u5fc5\u8981\uff09<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">DoS\u653b\u6483\u306f1\u53f0\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304b\u3089\u653b\u6483\u304c\u4ed5\u639b\u3051\u3089\u308c\u307e\u3059\u304c\u3001DDoS\u653b\u6483\u306f\u8907\u6570\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304b\u3089\u4e00\u6589\u306b\u653b\u6483\u304c\u4ed5\u639b\u3051\u3089\u308c\u308b\u305f\u3081\u3001\u653b\u6483\u5bfe\u8c61\u306b\u304b\u304b\u308b\u8ca0\u8377\u304c\u5927\u304d\u304f\u306a\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">DoS\u653b\u6483\u3068\u6bd4\u3079\u3066DDoS\u653b\u6483\u306f\u3001\u691c\u77e5\u3068\u9632\u5fa1\u304c\u6975\u3081\u3066\u96e3\u3057\u3044\u305f\u3081\u3001\u3088\u308a\u9ad8\u5ea6\u306a\u9632\u5fa1\u7b56\u3084\u5c02\u9580\u7684\u306a\u30c4\u30fc\u30eb\u304c\u5fc5\u8981\u3067\u3059\u3002<\/span><\/p>\n<h3 id=\"toc_id4\" ><span id=\"DDoS-3\"><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u306e\u5bfe\u7b56\u304c\u5fc5\u8981\u306a\u7406\u7531<\/span><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u306e\u8105\u5a01\u306f\u5e74\u3005\u6df1\u523b\u5316\u3057\u3066\u304a\u308a\u3001\u305d\u306e\u5f71\u97ff\u306f\u6280\u8853\u9762\u3060\u3051\u306b\u3068\u3069\u307e\u308a\u307e\u305b\u3093\u3002\u4e0b\u8a18\u306e\u3088\u3046\u306a\u5f71\u97ff\u30fb\u4e8c\u6b21\u88ab\u5bb3\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u3001DDoS\u653b\u6483\u3078\u306e\u5bfe\u7b56\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u30b5\u30fc\u30d3\u30b9\u505c\u6b62\u306b\u3088\u308b\u58f2\u4e0a\u30fb\u4fe1\u7528\u306e\u640d\u5931<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">EC\u30b5\u30a4\u30c8\u3084\u4f1a\u54e1\u5236\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u3001\u6570\u5206\u306e\u30c0\u30a6\u30f3\u3067\u3082\u6570\u5341\u4e07\u5186\u301c\u6570\u767e\u4e07\u5186\u306e\u640d\u5bb3\u304c\u751f\u3058\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u672a\u7d4c\u9a13\u8005\u30fb\u30b9\u30ad\u30eb\u306a\u3057\u306e\u62c5\u5f53\u8005\u304c\u88ab\u5bb3\u3092\u62e1\u5927\u3055\u305b\u308b<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">\u653b\u6483\u306f\u4eba\u3067\u306f\u306a\u304f\u300c\u8106\u5f31\u306a\u30b7\u30b9\u30c6\u30e0\u300d\u3092\u72d9\u3044\u307e\u3059\u3002\u30b9\u30ad\u30eb\u304c\u306a\u3044\u62c5\u5f53\u8005\u3084\u77e5\u8b58\u306e\u6d45\u3044\u7ba1\u7406\u8005\u304c\u5bfe\u5fdc\u3059\u308b\u3053\u3068\u3067\u3001\u88ab\u5bb3\u304c\u62e1\u5927\u3059\u308b\u30b1\u30fc\u30b9\u3082\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u5bfe\u7b56\u3092\u758e\u304b\u306b\u3059\u308b\u3068\u3001\u8fc5\u901f\u306a\u5bfe\u5fdc\u304c\u3067\u304d\u306a\u3044<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3092\u6020\u3063\u305f\u5834\u5408\u3001\u7a81\u5982\u653b\u6483\u3092\u53d7\u3051\u3066\u5fa9\u65e7\u307e\u3067\u306b\u6570\u65e5\u301c\u6570\u9031\u9593\u3092\u8981\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u610f\u8b58\u304c\u4f4e\u3044\u30ec\u30c3\u30c6\u30eb\u8cbc\u3089\u308c\u308b<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">\u30b5\u30a4\u30c8\u3084\u30b5\u30fc\u30d3\u30b9\u306e\u5229\u7528\u8005\u306b\u8ff7\u60d1\u304c\u751f\u3058\u308b\u3068\u3001\u4f01\u696d\u30fb\u30b5\u30fc\u30d3\u30b9\u30a4\u30e1\u30fc\u30b8\u306e\u4f4e\u4e0b\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u306f\u3001\u767a\u751f\u3057\u3066\u304b\u3089\u5bfe\u7b56\u3057\u3066\u3082\u5f8c\u306e\u796d\u308a\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u3001\u4e8b\u524d\u306e\u5099\u3048\u304c\u5fc5\u8981\u3067\u3059\u3002<\/span><\/p>\n<h2 id=\"toc_id5\"  class=\"style3a\"><span id=\"DDoS-4\"><strong>DDoS\u653b\u6483\u306e\u76ee\u7684<\/strong><\/span><\/h2>\n<img decoding=\"async\" class=\"size-full wp-image-15056 aligncenter\" src=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image3.jpg\" alt=\"\" width=\"640\" height=\"427\" srcset=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image3.jpg 640w, https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image3-300x200.jpg 300w, https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image3-485x324.jpg 485w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/>\n<p><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u306f\u5358\u306a\u308b\u8ff7\u60d1\u884c\u70ba\u3067\u306f\u306a\u304f\u3001\u660e\u78ba\u306a\u76ee\u7684\u3084\u52d5\u6a5f\u3092\u3082\u3063\u3066\u884c\u308f\u308c\u308b\u30b1\u30fc\u30b9\u304c\u307b\u3068\u3093\u3069\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u653b\u6483\u8005\u306e\u76ee\u7684\u3092\u77e5\u3063\u3066\u304a\u3051\u3070\u3001DDoS\u653b\u6483\u306e\u5bfe\u7b56\u3092\u8b1b\u3058\u3089\u308c\u308b\u305f\u3081\u3001\u4e3b\u306a\u76ee\u7684\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u7af6\u5408\u4ed6\u793e\u306b\u3088\u308b\u55b6\u696d\u59a8\u5bb3<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u91d1\u92ad\u76ee\u7684<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u4f01\u696d\u3084\u7d44\u7e54\u3078\u306e\u6297\u8b70\u30fb\u4e3b\u5f35<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u5acc\u304c\u3089\u305b\u30fb\u6109\u5feb\u72af\u7684\u306a\u653b\u6483<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u4ed6\u306e\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u306e\u30ab\u30e2\u30d5\u30e9\u30fc\u30b8\u30e5<\/span><\/li>\n<\/ul>\n<h3 id=\"toc_id6\" ><span id=\"i\"><span style=\"font-weight: 