\u4f60\u61c9\u8a72\u4f9d\u7167\u5faa\u5e8f\u6f38\u9032\u7684\u6d41\u7a0b\u4f86\u6392\u67e5\uff0c\u4e26\u5feb\u901f\u4fee\u5fa9\u9019\u4e9b\u554f\u984c\u3002<\/p>\n

\u95dc\u9375\u91cd\u9ede<\/strong><\/h2>\n

\n
• \u4f7f\u7528 NetBeez \u548c ThousandEyes \u7b49\u76e3\u63a7\u5de5\u5177\uff0c\u8b58\u5225\u5b58\u5728 DNS \u89e3\u6790\u554f\u984c\u7684\u7528\u6236\u7aef\u3002<\/li>\n
• \u900f\u904e\u6aa2\u67e5\u4f3a\u670d\u5668\u53ef\u7528\u6027\u3001\u8a2d\u5b9a\u932f\u8aa4\u548c\u7db2\u8def\u9023\u901a\u6027\uff0c\u8a55\u4f30 DNS \u6545\u969c\u7684\u7bc4\u570d\u3002<\/li>\n
• \u4f7f\u7528 ping \u6e2c\u8a66\u9a57\u8b49\u7db2\u8def\u9023\u901a\u6027\uff0c\u78ba\u4fdd DNS \u89e3\u6790\u904b\u4f5c\u6b63\u5e38\u3002<\/li>\n
• \u6aa2\u67e5 DNS \u8f49\u9001\u5668\u8207\u6839\u63d0\u793a\uff08Root Hints\uff09\u7684\u8a2d\u5b9a\u662f\u5426\u6b63\u78ba\uff0c\u4ee5\u9632\u6b62\u670d\u52d9\u4e2d\u65b7\u3002<\/li>\n
• \u4f7f\u7528 Wireshark \u7b49\u7db2\u8def\u5c01\u5305\u64f7\u53d6\u5de5\u5177\u5206\u6790 DNS \u6d41\u91cf\u4e26\u89e3\u6c7a\u540d\u7a31\u89e3\u6790\u6545\u969c\u3002<\/li>\n<\/ul>\n

  \u8b58\u5225 DNS \u540d\u7a31\u89e3\u6790\u6545\u969c<\/strong><\/h2>\n

  \u5b9a\u4f4d\u53d7\u5f71\u97ff\u7684\u7528\u6236\u7aef<\/h3>\n

  \u4f60\u9700\u8981\u5148\u627e\u51fa\u54ea\u4e9b\u7528\u6236\u7aef\u9047\u5230 DNS \u540d\u7a31\u89e3\u6790\u6545\u969c\u3002\u53ef\u4ee5\u5148\u4f7f\u7528\u76e3\u63a7\u5de5\u5177\uff0c\u9019\u4e9b\u5de5\u5177\u6703\u5728\u6548\u80fd\u4e0b\u964d\u6216\u5b58\u53d6\u7570\u5e38\u6642\u767c\u51fa\u8b66\u5831\u3002NetBeez \u548c ThousandEyes \u80fd\u5e6b\u52a9\u4f60\u5feb\u901f\u767c\u73fe\u554f\u984c\u3002\u5b83\u5011\u6703\u50b3\u9001\u5373\u6642\u8b66\u5831\uff0c\u4e26\u5141\u8a31\u4f60\u5206\u6790 DNS \u56de\u61c9\u6642\u9593\u3002\u4f60\u53ef\u4ee5\u540c\u6642\u76e3\u63a7\u672c\u5730\u8207\u5916\u90e8 DNS \u4f3a\u670d\u5668\uff0c\u4ee5\u5224\u65b7\u554f\u984c\u6e90\u982d\u3002<\/p>\n

  \n
  • NetBeez \u63d0\u4f9b\u5408\u6210\u76e3\u63a7\u6e2c\u8a66\uff0c\u4e26\u8ffd\u8e64 DNS \u6548\u80fd\u8da8\u52e2\u3002<\/li>\n
  • ThousandEyes \u80fd\u8ffd\u8e64 DNS \u968e\u5c64\u7d50\u69cb\uff0c\u7a81\u986f\u4f3a\u670d\u5668\u6548\u80fd\u554f\u984c\u6216\u8a18\u9304\u8a2d\u5b9a\u932f\u8aa4\u3002<\/li>\n
  • \u5373\u6642\u8b66\u5831\u53ef\u4ee5\u53cd\u6620\u6548\u80fd\u4e0b\u964d\u3002<\/li>\n
  • \u4f60\u53ef\u4ee5\u5206\u6790 DNS \u56de\u61c9\u6642\u9593\u8207\u53ef\u7528\u6027\u3002<\/li>\n
  • \u76e3\u63a7\u7bc4\u570d\u6db5\u84cb\u5167\u90e8\u8207\u5916\u90e8 DNS \u4f3a\u670d\u5668\u3002<\/li>\n<\/ul>\n

