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\u8fd1\u671fOpenAI<\/a>\u79f0\u7531\u4e8e\u906d\u53d7\u5206\u5e03\u5f0f\u62d2\u7edd\u670d\u52a1\u653b\u51fb\uff08DDoS\uff09\u5bfc\u81f4\u7f51\u7edc\u548c\u670d\u52a1\u5668\u8d85\u8f7d,\u4f7f\u5f97ChatGPT<\/a>\u5468\u671f\u6027\u670d\u52a1\u4e2d\u65ad\u3002\u653b\u51fb\u8005\u9700\u8981\u63a7\u5236\u591a\u5c11\u8d44\u6e90\u624d\u80fd\u8ba9OpenAI\u5f3a\u5927\u7684\u7f51\u7edc\u8d85\u8d1f\u8377\u5462\uff1f\u4e8b\u5b9e\u4e0a\uff0c\u6709\u4e9b\u62d2\u7edd\u670d\u52a1\u7684\u653b\u51fb\u8005\u4e0d\u9700\u8981\u63a7\u5236\u5927\u91cf\u50f5\u5c38\u8282\u70b9\u3002\u57df\u540d\u670d\u52a1\u7cfb\u7edf\uff08DNS\uff09\u4f5c\u4e3a\u4e00\u79cd\u5f00\u653e\u7684\u8d44\u6e90\uff0c\u5e38\u5e38\u88ab\u653b\u51fb\u8005\u6ee5\u7528\u4e3a\u5f3a\u5927\u7684\u7f51\u7edc\u653b\u51fb\u6b66\u5668\u3002\u7136\u800c\uff0c\u4e0e\u4f20\u7edf\u5229\u7528DNS\u505a\u653e\u5927\u653b\u51fb\u7684\u65b9\u5f0f\u548c\u89c4\u6a21\u4e0d\u540c\uff0c\u672c\u6587\u7684\u653b\u51fb\u65b9\u6cd5\u53ef\u4ee5\u628a\u6d77\u91cf\u7684DNS\u670d\u52a1\u5668<\/a>\u7ea7\u8054\uff0c\u6784\u9020\u66f4\u5927\u89c4\u6a21\u7684\u62d2\u7edd\u670d\u52a1\u653b\u51fb\uff0c\u6211\u4eec\u53d6\u540d\u4e3a\u201c\u6d77\u5578\u4e4b\u738b\uff08TsuKing\uff09[6]\u201d\u3002<\/p>\n\n\n\n

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01\u57df\u540d\u89e3\u6790\u7cfb\u7edf\u7ed3\u6784\u7684\u590d\u6742\u53d8\u8fc1<\/strong><\/p>\n\n\n\n

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\"\"<\/figure>\n\n\n\n

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\"\"<\/figure>\n\n\n\n

\u56fe2 DRS\u7684\u6784\u6210<\/strong><\/p>\n\n\n\n

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\"\"<\/figure>\n\n\n\n

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02\u4ec0\u4e48\u662f\u6d77\u5578\u4e4b\u738b\uff08TsuKing\uff09<\/strong><\/p>\n\n\n\n

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TsuKing\u662f\u5229\u7528\u4e86DNS\u89e3\u6790\u7ed3\u6784\u7684\u590d\u6742\u6027\uff0c\u4ee5\u53ca\u4e00\u4e9bDRS\u5bf9\u4e8e\u8bf7\u6c42\u5904\u7406\u7684\u4e0d\u89c4\u8303\uff0c\u6765\u5f62\u6210\u6d41\u91cf\u653e\u5927\u653b\u51fb\u3002<\/strong>TsuKing\u7684\u653b\u51fb\u5c06\u5bfc\u81f4\u8bf8\u591aDRS\u53d1\u51fa\u5927\u91cf\u7684DNS\u8bf7\u6c42\uff0c\u6216\u8005\u8ba9\u53d7\u5bb3\u8005\u6536\u5230\u5de8\u91cf\u7684DNS\u8bf7\u6c42\uff1b\u524d\u8005\u9020\u6210\u6027\u80fd\u4e0a\u7684\u8d1f\u62c5\uff0c\u540e\u8005\u5e26\u6765\u5e26\u5bbd\u4e0a\u5f71\u54cd\uff0c\u6700\u7ec8\u76ee\u6807\u90fd\u662f\u5f62\u6210DoS\u653b\u51fb\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u56fe4 \u6d77\u5578\u4e4b\u738b\uff08TsuKing\uff09\u7684\u4e24\u90e8\u5206\u6838\u5fc3\u5185\u5bb9\uff08\u5de6\u4fa7\u4e3aTsu\uff0c\u53f3\u4fa7\u4e3aKing\uff09<\/strong><\/p>\n\n\n\n

1.Tsunami\uff1a\u91cd\u8bd5\u4e0e\u591a\u540e\u7aef\u67b6\u6784\u6240\u5f62\u6210\u7684\u653e\u5927\u80fd\u529b<\/strong><\/p>\n\n\n\n

