{"id":474,"date":"2022-08-01T12:38:43","date_gmt":"2022-08-01T12:38:43","guid":{"rendered":"https:\/\/securitybriefing.net\/?p=474"},"modified":"2022-08-01T12:38:43","modified_gmt":"2022-08-01T12:38:43","slug":"ddos%e6%94%bb%e6%92%83%e3%81%a8%e3%81%af","status":"publish","type":"post","link":"https:\/\/securitybriefing.net\/ja\/%e3%83%89%e3%82%b9\/ddos%e6%94%bb%e6%92%83%e3%81%a8%e3%81%af\/","title":{"rendered":"DDoS\u653b\u6483\u3068\u306f\u4f55\u304b\uff1f\u5b8c\u5168\u30ac\u30a4\u30c9"},"content":{"rendered":"<p>\u5206\u6563\u578b\u30b5\u30fc\u30d3\u30b9\u62d2\u5426\uff08DDoS\uff09\u653b\u6483\u306f\u3001\u8907\u6570\u306e\u30bd\u30fc\u30b9\u304b\u3089\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3067\u30aa\u30f3\u30e9\u30a4\u30f3\u30b5\u30fc\u30d3\u30b9\u3092\u5727\u5012\u3057\u3001\u5229\u7528\u4e0d\u80fd\u306b\u3059\u308b\u60aa\u610f\u306e\u3042\u308b\u8a66\u307f\u3067\u3059\u3002\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001DDoS\u653b\u6483\u306b\u3064\u3044\u3066\u77e5\u3063\u3066\u304a\u304f\u3079\u304d\u3059\u3079\u3066\u306e\u3053\u3068\u3001\u305d\u3057\u3066\u305d\u308c\u306b\u5bfe\u6297\u3059\u308b\u65b9\u6cd5\u3092\u6559\u3048\u307e\u3059\u3002.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"what-is-a-ddos-attack\"><strong>DDoS\u653b\u6483\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/strong><\/h2>\n\n\n<p>DDoS\u653b\u6483\u306f\u3001\u30cf\u30c3\u30ad\u30f3\u30b0\u306e\u9055\u6cd5\u306a\u4e00\u7a2e\u3067\u3042\u308a\u3001\u30b5\u30fc\u30d0\u30fc\u306b\u5927\u91cf\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u9001\u308a\u8fbc\u307f\u3001\u30ea\u30f3\u30af\u3055\u308c\u305f\u30aa\u30f3\u30e9\u30a4\u30f3\u30b5\u30fc\u30d3\u30b9\u3084\u30b5\u30a4\u30c8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u59a8\u3052\u308b\u3082\u306e\u3067\u3059\u3002.<\/p>\n\n\n\n<p>\u4eba\u3005\u304cDDoS\u653b\u6483\u3092\u4ed5\u639b\u3051\u305f\u3044\u7406\u7531\u306f\u591a\u5c90\u306b\u308f\u305f\u308a\u307e\u3059\u3002\u3042\u308b\u4eba\u3005\u306f\u3001\u4f01\u696d\u306e\u30b5\u30fc\u30d0\u30fc\u3092\u30c0\u30a6\u30f3\u3055\u305b\u3066\u58f0\u660e\u3092\u51fa\u3057\u305f\u3044\u6012\u3063\u305f\u9867\u5ba2\u3084\u30cf\u30af\u30c6\u30a3\u30d3\u30b9\u30c8\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u4ed6\u306e\u4eba\u3005\u306f\u3001\u697d\u3057\u307f\u306e\u305f\u3081\u3084\u4f55\u304b\u306b\u5bfe\u3059\u308b\u6297\u8b70\u306e\u305f\u3081\u306b\u884c\u3046\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<p>DDoS\u653b\u6483\u306f\u4f01\u696d\u304b\u3089\u306e\u76d7\u96e3\u306b\u4f7f\u7528\u3055\u308c\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u4e3b\u306b\u8ca1\u653f\u7684\u306a\u61f8\u5ff5\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u3042\u308b\u4f01\u696d\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u6d3b\u52d5\u304c\u30e9\u30a4\u30d0\u30eb\u306b\u3088\u3063\u3066\u59a8\u5bb3\u3055\u308c\u3001\u9867\u5ba2\u3092\u596a\u308f\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u5225\u306e\u4f8b\u3068\u3057\u3066\u306f\u3001\u653b\u6483\u8005\u304c\u4f01\u696d\u3092\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u3057\u3066\u30db\u30b9\u30c8\u30a6\u30a7\u30a2\u3084\u30e9\u30f3\u30b5\u30e0\u30a6\u30a7\u30a2\u3092\u30b5\u30fc\u30d0\u30fc\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3001\u88ab\u5bb3\u3092\u5143\u306b\u623b\u3059\u305f\u3081\u306b\u5de8\u984d\u306e\u8eab\u4ee3\u91d1\u3092\u8981\u6c42\u3059\u308b\u6050\u559d\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u6b8b\u5ff5\u306a\u304c\u3089\u3001DDoS\u653b\u6483\u306f\u8fd1\u5e74\u307e\u3059\u307e\u3059\u983b\u7e41\u304b\u3064\u5f37\u529b\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u304c\u4f01\u696d\u3084\u500b\u4eba\u306b\u3068\u3063\u3066\u307e\u3059\u307e\u3059\u91cd\u8981\u306b\u306a\u308b\u306b\u3064\u308c\u3066\u3001IoT\u30c7\u30d0\u30a4\u30b9\u306e\u5897\u52a0\u3082\u3053\u308c\u306b\u5bc4\u4e0e\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30c7\u30d0\u30a4\u30b9\u306e\u591a\u304f\u306f\u30cf\u30c3\u30ad\u30f3\u30b0\u304c\u5bb9\u6613\u3067\u3042\u308a\u3001\u653b\u6483\u3092\u4ed5\u639b\u3051\u308b\u30dc\u30c3\u30c8\u30cd\u30c3\u30c8\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"how-does-a-ddos-attack-work\"><strong>DDoS\u653b\u6483\u306f\u3069\u306e\u3088\u3046\u306b\u6a5f\u80fd\u3057\u307e\u3059\u304b\uff1f<\/strong><\/h2>\n\n\n<p>DDoS\u653b\u6483\u306f\u3001\u591a\u304f\u306e\u30cf\u30c3\u30ad\u30f3\u30b0\u3055\u308c\u305f\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3092\u4f7f\u7528\u3057\u3066\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3084\u30b5\u30fc\u30d0\u30fc\u306b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u9001\u308a\u8fbc\u307f\u3001\u305d\u306e\u30b5\u30a4\u30c8\u3084\u30b5\u30fc\u30d0\u30fc\u306e\u6a5f\u80fd\u3092\u56f0\u96e3\u306b\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30dc\u30c3\u30c8\u30cd\u30c3\u30c8\u3068\u547c\u3070\u308c\u308b\u30dc\u30c3\u30c8\u306e\u96c6\u5408\u3092\u4f7f\u7528\u3057\u3066\u3053\u308c\u3089\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3092\u30ea\u30e2\u30fc\u30c8\u3067\u5236\u5fa1\u3059\u308b\u3053\u3068\u3067\u884c\u308f\u308c\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u30dc\u30c3\u30c8\u30cd\u30c3\u30c8\u304c\u78ba\u7acb\u3055\u308c\u305f\u5f8c\u3001\u653b\u6483\u8005\u306f\u5404\u30dc\u30c3\u30c8\u306b\u30ea\u30e2\u30fc\u30c8\u30b3\u30de\u30f3\u30c9\u3092\u9001\u4fe1\u3057\u3066\u653b\u6483\u3092\u6307\u793a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u306eIP\u30a2\u30c9\u30ec\u30b9\u304c\u30ea\u30af\u30a8\u30b9\u30c8\u3067\u904e\u8ca0\u8377\u306b\u306a\u308a\u3001\u901a\u5e38\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306b\u5bfe\u3059\u308b\u30b5\u30fc\u30d3\u30b9\u62d2\u5426\u653b\u6483\u304c\u767a\u751f\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u5404\u30dc\u30c3\u30c8\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u5b9f\u969b\u306e\u30c7\u30d0\u30a4\u30b9\u3067\u3042\u308b\u305f\u3081\u3001\u7570\u5e38\u306a\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u4e88\u671f\u3055\u308c\u308b\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3059\u308b\u306e\u306f\u56f0\u96e3\u3067\u3059\u3002.