400;\">\u7af6\u5408\u4ed6\u793e\u306b\u3088\u308b\u55b6\u696d\u59a8\u5bb3<\/span><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u306f\u3001\u653b\u6483\u5bfe\u8c61\u306e\u30b5\u30fc\u30d0\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30fbWeb\u30b5\u30a4\u30c8\u306a\u3069\u306b\u904e\u5270\u306a\u8ca0\u8377\u3092\u304b\u3051\u3001\u6b63\u5e38\u306b\u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3067\u304d\u306a\u304f\u3059\u308b\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u4e0d\u6b63\u884c\u70ba\u3068\u3057\u3066\u6cd5\u5f8b\u306b\u3082\u62b5\u89e6\u3057\u307e\u3059\u304c\u3001\u7af6\u5408\u4ed6\u793e\u306b\u3088\u308bDDoS\u653b\u6483\u3082\u5b58\u5728\u3057\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u306b\u3088\u3063\u3066\u3001\u7af6\u5408\u306e\u30b5\u30fc\u30d3\u30b9\u63d0\u4f9b\u3092\u505c\u6b62\u3055\u305b\u308c\u3070\u3001\u81ea\u793e\u306e\u30b5\u30fc\u30d3\u30b9\u3078\u6d41\u52d5\u3055\u305b\u3089\u308c\u308b\u305f\u3081\u3001\u55b6\u696d\u59a8\u5bb3\u3084\u30b5\u30fc\u30d3\u30b9\u505c\u6b62\u3092\u76ee\u7684\u3068\u3057\u3066\u653b\u6483\u3057\u3066\u304f\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002\u4e3b\u306b\u3001\u30a2\u30af\u30bb\u30b9\u6570\u304c\u53ce\u76ca\u306b\u76f4\u7d50\u3059\u308bEC\u30b5\u30a4\u30c8\u30fb\u4e88\u7d04\u30b5\u30a4\u30c8\u30fbWeb\u30e1\u30c7\u30a3\u30a2\u904b\u55b6\u4f1a\u793e\u306a\u3069\u3067\u3001\u91cd\u8981\u306a\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u3084\u30bb\u30fc\u30eb\u671f\u9593\u4e2d\u306b\u30b5\u30fc\u30d3\u30b9\u30c0\u30a6\u30f3\u3092\u76ee\u7684\u3068\u3057\u3066\u5b9f\u65bd\u3055\u308c\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u793e\u5185\u306b\u5c02\u9580\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u62c5\u5f53\u8005\u304c\u3044\u306a\u304b\u3063\u305f\u308a\u3001\u5916\u6ce8\u306e\u30b7\u30b9\u30c6\u30e0\u7ba1\u7406\u696d\u8005\u306b\u4efb\u305b\u304d\u308a\u3067\u60c5\u5831\u304c\u4e0d\u8db3\u3057\u3066\u3044\u305f\u308a\u3001\u672a\u7d4c\u9a13\u8005\u3084\u30b9\u30ad\u30eb\u4e0d\u8db3\u306e\u4eba\u6750\u304c\u4fdd\u5b88\u3092\u62c5\u5f53\u3057\u3066\u3044\u305f\u308a\u3059\u308b\u3068\u3001DDoS\u653b\u6483\u306b\u5bfe\u3057\u3066\u7121\u9632\u5099\u3067\u88ab\u5bb3\u304c\u60aa\u5316\u3057\u3084\u3059\u3044\u306e\u3067\u8981\u6ce8\u610f\u3067\u3059\u3002<\/span><\/p>\n<h3 id=\"toc_id7\" ><span id=\"i-2\"><span style=\"font-weight: 400;\">\u91d1\u92ad\u76ee\u7684<\/span><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u91d1\u92ad\u76ee\u7684\u306e\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u306f\u6570\u591a\u304f\u5b58\u5728\u3057\u307e\u3059\u304c\u3001DDoS\u653b\u6483\u3082\u4f8b\u5916\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u653b\u6483\u8005\u306f\u30b5\u30fc\u30d3\u30b9\u3092\u505c\u6b62\u3055\u305b\u305f\u5f8c\u306b\u3001\u300c\u653b\u6483\u3092\u3084\u3081\u3066\u307b\u3057\u3051\u308c\u3070\u8eab\u4ee3\u91d1\u3092\u6255\u3048\u300d\u3068\u30e9\u30f3\u30b5\u30e0DDoS\uff08RDoS\uff09\u3092\u4ed5\u639b\u3051\u3066\u304f\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u4f8b\u3048\u3070\u3001\u4eee\u60f3\u901a\u8ca8\u53d6\u5f15\u6240\u3078DDoS\u653b\u6483\u3092\u4ed5\u639b\u3051\u3001\u6570\u5343\u4e07\u5186\u306e\u30d3\u30c3\u30c8\u30b3\u30a4\u30f3\u3092\u8981\u6c42\u3057\u305f\u308a\u3001\u533b\u7642\u6a5f\u95a2\u3078\u653b\u6483\u3057\u3066\u304b\u3089\u30c7\u30fc\u30bf\u5fa9\u65e7\u306e\u540d\u76ee\u3067\u8eab\u4ee3\u91d1\u3092\u8acb\u6c42\u3057\u305f\u308a\u306a\u3069\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u4e8b\u524d\u306bWAF\u5c0e\u5165\u3084CDN\u6d3b\u7528\u306a\u3069\u306eDDoS\u653b\u6483\u5bfe\u7b56\u3092\u3057\u3066\u3044\u306a\u3044\u4f01\u696d\u307b\u3069\u3001\u91d1\u92ad\u3092\u5f97\u3084\u3059\u3044\u3068\u5224\u65ad\u3055\u308c\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u3055\u308c\u308b\u50be\u5411\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<h3 id=\"toc_id8\" ><span id=\"i-3\"><span style=\"font-weight: 400;\">\u4f01\u696d\u3084\u7d44\u7e54\u3078\u306e\u6297\u8b70\u30fb\u4e3b\u5f35<\/span><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u4f01\u696d\u306e\u30b5\u30fc\u30d3\u30b9\u505c\u6b62\u3084\u91d1\u92ad\u76ee\u7684\u3060\u3051\u3067\u306a\u304f\u3001\u653f\u6cbb\u7684\u30fb\u793e\u4f1a\u7684\u4e3b\u5f35\u3092\u76ee\u7684\u3068\u3057\u305fDDoS\u653b\u6483\u3082\u591a\u767a\u3057\u3066\u3044\u307e\u3059\u3002\u6297\u8b70\u30fb\u4e3b\u5f35\u3092\u76ee\u7684\u3068\u3057\u305fDDoS\u653b\u6483\u306f\u3001\u300c\u30cf\u30af\u30c6\u30a3\u30d3\u30ba\u30e0\uff08Hacktivism\uff09\u300d\u3068\u547c\u3070\u308c\u3001\u653f\u5e9c\u6a5f\u95a2\u3084\u30de\u30b9\u30e1\u30c7\u30a3\u30a2\u30fb\u5927\u624b\u4f01\u696d\u304c\u6a19\u7684\u306b\u306a\u308a\u3084\u3059\u3044\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u4f8b\u3048\u3070\u3001\u74b0\u5883\u56e3\u4f53\u304c\u77f3\u6cb9\u4f01\u696d\u306e\u30b5\u30a4\u30c8\u3092\u653b\u6483\u3057\u305f\u308a\u3001\u6d77\u5916\u306e\u653f\u6cbb\u56e3\u4f53\u304c\u65e5\u672c\u306e\u516c\u7684\u6a5f\u95a2\u30b5\u30a4\u30c8\u3092\u4e00\u6642\u505c\u6b62\u3055\u305b\u305f\u308a\u3068\u3001\u30b5\u30a4\u30d0\u30fc\u7a7a\u9593\u306b\u304a\u3051\u308b\u30c7\u30e2\u884c\u70ba\u3082\u8d77\u304d\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u307e\u305f\u3001\u7d44\u7e54\u3084\u4f01\u696d\u3078\u306e\u4e0d\u6e80\u3084\u30af\u30ec\u30fc\u30e0\u304c\u30a8\u30b9\u30ab\u30ec\u30fc\u30c8\u3057\u3066\u3001DDoS\u653b\u6483\u306b\u767a\u5c55\u3059\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<h3 id=\"toc_id9\" ><span id=\"i-4\"><span style=\"font-weight: 400;\">\u5acc\u304c\u3089\u305b\u30fb\u6109\u5feb\u72af\u7684\u306a\u653b\u6483<\/span><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u610f\u5916\u3068\u591a\u3044\u306e\u304c\u3001\u500b\u4eba\u7684\u306a\u6068\u307f\u3084\u5acc\u304c\u3089\u305b\u3001\u6109\u5feb\u72af\u306b\u3088\u308bDDoS\u653b\u6483\u3067\u3059\u3002\u4e3b\u306a\u30bf\u30fc\u30b2\u30c3\u30c8\u306f\u3001\u500b\u4eba\u904b\u55b6\u306e\u30d6\u30ed\u30b0\u3084SNS\u30a2\u30ab\u30a6\u30f3\u30c8\u3001\u30d5\u30ea\u30fc\u30e9\u30f3\u30b9\u306e\u30dd\u30fc\u30c8\u30d5\u30a9\u30ea\u30aa\u30b5\u30a4\u30c8\u306a\u3069\u3001\u6bd4\u8f03\u7684\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u624b\u8584\u306a\u500b\u4eba\u30b5\u30a4\u30c8\u306b\u591a\u304f\u898b\u3089\u308c\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u5177\u4f53\u7684\u306b\u306f\u3001\u533f\u540d\u63b2\u793a\u677f\u3067\u8ab9\u8b17\u4e2d\u50b7\u3055\u308c\u305f\u76f8\u624b\u306e\u30d6\u30ed\u30b0\u3092\u653b\u6483\u3057\u305f\u308a\u3001SNS\u306e\u708e\u4e0a\u4e8b\u4ef6\u306b\u4fbf\u4e57\u3057\u3066\u7279\u5b9a\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u653b\u6483\u3057\u305f\u308a\u3068\u3001\u500b\u4eba\u306b\u5bfe\u3059\u308b\u5acc\u304c\u3089\u305b\u3084\u6109\u5feb\u72af\u7684\u306a\u653b\u6483\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u307e\u305f\u3001\u500b\u4eba\u3060\u3051\u3067\u306a\u304f\u30cb\u30e5\u30fc\u30b9\u3084SNS\u3067\u708e\u4e0a\u3057\u305f\u4f01\u696d\u3084\u56e3\u4f53\u306b\u5bfe\u3057\u3066\u3001\u6109\u5feb\u72af\u7684\u306a\u52d5\u6a5f\u3067DDoS\u653b\u6483\u3092\u4ed5\u639b\u3051\u308b\u30b1\u30fc\u30b9\u3082\u5b58\u5728\u3057\u307e\u3059\u3002<\/span><\/p>\n<h3 