\u5f53\u57df\u540d\u89e3\u6790\u56e0\u8d85\u65f6\u7b49\u539f\u56e0\u5931\u8d25\u65f6\uff0cDRS\u4f1a\u81ea\u7136\u5730\u53d1\u8d77\u91cd\u8bd5\uff0c\u8fd9\u4e9b\u91cd\u8bd5\u662f\u6d41\u91cf\u653e\u5927\u7684\u57fa\u7840\u3002\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u5355\u53f0\u670d\u52a1\u5668\u91cd\u8bd5\u7684\u653e\u5927\u80fd\u529b\u76f8\u5bf9\u6709\u9650\u3002\u4f46\u662f\uff0c\u67d0\u4e9b\u63d0\u4f9b\u5927\u89c4\u6a21\u516c\u5171\u89e3\u6790\u7684DNS\u7cfb\u7edf\u7ed3\u6784\u590d\u6742\uff0c\u7279\u522b\u662f\u591a\u540e\u7aef\u67b6\u6784\u53ef\u80fd\u52a0\u91cd\u6d41\u91cf\u653e\u5927\u98ce\u9669<\/strong>\uff1a\u7531\u4e8e\u6bcf\u6b21\u91cd\u8bd5\u8bf7\u6c42\u53ef\u80fd\u7531\u4e0d\u540c\u7684\u540e\u7aef\u8282\u70b9\u53d1\u51fa\uff08\u5982\u4e0b\u56fe\uff09\uff0c\u4e14\u4e0d\u540c\u7684\u540e\u7aef\u8282\u70b9\u5177\u5907\u72ec\u7acb\u7f13\u5b58 [4]\uff0c\u65e0\u6cd5\u5bf9\u540c\u4e00\u8bf7\u6c42\u7684\u91cd\u8bd5\u8fdb\u884c\u7edf\u7b79\u5904\u7406\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u56fe5 \u6709\u591a\u540e\u7aef\u7684DRS\u4f7f\u7528\u4e0d\u540c\u540e\u7aef\u8282\u70b9\u8fdb\u884c\u91cd\u8bd5<\/strong><\/p>\n\n\n\n

\u8fd9\u5c31\u597d\u6bd4\uff0c\u5f53\u4e00\u4e2a\u5403\u8354\u679d\u7684\u9700\u6c42\u6765\u5230\u4f9b\u5e94\u70b9\uff0c\u7b2c\u4e00\u4e2a\u4e1a\u52a1\u5458\u7532\uff08Egress #1\uff09\u7531\u4e8e\u5404\u79cd\u539f\u56e0\u6ca1\u80fd\u62ff\u5230\u8354\u679d\uff0c\u4f9b\u5e94\u70b9\u5c31\u4f1a\u518d\u6b21\u6d3e\u4e1a\u52a1\u5458\u4e59\uff08Egress #2\uff09\u53bb\u3002\u4e1a\u52a1\u5458\u7532\u3001\u4e59\u4e4b\u95f4\u5e76\u4e0d\u4f1a\u76f4\u63a5\u8054\u7cfb\uff0c\u4e5f\u4e0d\u4f1a\u53d1\u73b0\u4ed6\u4eec\u5904\u7406\u7684\u5176\u5b9e\u662f\u540c\u4e00\u7b14\u8ba2\u5355\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5728Tsunami\u8fc7\u7a0b\u4e2d\uff0c\u4e00\u4e2a\u8354\u679d\u8ba2\u5355\u88ab\u590d\u5236\u6210\u591a\u4e2a\u8ba2\u5355\u3002<\/p>\n\n\n\n

2.King\uff1a\u8bf7\u6c42\u91cd\u5b9a\u5411\u4e0e\u7ec4\u5408\u8c03\u5ea6<\/strong><\/p>\n\n\n\n

\u5bf9DNS\u8bf7\u6c42\u8fdb\u884c\u91cd\u5b9a\u5411\u7684\u64cd\u4f5c\uff0c\u4e0e\u4e00\u6b3e\u540d\u4e3aKing\u7684IP\u95f4\u65f6\u5ef6\u6d4b\u91cf\u5de5\u5177\u5f02\u66f2\u540c\u5de5\u3002\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u5176\u57fa\u672c\u539f\u7406\u662f\uff1a\u653b\u51fb\u8005\u4f1a\u5728\u81ea\u5df1\u7684\u6743\u5a01\u670d\u52a1\u5668\u4e0a\u52a8\u6001<\/strong>\u5730\u6784\u9020\u6076\u610f\u54cd\u5e94\uff0c\u800c\u8fd9\u4e2a\u54cd\u5e94\u662f\u4e00\u6761NS\u8bb0\u5f55<\/a>\uff0c\u81f4\u4f7fDRS\u5c06\u8bf7\u6c42\u8f6c\u53d1\u81f3\u5176\u4ed6\u7684DRS\uff0c\u4e0d\u65ad\u5730\u91cd\u590d\u8fd9\u4e2a\u8fc7\u7a0b\uff0c\u5c31\u4f1a\u6709\u8d8a\u6765\u8d8a\u591a\u7684DRS\u53c2\u4e0e\u5230\u89e3\u6790\u4e2d\u88ab\u7ec4\u5408\u5728\u4e00\u8d77<\/strong>\u5bfc\u81f4\u7ea7\u8054\u653e\u5927<\/strong>\u3002\u5982\u4e0b\u56fe\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u56fe6 \u653b\u51fb\u8005\u5229\u7528\u591a\u540e\u7aef\u7684\u91cd\u8bd5\u5b9e\u65bd\u7ec4\u5408\u8c03\u5ea6<\/strong><\/p>\n\n\n\n