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"how-to-identify-a-ddos-attack\"><strong>DDoS\u653b\u6483\u3092\u8b58\u5225\u3059\u308b\u65b9\u6cd5<\/strong><\/h2>\n\n\n<p>DDoS\u653b\u6483\u306e\u6700\u3082\u5384\u4ecb\u306a\u70b9\u306f\u3001\u8b66\u544a\u30b5\u30a4\u30f3\u304c\u898b\u3048\u306a\u3044\u3053\u3068\u3067\u3059\u3002\u901a\u5e38\u3001\u8457\u540d\u306a\u30cf\u30c3\u30ad\u30f3\u30b0\u96c6\u56e3\u306f\u653b\u6483\u3092\u958b\u59cb\u3059\u308b\u524d\u306b\u8b66\u544a\u3092\u51fa\u3057\u307e\u3059\u304c\u3001\u307b\u3068\u3093\u3069\u306e\u653b\u6483\u8005\u306f\u901a\u77e5\u306a\u3057\u306b\u653b\u6483\u3092\u547d\u3058\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u4eba\u3005\u306f\u3001\u3042\u306a\u305f\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u6c17\u306b\u5165\u3089\u306a\u3044\u5834\u5408\u3001\u5fc5\u305a\u3057\u3082\u6559\u3048\u3066\u304f\u308c\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4f55\u304b\u304c\u9593\u9055\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u6700\u521d\u306f\u6559\u3048\u3066\u304f\u308c\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u5f8c\u3067\u6559\u3048\u3066\u304f\u308c\u308b\u3067\u3057\u3087\u3046\u3002\u3053\u308c\u306f\u3001\u4eba\u3005\u304c\u901a\u5e38\u3042\u306a\u305f\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u3042\u306a\u305f\u306e\u3088\u3046\u306b\u30c1\u30a7\u30c3\u30af\u3057\u306a\u3044\u304b\u3089\u3067\u3059\u3002\u3042\u306a\u305f\u306f\u3059\u3079\u3066\u304c\u5927\u4e08\u592b\u3060\u3068\u601d\u3063\u3066\u3044\u307e\u3059\u304c\u3001\u6642\u306b\u306f\u305d\u3046\u3067\u306f\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u521d\u306f\u898b\u3048\u306a\u3044\u554f\u984c\u304c\u3042\u308b\u3053\u3068\u304c\u3042\u308b\u306e\u3067\u3001\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002.<\/p>\n\n\n\n<p>\u5206\u6563\u578b\u30b5\u30fc\u30d3\u30b9\u62d2\u5426\u653b\u6483\u306e\u767a\u4fe1\u6e90\u3092\u898b\u3064\u3051\u308b\u306e\u306f\u96e3\u3057\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u653b\u6483\u306f\u4f55\u6642\u9593\u3082\u7d9a\u304f\u3053\u3068\u304c\u3042\u308a\u3001\u3059\u3050\u306b\u6b62\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u4f55\u6642\u9593\u3082\u53ce\u76ca\u3068\u30b5\u30fc\u30d3\u30b9\u3092\u5931\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"mitigate-a-ddos-attack\"><strong>DDoS\u653b\u6483\u3092\u8efd\u6e1b\u3059\u308b<\/strong><\/h3>\n\n\n<p>DDoS\u653b\u6483\u304b\u3089\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u4fdd\u8b77\u3059\u308b\u6700\u826f\u306e\u65b9\u6cd5\u306f\u3001\u3067\u304d\u308b\u3060\u3051\u65e9\u304f\u305d\u308c\u3092\u691c\u51fa\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u6b21\u306e\u5146\u5019\u306e\u3044\u305a\u308c\u304b\u306b\u6c17\u4ed8\u3044\u305f\u5834\u5408\u3001\u73fe\u5728DDoS\u653b\u6483\u3092\u53d7\u3051\u3066\u3044\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8aad\u307f\u8fbc\u307f\u304c\u9045\u3044\u00a0<\/li>\n<li>\u30b5\u30fc\u30d0\u30fc\u304c503\u3067\u5fdc\u7b54\u3059\u308b<\/li>\n<li>TTL\u304c\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3059\u308b<\/li>\n<li>\u30b9\u30d1\u30e0\u30b3\u30e1\u30f3\u30c8\u304c\u904e\u5270\u306b\u3042\u308b<\/li>\n<li>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u7a81\u7136\u5207\u65ad\u3055\u308c\u308b<\/li>\n<li>\u5947\u5999\u306a\u6642\u9593\u306b\u30b9\u30d1\u30a4\u30af\u3059\u308b\u3088\u3046\u306a\u5178\u578b\u7684\u306a\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30d1\u30bf\u30fc\u30f3\u304c\u3042\u308b<\/li>\n<\/ul>\n\n\n<h2 class=\"wp-block-heading\" id=\"the-most-common-types-of-ddos-attacks\"><strong>\u6700\u3082\u4e00\u822c\u7684\u306aDDoS\u653b\u6483\u306e\u7a2e\u985e<\/strong><\/h2>\n\n\n<p>\u72af\u7f6a\u8005\u306f\u3055\u307e\u3056\u307e\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u3092\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u3059\u308b\u305f\u3081\u306bDDoS\u653b\u6483\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u57fa\u672c\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u306eDDoS\u653b\u6483\u304c\u3069\u306e\u3088\u3046\u306b\u6a5f\u80fd\u3059\u308b\u304b\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002.<\/p>\n\n\n\n<p>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u306b\u306f\u3001\u30ec\u30a4\u30e4\u30fc\u3068\u3082\u547c\u3070\u308c\u308b\u3044\u304f\u3064\u304b\u306e\u7570\u306a\u308b\u90e8\u5206\u304c\u3042\u308a\u307e\u3059\u3002\u5404\u30ec\u30a4\u30e4\u30fc\u306b\u306f\u7279\u5b9a\u306e\u76ee\u7684\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p>OSI\u30e2\u30c7\u30eb\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u3055\u307e\u3056\u307e\u306a\u90e8\u5206\u304c\u3069\u306e\u3088\u3046\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u8868\u3059\u30b0\u30e9\u30d5\u30a3\u30ab\u30eb\u306a\u65b9\u6cd5\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u73fe\u5728\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306f\u3001TCP\/IP\u3068\u547c\u3070\u308c\u308b\u3088\u308a\u7c21\u5358\u306a\u30b7\u30b9\u30c6\u30e0\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\u3002OSI\u30e2\u30c7\u30eb\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u3069\u306e\u3088\u3046\u306b\u6a5f\u80fd\u3057\u3001\u3069\u306e\u3088\u3046\u306a\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