{"id":4289,"date":"2013-04-03T09:39:23","date_gmt":"2013-04-03T01:39:23","guid":{"rendered":"https:\/\/blog.trendmicro.com.tw\/?p=4289"},"modified":"2013-03-25T11:12:19","modified_gmt":"2013-03-25T03:12:19","slug":"%e6%b6%88%e9%99%a4dns%e5%8f%8d%e5%b0%84%e9%98%bb%e6%96%b7%e5%bc%8f%e6%94%bb%e6%93%8a-denial-of-service-attacks","status":"publish","type":"post","link":"https:\/\/blog.trendmicro.com.tw\/?p=4289","title":{"rendered":"\u6d88\u9664DNS\u53cd\u5c04\u963b\u65b7\u5f0f\u653b\u64ca (Denial-of-Service Attacks)"},"content":{"rendered":"<p>\u4f5c\u8005\uff1a<a href=\"https:\/\/blog.trendmicro.com\/trendlabs-security-intelligence\/author\/ben-april\/\">Ben April\uff08\u8cc7\u6df1\u5a01\u8105\u7814\u7a76\u54e1\uff09<\/a><\/p>\n<p>\u76ee\u524d\uff0c<a href=\"https:\/\/www.trendmicro.com.tw\/edm\/Tracking.asp?id=2651&amp;name=20110916\">\u8da8\u52e2\u79d1\u6280<\/a>\u770b\u5230\u5229\u7528DNS\u53cd\u5c04\uff08reflection\uff09\u6216\u653e\u5927\uff08amplification\uff09\u6280\u8853\u4f86\u9032\u884c\u963b\u65b7\u5f0f\u653b\u64ca\u7684\u6578\u91cf\u7bc0\u7bc0\u6500\u5347\u3002\u6709\u8a31\u591a\u7a2e\u8b8a\u5f62\uff0c\u4f46\u653b\u64ca\u6a21\u5f0f\u5927\u81f4\u662f\u4e00\u6a23\u7684\uff1a<\/p>\n<ol>\n<li>\u653b\u64ca\u8005\u507d\u9020\u4f86\u6e90IP\u5730\u5740\uff08\u4f86\u81ea\u76ee\u6a19\u53d7\u5bb3\u8005\uff09\u4f86\u767c\u51faDNS\u67e5\u8a62\u5c01\u5305\u3002\uff08\u53ef\u4ee5\u5c07\u9019\u5b83\u60f3\u6210\u4f7f\u7528\u5047\u7684\u9000\u4fe1\u5730\u5740\u3002\uff09<\/li>\n<li>\u67e5\u8a62\u5c01\u5305\u767c\u9001\u5230\u63a5\u53d7\u5916\u90e8\u7db2\u8def\u67e5\u8a62\u7684DNS\u4f3a\u670d\u5668\uff08\u4e5f\u5c31\u662f\u4f4d\u5728\u4e0d\u540c\u7684ISP\/\u7db2\u8def\uff0c\u800c\u975e\u81ea\u5df1\u7684\u7db2\u8def\uff09\u3002\u6b64\u5916\uff0c\u4e5f\u6703\u60f3\u8fa6\u6cd5\u8b93\u9019DNS\u67e5\u8a62\u5c01\u5305\u53ef\u4ee5\u76e1\u53ef\u80fd\u5730\u7522\u751f\u6700\u5927\u7684\u56de\u61c9\u3002\u901a\u5e38\u6703\u4f7f\u7528DNSSEC\uff0c\u56e0\u70ba\u5b83\u6240\u56de\u61c9\u7684\u5c01\u5305\u6703\u6bd4\u5176\u4ed6DNS\u56de\u61c9\u5c01\u5305\u8981\u5927\u5f97\u591a\u3002<\/li>\n<li>\u76ee\u6a19\u53d7\u5bb3\u8005\u6703\u63a5\u6536\u5230\u904e\u591a\u7684\u5c01\u5305\u3002\u6709\u4f86\u81eaDNS\u4f3a\u670d\u5668\u7684\u56de\u61c9\u5c01\u5305\uff0c\u6216\u662f\u9001\u56de\u7d66\u300c\u767c\u9001\u8005\u300d\u7684\u932f\u8aa4\u8a0a\u606f\u3002<\/li>\n<li>\u900f\u904eDNS\u53cd\u5c04\uff08reflection\uff09\u6280\u8853\uff0c\u53ef\u4ee5\u7528\u76f8\u8f03\u8d77\u4f86\u8f03\u5c11\u91cf\u7684\u6a5f\u5668\uff08\u901a\u5e38\u662f\u7528\u88ab\u5165\u4fb5\u6dea\u9677\u7684\u6a5f\u5668\uff09\u4f86\u5c0d\u53d7\u5bb3\u8005\u7522\u751f\u5de8\u5927\u7684\u6d41\u91cf\u3002\u5728\u4e00\u822