\u8bd5\u60f3\u4e00\u4e0b\uff0c\u4f60\u662f\u4e00\u4e2a\u653b\u51fb\u8005\u5e76\u6210\u7acb\u4e86\u81ea\u5df1\u7684\u8354\u679d\u56ed\uff08attacker[.]com\u7684\u6743\u5a01\u670d\u52a1\u5668\uff09\u7136\u540e\u6545\u610f\u901a\u77e5\u67d0\u4e2a\u8354\u679d\u9053#1\uff08DRS#1\uff09\u8bf7\u6c42\u4f60\u81ea\u5df1\u54c1\u79cd\u7684\u8354\u679d\uff1a<\/p>\n\n\n\n

01<\/strong>\u8354\u679d\u9053#1\u4f1a\u6d3e\u4e1a\u52a1\u5458\u8bbf\u95ee\u4f60\u7684\u8354\u679d\u56ed\uff08\u6b65\u9aa4\u2460\uff09\uff0c\u4f46\u4f60\u5374\u6545\u610f\u8bf4\u8fd9\u79cd\u54c1\u79cd\u7684\u8354\u679d\u5728\u522b\u5904\uff0c\u8ba9\u4e1a\u52a1\u5458\u53bb\u5176\u4ed6\u67d0\u5904\uff08\u6b65\u9aa4\u2461\uff09\u3002<\/p>\n\n\n\n

02<\/strong>\u8fd9\u4e2a\u4e1a\u52a1\u5458\u4f1a\u53bb\u4f60\u6240\u63cf\u8ff0\u7684\u5730\u65b9\u7ee7\u7eed\u8bbf\u95ee\uff08\u6b65\u9aa4\u2462\uff09\uff0c\u4f46\u5b83\u4e0d\u77e5\u9053\u7684\u662f\uff0c\u90a3\u5e76\u4e0d\u662f\u4e00\u4e2a\u8354\u679d\u56ed\uff0c\u800c\u662f\u53e6\u4e00\u4e2a\u8354\u679d\u9053\uff08#2a\uff09\u7684\u5165\u53e3\u3002<\/p>\n\n\n\n

03<\/strong>\u8354\u679d\u9053#1\u4e0d\u89c1\u56de\u590d\uff0c\u4e8e\u662f\u6d3e\u51fa\u53e6\u5916\u4e00\u4e2a\u4e1a\u52a1\u5458\u518d\u6b21\u8bbf\u95ee\u4f60\u7684\u8354\u679d\u56ed\uff08\u6b65\u9aa4\u2463\uff09\uff0c\u800c\u8fd9\u4e00\u6b21\u4f60\u8ba9\u4e1a\u52a1\u5458\u53bb\u53c8\u4e00\u4e2a\u4e0d\u540c\u7684\u8354\u679d\u9053#2b\u5bfb\u627e\uff08\u6b65\u9aa4\u2464\uff09\u3002<\/p>\n\n\n\n

04<\/strong>\u5982\u679c\u8354\u679d\u9053#1\u4ecd\u4e0d\u653e\u5f03\uff0c\u8fd8\u8981\u6d3e\u51fa\u5176\u4ed6\u4e1a\u52a1\u5458\u627e\u4f60\uff0c\u90a3\u53d7\u4f60\u8499\u9a97\u8fd8\u4f1a\u8bbf\u95ee\u66f4\u591a\u5176\u4ed6\u7684\u8354\u679d\u9053\u3002<\/p>\n\n\n\n

05<\/strong>\u800c\u8354\u679d\u9053#2a\u3001#2b\uff0c\u7531\u4e8e\u5404\u81ea\u6536\u5230\u4e86\u6765\u81ea#1\u7684\u4e1a\u52a1\u5458\u8bf7\u6c42\uff0c\u4e5f\u4f1a\u5f00\u59cb\u6d3e\u4eba\u6765\u8bbf\u3002\u91cd\u590d\u8fd9\u4e2a\u8fc7\u7a0b\uff0c\u5c06\u4f7f\u5f97\u8d8a\u6765\u8d8a\u591a\u7684\u8354\u679d\u9053\u5f00\u59cb\u53c2\u4e0e\u8fdb\u6765\uff0c\u6d3e\u51fa\u7684\u4e1a\u52a1\u5458\u4e5f\u8d8a\u6765\u8d8a\u591a\u3002<\/p>\n\n\n\n