id=\"toc_id10\" ><span id=\"i-5\"><span style=\"font-weight: 400;\">\u4ed6\u306e\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u306e\u30ab\u30e2\u30d5\u30e9\u30fc\u30b8\u30e5<\/span><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u306f\u3001\u4ed6\u306e\u653b\u6483\u3092\u96a0\u3059\u305f\u3081\u306e\u967d\u52d5\uff08\u30ab\u30e2\u30d5\u30e9\u30fc\u30b8\u30e5\uff09\u3068\u3057\u3066\u4f7f\u308f\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002DDoS\u653b\u6483\u306e\u7279\u6027\u4e0a\u3001\u653b\u6483\u8005\u306f\u5927\u91cf\u306e\u30a2\u30af\u30bb\u30b9\u3067\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c1\u30fc\u30e0\u306e\u6ce8\u610f\u3092\u305d\u3089\u305b\u308b\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u653b\u6483\u3092\u4ed5\u639b\u3051\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u500b\u4eba\u60c5\u5831\u306e\u76d7\u96e3\uff08\u60c5\u5831\u6f0f\u3048\u3044\uff09<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u7ba1\u7406\u8005\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u4e57\u3063\u53d6\u308a<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u30b5\u30fc\u30d0\u3078\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u8a2d\u7f6e<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">\u4ed6\u306e\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u3078\u306e\u30ab\u30e2\u30d5\u30e9\u30fc\u30b8\u30e5\u3068\u3057\u3066DDoS\u653b\u6483\u3092\u4ed5\u639b\u3051\u308b\u653b\u6483\u8005\u306f\u3001\u9ad8\u5ea6\u306a\u30b9\u30ad\u30eb\u3092\u6301\u3063\u3066\u3044\u308b\u30b1\u30fc\u30b9\u304c\u591a\u304f\u3001\u521d\u5fc3\u8005\u304c\u904b\u7528\u3057\u3066\u3044\u308b\u30b5\u30a4\u30c8\u3084\u3001\u5c0f\u898f\u6a21\u4e8b\u696d\u8005\u306eWeb\u30b5\u30fc\u30d3\u30b9\u304c\u72d9\u308f\u308c\u3084\u3059\u3044\u50be\u5411\u3067\u3059\u3002<\/span><\/p>\n<h2 id=\"toc_id11\"  class=\"style3a\"><span id=\"DDoS-5\"><strong>DDoS\u653b\u6483\u306e\u7a2e\u985e<\/strong><\/span><\/h2>\n<img decoding=\"async\" class=\"size-full wp-image-15057 aligncenter\" src=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image4.jpg\" alt=\"\" width=\"640\" height=\"427\" srcset=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image4.jpg 640w, https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image4-300x200.jpg 300w, https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image4-485x324.jpg 485w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/>\n<p><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u306b\u306f\u3055\u307e\u3056\u307e\u306a\u624b\u6cd5\u304c\u3042\u308a\u3001\u305d\u308c\u305e\u308c\u7570\u306a\u308b\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb\u3084\u5f31\u70b9\u3092\u7a81\u304d\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u306e\u30b7\u30b9\u30c6\u30e0\u3092\u6a5f\u80fd\u4e0d\u5168\u306b\u8ffd\u3044\u8fbc\u307f\u307e\u3059\u3002\u4ee3\u8868\u7684\u306aDDoS\u653b\u6483\u306e\u7a2e\u985e\u306f\u3001\u4e0b\u8a18\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">SYN\u30d5\u30e9\u30c3\u30c9\u653b\u6483\u30fbFIN\u30d5\u30e9\u30c3\u30c9\u653b\u6483<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">ACK\u30d5\u30e9\u30c3\u30c9\u653b\u6483<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">UDP\u30d5\u30e9\u30c3\u30c9\u653b\u6483<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">DNS\u30d5\u30e9\u30c3\u30c9\u653b\u6483<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">HTTP GET\/POST Flood\u653b\u6483<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Slow HTTP DoS Attack<\/span><\/li>\n<\/ul>\n<h3 id=\"toc_id12\" ><span id=\"SYNFIN\"><span style=\"font-weight: 400;\">SYN\u30d5\u30e9\u30c3\u30c9\u653b\u6483\u30fbFIN\u30d5\u30e9\u30c3\u30c9\u653b\u6483<\/span><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">SYN\u30d5\u30e9\u30c3\u30c9\u653b\u6483\u30fbFIN\u30d5\u30e9\u30c3\u30c9\u653b\u6483\u306f\u3001SYN\uff08\u63a5\u7d9a\u8981\u6c42\uff09\u3068FIN\uff08\u5207\u65ad\u8981\u6c42\uff09\u306e\u901a\u4fe1\u624b\u9806\u306b\u3088\u308a\u30b5\u30fc\u30d0\u3078\u8ca0\u8377\u3092\u304b\u3051\u308b\u653b\u6483\u624b\u6cd5\u3067\u3059\u3002\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u901a\u4fe1\u3067\u306f\u3001\u307e\u305a\u300cSYN\uff08\u540c\u671f\uff09\u30d1\u30b1\u30c3\u30c8\u300d\u3092\u4f7f\u3063\u3066\u63a5\u7d9a\u8981\u6c42\u3092\u9001\u308a\u307e\u3059\u3002SYN\u30d5\u30e9\u30c3\u30c9\u653b\u6483\u306f\u3001\u5927\u91cf\u306eSYN\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u308a\u3064\u3051\u3066\u30b5\u30fc\u30d0\u306e\u63a5\u7d9a\u5f85\u3061\u72b6\u614b\u3092\u98fd\u548c\u3055\u305b\u3001\u6b63\u5e38\u306a\u901a\u4fe1\u3092\u3067\u304d\u306a\u304f\u3059\u308b\u653b\u6483\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u5bfe\u3057\u3066\u3001FIN\u30d5\u30e9\u30c3\u30c9\u653b\u6483\u3068\u306f\u901a\u4fe1\u7d42\u4e86\u6642\u306b\u9001\u4fe1\u3055\u308c\u308b\u300cFIN\u30d1\u30b1\u30c3\u30c8\u300d\u3092\u5927\u91cf\u306b\u9001\u308a\u3001\u7570\u5e38\u306a\u7d42\u4e86\u51e6\u7406\u3092\u30b5\u30fc\u30d0\u306b\u5f37\u5236\u3057\u3001\u30ea\u30bd\u30fc\u30b9\u3092\u6d6a\u8cbb\u3055\u305b\u308b\u653b\u6483\u3067\u3059\u3002<\/span><\/p>\n<h3 id=\"toc_id13\" ><span id=\"ACK\"><span style=\"font-weight: 