    \u5728\u627e\u51fa\u53d7\u5f71\u97ff\u7684\u7528\u6236\u7aef\u5f8c\uff0c\u4f7f\u7528\u8a3a\u65b7\u6307\u4ee4\u4f86\u78ba\u8a8d\u554f\u984c\u3002\u57f7\u884c ipconfig \/flushdns<\/code> \u6e05\u7a7a\u7528\u6236\u7aef\u5feb\u53d6\u3002\u64f7\u53d6\u7db2\u8def\u6d41\u91cf\u4e26\u904e\u6ffe UDP 53 \u57e0\uff0c\u67e5\u770b DNS \u5c01\u5305\u662f\u5426\u5230\u9054\u4f3a\u670d\u5668\u3002\u6b64\u6b65\u9a5f\u6709\u52a9\u65bc\u5c07 DNS \u540d\u7a31\u89e3\u6790\u6545\u969c\u8207\u5176\u4ed6\u7db2\u8def\u554f\u984c\u5340\u5206\u958b\u4f86\u3002<\/p>\n

    \u8a55\u4f30\u6545\u969c\u7bc4\u570d<\/h3>\n

    \u5728\u5075\u6e2c\u5230\u53d7\u5f71\u97ff\u7684\u7528\u6236\u7aef\u5f8c\uff0c\u4f60\u5fc5\u9808\u8a55\u4f30\u6545\u969c\u7684\u5ee3\u6cdb\u7a0b\u5ea6\u3002\u7559\u610f\u4e00\u4e9b\u95dc\u9375\u6307\u6a19\u4f86\u5224\u65b7\u554f\u984c\u7684\u8986\u84cb\u9762\u3002\u4e0b\u8868\u53ef\u4ee5\u5e6b\u52a9\u4f60\u5c07 DNS \u6545\u969c\u8207\u5176\u4ed6\u7db2\u8def\u554f\u984c\u5340\u5206\uff1a<\/p>\n