\u5728\u6b64\u8fc7\u7a0b\u4e2d\uff0c\u9700\u8981\u989d\u5916\u6ce8\u610f\u4e00\u4e2a\u6280\u672f\u7ec6\u8282\uff0c\u5373\u5bf9\u4e8eRD\u6807\u5fd7\u4f4d\u7684\u5904\u7406\u3002RD\uff08Recursion Desired\uff0c\u671f\u671b\u9012\u5f52\uff09\u662fDNS\u8bf7\u6c42\u62a5\u6587\u4e2d\u7684\u4e00\u4e2a\u6807\u8bb0\u4f4d\uff0c\u8868\u660e\u662f\u5426\u5e0c\u671b\u57df\u540d\u670d\u52a1\u5668\u6267\u884c\u9012\u5f52\u67e5\u8be2\uff1a\u5f53\u67e5\u8be2\u62a5\u6587\u7684RD=0\u65f6\uff0c\u8868\u793a\u5e0c\u671b\u76ee\u6807\u670d\u52a1\u5668\u4ec5\u5728\u672c\u5730\u7f13\u5b58\u6570\u636e\u4e2d\u5bfb\u627e\u5e76\u8fd4\u56de\u7b54\u6848\uff0c\u4e0d\u5411\u5916\u6267\u884c\u989d\u5916\u7684\u67e5\u8be2\u3002<\/strong>\u6362\u53e5\u8bdd\u8bf4\uff0c\u6211\u5e0c\u671b\u4f60\u76f4\u63a5\u7ed9\u6211\u8354\u679d\u201c\u5b58\u8d27\u201d\uff0c\u800c\u4e0d\u518d\u6d3e\u4e1a\u52a1\u5458\u51fa\u53bb\u3002
<\/p>\n\n\n\n

\u4e00\u822c\u5730\uff0c\u9012\u5f52\u57df\u540d\u670d\u52a1\u5668\u5728\u67e5\u8be2\u6743\u5a01\u670d\u52a1\u5668\u65f6\uff0c\u53d1\u9001\u7684\u67e5\u8be2\u62a5\u6587\u5373\u6ee1\u8db3RD=0\uff1b\u5728\u56fe6\u4e2d\uff0c\u5982\u679cDRS#2b\u9075\u5faa\u534f\u8bae\u89c4\u8303\uff0c\u5b83\u5728\u6536\u5230DRS#1\u8bf7\u6c42\u65f6\u5e76\u4e0d\u4f1a\u7ee7\u7eed\u6267\u884c\u9012\u5f52\u67e5\u8be2\u548c\u91cd\u8bd5\uff0c\u7ea7\u8054\u653e\u5927\u8fc7\u7a0b\u5931\u8d25\u3002\u7136\u800c\uff0c\u73b0\u5b9e\u7684\u4e16\u754c\u5e76\u4e0d\u9075\u5b88\u7406\u60f3\u7684\u8bbe\u8ba1\uff1b\u6211\u4eec\u901a\u8fc7\u5168\u7403\u7684\u6d4b\u91cf\u5b9e\u9a8c\u53d1\u73b0\uff0c\u7ea627%\u7684\u5f00\u653eDRS\u5e76\u4e0d\u9075\u5faa\u4e0a\u8ff0\u89c4\u8303\uff0c\u8fd9\u4e3a\u653b\u51fb\u8005\u7684\u4efb\u610f\u7ea7\u8054\u521b\u9020\u4e86\u6761\u4ef6\u3002<\/strong><\/p>\n\n\n\n

03\u6d77\u5578\u4e4b\u738b\u653b\u51fb\u6a21\u578b<\/strong><\/p>\n\n\n\n

TsuKing\u653b\u51fb\u6a21\u578b\u5c06\u4e0a\u8ff0\u7684\u4e24\u7279\u6027\uff08\u80fd\u529b\uff09\u7ed3\u5408\uff0c\u901a\u8fc7\u7075\u6d3b\u7684\u5904\u7406\u6784\u6210\u6d41\u91cf\u653e\u5927\u653b\u51fb\u3002\u5177\u4f53\u5730\uff0c\u6211\u4eec\u5728\u6587\u7ae0\u4e2d\u4ecb\u7ecd\u4e863\u79cd\u653b\u51fb\u53d8\u79cd\uff0c\u7ecf\u5b9e\u9a8c\u8bc1\u660e\u90fd\u5177\u5907\u975e\u5e38\u53ef\u89c2\u7684\u6d41\u91cf\u653e\u5927\u80fd\u529b\u3002<\/p>\n\n\n\n

1.DNS\u91cd\u8bd5\u653b\u51fb\uff08DNSRetry\uff09<\/strong><\/p>\n\n\n\n

\u6b63\u5982\u6211\u4eec\u5728\u56fe5\u4e2d\u8bf4\u660e\u7684\u90a3\u6837\uff0c\u4e92\u8054\u7f51\u4e0a\u90e8\u5206DRS\u81ea\u8eab\u6fc0\u8fdb\u7684\u91cd\u8bd5\u5df2\u7ecf\u8db3\u4ee5\u5f62\u6210\u53ef\u89c2\u7684\u653e\u5927\u6548\u679c\uff08\u5982\u91cd\u8bd5\u540c\u4e00\u8bf7\u6c42\u4e0a\u5343\u6b21\uff09<\/strong>\uff0c\u6240\u4ee5\u653b\u51fb\u8005\u8981\u505a\u7684\u4ec5\u4ec5\u662f\u63a7\u5236\u8fd9\u4e9b\u91cd\u8bd5\u6fc0\u8fdb\u7684\u8354\u679d\u4f9b\u5e94\u70b9\u9891\u7e41\u5730\u53bb\u53d7\u5bb3\u8005\u90a3\u91cc\u8bf7\u6c42\u8354\u679d\u3002\u6211\u4eec\u79f0\u8be5\u653b\u51fb\u6a21\u578b\u4e3aDNS\u91cd\u8bd5\u653b\u51fb\uff08DNSRetry\uff09\u3002\u6b64\u653b\u51fb\u6a21\u578b\u6311\u9009\u91cd\u8bd5\u7b56\u7565\u975e\u5e38\u6fc0\u8fdb\u7684DRS\uff0c\u65e0\u9700\u7ea7\u8054\u5373\u53ef\u5b9e\u73b0\u9ad8\u500d\u7387\u6d41\u91cf\u653e\u5927\u3002<\/strong>\u6211\u4eec\u7684\u6d4b\u91cf\u7ed3\u679c\u663e\u793a\uff0c\u7ea6\u6709529\u4e2a\u5f00\u653eDRS\uff08\u5360\u603b\u65700.04%\uff09\u7684\u91cd\u8bd5\u6b21\u6570\u80fd\u591f\u8fbe\u52301K\u4ee5\u4e0a\uff0c\u6700\u9ad8\u8fbe11\u4e07\u6b21\u4ee5\u4e0a\uff08\u5373\u6211\u4eec\u5411\u8be5DRS\u53d1\u51fa\u4e00\u4e2a\u8bf7\u6c42\uff0c\u5728\u6743\u5a01\u670d\u52a1\u7aef\u53ef\u80fd\u6536\u523011\u4e07\u4ee5\u4e0a\u7684\u91cd\u590d\u8bf7\u6c42\u62a5\u6587\uff09\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u56fe7 DNS\u91cd\u8bd5\u653b\u51fb\uff08DNSRetry\uff09\u793a\u610f<\/strong><\/p>\n\n\n\n