400;\">ACK\u30d5\u30e9\u30c3\u30c9\u653b\u6483<\/span><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">ACK\uff08Acknowledgment\uff09\u30d5\u30e9\u30c3\u30c9\u653b\u6483\u306f\u3001TCP\u901a\u4fe1\u306b\u304a\u3051\u308b\u300c\u53d7\u4fe1\u78ba\u8a8d\u5fdc\u7b54\uff08ACK\uff09\u300d\u30d1\u30b1\u30c3\u30c8\u3092\u5927\u91cf\u306b\u9001\u4fe1\u3059\u308b\u3053\u3068\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6a5f\u5668\u3084\u30b5\u30fc\u30d0\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u67af\u6e07\u3055\u305b\u3001\u30b5\u30fc\u30d3\u30b9\u306e\u5fdc\u7b54\u3092\u4f4e\u4e0b\u30fb\u505c\u6b62\u3055\u305b\u308bDDoS\u653b\u6483\u306e\u4e00\u7a2e\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u672c\u6765ACK\u30d1\u30b1\u30c3\u30c8\u306f\u3001\u901a\u4fe1\u76f8\u624b\u304b\u3089\u306e\u30c7\u30fc\u30bf\u3092\u6b63\u3057\u304f\u53d7\u3051\u53d6\u3063\u305f\u65e8\u3092\u77e5\u3089\u305b\u308b\u5f79\u5272\u3092\u6301\u3061\u3001\u901a\u5e38\u306e\u3084\u308a\u53d6\u308a\u3067\u983b\u7e41\u306b\u9001\u53d7\u4fe1\u3055\u308c\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001ACK\u30d5\u30e9\u30c3\u30c9\u653b\u6483\u3067\u306f\u30d1\u30b1\u30c3\u30c8\u306e\u5185\u5bb9\u81ea\u4f53\u304c\u6b63\u898f\u306b\u898b\u3048\u308b\u305f\u3081\u3001\u5f93\u6765\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u5668\u3067\u306f\u4e0d\u6b63\u306a\u901a\u4fe1\u3068\u3057\u3066\u8a8d\u8b58\u3055\u308c\u306b\u304f\u304f\u3001\u9632\u5fa1\u304c\u96e3\u3057\u3044\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u307e\u305f\u3001ACK\u30d5\u30e9\u30c3\u30c9\u306fSYN\u30d5\u30e9\u30c3\u30c9\u653b\u6483\u306e\u3088\u3046\u306a\u63a5\u7d9a\u78ba\u7acb\u8981\u6c42\u3067\u306f\u306a\u304f\u3001\u300c\u78ba\u7acb\u6e08\u307f\u306e\u63a5\u7d9a\u300d\u3092\u88c5\u3063\u3066\u884c\u308f\u308c\u308b\u305f\u3081\u3001\u901a\u4fe1\u306e\u8ffd\u8de1\u3084\u906e\u65ad\u304c\u3055\u3089\u306b\u56f0\u96e3\u3067\u3059\u3002<\/span><\/p>\n<h3 id=\"toc_id14\" ><span id=\"UDP\"><span style=\"font-weight: 400;\">UDP\u30d5\u30e9\u30c3\u30c9\u653b\u6483<\/span><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">UDP\uff08\u30e6\u30fc\u30b6\u30fc\u30c7\u30fc\u30bf\u30b0\u30e9\u30e0\u30d7\u30ed\u30c8\u30b3\u30eb\uff09\u306f\u3001\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30ec\u30b9\u3067\u8efd\u91cf\u306a\u901a\u4fe1\u65b9\u5f0f\u3067\u3059\u3002UDP\u30d5\u30e9\u30c3\u30c9\u653b\u6483\u3067\u306f\u3001\u7121\u5dee\u5225\u306bUDP\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u308a\u3064\u3051\u3066\u3001\u30b5\u30fc\u30d0\u5074\u306b\u5927\u91cf\u306e\u5fdc\u7b54\u51e6\u7406\u3092\u5f37\u8981\u3057\u307e\u3059\u3002UDP\u30d5\u30e9\u30c3\u30c9\u653b\u6483\u306b\u306f\u3001\u4e3b\u306b\u4e0b\u8a18\u306e2\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u30e9\u30f3\u30c0\u30e0\u30fb\u30dd\u30fc\u30c8\u30fb\u30d5\u30e9\u30c3\u30c9\u653b\u6483<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">\u30bf\u30fc\u30b2\u30c3\u30c8\u306e\u30b5\u30fc\u30d0\u306b\u5bfe\u3057\u3066\u3001\u30e9\u30f3\u30c0\u30e0\u306a\u30dd\u30fc\u30c8\u756a\u53f7\u306b\u5411\u3051\u3066UDP\u30d1\u30b1\u30c3\u30c8\u3092\u5927\u91cf\u306b\u9001\u4fe1\u3057\u307e\u3059\u3002\u30b5\u30fc\u30d0\u306f\u5404\u30d1\u30b1\u30c3\u30c8\u306b\u5bfe\u3057\u3066\u300c\u3053\u306e\u30dd\u30fc\u30c8\u306f\u958b\u3044\u3066\u3044\u307e\u305b\u3093\u300d\u3068ICMP\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8fd4\u3059\u5fc5\u8981\u304c\u3042\u308a\u3001\u305d\u306e\u51e6\u7406\u304c\u7e70\u308a\u8fd4\u3055\u308c\u308b\u3053\u3068\u3067\u30b5\u30fc\u30d0\u306e\u8ca0\u8377\u304c\u6025\u5897\u3057\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u653b\u6483\uff08UDP Fragmentation Attack\uff09<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">\u610f\u56f3\u7684\u306b\u5206\u5272\u3055\u308c\u305fUDP\u30d1\u30b1\u30c3\u30c8\uff08\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\uff09\u3092\u9001\u4fe1\u3057\u3001\u30b5\u30fc\u30d0\u306b\u518d\u69cb\u7bc9\u51e6\u7406\u3092\u5f37\u8981\u3055\u305b\u307e\u3059\u3002\u591a\u304f\u306e\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u304c\u610f\u56f3\u7684\u306b\u7834\u640d\u30fb\u6b20\u843d\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u518d\u69cb\u7bc9\u51e6\u7406\u304c\u5931\u6557\u3057\u7d9a\u3051\u3001\u30ea\u30bd\u30fc\u30b9\u3092\u6d6a\u8cbb\u3055\u305b\u308b\u653b\u6483\u3067\u3059\u3002<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">\u3069\u3061\u3089\u306e\u624b\u6cd5\u3082\u3001\u6b63\u5e38\u306a\u901a\u4fe1\u306b\u898b\u305b\u304b\u3051\u3066\u51e6\u7406\u3092\u59a8\u5bb3\u3059\u308b\u305f\u3081\u3001\u691c\u77e5\u3084\u30d6\u30ed\u30c3\u30af\u304c\u96e3\u3057\u3044\u3067\u3059\u3002<\/span><\/p>\n<h3 id=\"toc_id15\" ><span id=\"DNS\"><span style=\"font-weight: 400;\">DNS\u30d5\u30e9\u30c3\u30c9\u653b\u6483<\/span><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">DNS\uff08Domain Name System\uff09\u30d5\u30e9\u30c3\u30c9\u653b\u6483\u306f\u3001Web\u30b5\u30a4\u30c8\u306e\u30a2\u30af\u30bb\u30b9\u306b\u4e0d\u53ef\u6b20\u306a\u300c\u30c9\u30e1\u30a4\u30f3\u540d\u306e\u540d\u524d\u89e3\u6c7a\u30b7\u30b9\u30c6\u30e0\u300d\u3092\u6a19\u7684\u3068\u3059\u308bDDoS\u653b\u6483\u3067\u3059\u3002\u653b\u6483\u8005\u306f\u3001\u5927\u91cf\u306eDNS\u30ea\u30af\u30a8\u30b9\u30c8\u3092DNS\u30b5\u30fc\u30d0\u306b\u5bfe\u3057\u3066\u4e00\u6589\u306b\u9001\u4fe1\u3057\u3001\u540d\u524d\u89e3\u6c7a\u51e6\u7406\u3092\u904e\u8ca0\u8377\u72b6\u614b\u306b\u3057\u3066\u5fdc\u7b54\u4e0d\u80fd\u306b\u3055\u305b\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">DNS\u304c\u505c\u6b62\u3059\u308b\u3068\u3001Web\u30b5\u30a4\u30c8\u305d\u306e\u3082\u306e\u304c\u300c\u5b58\u5728\u3057\u306a\u3044\u300d\u3088\u3046\u306b\u898b\u3048\u3066\u3057\u307e\u3046\u305f\u3081\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u63a5\u7d9a\u3059\u3089\u3067\u304d\u307e\u305b\u3093\u3002\u3064\u307e\u308a\u3001\u8868\u5411\u304d\u306b\u306f\u30b5\u30fc\u30d0\u306b\u7570\u5e38\u304c\u306a\u3044\u306b\u3082\u95a2\u308f\u3089\u305a\u3001\u30b5\u30fc\u30d3\u30b9\u304c\u505c\u6b62\u72b6\u614b\u306b\u306a\u308b\u306e\u3067\u3059\u3002<\/span><\/p>\n<h3 