u304b\u3092\u7406\u89e3\u3057\u3001\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u305f\u3081\u3001\u4f9d\u7136\u3068\u3057\u3066\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p>DDoS\u653b\u6483\u306b\u306f3\u3064\u306e\u30bf\u30a4\u30d7\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u521d\u306e\u30bf\u30a4\u30d7\u306f\u3001\u30c7\u30d0\u30a4\u30b9\u304c\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3067\u904e\u8ca0\u8377\u306b\u306a\u308b\u5834\u5408\u3067\u3059\u30022\u756a\u76ee\u306e\u30bf\u30a4\u30d7\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3067\u904e\u8ca0\u8377\u306b\u306a\u308b\u5834\u5408\u3067\u3059\u30023\u756a\u76ee\u306e\u30bf\u30a4\u30d7\u306f\u3001\u653b\u6483\u8005\u304c\u8907\u6570\u306e\u653b\u6483\u30d9\u30af\u30c8\u30eb\u3092\u4f7f\u7528\u3057\u3066\u30bf\u30fc\u30b2\u30c3\u30c8\u3092\u5727\u5012\u3059\u308b\u5834\u5408\u306b\u767a\u751f\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-481\" src=\"http:\/\/securitybriefing.net\/wp-content\/uploads\/2022\/08\/osi-model-layers.png\" alt=\"OSI\u30e2\u30c7\u30eb\u306e\u30ec\u30a4\u30e4\u30fc\" width=\"825\" height=\"737\" \/><\/figure>\n\n\n<h3 class=\"wp-block-heading\" id=\"application-layer-attacks\"><strong>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u653b\u6483<\/strong><\/h3>\n\n\n<p>\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u306f\u3001\u4eba\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u6700\u521d\u306b\u63a5\u89e6\u3057\u305f\u3068\u304d\u306b\u59cb\u307e\u308a\u307e\u3059\u3002\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u306eDDoS\u653b\u6483\u306f\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u304c\u52d5\u4f5c\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u3001\u4eba\u3005\u304c\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u898b\u3089\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u653b\u6483\u3067\u306f\u3001\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u304c\u3088\u304f\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u3055\u308c\u307e\u3059\u304c\u3001SIP\u97f3\u58f0\u30b5\u30fc\u30d3\u30b9\u3084BGP\u306a\u3069\u306e\u4ed6\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3082\u653b\u6483\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p>TCP\/IP\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u30c7\u30d0\u30a4\u30b9\u9593\u3067\u30c7\u30fc\u30bf\u3092\u8ee2\u9001\u3067\u304d\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u3053\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306fDDoS\u653b\u6483\u306b\u975e\u5e38\u306b\u8106\u5f31\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u540c\u6642\u306b\u9001\u4fe1\u3059\u308b\u3053\u3068\u3067\u30c7\u30d0\u30a4\u30b9\u3092\u653b\u6483\u3057\u3001\u52d5\u4f5c\u3092\u505c\u6b62\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u4e00\u90e8\u306e\u4eba\u3005\u306f\u3053\u308c\u306b\u30d5\u30e9\u30b9\u30c8\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u611f\u3058\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u30aa\u30f3\u30e9\u30a4\u30f3\u53d6\u5f15\u306b\u5b89\u5168\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u306f\u4f9d\u7136\u3068\u3057\u3066\u91cd\u8981\u3067\u3059\u3002\u901a\u4fe1\u306e\u6697\u53f7\u5316\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4e21\u65b9\u306e\u5f53\u4e8b\u8005\u304c\u508d\u53d7\u3084\u76d7\u8074\u304b\u3089\u4fdd\u8b77\u3055\u308c\u307e\u3059\u3002\u307b\u3068\u3093\u3069\u306eDDoS\u653b\u6483\u306f\u30011\u79d2\u3042\u305f\u308a\u306e\u30d1\u30b1\u30c3\u30c8\u6570\u304c\u306f\u308b\u304b\u306b\u5c11\u306a\u3044\u3067\u3059\u3002.<\/p>\n\n\n\n<p>\u3053\u306e\u653b\u6483\u306f\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u7279\u5b9a\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u3084\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u3092\u542b\u3080\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u653b\u6483\u306f\u3001\u7c21\u5358\u306b\u507d\u88c5\u3067\u304d\u306a\u3044IoT\u30c7\u30d0\u30a4\u30b9\u306b\u3088\u3063\u3066\u4e3b\u306b\u99c6\u52d5\u3055\u308c\u307e\u3059\u3002.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"example-of-application%25c2%25a0ddos-attacks\"><strong>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3DDoS\u653b\u6483\u306e\u4f8b<\/strong><\/h3>\n\n\n<p><strong>HTTP\u30d5\u30e9\u30c3\u30c9<\/strong><\/p>\n\n\n\n<p>\u3053\u308c\u306f\u3001\u591a\u304f\u306e\u7570\u306a\u308b\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304b\u3089\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u53d7\u3051\u5165\u308c\u308b\u30b5\u30fc\u30d0\u30fc\u3067\u3059\u3002\u3053\u306e\u65b9\u6cd5\u306f\u3001\u591a\u304f\u306ePC\u3067\u540c\u6642\u306b\u30a6\u30a7\u30d6\u30da\u30fc\u30b8\u3092\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3059\u308b\u3088\u3046\u306b\u3001\u30b5\u30fc\u30d0\u30fc\u306b\u591a\u304f\u306eHTTP\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1\u3057\u3001\u904e\u8ca0\u8377\u306b\u3057\u307e\u3059\u3002\u653b\u6483\u306f\u5358\u7d14\u307e\u305f\u306f\u8907\u96d1\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p>1\u3064\u306eURL\u306b\u5bfe\u3057\u3066\u3001\u540c\u3058\u7bc4\u56f2\u306e\u653b\u6483IP\u30a2\u30c9\u30ec\u30b9\u3001\u53c2\u7167\u30b5\u30a4\u30c8\u3001\u30e6\u30fc\u30b6\u30fc\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u3066\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u653b\u6483\u8005\u304c\u30bf\u30fc\u30b2\u30c3\u30c8URL\u3092\u898b\u3064\u3051\u3066\u4f7f\u7528\u3059\u308b\u306e\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002\u3088\u308a\u8907\u96d1\u306a\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u53c2\u7167\u5143\u3084\u30e6\u30fc\u30b6\u30fc\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u3066