\u653b\u51fb\u8005\u53ea\u9700\u8981\u50cf\u56fe6\u4e2d\u90a3\u6837\u901a\u8fc7\u6076\u610f\u7684NS\u8bb0\u5f55\uff0c\u5c31\u53ef\u4ee5\u8ba9\u8fd9\u4e9b\u6fc0\u8fdb\u7684DRS\u53bb\u5411\u53d7\u5bb3\u8005\u53d1\u9001\u67e5\u8be2\uff0c\u800c\u4e0d\u65ad\u5730\u91cd\u590d\u8fd9\u4e2a\u8fc7\u7a0b\uff0c\u5c31\u53ef\u4ee5\u6301\u7eed\u5bf9\u53d7\u5bb3\u8005\u9020\u6210\u538b\u529b\u3002<\/p>\n\n\n\n

\u6211\u4eec\u5728\u53ef\u63a7\u73af\u5883\u4e0b\u7ec4\u7ec7\u4e86\u5c0f\u89c4\u6a21\u4e0b\u73b0\u5b9e\u7f51\u7edc\u5b9e\u9a8c\uff0c\u5c55\u5f00\u4e86\u6301\u7eed\u4e86\u5927\u7ea612\u4e2a\u5c0f\u65f6\u7684\u653b\u51fb\uff0c\u5728\u6574\u4e2a\u5b9e\u9a8c\u8fc7\u7a0b\u4e2d\uff0c\u653b\u51fb\u8005\u7684\u53d1\u9001\u901f\u7387\u4e3a1.38p\/s<\/strong>\uff08packets per second\uff09\uff0c\u53d7\u5bb3\u8005\u6536\u5230\u8bf7\u6c42\u7684\u5e73\u5747\u901f\u7387\u4e3a882.6p\/s<\/strong>\uff0c\u6d41\u91cf\u653e\u5927638\u500d<\/strong>\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u56fe8 DNS\u91cd\u8bd5\u653b\u51fb\uff08DNSRetry\uff09\u5b9e\u9a8c\u7ed3\u679c<\/strong><\/p>\n\n\n\n

2.DNS\u94fe\u5f0f\u653b\u51fb\uff08DNSChain\uff09<\/strong><\/p>\n\n\n\n

\u867d\u7136\u6709\u91cd\u8bd5\u6fc0\u8fdb\u7684DRS\uff0c\u4f46\u5927\u591a\u6570\u7684DRS\u7684\u91cd\u8bd5\u884c\u4e3a\u5e76\u4e0d\u8db3\u4ee5\u5f62\u6210\u5a01\u80c1\u3002\u4e3a\u4e86\u5b9e\u73b0\u66f4\u5927\u89c4\u6a21\u7684\u653e\u5927\u653b\u51fb\uff0c\u9700\u8981\u501f\u52a9\u7ec4\u5408\u534f\u8c03\u7684\u6280\u672f\u8ba9\u6d41\u91cf\u5b9e\u73b0\u7ea7\u8054\u653e\u5927\uff0c\u6211\u4eec\u79f0\u4e4b\u4e3aDNS\u94fe\u5f0f\u653b\u51fb\uff08DNSChain\uff09\u3002\u6b64\u653b\u51fb\u6a21\u578b\u901a\u8fc7\u7ea7\u8054\u591a\u5c42DRS\u5b8c\u6210\uff0c\u6bcf\u5c42\u90fd\u5728\u5b9e\u73b0\u91cd\u8bd5\u653e\u5927\uff0c\u5e76\u901a\u8fc7\u653b\u51fb\u8005\u7684\u523b\u610f\u91cd\u5b9a\u5411\u5b9e\u73b0\u653e\u5927\u500d\u7387\u7684\u53e0\u52a0\u3002<\/strong><\/p>\n\n\n\n