id=\"toc_id16\" ><span id=\"HTTP_GETPOST_Flood\"><span style=\"font-weight: 400;\">HTTP GET\/POST Flood\u653b\u6483<\/span><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">HTTP GET\/POST Flood\u653b\u6483\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u3092\u72d9\u3063\u305fDDoS\u653b\u6483\u306e\u4ee3\u8868\u683c\u3067\u3001Web\u30b5\u30fc\u30d0\u306b\u6b63\u898f\u306e\u5f62\u5f0f\u3092\u88c5\u3063\u305f\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u5927\u91cf\u306b\u9001\u4fe1\u3057\u3066\u3001\u51e6\u7406\u80fd\u529b\u3092\u9650\u754c\u306b\u9054\u3055\u305b\u3001\u30b5\u30fc\u30d3\u30b9\u30c0\u30a6\u30f3\u3092\u72d9\u3046\u653b\u6483\u624b\u6cd5\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u3069\u3061\u3089\u3082\u30d6\u30e9\u30a6\u30b6\u3068Web\u30b5\u30fc\u30d0\u9593\u3067\u60c5\u5831\u3092\u3084\u308a\u53d6\u308a\u3059\u308b\u305f\u3081\u306e\u901a\u4fe1\u898f\u683cHTTP\uff08Hyper Text Transfer Protocol\uff09\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u5bfe\u8c61\u3068\u3057\u305f\u653b\u6483\u3067\u3059\u304c\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306a\u9055\u3044\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">HTTP GET Flood\u653b\u6483<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">\u753b\u50cf\u30fbHTML\u30fbCSS\u306a\u3069\u9759\u7684\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u53d6\u5f97\u8981\u6c42\u3092\u9023\u7d9a\u3057\u3066\u9001\u308b<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">HTTP POST Flood\u653b\u6483<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u306e\u3088\u3046\u306a\u51e6\u7406\u8ca0\u8377\u306e\u30ed\u30b0\u30a4\u30f3\u30fb\u6ce8\u6587\u51e6\u7406\u306a\u3069\u9ad8\u8ca0\u8377\u306a\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9023\u767a\u3055\u305b\u308b<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">HTTP GET\/POST Flood\u653b\u6483\u306f\u3001\u4e00\u898b\u3059\u308b\u3068\u901a\u5e38\u306e\u30a2\u30af\u30bb\u30b9\u3068\u898b\u5206\u3051\u304c\u3064\u304b\u306a\u3044\u305f\u3081\u3001\u5f93\u6765\u578b\u306e\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3067\u306f\u5bfe\u51e6\u304c\u96e3\u3057\u3044\u554f\u984c\u70b9\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u30a2\u30af\u30bb\u30b9\u5143\u304c\u30dc\u30c3\u30c8\u30cd\u30c3\u30c8\u306a\u3069\u3067\u5206\u6563\u3055\u308c\u3066\u3044\u308b\u3068\u3001IP\u5236\u9650\u3059\u3089\u7121\u529b\u306b\u306a\u308b\u305f\u3081\u691c\u77e5\u304c\u96e3\u3057\u3044\u3067\u3059\u3002<\/span><\/p>\n<h3 id=\"toc_id17\" ><span id=\"Slow_HTTP_DoS_Attack\"><span style=\"font-weight: 400;\">Slow HTTP DoS Attack<\/span><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Slow HTTP DoS\uff08\u30b9\u30ed\u30fcHTTP\u653b\u6483\uff09\u306f\u3001\u3042\u3048\u3066\u901a\u4fe1\u3092\u300c\u6975\u7aef\u306b\u9045\u304f\u300d\u884c\u3046\u3053\u3068\u3067\u3001Web\u30b5\u30fc\u30d0\u306b\u5bfe\u3057\u3066\u7121\u99c4\u306a\u63a5\u7d9a\u3092\u7dad\u6301\u3055\u305b\u3001\u540c\u6642\u63a5\u7d9a\u6570\u306e\u4e0a\u9650\u9054\u6210\u3092\u72d9\u3046DDoS\u653b\u6483\u3067\u3059\u3002\u4e3b\u306a\u624b\u6cd5\u306f\u3001\u4e0b\u8a18\u306e3\u7a2e\u985e\u3067\u3059\u3002<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Slowloris\u653b\u6483<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">HTTP\u30d8\u30c3\u30c0\u30fc\u3092\u65ad\u7d9a\u7684\u306b\u9001\u3063\u3066\u63a5\u7d9a\u3092\u9577\u6642\u9593\u4fdd\u6301\u3059\u308b<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Slow POST\u653b\u6483<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">POST\u30c7\u30fc\u30bf\u306e\u9001\u4fe1\u3092\u5c11\u3057\u305a\u3064\u884c\u3044\u3001\u5fdc\u7b54\u3092\u9045\u3089\u305b\u308b<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Slow Read\u653b\u6483<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">\u30b5\u30fc\u30d0\u304b\u3089\u9001\u4fe1\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3092\u4f4e\u901f\u3067\u8aad\u307f\u53d6\u308a\u3001\u5fdc\u7b54\u6642\u9593\u3092\u5f15\u304d\u5ef6\u3070\u3059<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Slow HTTP DoS Attack\u3067\u306f\u3001\u30b5\u30fc\u30d0\u304c\u300c\u6b63\u898f\u30e6\u30fc\u30b6\u30fc\u304c\u5165\u529b\u3092\u5b8c\u4e86\u3057\u3066\u3044\u306a\u3044\u3060\u3051\u300d\u3068\u8aa4\u89e3\u3057\u3001\u63a5\u7d9a\u3092\u5207\u308c\u307e\u305b\u3093\u3002\u7d50\u679c\u7684\u306b\u3001\u65b0\u305f\u306a\u63a5\u7d9a\u304c\u3067\u304d\u306a\u304f\u306a\u308a\u3001\u6b63\u898f\u30e6\u30fc\u30b6\u30fc\u306e\u30a2\u30af\u30bb\u30b9\u304c\u906e\u65ad\u3055\u308c\u307e\u3059\u3002<\/span><\/p>\n<h2 id=\"toc_id18\"  class=\"style3a\"><span id=\"DDoS-6\">DDoS\u653b\u6483\u5bfe\u7b56\u304c\u300c\u96e3\u3057\u3044\u300d\u3068\u8a00\u308f\u308c\u308b\u7406\u7531<\/span><\/h2>\n<img decoding=\"async\" class=\"size-full wp-image-15058 aligncenter\" src=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image5.jpg\" alt=\"\" width=\"640\" height=\"469\" srcset=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image5.jpg 640w, https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image5-300x220.jpg 300w, https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image5-485x355.jpg 