    \n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n

    \u554f\u984c\u985e\u578b<\/th>\n	\u63cf\u8ff0<\/th>\n<\/tr>\n
    DNS \u4f3a\u670d\u5668\u4e0d\u53ef\u7528<\/td>\n	\u540d\u7a31\u4f3a\u670d\u5668\u96e2\u7dda\u6216\u9ad8\u5ef6\u9072\uff0c\u5c0e\u81f4\u7121\u6cd5\u53ca\u6642\u5b8c\u6210\u89e3\u6790\u3002<\/td>\n<\/tr>\n
    \u8a2d\u5b9a\u932f\u8aa4<\/td>\n	DNS \u8a18\u9304\u8a2d\u5b9a\u932f\u8aa4\u6216\u8a18\u9304\u904e\u671f\uff0c\u5c0e\u81f4\u89e3\u6790\u5931\u6557\u3002<\/td>\n<\/tr>\n
    \u7db2\u8def\u9023\u901a\u6027\u554f\u984c<\/td>\n	\u9632\u706b\u7246\u6216\u7db2\u8def\u58c5\u585e\u963b\u65b7 DNS \u6d41\u91cf\uff0c\u5e72\u64fe\u89e3\u6790\u6d41\u7a0b\u3002<\/td>\n<\/tr>\n
    \u5340\u57df\u6a94\u6848\u932f\u8aa4<\/td>\n	\u8a2d\u5b9a\u6a94\u4e2d\u7684\u8a9e\u6cd5\u932f\u8aa4\u6703\u963b\u6b62\u6b63\u5e38\u89e3\u6790\u3002<\/td>\n<\/tr>\n
    \u50b3\u64ad\u5ef6\u9072<\/td>\n	DNS \u8a18\u9304\u8b8a\u66f4\u9700\u8981\u6642\u9593\u50b3\u64ad\uff0c\u5728\u6b64\u671f\u9593\u53ef\u80fd\u51fa\u73fe\u89e3\u6790\u4e0d\u4e00\u81f4\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n \u4f60\u9084\u61c9\u8a72\u6aa2\u67e5\u670d\u52d9\u53ef\u9054\u6027\u3001DNS \u5c0d\u61c9\u95dc\u4fc2\u3001\u9632\u706b\u7246\u8a2d\u5b9a\u8207\u8def\u7531\u72c0\u6cc1\u3002\u8a55\u4f30\u4e8b\u696d\u55ae\u4f4d\u3001VLAN\u3001\u96f2\u7aef\u5e33\u6236\u4ee5\u53ca\u9060\u7aef\u7aef\u9ede\uff0c\u67e5\u770b\u6545\u969c\u662f\u5426\u5f71\u97ff\u591a\u500b\u5340\u57df\u3002\u4f7f\u7528\u8a55\u5206\u51fd\u6578\u8207\u6a21\u7d44\u5316\u6e96\u5247\u4f86\u8861\u91cf\u5f71\u97ff\u7a0b\u5ea6\u3002\u5982\u679c\u51fa\u73fe\u7db2\u7ad9\u6216\u61c9\u7528\u7a0b\u5f0f\u7121\u6cd5\u5b58\u53d6\u3001\u76f8\u4f9d\u670d\u52d9\u5931\u6557\uff0c\u6216\u4e0d\u540c\u5730\u5340\u5b58\u53d6\u7d50\u679c\u4e0d\u4e00\u81f4\uff0c\u5f88\u53ef\u80fd\u5b58\u5728 DNS \u540d\u7a31\u89e3\u6790\u554f\u984c\u3002<\/p>\n \n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n \u95dc\u9375\u6307\u6a19<\/th>\n \u63cf\u8ff0<\/th>\n<\/tr>\n \u7db2\u7ad9\u8207\u61c9\u7528\u7a0b\u5f0f\u7121\u6cd5\u5b58\u53d6<\/td>\n \u5728 Web \u4f3a\u670d\u5668\u6b63\u5e38\u7684\u60c5\u6cc1\u4e0b\uff0c\u7ad9\u53f0\u6216\u61c9\u7528\u7a0b\u5f0f\u4ecd\u7121\u6cd5\u9023\u7dda\uff0c\u901a\u5e38\u4ee3\u8868\u5b58\u5728 DNS \u6545\u969c\u3002<\/td>\n<\/tr>\n \u76f8\u4f9d\u670d\u52d9\u5931\u6557<\/td>\n \u7531\u65bc DNS \u8a18\u9304\u672a\u6210\u529f\u89e3\u6790\uff0c\u90f5\u4ef6\u8207 API \u7b49\u670d\u52d9\u767c\u751f\u6545\u969c\u3002<\/td>\n<\/tr>\n \u5167\u90e8\u89e3\u6790\u932f\u8aa4<\/td>\n \u54e1\u5de5\u7121\u6cd5\u5b58\u53d6\u5167\u90e8\u8cc7\u6e90\uff0c\u591a\u534a\u8868\u793a\u5167\u90e8 DNS \u89e3\u6790\u5931\u6557\u3002<\/td>\n<\/tr>\n \u5b58\u53d6\u4e0d\u4e00\u81f4<\/td>\n \u4e0d\u540c\u5730\u5340\u7684\u4f7f\u7528\u8005\u5b58\u53d6\u7d50\u679c\u4e0d\u4e00\u81f4\uff0c\u901a\u5e38\u6697\u793a