\u548c\u56fe6\u4e00\u81f4\uff0c\u8bf7\u6c42\u5728\u653b\u51fb\u8005\u7684\u63a7\u5236\u4e0b\u4e0d\u65ad\u5730\u5411\u66f4\u9ad8\u7684\u5c42\u7ea7\u8f6c\u53d1\uff0c\u800c\u6bcf\u4e00\u8f6e\u7684\u8f6c\u53d1\u90fd\u4f1a\u56e0\u4e3aDRS\u7684\u91cd\u8bd5\u548c\u591a\u540e\u7aef\u5bfc\u81f4\u66f4\u591a\u7684DRS\u53c2\u4e0e\u8fdb\u6765\u3002\u5f53\u5230\u8fbe\u5c42\u7ea7 n\uff0c\u4f1a\u6709 x \u4e2aDRS\u53c2\u4e0e\u8f6c\u53d1\uff0c\u653e\u5927\u80fd\u529b\u5df2\u7ecf\u8db3\u591f\uff0c\u653b\u51fb\u8005\u5219\u63a7\u5236\u6240\u6709 x \u4e2aDRS\u90fd\u5411\u53d7\u5bb3\u8005\u8f6c\u53d1\u8bf7\u6c42\uff0c\u5f62\u6210\u6d41\u91cf\u653e\u5927\u3002\u6700\u540e\u4e00\u5c42\u7684\u63a7\u5236\u5982\u56fe9\u6240\u793a\uff0c\u653b\u51fb\u8005\u7684\u6743\u5a01\u670d\u52a1\u5668\u5411\u6240\u6709<\/strong>\u6700\u540e\u4e00\u5c42\u7684DRS\u56de\u590d\u7684NS\u8bb0\u5f55\u5747\u4e00\u81f4\uff0c\u5747\u6307\u5411\u53d7\u5bb3\u8005\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u56fe9 DNS\u94fe\u5f0f\u653b\u51fb(DNSChain) \u6700\u540e\u4e00\u5c42\u653b\u51fb\u8fc7\u7a0b<\/strong><\/p>\n\n\n\n

\u6211\u4eec\u7ec4\u7ec7\u4e86\u53ef\u63a7\u73af\u5883\u4e0b\u7684\u5c0f\u89c4\u6a21\u73b0\u5b9e\u7f51\u7edc\u5b9e\u9a8c\uff0c\u901a\u8fc7\u8c03\u5ea661\u4e2a\u8106\u5f31DRS\uff0c\u7ec4\u6210\u4e86\u4e00\u4e2a5\u5c42\u957f\u5ea6\u7684DNSChain\u3002\u8be5\u5b9e\u9a8c\u6301\u7eed\u4e866\u4e2a\u5c0f\u65f6\uff08\u5982\u56fe10\u6240\u793a\uff09\uff0c\u5728\u6574\u4e2a\u5b9e\u9a8c\u4e2d\uff0c\u653b\u51fb\u8005\u603b\u5171\u53d1\u9001\u4e8617864\u4e2a\u6570\u636e\u5305\uff080.8p\/s<\/strong>\uff09\uff0c\u800c\u53d7\u5bb3\u8005\u603b\u5171\u6536\u5230\u4e864,557,336\u4e2a\u8bf7\u6c42\uff08206.4p\/s<\/strong>\uff09\u3002<\/p>\n\n\n\n

\u5728\u6211\u4eec\u6240\u6709\u7684\u53ef\u63a7\u5b9e\u9a8c\u4e2d\uff0cDNSChain\u6240\u8fbe\u5230\u7684\u6700\u5927\u653e\u5927\u500d\u7387\u662f\u4f7f\u7528253\u4e2a\u8106\u5f31DRS\u7ec4\u6210\u76847\u5c42DNSChain\u6a21\u578b\uff0c\u8fbe\u5230\u4e863702\u500d\u7684\u653e\u5927\u500d\u7387\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u5982\u679c\u653b\u51fb\u8005\u6784\u9020\u66f4\u52a0\u5e9e\u5927\u7684\u653b\u51fb\u94fe\u6761\uff0c\u653e\u5927\u500d\u7387\u8fd8\u80fd\u4e0a\u5347\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u56fe10 DNS\u94fe\u5f0f\u653b\u51fb(DNSChain) \u5b9e\u9a8c\u7ed3\u679c<\/strong><\/p>\n\n\n\n