\u3001\u3055\u307e\u3056\u307e\u306aURL\u3092\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u30d7\u30ed\u30c8\u30b3\u30eb\u653b\u6483<\/strong><\/p>\n\n\n\n<p>\u30d7\u30ed\u30c8\u30b3\u30eb\u30d5\u30e9\u30c3\u30c9\u306f\u3001\u30b5\u30fc\u30d3\u30b9\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u5927\u91cf\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u9001\u4fe1\u3057\u3001\u4f7f\u7528\u3092\u56f0\u96e3\u306b\u3059\u308bDDoS\u653b\u6483\u3067\u3059\u3002\u30ec\u30a4\u30e4\u30fc3\u304a\u3088\u3073\u30ec\u30a4\u30e4\u30fc4\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u30b9\u30bf\u30c3\u30af\u306e\u8106\u5f31\u6027\u3092\u60aa\u7528\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p>DDoS\u653b\u6483\u306f\u3001\u591a\u304f\u306e\u4f4e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3001\u7121\u9632\u5099\u3001\u7121\u4fdd\u8b77\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u3059\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002DDoS\u653b\u6483\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u901a\u4fe1\u6a19\u6e96\u3092\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u3059\u308b\u3053\u3068\u304c\u4e00\u822c\u7684\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u3053\u308c\u3089\u306e\u30b7\u30b9\u30c6\u30e0\u306e\u591a\u304f\u304c\u4e16\u754c\u4e2d\u3067\u4f7f\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u8fc5\u901f\u306b\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u96e3\u3057\u3044\u305f\u3081\u3067\u3059\u3002\u3055\u3089\u306b\u3001\u591a\u304f\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u73fe\u5728\u306e\u30d0\u30b0\u306b\u5bfe\u51e6\u3059\u308b\u305f\u3081\u306b\u518d\u691c\u8a0e\u3055\u308c\u305f\u5f8c\u3067\u3082\u3001\u56fa\u6709\u306e\u8907\u96d1\u3055\u3092\u6301\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u65b0\u3057\u3044\u30d7\u30ed\u30c8\u30b3\u30eb\u653b\u6483\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u653b\u6483\u306e\u65b0\u3057\u3044\u8106\u5f31\u6027\u304c\u51fa\u73fe\u3057\u307e\u3059\u3002.<\/p>\n\n\n<h4 class=\"wp-block-heading\" id=\"examples-of-protocol-ddos-attacks\"><strong>\u30d7\u30ed\u30c8\u30b3\u30ebDDoS\u653b\u6483\u306e\u4f8b<\/strong><\/h4>\n\n\n<p><strong>(BGP)\u30cf\u30a4\u30b8\u30e3\u30c3\u30af<\/strong><\/p>\n\n\n\n<p>\u30af\u30e9\u30a6\u30c9\u30d9\u30fc\u30b9\u306e\u30b5\u30fc\u30d3\u30b9\u306b\u306f\u3001\u30c7\u30fc\u30bf\u6ce5\u68d2\u304c\u6b32\u3057\u304c\u308b\u591a\u304f\u306e\u8cb4\u91cd\u306a\u60c5\u5831\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u3053\u308c\u3089\u306e\u30b5\u30fc\u30d3\u30b9\u304b\u3089\u6709\u7528\u306a\u60c5\u5831\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306e\u3044\u305a\u308c\u304b\u304b\u3089\u30c7\u30fc\u30bf\u6f0f\u6d29\u304c\u767a\u751f\u3059\u308b\u3068\u3001\u975e\u5e38\u306b\u5371\u967a\u3067\u3059\u3002\u8ab0\u304b\u304c\u30af\u30e9\u30a6\u30c9\u3088\u308a\u3082\u9ad8\u3044\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u7528\u3057\u3066\u4f01\u696d\u306b\u5bfe\u3057\u3066DDoS\u653b\u6483\u3092\u4ed5\u639b\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002BGP\uff08\u30dc\u30fc\u30c0\u30fc\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u30d7\u30ed\u30c8\u30b3\u30eb\uff09\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u7a7a\u9593\u306b\u95a2\u3059\u308b\u60c5\u5831\u3092\u901a\u4fe1\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p>BGP\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\u3067\u60c5\u5831\u3092\u5171\u6709\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u8ab0\u304b\u304c\u507d\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u9001\u4fe1\u3059\u308b\u3068\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u5225\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u79fb\u52d5\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30ea\u30bd\u30fc\u30b9\u304c\u6d88\u8cbb\u3055\u308c\u3001\u6df7\u96d1\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002BGP\u306e\u3088\u308a\u5b89\u5168\u306a\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3059\u308b\u3053\u3068\u306f\u3001\u4e16\u754c\u4e2d\u306e\u4f55\u4e07\u3082\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30aa\u30da\u30ec\u30fc\u30bf\u30fc\u304c\u4f7f\u7528\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u6642\u9593\u3068\u8cbb\u7528\u304c\u304b\u304b\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>SYN\u30d5\u30e9\u30c3\u30c9<\/strong><\/p>\n\n\n\n<p>TCP SYN\u30d5\u30e9\u30c3\u30c9\u306f\u3001\u5e97\u306e\u524d\u3067\u6ce8\u6587\u3092\u53d7\u3051\u308b\u4f9b\u7d66\u4f5c\u696d\u54e1\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u3002.<\/p>\n\n\n\n<p>\u30c9\u30e9\u30a4\u30d0\u30fc\u306f\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u53d7\u3051\u53d6\u308a\u3001\u78ba\u8a8d\u3092\u5f85\u3061\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u53d7\u3051\u53d6\u3063\u305f\u5f8c\u306b\u524d\u306b\u904b\u3073\u307e\u3059\u3002\u5f93\u696d\u54e1\u306f\u78ba\u8a8d\u306a\u3057\u306b\u591a\u6570\u306e\u914d\u9054\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u53d7\u3051\u53d6\u308a\u3001\u3053\u308c\u4ee5\u4e0a\u306e\u51fa\u8377\u3092\u904b\u3076\u3053\u3068\u304c\u3067\u304d\u306a\u304f\u306a\u308b\u307e\u3067\u7d9a\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5f7c\u3089\u306f\u5727\u5012\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u3053\u306e\u653b\u6483\u3067\u306f\u3001\u653b\u6483\u8005\u304c\u88ab\u5bb3\u8005\u306b\u591a\u6570\u306e\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002\u30d1\u30b1\u30c3\u30c8\u306b\u306f\u507d\u306e\u30a2\u30c9\u30ec\u30b9\u304c\u3042\u308a\u307e\u3059\u3002\u5f7c\u3089\u306f\u30012\u53f0\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u3092\u958b\u59cb\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3059\u308b\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u3092\u60aa\u7528\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u4fb5\u5165\u8005\u306e\u76ee\u6a19\u306f\u3001\u30ea\u30bd\u30fc\u30b9\u3092\u30b7\u30e3\u30c3\u30c8\u30c0\u30a6\u30f3\u3059\u308b\u524d\u306b\u53ef\u80fd\u306a\u9650\u308a\u591a\u304f\u306e\u63a5\u7d9a\u8a66\u884c\u3092\u8a31\u53ef\u3059\u308b\u3053\u3068\u3067\u3059\u3002.