c\u60c5\u6cc1\u4e0b\uff0c\u88ab\u6feb\u7528\u7684DNS\u4f3a\u670d\u5668\u751a\u81f3\u4e0d\u6703\u77e5\u9053\u81ea\u5df1\u6b63\u5728\u53c3\u8207\u653b\u64ca\u3002<\/li>\n<li>\u9019\u985e\u578b\u7684\u653b\u64ca\u5f88\u96e3\u88ab\u8ffd\u8e2a\uff0c\u56e0\u70ba\u4f86\u6e90IP\u5730\u5740\u5df2\u7d93\u662f\u8b8a\u9020\u904e\u7684\u3002\u4f60\u9700\u8981DNS\u4f3a\u670d\u5668\u7ba1\u7406\u8005\u548c\u4ed6\u5011\u7db2\u8def\u670d\u52d9\u4f9b\u61c9\u5546\u7684\u5927\u529b\u5354\u52a9\u624d\u6709\u8fa6\u6cd5\u8ffd\u67e5\u653b\u64ca\u4f86\u6e90\u3002<\/li>\n<\/ol>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" alt=\"\" src=\"https:\/\/blog.trendmicro.com.tw\/wp-content\/uploads\/2013\/01\/attack.jpg\" width=\"451\" height=\"300\" \/><\/p>\n<p>\u7db2\u8def\u71df\u904b\u5546\u548cDNS\u4f3a\u670d\u5668\u7ba1\u7406\u8005\u90fd\u53ef\u4ee5\u5e6b\u5fd9\u6d88\u9664\u9019\u4e9b\u653b\u64ca\u3002<\/p>\n<p><b><i>\u7db2\u8def\u71df\u904b\u5546<\/i><\/b><\/p>\n<p>\u64da\u4f30\u8a08\uff0c\u670914.1%\u7684\u7db2\u6bb5\uff0c\u4f54\u6240\u6709IP\u5730\u5740\u768416.8%\u88ab\u7528\u4f86\u9020\u5047\u3002\u9019\u807d\u8d77\u4f86\u5f88\u5c11\uff0c\u4f46\u7db2\u969b\u7db2\u8def\u662f\u500b\u5f88\u5927\u7684\u5730\u65b9\u3002\u4f7f\u7528DNS\u53cd\u5c04\u653b\u64ca\u6703\u9020\u6210\u5f88\u5927\u7684\u50b7\u5bb3\uff0c\u5373\u4f7f\u53ea\u7528\u5230\u9060\u5c0f\u65bc1%\u7684IP\u5730\u5740\u3002<\/p>\n<p>\u5728\u8def\u7531\u5668\u6216\u9632\u706b\u7246\u4e0a\u555f\u52d5\u5165\u53e3\u904e\u6ffe\uff08Ingress 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href=\"https:\/\/tools.ietf.org\/html\/bcp38\">BCP-38<\/a>\uff0c\u5b83\u8a73\u7d30\u4ecb\u7d39\u4e86\u5982\u4f55\u5be6\u73fe\u9019\u985e\u578b\u7684\u904e\u6ffe\u3002<\/p>\n<p><b><i>DNS<\/i><\/b><b><i>\u4f3a\u670d\u5668\u7ba1\u7406\u8005<\/i><\/b><\/p>\n<p>\u7db2\u8def\u71df\u904b\u5546\u7684DNS\u4f3a\u670d\u5668\u5728\u5c0d\u4ed8\u9019\u7a2e\u5a01\u8105\u4e0a\u4e5f\u626e\u6f14\u4e86\u4e00\u5b9a\u7684\u89d2\u8272\u3002\u5982\u679c\u4f60\u7ba1\u7406\u53ef\u4ee5\u958b\u653e\u8b93\u5916\u90e8\u67e5\u8a62\u7684DNS\u4f3a\u670d\u5668\uff0c\u90a3\u4f60\u7684\u78ba\u61c9\u8a72\u5141\u8a31\u7db2\u8def\u4e0a\u7684\u4efb\u610f\u6a5f\u5668\u4f86\u67e5\u8a62\u4f60\u5e95\u4e0b\u4f3a\u670d\u5668\u7684\u7db2\u57df\u3002\u4f46\u5982\u679c\u662f\u90a3\u4e9b\u4e0d\u5c6c\u65bc\u4f60\u7684\u7db2\u57df\u5462\uff1f<\/p>\n<p><!