485w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/>\n<p><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u306f\u3001\u6570\u3042\u308b\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u306e\u4e2d\u3067\u3082\u5bfe\u7b56\u304c\u96e3\u3057\u3044\u50be\u5411\u306b\u3042\u308a\u307e\u3059\u3002DDoS\u653b\u6483\u5bfe\u7b56\u304c\u96e3\u3057\u3044\u7406\u7531\u306f\u3001\u4e0b\u8a18\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u901a\u4fe1\u81ea\u4f53\u304c\u6b63\u898f\u306e\u5f62\u5f0f\u3067\u884c\u308f\u308c\u308b<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u653b\u6483\u5143\u304c\u4e16\u754c\u4e2d\u306b\u5206\u6563\u3055\u308c\u3066\u3044\u308b<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u653b\u6483\u306e\u7a2e\u985e\u304c\u591a\u5c90\u306b\u308f\u305f\u308a\u3001\u305d\u308c\u305e\u308c\u5bfe\u7b56\u304c\u7570\u306a\u308b<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u5bfe\u7b56\u306b\u9ad8\u5ea6\u306a\u30b9\u30ad\u30eb\u3084\u77e5\u8b58\u30fb\u30c4\u30fc\u30eb\u304c\u5fc5\u8981<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u306e\u591a\u304f\u306f\u3001\u6b63\u898f\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u7528\u3057\u3066\u901a\u4fe1\u3055\u308c\u308b\u305f\u3081\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3084\u30a2\u30f3\u30c1\u30a6\u30a4\u30eb\u30b9\u30bd\u30d5\u30c8\u3067\u306f\u300c\u4e0d\u6b63\u306a\u30a2\u30af\u30bb\u30b9\u300d\u3068\u3057\u3066\u691c\u77e5\u3057\u3065\u3089\u3044\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u3055\u3089\u306b\u3001DDoS\u653b\u6483\u3067\u306f\u3001\u30dc\u30c3\u30c8\u30cd\u30c3\u30c8\u3068\u547c\u3070\u308c\u308b\u4e16\u754c\u4e2d\u306e\u30c7\u30d0\u30a4\u30b9\u3092\u4f7f\u3063\u3066\u540c\u6642\u653b\u6483\u3092\u4ed5\u639b\u3051\u308b\u305f\u3081\u3001IP\u30a2\u30c9\u30ec\u30b9\u304c\u7121\u6570\u306b\u5206\u6563\u3057\u3066\u304a\u308a\u3001IP\u5236\u9650\u306a\u3069\u306e\u5358\u7d14\u306a\u9632\u5fa1\u7b56\u3067\u306f\u6301\u7d9a\u7684\u306a\u9632\u885b\u304c\u96e3\u3057\u304f\u306a\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u5148\u307b\u3069\u89e3\u8aac\u3057\u305f\u3068\u304a\u308a\u3001DDoS\u653b\u6483\u306b\u306f\u6570\u591a\u304f\u306e\u624b\u6cd5\u304c\u5b58\u5728\u3057\u3001\u305d\u308c\u305e\u308c\u306b\u9069\u3057\u305f\u5bfe\u7b56\u3082\u7570\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u3059\u3079\u3066\u306e\u653b\u6483\u306b\u4e00\u5f8b\u3067\u5bfe\u5fdc\u3067\u304d\u308b\u30c4\u30fc\u30eb\u3084\u4ed5\u7d44\u307f\u306f\u306a\u304f\u3001\u8907\u6570\u306e\u5bfe\u7b56\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u591a\u5c64\u9632\u5fa1\u304c\u6c42\u3081\u3089\u308c\u308b\u305f\u3081\u3001\u300c\u5bfe\u7b56\u304c\u96e3\u3057\u3044\u300d\u3068\u8a00\u308f\u308c\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u3092\u5bfe\u7b56\u3059\u308b\u306b\u306f\u3001\u4e00\u5b9a\u306e\u77e5\u8b58\u30fb\u30b9\u30ad\u30eb\u30fb\u30b3\u30b9\u30c8\u304c\u304b\u304b\u308b\u305f\u3081\u3001\u521d\u5fc3\u8005\u306b\u306f\u5bfe\u7b56\u304c\u96e3\u3057\u3044\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<h2 id=\"toc_id19\" ><span id=\"DDoS-7\"><strong>\u52b9\u679c\u7684\u306aDDoS\u653b\u6483\u5bfe\u7b56\u65b9\u6cd5<\/strong><\/span><\/h2>\n<img decoding=\"async\" class=\"size-full wp-image-15060 aligncenter\" src=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image7.jpg\" alt=\"\" width=\"640\" height=\"427\" srcset=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image7.jpg 640w, https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image7-300x200.jpg 300w, https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image7-485x324.jpg 485w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/>\n<p><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u306f\u9632\u3050\u306e\u304c\u96e3\u3057\u3044\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u3067\u3059\u304c\u3001\u6b63\u3057\u3044\u77e5\u8b58\u3068\u5bfe\u7b56\u3092\u8b1b\u3058\u308c\u3070\u3001\u30ea\u30b9\u30af\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3089\u308c\u307e\u3059\u3002\u4e0b\u8a18\u306e\u52b9\u679c\u7684\u306aDDoS\u653b\u6483\u5bfe\u7b56\u3092\u5b9f\u65bd\u3057\u3066\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3092\u5f37\u5316\u3057\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u76e3\u8996\u306e\u5f37\u5316<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u30fb\u30eb\u30fc\u30bf\u30fc\u306e\u9069\u5207\u306a\u8a2d\u5b9a<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u653b\u6483\u691c\u77e5\u30fb\u30a2\u30e9\u30fc\u30c8\u30b7\u30b9\u30c6\u30e0\u306e\u5c0e\u5165<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">WAF\uff08Web Application Firewall\uff09\u306e\u6d3b\u7528<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u5c02\u7528\u30c4\u30fc\u30eb\u30fb\u30b5\u30fc\u30d3\u30b9\u306e\u5229\u7528<\/span><\/li>\n<\/ul>\n<h3 id=\"toc_id20\" ><span id=\"i-6\"><span style=\"font-weight: 400;\">\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u76e3\u8996\u306e\u5f37\u5316<\/span><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u306e\u521d\u671f\u6bb5\u968e\u3067\u306f\u3001\u666e\u6bb5\u3068\u7570\u306a\u308b\u30a2\u30af\u30bb\u30b9\u304c\u767a\u751f\u3059\u308b\u305f\u3081\u3001\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u901a\u4fe1\u91cf\u3084\u63a5\u7d9a\u72b6\u6cc1\u3092\u76e3\u8996\u3059\u308b\u4f53\u5236\u3092\u6574\u3048\u307e\u3057\u3087\u3046\u3002\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u76e3\u8996\u3092\u5f37\u5316\u3059\u308b\u5177\u4f53\u7684\u306a\u65b9\u6cd5\u306f\u3001\u4e0b\u8a18\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u30b5\u30fc\u30d0\u76e3\u8996\u30c4\u30fc\u30eb\uff08Zabbix\u3001Nagios\u3001Datadog\u306a\u3069\uff09\u3067\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u91cf\u3092\u5e38\u6642\u30c1\u30a7\u30c3\u30af<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u7570\u5e38\u306a\u30d1\u30b1\u30c3\u30c8\u6570\u3084\u63a5\u7d9a\u8a66\u884c\u56de\u6570\u3092\u30ed\u30b0\u3067\u8a18\u9332<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u5e73\u5e38\u6642\u306e\u901a\u4fe1\u30d1\u30bf\u30fc\u30f3\u3092\u628a\u63e1\u3057\u3001\u57fa\u6e96\u5024\u3092\u8a2d\u5b9a<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u76e3\u8996\u306f\u3001\u672a\u7d4c\u9a13\u8005\u3067\u3082GUI\u3067\u64cd\u4f5c\u3067\u304d\u308b\u30c4\u30fc\u30eb\u3082\u591a\u304f\u3001\u672a\u7136\u306bDDoS\u653b\u6483\u3092\u691c\u77e5\u3059\u308b\u5bfe\u7b56\u3068\u3057\u3066\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/span><\/p>\n<h3 id=\"toc_id21\" ><span id=\"i-7\"><span style=\"font-weight: 