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"volumetric-attacks\"><strong>\u30dc\u30ea\u30e5\u30e1\u30c8\u30ea\u30c3\u30af\u653b\u6483<\/strong><\/h3>\n\n\n<p>\u3053\u306e\u653b\u6483\u306e\u76ee\u7684\u306f\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u3068\u4e16\u754c\u306e\u6b8b\u308a\u306e\u9593\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5e2f\u57df\u5e45\u3092\u3059\u3079\u3066\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u30c7\u30fc\u30bf\u306f\u3001\u5897\u5e45\u307e\u305f\u306f\u30dc\u30c3\u30c8\u30cd\u30c3\u30c8\u304b\u3089\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306a\u3069\u3001\u81a8\u5927\u306a\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306e\u5225\u306e\u65b9\u6cd5\u306e\u3044\u305a\u308c\u304b\u3067\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002.<\/p>\n\n\n<h4 class=\"wp-block-heading\" id=\"examples-of-volumetric-attacks\"><strong>\u30dc\u30ea\u30e5\u30e1\u30c8\u30ea\u30c3\u30af\u653b\u6483\u306e\u4f8b<\/strong><\/h4>\n\n\n<p><strong>DNS\u5897\u5e45<\/strong><\/p>\n\n\n\n<p>\u653b\u6483\u8005\u306fDNS\u30b5\u30fc\u30d0\u30fc\u306b\u5c0f\u3055\u306a\u30af\u30a8\u30ea\u3092\u9001\u4fe1\u3057\u307e\u3059\u304c\u3001\u30b5\u30fc\u30d0\u30fc\u306f\u30af\u30a8\u30ea\u3092\u306f\u308b\u304b\u306b\u5927\u304d\u306a\u30da\u30a4\u30ed\u30fc\u30c9\u306b\u5897\u5e45\u3057\u3001\u88ab\u5bb3\u8005\u306e\u30b5\u30fc\u30d0\u30fc\u3092\u30af\u30e9\u30c3\u30b7\u30e5\u3055\u305b\u307e\u3059\u3002\u3053\u306e\u30bf\u30a4\u30d7\u306e\u653b\u6483\u306f\u3001\u5897\u5e45DDoS\u653b\u6483\u3068\u3057\u3066\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p>DNS\u5897\u5e45\u306f\u3001\u653b\u6483\u8005\u304cDNS\u30b5\u30fc\u30d0\u30fc\u3092\u4f7f\u7528\u3057\u3066\u88ab\u5bb3\u8005\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u653b\u6483\u306e\u4e00\u7a2e\u3067\u3059\u3002\u30d1\u30b1\u30c3\u30c8\u306f\u5897\u5e45\u3055\u308c\u3001\u30d6\u30ed\u30c3\u30af\u304c\u96e3\u3057\u304f\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p>DNS\u5897\u5e45\u306f\u3001\u8ab0\u304b\u304cDNS\u30ea\u30be\u30eb\u30d0\u3092\u9a19\u3057\u3066\u5927\u91cf\u306e\u60c5\u5831\u3092\u9001\u4fe1\u3055\u305b\u308b\u653b\u6483\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u507d\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092DNS\u30ea\u30be\u30eb\u30d0\u306b\u9001\u4fe1\u3057\u3001\u5b9f\u969b\u306e\u30a2\u30c9\u30ec\u30b9\u3067\u306f\u306a\u3044\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u767a\u751f\u3057\u307e\u3059\u3002\u591a\u304f\u306e\u4eba\u304c\u3053\u308c\u3092\u884c\u3044\u3001\u591a\u304f\u306eDNS\u30ea\u30be\u30eb\u30d0\u304c\u5b58\u5728\u3059\u308b\u305f\u3081\u3001\u88ab\u5bb3\u8005\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u3059\u3050\u306b\u5727\u5012\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>DDoS\u653b\u6483\u306e\u8efd\u6e1b<\/strong><\/p>\n\n\n\n<p>DDoS\u653b\u6483\u304c\u4eba\u3005\u3092\u8972\u3046\u3068\u3001\u5f7c\u3089\u306f\u3057\u3070\u3057\u3070\u6df7\u4e71\u3057\u307e\u3059\u3002\u591a\u304f\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u53d7\u4fe1\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306b\u95a2\u3059\u308b\u8a73\u7d30\u306a\u60c5\u5831\u3092\u63d0\u4f9b\u3057\u307e\u305b\u3093\u3002DDoS\u306b\u3064\u3044\u3066\u78ba\u5b9f\u306b\u8a00\u3048\u308b\u3053\u3068\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u30aa\u30f3\u30e9\u30a4\u30f3\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u505c\u6b62\u306b\u3088\u308a\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u304f\u306a\u3063\u305f\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u30bf\u30fc\u30b2\u30c3\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4fdd\u8b77\u3059\u308b\u30aa\u30f3\u30d7\u30ec\u30df\u30b9\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c7\u30d0\u30a4\u30b9\u304c\u3042\u308b\u5834\u5408\u3001\u554f\u984c\u306f\u60aa\u5316\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u53e4\u3044\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304c\u3042\u308b\u5834\u5408\u3001\u53e4\u3044\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u306f\u5b89\u5168\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u3001\u3042\u306a\u305f\u304c\u77e5\u3089\u306a\u3044\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\u304c\u3042\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3067\u3059\u3002\u3053\u308c\u3092\u4fee\u6b63\u3059\u308b\u306b\u306f\u3001\u6700\u65b0\u306e\u30d1\u30c3\u30c1\u3068\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3067\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3092\u5b9a\u671f\u7684\u306b\u66f4\u65b0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u65b0\u3057\u3044\u8106\u5f31\u6027\u304c\u5e38\u306b\u767a\u898b\u3055\u308c\u308b\u305f\u3081\u3001\u3053\u308c\u306f\u96e3\u3057\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u30cf\u30c3\u30ab\u30fc\u306f\u3053\u308c\u3089\u306e\u8106\u5f31\u6027\u3092\u5229\u7528\u3057\u3066\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3092\u30cf\u30c3\u30ad\u30f3\u30b0\u3057\u3001\u60c5\u5831\u3092\u76d7\u3080\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u4e00\u90e8\u306e\u653b\u6483\u8005\u306f\u3001DDoS\u3092\u4f7f\u7528\u3057\u3066\u76ee\u6a19\u3092\u9054\u6210\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