3. DNS\u5faa\u73af\u653b\u51fb\uff08DNSLoop\uff09<\/strong><\/p>\n\n\n\n

DNS\u5faa\u73af\u653b\u51fb\uff08DNSLoop\uff09\u7684\u653b\u51fb\u662f\u5728DNSChain\u653b\u51fb\u7684\u57fa\u7840\u4e0a\uff0c\u8ba9\u6700\u540e\u4e00\u5c42\u7684\u8bf7\u6c42\u518d\u6b21\u8f6c\u53d1\u5230\u7b2c\u4e00\u5c42\uff0c\u4ece\u800c\u5f62\u6210\u4e00\u4e2a\u73af\u8def\u3002<\/strong>\u4e00\u4e2a\u8bf7\u6c42\u88ab\u53d1\u9001\u7ed9\u73af\u8def\u5185\u7684\u4efb\u4f55\u4e00\u4e2aDRS\uff0c\u90fd\u4f1a\u5bfc\u81f4\u8be5\u67e5\u8be2\u5728\u73af\u8def\u5185\u88ab\u6c38\u4e45\u5730\u8f6c\u53d1\u4e0b\u53bb\uff1b\u5f53\u653b\u51fb\u8005\u7ee7\u7eed\u5411\u73af\u8def\u5185\u6ce8\u5165\u65b0\u7684\u67e5\u8be2\u8bf7\u6c42\uff0c\u6574\u4e2a\u73af\u8def\u5185\u7684\u8d1f\u8f7d\u4f1a\u8d8a\u6765\u8d8a\u91cd\uff0c\u6700\u7ec8\u5bfc\u81f4\u670d\u52a1\u5668\u6216\u94fe\u8def\u7684\u62d2\u7edd\u670d\u52a1\u3002\u8be5\u6a21\u578b\u7684\u653b\u51fb\u76ee\u6807\u4e3a\u94fe\u8def\u4e2d\u7684\u6240\u6709DRS\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u56fe11 DNS\u5faa\u73af\u653b\u51fb(DNSLoop)<\/strong><\/p>\n\n\n\n

\u6211\u4eec\u7ec4\u7ec7\u4e86\u53ef\u63a7\u73af\u5883\u4e0b\u7684\u5c0f\u89c4\u6a21\u73b0\u5b9e\u7f51\u7edc\u5b9e\u9a8c\uff0c\u6784\u5efa\u4e86\u4e00\u4e2a7\u5c42\u7684\u73af\u8def\uff0c\u5e76\u4f7f\u7528\u6211\u4eec\u81ea\u5df1\u7684\u8f6c\u53d1\u5668\uff08DRS#1\uff09\u4f5c\u4e3a\u9996\u5c3e\u8854\u63a5\uff0c\u4ee5\u6b64\u6765\u89c2\u5bdf\u548c\u63a7\u5236\u73af\u8def\u5185\u7684\u6d41\u91cf\u3002\u6211\u4eec\u53ea\u5728\u5b9e\u9a8c\u5f00\u59cb\u65f6\u901a\u8fc7Layer1\u7684DRS#1 \u53d1\u51fa\u4e86\u4e00\u4e2aDNS\u7684\u67e5\u8be2\u8bf7\u6c42<\/strong>\uff0c\u8fd9\u4e2a\u8bf7\u6c42\u88ab\u8f6c\u53d1\u3001\u91cd\u590d\u3001\u6700\u7ec8\u901a\u8fc7\u6700\u540e\u4e00\u5c42\u7684DRS\u56de\u5230\u7b2c\u4e00\u5c42\uff0c\u5faa\u73af\u5f80\u590d\u3002\u56fe12\u662f\u5b9e\u9a8c\u8fc7\u7a0b\u4e2d\u6211\u4eec\u7684\u8f6c\u53d1\u5668\u7684\u6d41\u91cf\u60c5\u51b5\uff0c\u53ef\u4ee5\u770b\u5230\u6574\u4e2a\u5b9e\u9a8c\u76f4\u5230\u6700\u540e\u4eba\u4e3a\u505c\u6b62<\/strong>\uff0c\u572824\u5c0f\u65f6\u4e4b\u5185\u90fd\u4e00\u76f4\u4fdd\u6301\u7740\u7a33\u5b9a\u7684\u8f6c\u53d1\u73af\u8def\uff0c\u5728\u8fd9\u5176\u4e2d\u6211\u4eec\u7684\u8f6c\u53d1\u5668\u603b\u5171\u53d1\u9001\u4e8686,380\u4e2a\u6570\u636e\u5305\uff081 p\/s\uff0c\u6bcf2\u4e2a\u8bf7\u6c42\u4e3a\u4e00\u6b21\u65b0\u7684\u5bf9\u5916\u67e5\u8be2\uff09<\/strong>\uff0c\u6536\u5230\u4e861,100,320\u4e2a\u6570\u636e\u5305\uff0812.7 p\/s\uff09<\/strong>\uff0c\u5b9e\u9a8c\u671f\u95f4\u6536\u5230\uff08\u5faa\u73af\uff09\u4e8643,190\u6b21<\/strong>\u76f8\u540c\u7684\u8bf7\u6c42\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u56fe12 DNSLoop\u5b9e\u9a8c\u9996\u5c3e\u8854\u63a5\u70b9\u7684\u6d41\u91cf\u60c5\u51b5<\/strong><\/p>\n\n\n\n