--more--><\/p>\n<p>\u8b93\u7db2\u8def\u4e0a\u7684\u4efb\u610fIP\u4f86\u5411\u4f60\u7684DNS\u4f3a\u670d\u5668\u67e5\u8a62\u7db2\u5740\uff08\u6bd4\u65b9\u8aaa<a href=\"https:\/\/www.trendmicro.com\/\">www.trendmicro.com<\/a>\uff09\u7684IP\u4f3c\u4e4e\u6c92\u4ec0\u9ebc\u58de\u8655\u3002\u5982\u679c\u4e0d\u8003\u616e\u5230\u4f86\u6e90\u7684IP\u5730\u5740\u53ef\u80fd\u662f\u5047\u9020\u7684\uff0c\u90a3\u7684\u78ba\u662f\u6c92\u6709\u5bb3\u8655\u3002\u7136\u800c\uff0c\u6b63\u56e0\u70ba\u7121\u6cd5\u9a57\u8b49\u4f86\u81ea\u5916\u90e8\u7db2\u8def\u9032\u884c\u67e5\u8a62\u7684\u4f86\u6e90IP\u5730\u5740\u771f\u5be6\u6027\uff0c\u5c31\u6c92\u6709\u8fa6\u6cd5\u5206\u8fa8\u5c0d\u4f60\u7684\u4f3a\u670d\u5668\u9032\u884c\u67e5\u8a62\u7684\u5c01\u5305\uff0c\u662f\u771f\u6b63\u7121\u5bb3\u6216\u662f\u653b\u64ca\u7684\u4e00\u90e8\u5206\u3002<\/p>\n<p>\u4e00\u7a2e\u5c0d\u9019\u554f\u984c\u7684\u5e38\u898b\u89e3\u6c7a\u65b9\u6cd5\u662f\u8a2d\u7f6e\u5169\u500b\u540d\u7a31\u4f3a\u670d\u5668\u3002\u4e00\u500b\u6703\u56de\u61c9\u6240\u6709\u5c0d\u4f60\u6240\u638c\u63a7\u6a5f\u5668\u7db2\u5740\u7684\u67e5\u8a62\uff0c\u800c\u5ffd\u7565\u5c0d\u5176\u4ed6\u4efb\u4f55\u7db2\u57df\u7684\u67e5\u8a62\u8acb\u6c42\u3002\u7b2c\u4e8c\u500b\u5247\u63d0\u4f9b\u7d66\u6240\u6709\u4f60\u7db2\u8def\u7684\u4f7f\u7528\u8005\uff0c\u63d0\u4f9b\u4ed6\u5011\u6240\u53bb\u7db2\u7ad9\u7684\u540d\u7a31\u89e3\u6790\u67e5\u8a62\u3002\uff08\u53ef\u4ee5\u53ea\u7528\u4e00\u53f0\u4f3a\u670d\u5668\uff0c\u4f46\u8a2d\u5b9a\u4e0a\u6703\u66f4\u52a0\u8907\u96dc\u3002\uff09<\/p>\n<p><em id=\"__mceDel\">\u5982\u679c\u56e0\u70ba\u67d0\u4e9b\u539f\u56e0\u8b93\u4f60\u5fc5\u9808\u958b\u653eDNS\u4f3a\u670d\u5668\uff0c\u8acb\u8003\u616e\u9650\u5236\u67e5\u8a62\u901f\u7387\uff0c\u4ee5\u9632\u6b62\u88ab\u6feb\u7528\u3002<\/em><\/p>\n<p>&nbsp;<\/p>\n<p>\uff20\u539f\u6587\u51fa\u8655\uff1a<a href=\"https:\/\/blog.trendmicro.com\/trendlabs-security-intelligence\/mitigating-dns-reflection-denial-of-service-attacks\/\">Mitigating DNS Reflection Denial-of-Service Attacks<\/a><\/p>\n<p>\u60f3\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u7db2\u8def\u5b89\u5168\u7684\u79d8\u8a23\u548c\u5efa\u8b70\uff0c\u53ea\u8981\u5230<a href=\"https:\/\/www.facebook.com\/trendmicrotaiwan\">\u8da8\u52e2\u79d1\u6280\u7c89\u7d72\u7db2\u9801<\/a> \u6216\u4e0b\u9762\u7684\u6309\u9215\u6309\u8b9a<br \/>\n<iframe loading=\"lazy\" style=\"width: 350px; height: 62px; overflow: hidden;\" src=\"https:\/\/www.facebook.com\/plugins\/likebox.php?id=255176705131&amp;width=350&amp;connections=0&amp;stream=false&amp;header=false&amp;height=62\" height=\"240\" width=\"320\" frameborder=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/www.trendmicro.com.tw\/edm\/Tracking.asp?id=2928&amp;name=20120702\"><img loading=\"lazy\" decoding=\"async\" alt=\"APT \u653b\u64ca\" src=\"https:\/\/www.trendmicro.com.tw\/apt\/tw\/images\/banner.jpg\" width=\"500\" height=\"150\" border=\"0\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<div><strong>\u25ce\u5373\u523b\u52a0\u5165\u8da8\u52e2\u79d1\u6280\u793e\u7fa4\u7db2\u7ad9,\u7cbe\u5f69\u4e0d\u6f0f\u7db2<\/strong><\/div>\n<div><strong>\u00a0<\/strong><a