u3044\u304f\u3064\u304b\u306e\u969c\u5bb3\u304c\u3042\u308a\u307e\u3059\u3002\u30aa\u30f3\u30d7\u30ec\u30df\u30b9\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u653b\u6483\u306e\u767a\u751f\u3092\u9632\u3050\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u653b\u6483\u304c\u30aa\u30f3\u30d7\u30ec\u30df\u30b9\u306e\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u88c5\u7f6e\u306b\u5230\u9054\u3059\u308b\u524d\u306b\u3001\u30dc\u30ea\u30e5\u30e1\u30c8\u30ea\u30c3\u30af\u653b\u6483\u304c\u53d7\u4fe1\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30d1\u30a4\u30d7\u3092\u8a70\u307e\u3089\u305b\u3001\u4e0a\u6d41\u306eISP\u304c\u5727\u5012\u3055\u308c\u3001\u3059\u3079\u3066\u306e\u53d7\u4fe1\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u30d6\u30e9\u30c3\u30af\u30db\u30fc\u30eb\u5316\u3057\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u304b\u3089\u5207\u65ad\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.\u00a0<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"how-to-defend-against-ddos-attacks\">DDoS\u653b\u6483\u304b\u3089\u9632\u5fa1\u3059\u308b\u65b9\u6cd5<\/h2>\n\n\n<p>DDoS\u653b\u6483\u304b\u3089\u9632\u5fa1\u3059\u308b\u65b9\u6cd5\u306f\u305f\u304f\u3055\u3093\u3042\u308a\u307e\u3059\u3002\u6700\u3082\u91cd\u8981\u306a\u3053\u3068\u306f\u3001\u653b\u6483\u3055\u308c\u308b\u524d\u306b\u8a08\u753b\u3092\u7acb\u3066\u3066\u304a\u304f\u3053\u3068\u3067\u3059\u3002.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"increase-bandwidth\">\u5e2f\u57df\u5e45\u3092\u5897\u3084\u3059<\/h3>\n\n\n<p>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u304c\u5927\u91cf\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u51e6\u7406\u3067\u304d\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u306f\u3001DDoS\u653b\u6483\u304b\u3089\u81ea\u5206\u3092\u5b88\u308b\u305f\u3081\u306b\u3067\u304d\u308b\u6700\u3082\u91cd\u8981\u306a\u3053\u3068\u306e1\u3064\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u8ab0\u304b\u304c\u3042\u306a\u305f\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u30cf\u30c3\u30ad\u30f3\u30b0\u3057\u305f\u3068\u304d\u306b\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u4e88\u671f\u3057\u306a\u3044\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30b9\u30d1\u30a4\u30af\u306b\u5099\u3048\u308b\u3079\u304d\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u5e2f\u57df\u5e45\u3092\u5897\u3084\u3059\u3053\u3068\u304c\u5e38\u306bDDoS\u653b\u6483\u304b\u3089\u4fdd\u8b77\u3055\u308c\u308b\u3053\u3068\u3092\u610f\u5473\u3059\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<p>\u5e2f\u57df\u5e45\u3092\u5897\u3084\u3059\u3068\u3001\u653b\u6483\u8005\u304c\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u4fb5\u5165\u3059\u308b\u306e\u304c\u96e3\u3057\u304f\u306a\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u3055\u307e\u3056\u307e\u306a\u5bfe\u7b56\u3092\u4f7f\u7528\u3057\u3066\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"set-serverlevel-ddos-mitigation\">\u30b5\u30fc\u30d0\u30fc\u30ec\u30d9\u30eb\u306eDDoS\u8efd\u6e1b\u3092\u8a2d\u5b9a\u3059\u308b<\/h3>\n\n\n<p>\u4e00\u90e8\u306e\u30a6\u30a7\u30d6\u30db\u30b9\u30c8\u306b\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u30ec\u30d9\u30eb\u3067DDoS\u8efd\u6e1b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u6a5f\u80fd\u306f\u5e38\u306b\u5229\u7528\u53ef\u80fd\u3067\u306f\u306a\u3044\u305f\u3081\u3001\u30a6\u30a7\u30d6\u30db\u30b9\u30c8\u306b\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u305d\u308c\u304c\u7121\u6599\u306e\u30b5\u30fc\u30d3\u30b9\u304b\u3001\u6599\u91d1\u304c\u304b\u304b\u308b\u304b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u306e\u30b5\u30fc\u30d3\u30b9\u306e\u5229\u7528\u53ef\u80fd\u6027\u306f\u3001\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u3068\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u30d7\u30e9\u30f3\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"move-to-cloudbased-hosting\">\u30af\u30e9\u30a6\u30c9\u30d9\u30fc\u30b9\u306e\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u79fb\u884c\u3059\u308b<\/h3>\n\n\n<p>\u30af\u30e9\u30a6\u30c9\u30d9\u30fc\u30b9\u306e\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306f\u3001\u30af\u30e9\u30a6\u30c9\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u4f7f\u7528\u3057\u3066\u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u30a6\u30a7\u30d6\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306e\u4e00\u7a2e\u3067\u3059\u3002\u30af\u30e9\u30a6\u30c9\u30d9\u30fc\u30b9\u306e\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306f\u3001\u5f93\u6765\u306e\u30a6\u30a7\u30d6\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3088\u308a\u3082\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u3067\u4fe1\u983c\u6027\u304c\u9ad8\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u30af\u30e9\u30a6\u30c9\u30d9\u30fc\u30b9\u306e\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306e\u5229\u70b9\u306e1\u3064\u306f\u3001DDoS\u653b\u6483\u306b\u5bfe\u3057\u3066\u3088\u308a\u8010\u6027\u304c\u3042\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u30af\u30e9\u30a6\u30c9\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u304cDDoS\u653b\u6483\u3092\u5438\u53ce\u3057\u3001\u504f\u5411\u3059\u308b\u305f\u3081\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u6301\u3063\u3066\u3044\u308b\u305f\u3081\u3067\u3059\u3002.