04 \u603b\u7ed3\u4e0e\u5efa\u8bae<\/strong> <\/p>\n\n\n\n

\u6d77\u5578\u4e4b\u738b\uff08TsuKing\uff09\u4f5c\u4e3a\u4e00\u79cd\u65b0\u7684DNS\u653e\u5927\u653b\u51fb\uff0c\u5b83\u5229\u7528\u57df\u540d\u89e3\u6790\u7ed3\u6784\u7684\u590d\u6742\u6027\u548cDRS\u5bf9\u4e8eRD\u5904\u7406\u7684\u4e0d\u89c4\u8303\uff0c\u5c06\u653e\u5927\u80fd\u529b\u6709\u9650\u7684\u5355\u4e2a\u670d\u52a1\u5668\u7ea7\u8054\u7ec4\u5408\uff0c\u4ea7\u751f\u5f3a\u5927\u7684\u653e\u5927\u6548\u679c\u3002TsuKing\u5728\u73b0\u5b9e\u4e16\u754c\u4e2d\u5177\u6709\u91cd\u5927\u800c\u5e7f\u6cdb\u7684\u5f71\u54cd\uff0c\u5728130\u4e07\u4e2a\u5f00\u653e\u7684DRS\u4e2d\uff0c\u7ea6\u670914.5%\u53ef\u88ab\u5229\u7528\uff0c\u5176\u4e2d\u4e5f\u5305\u62ec\u4e00\u4e9b\u6d41\u884c\u7684DNS\u8f6f\u4ef6\u548c\u516c\u5171DNS\u670d\u52a1\u3002\u5728\u6211\u4eec\u8fdb\u884c\u53cd\u9988\u62a5\u544a\u540e\uff0c\u8fd9\u4e9b\u8f6f\u4ef6\u5382\u5546\u548c\u670d\u52a1\u63d0\u4f9b\u5546\u7ed9\u4e86\u6211\u4eec\u79ef\u6781\u7684\u53cd\u9988\uff0c\u4fee\u590d\u4e86\u5176\u4e2d\u7684\u5b89\u5168\u95ee\u9898\uff0cTsuking\u76ee\u524d\u88ab\u5206\u914d\u4e863\u4e2aCVE<\/a>\u7f16\u53f7\u3002<\/p>\n\n\n\n

\u4e3a\u4e86\u5e94\u5bf9TsuKing\u53ef\u80fd\u5e26\u6765\u7684\u5a01\u80c1\uff0c\u6211\u4eec\u63d0\u51fa\u4e86\u4e00\u4e9b\u7f13\u89e3\u63aa\u65bd\u3002\u9996\u5148\uff0cDNS\u89e3\u6790\u5668\u9700\u8981\u9075\u5b88RD\u6807\u5fd7\u4f4d\u7684\u64cd\u4f5c\u89c4\u8303\uff0c\u4ee5\u5207\u65ad\u7ea7\u8054\u8f6c\u53d1\u94fe\u6761\uff1b\u5176\u6b21\uff0c\u89e3\u6790\u5668\u53ef\u4ee5\u901a\u8fc7\u5b9e\u73b0\u8d1f\u7f13\u5b58\u548c\u907f\u514d\u6fc0\u8fdb\u7684\u91cd\u8bd5\u64cd\u4f5c\u6765\u51cf\u8f7bTsuKing\u653b\u51fb\u5e26\u6765\u7684\u5f71\u54cd\u3002\u5bf9\u4e8e\u5177\u6709\u591a\u540e\u7aef\u7684\u89e3\u6790\u5668\u800c\u8a00\uff0c\u5e94\u8be5\u4f18\u5316\u4e0d\u540c\u540e\u7aef\u7684\u8c03\u5ea6\u903b\u8f91\uff0c\u907f\u514d\u5728\u91cd\u8bd5\u8fc7\u7a0b\u4e2d\u4f7f\u7528\u591a\u4e2a\u540e\u7aef\u3002<\/p>\n\n\n\n

\u53c2\u8003\u6587\u732e<\/strong><\/p>\n\n\n\n

[1] Paul V. Mockapetris. 1987. Domain names – concepts and facilities. RFC 1034 (1987), 1\u201355. https:\/\/doi.org\/10.17487\/RFC1034<\/p>\n\n\n\n

[2] Paul V. Mockapetris. 1987. Domain names – implementation and specification. RFC 1035 (1987), 1\u201355. https:\/\/doi.org\/10.17487\/RFC1035<\/p>\n\n\n\n

[3] Xiaofeng Zheng, Chaoyi Lu, Jian Peng, Qiushi Yang, Dongjie Zhou, Baojun Liu, Keyu Man, Shuang Hao, Haixin Duan, and Zhiyun Qian. 2020. Poison Over Troubled Forwarders: A Cache Poisoning Attack Targeting DNS Forwarding Devices. In 29th USENIX Security Symposium, USENIX Security 2020, August 12-14, 2020, Srdjan Capkun and Franziska Roesner (Eds.). USENIX Association, 577\u2013593. https:\/\/www.usenix.org\/conference\/usenixsecurity20\/presentation\/zheng<\/p>\n\n\n\n

[4] Audrey Randall, Enze Liu, Gautam Akiwate, Ramakrishna Padmanabhan, Geoffrey M. Voelker, Stefan Savage, and Aaron Schulman. 2020. Trufflehunter: Cache Snooping Rare Domains at Large Public DNS Resolvers. In IMC \u201920: ACM Internet Measurement Conference, Virtual Event, USA, October 27-29, 2020. ACM, 50\u201364. https:\/\/doi.org\/10.1145\/3419394.3423640<\/p>\n\n\n\n

[5] P. Krishna Gummadi, Stefan Saroiu, and Steven D. Gribble. 2002. King: estimating latency between arbitrary internet end hosts. In Internet Measurement Workshop. ACM, 5\u201318.<\/p>\n\n\n\n

[6] Wei Xu, xiang Li, Chaoyi Lu, Baojun Liu, Haixin Duan, Jia Zhang, Jianjun chen, Tao Wan. TsuKing: Coordinating DNS Resolvers and Queries into Potent DoS Amplifiers. ACM CCS 23. https:\/\/tsuking.net\/
<\/p>\n","protected":false},"excerpt":{"rendered":"

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