400;\">\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u30fb\u30eb\u30fc\u30bf\u30fc\u306e\u9069\u5207\u306a\u8a2d\u5b9a<\/span><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u4f01\u696d\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6700\u524d\u7dda\u306b\u3042\u308b\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3084\u30eb\u30fc\u30bf\u30fc\u306e\u8a2d\u5b9a\u3092\u898b\u76f4\u3059\u3060\u3051\u3067\u3082\u3001DDoS\u653b\u6483\u306b\u5bfe\u3059\u308b\u57fa\u672c\u7684\u306a\u9632\u5fa1\u529b\u3092\u9ad8\u3081\u3089\u308c\u307e\u3059\u3002\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u30fb\u30eb\u30fc\u30bf\u30fc\u306e\u8a2d\u5b9a\u3092\u898b\u76f4\u3059\u969b\u306f\u3001\u4e0b\u8a18\u306e\u30dd\u30a4\u30f3\u30c8\u3092\u5b9f\u65bd\u3057\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u4e0d\u8981\u306a\u30dd\u30fc\u30c8\u306e\u9589\u9396<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">ICMP\u306e\u30ec\u30fc\u30c8\u5236\u9650<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u30d1\u30b1\u30c3\u30c8\u6570\u30fb\u63a5\u7d9a\u6570\u306b\u5fdc\u3058\u305f\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u30eb\u30fc\u30eb\u306e\u5c0e\u5165<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">\u591a\u304f\u306e\u4e2d\u5c0f\u4f01\u696d\u3067\u306f\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u521d\u671f\u8a2d\u5b9a\u306e\u307e\u307e\u4f7f\u7528\u3057\u3066\u3044\u308b\u30b1\u30fc\u30b9\u304c\u591a\u304f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30db\u30fc\u30eb\u306b\u306a\u308a\u3084\u3059\u3044\u306e\u304c\u73fe\u72b6\u3067\u3059\u3002\u8a2d\u5b9a\u3092\u898b\u76f4\u3059\u3060\u3051\u3067\u3082\u3001\u624b\u9045\u308c\u306b\u306a\u308b\u524d\u306bDDoS\u653b\u6483\u3092\u9632\u3050\u5bfe\u7b56\u3068\u3057\u3066\u6709\u52b9\u3067\u3059\u3002<\/span><\/p>\n<h3 id=\"toc_id22\" ><span id=\"i-8\"><span style=\"font-weight: 400;\">\u653b\u6483\u691c\u77e5\u30fb\u30a2\u30e9\u30fc\u30c8\u30b7\u30b9\u30c6\u30e0\u306e\u5c0e\u5165<\/span><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u7570\u5e38\u306a\u30a2\u30af\u30bb\u30b9\u3092\u5373\u6642\u306b\u5bdf\u77e5\u3067\u304d\u308b\u81ea\u52d5\u30a2\u30e9\u30fc\u30c8\u30b7\u30b9\u30c6\u30e0\u306e\u5c0e\u5165\u306f\u3001DDoS\u653b\u6483\u5bfe\u7b56\u306e\u4e2d\u3067\u3082\u52b9\u679c\u7684\u306a\u5bfe\u7b56\u3067\u3059\u3002\u4e3b\u306a\u653b\u6483\u691c\u77e5\u30fb\u30a2\u30e9\u30fc\u30c8\u30b7\u30b9\u30c6\u30e0\u306e\u4f8b\u306f\u3001\u4e0b\u8a18\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">AWS GuardDuty\uff08\u30af\u30e9\u30a6\u30c9\u74b0\u5883\u306e\u8105\u5a01\u691c\u77e5\uff09<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Suricata\uff08\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306eIDS\/IPS\uff09<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Cloudflare\u306eDDoS\u901a\u77e5\u6a5f\u80fd\uff08\u81ea\u52d5\u30d6\u30ed\u30c3\u30af\u3068\u540c\u6642\u306b\u30e1\u30fc\u30eb\u901a\u77e5\uff09<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">\u691c\u77e5\u306e\u9045\u308c\u304c\u88ab\u5bb3\u62e1\u5927\u3092\u62db\u304f\u305f\u3081\u3001\u653b\u6483\u691c\u77e5\u30fb\u30a2\u30e9\u30fc\u30c8\u30b7\u30b9\u30c6\u30e0\u3092\u5c0e\u5165\u3057\u3066\u3001\u65e9\u671f\u5bfe\u5fdc\u3057\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n<h3 id=\"toc_id23\" ><span id=\"WAFWeb_Application_Firewall\"><span style=\"font-weight: 400;\">WAF\uff08Web Application Firewall\uff09\u306e\u6d3b\u7528<\/span><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">WAF\uff08Web Application Firewall\uff09\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u306e\u653b\u6483\u3092\u9632\u3050\u305f\u3081\u306e\u9632\u5fa1\u58c1\u3067\u3059\u3002\u4e3b\u306b\u3001HTTP GET\/POST Flood\u3084SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306a\u3069\u306e\u653b\u6483\u306b\u5f37\u304f\u3001Web\u30b5\u30a4\u30c8\u3092\u5b88\u308b\u305f\u3081\u306b\u6b20\u304b\u305b\u306a\u3044\u5bfe\u7b56\u3067\u3059\u3002WAF\uff08Web Application Firewall\uff09\u3092\u6d3b\u7528\u3059\u308c\u3070\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306a\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u3092\u9632\u3052\u307e\u3059\u3002<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">HTTP Flood<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">XSS\uff08\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\uff09<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">\u4e3b\u306b\u30a2\u30d7\u30ea\u5c64\u3092\u653b\u6483\u3059\u308bDDoS\u653b\u6483\u306b\u6709\u52b9\u7684\u3067\u3001\u30af\u30e9\u30a6\u30c9\u578bWAF\u3067\u3042\u308c\u3070\u5c02\u9580\u77e5\u8b58\u304c\u306a\u304f\u3066\u3082\u6bd4\u8f03\u7684\u7c21\u5358\u306b\u5c0e\u5165\u30fb\u904b\u7528\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<h3 id=\"toc_id24\" ><span id=\"i-9\"><span style=\"font-weight: 400;\">\u5c02\u7528\u30c4\u30fc\u30eb\u30fb\u30b5\u30fc\u30d3\u30b9\u306e\u5229\u7528<\/span><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u306b\u7279\u5316\u3057\u305f\u9632\u5fa1\u30c4\u30fc\u30eb\u3084\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b5\u30fc\u30d3\u30b9\u3092\u6d3b\u7528\u3059\u308c\u3070\u3001\u78ba\u5b9f\u306b\u52b9\u679c\u7684\u306a\u5bfe\u7b56\u304c\u3067\u304d\u307e\u3059\u3002\u8fd1\u5e74\u3067\u306f\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306a\u672a\u7d4c\u9a13\u8005\u3067\u3082\u5c0e\u5165\u3057\u3084\u3059\u3044\u30af\u30e9\u30a6\u30c9\u578b\u306e\u30c4\u30fc\u30eb\u30fb\u30b5\u30fc\u30d3\u30b9\u304c\u5145\u5b9f\u3057\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Cloudflare<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">AWS Shield<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Akamai Kona Site Defender<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Radware DefensePro<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">\u30af\u30e9\u30a6\u30c9\u578b\u30b5\u30fc\u30d3\u30b9\u306f\u6708\u984d\u5236\u30fb\u5f93\u91cf\u8ab2\u91d1\u578b\u304c\u591a\u304f\u3001\u5c0e\u5165\u30b3\u30b9\u30c8\u3092\u6291\u3048\u3089\u308c\u308b\u306e\u3082\u9b45\u529b\u3067\u3059\u3002\u53e3\u30b3\u30df\u3084\u8a55\u5224\u3001\u30a2\u30d5\u30bf\u30fc\u30b5\u30dd\u30fc\u30c8\u306e\u5145\u5b9f\u5ea6\u306a\u3069\u3092\u6bd4\u8f03\u3057\u3001\u81ea\u793e\u306b\u9069\u3057\u305fDDoS\u5bfe\u7b56\u30c4\u30fc\u30eb\u3092\u5c0e\u5165\u3057\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n<h2 