<\/p>\n\n\n<h3 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id=\"use-a-content-delivery-network-cdn\">\u30b3\u30f3\u30c6\u30f3\u30c4\u914d\u4fe1\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08CDN\uff09\u3092\u4f7f\u7528\u3059\u308b<\/h3>\n\n\n<p>CDN\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u5730\u7406\u7684\u4f4d\u7f6e\u306b\u57fa\u3065\u3044\u3066\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u914d\u4fe1\u3059\u308b\u30b5\u30fc\u30d0\u30fc\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u3059\u3002CDN\u306f\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u3001DDoS\u653b\u6483\u304b\u3089\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n\n\n<p>CDN\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u9759\u7684\u30b3\u30f3\u30c6\u30f3\u30c4\u304cCDN\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u4f4d\u7f6e\u306b\u6700\u3082\u8fd1\u3044\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u914d\u4fe1\u3055\u308c\u307e\u3059\u3002CDN\u306f\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u3001DDoS\u653b\u6483\u304b\u3089\u4fdd\u8b77\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u8907\u6570\u306eCDN\u3092\u4f7f\u7528\u3057\u3066\u3001\u4e16\u754c\u4e2d\u306e\u7570\u306a\u308b\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u9759\u7684\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u914d\u4fe1\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306f\u3088\u308a\u4fe1\u983c\u6027\u304c\u9ad8\u304f\u3001\u5f37\u529b\u306b\u306a\u308a\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u30de\u30eb\u30c1CDN\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u8907\u6570\u306eCDN\u30d9\u30f3\u30c0\u30fc\u304c\u63d0\u4f9b\u3059\u308bPoP\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"blackhole-routing\">\u30d6\u30e9\u30c3\u30af\u30db\u30fc\u30eb\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0<\/h3>\n\n\n<p>\u30d6\u30e9\u30c3\u30af\u30db\u30fc\u30eb\u30eb\u30fc\u30c8\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406\u8005\u304c\u307b\u307c\u3059\u3079\u3066\u306e\u554f\u984c\u306b\u5bfe\u51e6\u3059\u308b\u305f\u3081\u306e\u512a\u308c\u305f\u65b9\u6cd5\u3067\u3059\u3002\u8907\u96d1\u306a\u30eb\u30fc\u30eb\u306a\u3057\u3067\u30d6\u30e9\u30c3\u30af\u30db\u30fc\u30eb\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u304c\u884c\u308f\u308c\u308b\u5834\u5408\u3001\u30cc\u30eb\u30eb\u30fc\u30c8\u304c\u4f7f\u7528\u3055\u308c\u3066\u826f\u3044\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3068\u60aa\u3044\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u4e21\u65b9\u3092\u62d2\u5426\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p>DDoS\u653b\u6483\u304c\u30b5\u30fc\u30d0\u30fc\u3092\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u3059\u308b\u5834\u5408\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\uff08ISP\uff09\u306f\u3001\u30b5\u30a4\u30c8\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u3059\u3079\u3066\u30d6\u30e9\u30c3\u30af\u30db\u30fc\u30eb\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3057\u3066\u653b\u6483\u3092\u6b62\u3081\u3088\u3046\u3068\u3059\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u7406\u60f3\u7684\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u306a\u305c\u306a\u3089\u3001\u653b\u6483\u8005\u304c\u671b\u3093\u3067\u3044\u308b\u3053\u3068\u3001\u3064\u307e\u308a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u5229\u7528\u4e0d\u80fd\u306b\u3059\u308b\u3053\u3068\u3092\u5b9f\u73fe\u3057\u3066\u3057\u307e\u3046\u304b\u3089\u3067\u3059\u3002.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"use-a-web-application-firewall-waf\">\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\uff08WAF\uff09\u3092\u4f7f\u7528\u3059\u308b<\/h3>\n\n\n<p>WAF\u306f\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u653b\u6483\u304b\u3089\u4fdd\u8b77\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u4e00\u7a2e\u3067\u3059\u3002WAF\u306f\u3001\u53d7\u4fe1\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u691c\u67fb\u3057\u3001\u60aa\u610f\u306e\u3042\u308b\u30b3\u30fc\u30c9\u3092\u542b\u3080\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30d6\u30ed\u30c3\u30af\u307e\u305f\u306f\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p>WAF\u3092\u4f7f\u7528\u3057\u3066\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092DDoS\u653b\u6483\u304b\u3089\u4fdd\u8b77\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001WAF\u304c\u9069\u5207\u306b\u69cb\u6210\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u3046\u3067\u306a\u3044\u3068\u3001\u6b63\u5f53\u306a\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"monitor-your-network-for-unusual-activity\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u7570\u5e38\u306a\u6d3b\u52d5\u3092\u76e3\u8996\u3059\u308b<\/h3>\n\n\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u7570\u5e38\u306a\u6d3b\u52d5\u3092\u76e3\u8996\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u306f\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u6025\u5897\u3084\u5947\u5999\u306a\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u76e3\u8996\u304c\u542b\u307e\u308c\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u7570\u5e38\u306a\u6d3b\u52d5\u306b\u6c17\u4ed8\u3044\u305f\u5834\u5408\u306f\u3001\u3059\u3050\u306b\u8abf\u67fb\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u306f\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304c\u653b\u6483\u3092\u53d7\u3051\u3066\u3044\u308b\u5146\u5019\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"in-a-nutshell\"><strong>\u8981\u3059\u308b\u306b<\/strong><\/h2>\n\n\n<p>DDoS\u653b\u6483\u306f\u3001\u4f01\u696d\u306b\u3068\u3063\u3066\u58ca\u6ec5\u7684\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u3001\u53ce\u76ca\u306e\u640d\u5931\u3001\u8a55\u5224\u306e\u640d\u50b7\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u3057\u304b\u3057\u3001\u30b5\u30fc\u30d0\u30fc\u30ec\u30d9\u30eb\u306eDDoS\u8efd\u6e1b\u3001\u30af\u30e9\u30a6\u30c9\u30d9\u30fc\u30b9\u306e\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3001\u30ec\u30fc\u30c8\u5236\u9650\u3001CDN\u306e\u4f7f\u7528\