href=\"https:\/\/www.trendmicro.com.tw\/edm\/Tracking.asp?id=2762&amp;name=20111213\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.trendmicro.com.tw\/campaign\/tw_blog_images\/blogad\/FBICON.PNG\" \/><\/a> <a href=\"https:\/\/www.trendmicro.com.tw\/edm\/Tracking.asp?id=2763&amp;name=20111213\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.trendmicro.com.tw\/campaign\/tw_blog_images\/blogad\/plurk.PNG\" \/><\/a> <a href=\"https:\/\/www.trendmicro.com.tw\/edm\/Tracking.asp?id=2764&amp;name=20111213\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.trendmicro.com.tw\/campaign\/tw_blog_images\/blogad\/YOUTUBE.PNG\" \/><\/a><a href=\"https:\/\/www.trendmicro.com.tw\/edm\/Tracking.asp?id=2766&amp;name=20111213\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.trendmicro.com.tw\/campaign\/tw_blog_images\/blogad\/G+.PNG\" \/><\/a> <a href=\"https:\/\/www.trendmicro.com.tw\/edm\/Tracking.asp?id=2765&amp;name=20111213\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.trendmicro.com.tw\/campaign\/tw_blog_images\/blogad\/RSS.PNG\" \/><\/a><\/div>\n<div id=\"toolbar-box\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u4f5c\u8005\uff1aBen April\uff08\u8cc7\u6df1\u5a01\u8105\u7814\u7a76\u54e1\uff09 \u76ee\u524d\uff0c\u8da8\u52e2\u79d1\u6280\u770b\u5230\u5229\u7528DNS\u53cd\u5c04\uff08reflection\uff09\u6216\u653e\u5927\uff08a [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_wpscppro_dont_share_socialmedia":false,"_wpscppro_custom_social_share_image":0,"_facebook_share_type":"","_twitter_share_type":"","_linkedin_share_type":"","_pinterest_share_type":"","_linkedin_share_type_page":"","_instagram_share_type":"","_medium_share_type":"","_threads_share_type":"","_google_business_share_type":"","_selected_social_profile":[],"_wpsp_enable_custom_social_template":false,"_wpsp_social_scheduling":{"enabled":false,"datetime":null,"platforms":[],"status":"template_only","dateOption":"today","timeOption":"now","customDays":"","customHours":"","customDate":"","customTime":"","schedulingType":"absolute"},"_wpsp_active_default_template":true},"categories":[332],"tags":[333,961,2291,960],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/4289"}],"collection":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4289"}],"version-history":[{"count":0,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/4289\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4289"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4289"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4289"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}