id=\"toc_id25\" ><span id=\"DDoS-8\"><strong>\u9069\u5207\u306aDDoS\u653b\u6483\u5bfe\u7b56\u3092\u59cb\u3081\u3088\u3046<\/strong><\/span><\/h2>\n<img decoding=\"async\" class=\"size-full wp-image-15055 aligncenter\" src=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image2.jpg\" alt=\"\" width=\"640\" height=\"425\" srcset=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image2.jpg 640w, https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image2-300x199.jpg 300w, https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/07\/image2-485x322.jpg 485w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/>\n<p><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u306f\u3001\u691c\u77e5\u30fb\u5bfe\u7b56\u304c\u96e3\u3057\u304f\u3001\u6c17\u3065\u3044\u305f\u3068\u304d\u306b\u306f\u624b\u9045\u308c\u306e\u72b6\u614b\u306b\u306a\u3063\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3067\u3059\u3002\u653b\u6483\u306b\u5bfe\u51e6\u3067\u304d\u306a\u3051\u308c\u3070\u3001Web\u30b5\u30fc\u30d3\u30b9\u306e\u63d0\u4f9b\u304c\u505c\u6b62\u30fb\u9045\u5ef6\u3057\u3001\u5229\u7528\u8005\u6e80\u8db3\u5ea6\u306e\u4f4e\u4e0b\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u691c\u77e5\u30fb\u9632\u5fa1\u304c\u56f0\u96e3\u306aDDoS\u653b\u6483\u3067\u3082\u3001\u653b\u6483\u76ee\u7684\u3068\u7279\u6027\u3092\u7406\u89e3\u3057\u305f\u3046\u3048\u3067\u9069\u5207\u306a\u5bfe\u7b56\u3092\u5b9f\u65bd\u3059\u308c\u3070\u3001\u672a\u7136\u306b\u653b\u6483\u3092\u9632\u3052\u307e\u3059\u3002DDoS\u653b\u6483\u306e\u7279\u6027\u3084\u7a2e\u985e\u3092\u7406\u89e3\u3057\u305f\u3046\u3048\u3067\u3001\u81ea\u793e\u306b\u5408\u3063\u305f\u5bfe\u7b56\u6cd5\u3092\u5b9f\u884c\u3057\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">DDoS\u653b\u6483\u306e\u3088\u3046\u306b\u9032\u5316\u3057\u7d9a\u3051\u308b\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u3078\u5bfe\u51e6\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u4e0b\u8a18\u306e\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u88ab\u5bb3\u4e8b\u4f8b\u3068\u5bfe\u7b56\u3092\u307e\u3068\u3081\u305f\u30db\u30ef\u30a4\u30c8\u30da\u30fc\u30d1\u30fc\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/span><\/p>\n<hr \/>\n<p style=\"text-align: center;\"><strong><span style=\"color: #ff0000; font-size: 16px;\">\u30de\u30eb\u30a6\u30a7\u30a2\u304c\u52d5\u3044\u3066\u3082\u300c\u611f\u67d3\u3055\u305b\u306a\u3044\u300d\u3002<\/span><\/strong><br \/>\n\u4e0d\u6b63\u306a\u52d5\u4f5c\u3092\u3059\u3079\u3066\u30b7\u30e3\u30c3\u30c8\u30a2\u30a6\u30c8\u3059\u308b\u65b0\u578b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3<span style=\"font-size: 16px;\"><strong>\u300cAppGuard\u300d<\/strong><\/span>\u306b\u3064\u3044\u3066\u306f\u3001\u4e0b\u8a18\u3088\u308a\u3054\u89a7\u3044\u305f\u3060\u3051\u307e\u3059\u3002<\/p>\n<p style=\"text-align: center;\"><a class=\"q_button bt_green\" href=\"https:\/\/www.daiko-xtech.co.jp\/form\/daiko-plus_inquiry_appguard\/?utm_source=daiko_plus&amp;utm_medium=referral&amp;utm_campaign=appguard_column\">\u30ab\u30bf\u30ed\u30b0<\/a>\u3000<a class=\"q_button bt_blue\" href=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/security-appguard\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u88fd\u54c1\u306e\u8a73\u7d30<\/a><\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<a href=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp\/security\/sophisticated-cyber-attack-measures-3steps\/\"><img decoding=\"async\" class=\"aligncenter wp-image-13303 size-full\" src=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/03\/CTA_AG-11.png\" alt=\"\" width=\"690\" height=\"246\" srcset=\"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/03\/CTA_AG-11.png 690w, https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-content\/uploads\/2025\/03\/CTA_AG-11-300x107.png 300w\" sizes=\"(max-width: 690px) 100vw, 690px\" \/><\/a>\n","protected":false},"excerpt":{"rendered":"<p>\u9032\u5316\u3092\u7d9a\u3051\u308b\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u3002\u305d\u306e\u4e2d\u3067\u3082\u8105\u5a01\u3092\u5897\u3057\u7d9a\u3051\u3066\u3044\u308b\u306e\u304c\u300cDDoS\u653b\u6483\u300d\u3067\u3059\u3002\u5f93\u6765\u578b\u306eDoS\u653b\u6483\u306f\u300cDDoS\u653b\u6483\u300d\u3078\u3068\u3001\u305d\u3057\u3066\u305d\u306e\u653b\u6483\u624b\u6cd5\u306f\u300c\u30de\u30eb\u30c1\u30d9\u30af\u30c8\u30eb\u578b\u300d\u3078\u3068\u5909\u5316\u3057\u3066\u304a\u308a\u3001\u591a\u304f\u306e\u4f01\u696d\u30fb\u56e3\u4f53\u304c\u305d\u306e\u5bfe\u5fdc\u306b\u982d\u3092\u62b1\u3048\u3066&#8230;<\/p>\n","protected":false},"author":7,"featured_media":16449,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4],"tags":[],"blog_industries":[],"blog_topic":[],"class_list":{"0":"post-3115","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-security","8":"article"},"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/posts\/3115","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/comments?post=3115"}],"version-history":[{"count":19,"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/posts\/3115\/revisions"}],"predecessor-version":[{"id":16450,"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/posts\/3115\/revisions\/16450"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/media\/16449"}],"wp:attachment":[{"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/media?parent=3115"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/categories?post=3115"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/tags?post=3115"},{"taxonomy":"blog_industries","embeddable":true,"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/blog_industries?post=3115"},{"taxonomy":"blog_topic","embeddable":true,"href":"https:\/\/www.daiko-xtech.co.jp\/daiko-plus\/wp-json\/wp\/v2\/blog_topic?post=3115"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}