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u5bfe\u7b56\u3092\u4f7f\u7528\u3057\u3066\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092DDoS\u653b\u6483\u304b\u3089\u4fdd\u8b77\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u7570\u5e38\u306a\u6d3b\u52d5\u3092\u76e3\u8996\u3057\u3001\u7591\u308f\u3057\u3044\u6d3b\u52d5\u3092\u3059\u3050\u306b\u8abf\u67fb\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u624b\u9806\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3067\u3001DDoS\u653b\u6483\u306b\u76f4\u9762\u3057\u3066\u3082\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304c\u30e6\u30fc\u30b6\u30fc\u306b\u5229\u7528\u53ef\u80fd\u3067\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u3067\u3042\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"ddos-attack-faqs\">DDoS\u653b\u6483\u306eFAQ<\/h2>\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\">\n<div id=\"faq-question-1659357825601\" class=\"schema-faq-section\"><strong class=\"schema-faq-question\">DDoS\u653b\u6483\u3092\u884c\u3046\u306e\u306f\u7c21\u5358\u3067\u3059\u304b\uff1f<\/strong>\n<p class=\"schema-faq-answer\">DDoS\u653b\u6483\u306f\u8907\u96d1\u3067\u3001\u3042\u308b\u7a0b\u5ea6\u306e\u6280\u8853\u7684\u5c02\u9580\u77e5\u8b58\u304c\u5fc5\u8981\u3067\u3059\u3002\u3057\u304b\u3057\u3001DDoS-for-hire\u30b5\u30fc\u30d3\u30b9\u306b\u3088\u308a\u3001\u8ab0\u3067\u3082\u7c21\u5358\u306b\u653b\u6483\u3092\u958b\u59cb\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002.<\/p>\n<\/div>\n<div id=\"faq-question-1659357852139\" class=\"schema-faq-section\"><strong class=\"schema-faq-question\">DDoS\u653b\u6483\u306e\u76ee\u7684\u306f\u4f55\u3067\u3059\u304b\uff1f<\/strong>\n<p class=\"schema-faq-answer\">DDoS\u653b\u6483\u306e\u76ee\u7684\u306f\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u5229\u7528\u4e0d\u80fd\u306b\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u653b\u6483\u8005\u306f\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u3092\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3084\u30ea\u30af\u30a8\u30b9\u30c8\u3067\u5727\u5012\u3059\u308b\u3053\u3068\u3067\u3053\u308c\u3092\u884c\u3044\u307e\u3059\u3002.<\/p>\n<\/div>\n<div id=\"faq-question-1659357876258\" class=\"schema-faq-section\"><strong class=\"schema-faq-question\">DDoS\u653b\u6483\u306f\u3069\u306e\u304f\u3089\u3044\u7d9a\u304d\u307e\u3059\u304b\uff1f<\/strong>\n<p class=\"schema-faq-answer\">DDoS\u653b\u6483\u306f\u3001\u6570\u6642\u9593\u307e\u305f\u306f\u6570\u65e5\u306b\u308f\u305f\u3063\u3066\u7d9a\u304f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u653b\u6483\u306e\u671f\u9593\u306f\u3001\u653b\u6483\u8005\u306e\u76ee\u7684\u3068\u5229\u7528\u53ef\u80fd\u306a\u30ea\u30bd\u30fc\u30b9\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002.<\/p>\n<\/div>\n<div id=\"faq-question-1659357899750\" class=\"schema-faq-section\"><strong class=\"schema-faq-question\">DDoS\u306f\u60c5\u5831\u3092\u76d7\u3080\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304b\uff1f<\/strong>\n<p class=\"schema-faq-answer\">DDoS\u653b\u6483\u306f\u60c5\u5831\u3092\u76d7\u3080\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u3057\u304b\u3057\u3001DDoS\u653b\u6483\u306f\u3001\u30c7\u30fc\u30bf\u6f0f\u6d29\u306a\u3069\u306e\u4ed6\u306e\u30bf\u30a4\u30d7\u306e\u653b\u6483\u304c\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u9593\u306bIT\u30b9\u30bf\u30c3\u30d5\u306e\u6ce8\u610f\u3092\u305d\u3089\u3059\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<\/div>\n<div id=\"faq-question-1659357945762\" class=\"schema-faq-section\"><strong class=\"schema-faq-question\">VPN\u306fDDoS\u304b\u3089\u4fdd\u8b77\u3057\u307e\u3059\u304b\uff1f<\/strong>\n<p class=\"schema-faq-answer\">VPN\u306f\u3001IP\u30a2\u30c9\u30ec\u30b9\u3092\u96a0\u3059\u3053\u3068\u3067\u653b\u6483\u8005\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u7279\u5b9a\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30d0\u30a4\u30b9\u3092DDoS\u653b\u6483\u304b\u3089\u4fdd\u8b77\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u653b\u6483\u3092\u5b8c\u5168\u306b\u6b62\u3081\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002.<\/p>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>\u5206\u6563\u578b\u30b5\u30fc\u30d3\u30b9\u62d2\u5426\uff08DDoS\uff09\u653b\u6483\u3068\u306f\u3001\u8907\u6570\u306e\u30bd\u30fc\u30b9\u304b\u3089\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3067\u30aa\u30f3\u30e9\u30a4\u30f3\u30b5\u30fc\u30d3\u30b9\u3092\u5727\u5012\u3057\u3001\u5229\u7528\u4e0d\u80fd\u306b\u3057\u3088\u3046\u3068\u3059\u308b\u60aa\u610f\u306e\u3042\u308b\u8a66\u307f\u3067\u3059\u3002\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f... <a class=\"more-link\" href=\"https:\/\/securitybriefing.net\/ja\/%e3%83%89%e3%82%b9\/ddos%e6%94%bb%e6%92%83%e3%81%a8%e3%81%af\/\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"screen-reader-text\">DDoS\u653b\u6483\u3068\u306f\u4f55\u304b\uff1f\u5b8c\u5168\u30ac\u30a4\u30c9<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":477,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-474","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ddos","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What is a DDoS Attack? A Complete Guide | securitybriefing.net<\/title>\n<meta name=\"description\" content=\"DDoS attacks are on the rise. Learn what they are, how they work, and how you can protect your organization from them.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/securitybriefing.net\/ja\/\u30c9\u30b9\/ddos\u653b\u6483\u3068\u306f\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is a DDoS Attack? A Complete Guide | securitybriefing.net\" \/>\n<meta property=\"og:description\" content=\"DDoS attacks are on the rise. 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