DNS \u50b3\u64ad\u554f\u984c\u3002<\/td>\n<\/tr>\n \u8a3a\u65b7\u5de5\u5177\u5931\u6557<\/td>\n \u4ee5 IP \u53ef\u6b63\u5e38\u9023\u7dda\uff0c\u4f46\u4ee5\u7db2\u57df\u540d\u7a31\u537b\u5931\u6557\uff0c\u5373\u53ef\u78ba\u8a8d\u662f DNS \u554f\u984c\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n \u63d0\u793a\uff1a\u52d9\u5fc5\u8a18\u9304\u767c\u751f\u6545\u969c\u7684\u7528\u6236\u7aef\u8207\u670d\u52d9\u3002\u9019\u4e9b\u7d00\u9304\u6709\u52a9\u65bc\u767c\u73fe\u898f\u5f8b\uff0c\u4e26\u52a0\u5feb\u5f8c\u7e8c\u6392\u67e5\u3002<\/p><\/blockquote>\n \u6aa2\u67e5\u5916\u90e8 DNS \u7d44\u614b\u8207\u9023\u901a\u6027<\/strong><\/h2>\n \u4f7f\u7528 Ping \u6e2c\u8a66\u9a57\u8b49\u7db2\u8def\u9023\u901a\u6027<\/h3>\n \u4f60\u61c9\u8a72\u5148\u5f9e\u6e2c\u8a66\u7db2\u8def\u9023\u901a\u6027\u958b\u59cb\u3002\u4f7f\u7528 ping \u6e2c\u8a66\u6aa2\u67e5\u4f3a\u670d\u5668\u662f\u5426\u80fd\u5b58\u53d6\u5916\u90e8\u8cc7\u6e90\u3002Ping \u6e2c\u8a66\u53ef\u4ee5\u8861\u91cf\u4e3b\u6a5f\u53ef\u9054\u6027\u3001\u5f80\u8fd4\u5ef6\u9072\u4ee5\u53ca\u5c01\u5305\u907a\u5931\u7387\u3002\u5982\u679c\u5728 ping \u7db2\u57df\u540d\u7a31\u6642\u51fa\u73fe\u300cPing request could not find host www.google.com\u300d\u4e4b\u985e\u7684\u932f\u8aa4\uff0c\u4f46 ping \u8a72 IP \u4f4d\u5740\u537b\u6b63\u5e38\uff0c\u554f\u984c\u5c31\u5728 DNS \u89e3\u6790\u3002\u9019\u4ee3\u8868\u7db2\u8def\u9023\u901a\u6027\u672c\u8eab\u6b63\u5e38\uff0c\u4f46\u5916\u90e8 DNS \u7d44\u614b\u672a\u6b63\u5e38\u904b\u4f5c\u3002\u4f7f\u7528\u5916\u90e8 DNS \u4f3a\u670d\u5668\u6642\uff0cDNS \u8981\u6c42\u903e\u6642\u4e5f\u80fd\u9032\u4e00\u6b65\u78ba\u8a8d\u9019\u4e00\u9ede\u3002<\/p>\n \u53ef\u4ee5\u4f9d\u7167\u4e0b\u5217\u6b65\u9a5f\u64cd\u4f5c\uff1a<\/p>\n \n \u958b\u555f\u547d\u4ee4\u63d0\u793a\u5b57\u5143\u3002<\/li>\n \u57f7\u884c ping www.google.com<\/code> \u6e2c\u8a66 DNS \u89e3\u6790\u3002<\/li>\n \u57f7\u884c ping 172.217.5.68<\/code> \u6e2c\u8a66\u76f4\u63a5\u7db2\u8def\u9023\u7dda\u3002<\/li>\n \u5982\u679c\u7db2\u57df\u540d\u7a31\u6e2c\u8a66\u5931\u6557\u4f46 IP \u6210\u529f\uff0c\u5247\u61c9\u5c07\u91cd\u9ede\u653e\u5728 DNS \u7591\u96e3\u6392\u89e3\u3002<\/li>\n<\/ol>\n \u63d0\u793a\uff1a\u52d9\u5fc5\u8a18\u9304\u6bcf\u6b21 ping \u6e2c\u8a66\u7d50\u679c\uff0c\u6709\u52a9\u65bc\u8ffd\u8e64\u53cd\u8986\u51fa\u73fe\u7684\u9023\u901a\u6027\u554f\u984c\u3002<\/p><\/blockquote>\n \u6aa2\u67e5 DNS \u8f49\u9001\u5668\u8207\u6839\u63d0\u793a<\/h3>\n \u4f60\u5fc5\u9808\u6aa2\u67e5 DNS \u8f49\u9001\u5668\u8207\u6839\u63d0\u793a\u662f\u5426\u5b58\u5728\u8a2d\u5b9a\u932f\u8aa4\u3002\u9996\u5148\u958b\u555f DNS \u7ba1\u7406\u54e1\u3002\u5728 Root Hints\uff08\u6839\u63d0\u793a\uff09\u7bc0\u9ede\u4e2d\u67e5\u770b\u662f\u5426\u5217\u51fa\u6839\u540d\u7a31\u4f3a\u670d\u5668\u7684 IP \u4f4d\u5740\u3002\u5982\u679c\u7f3a\u6f0f\u6216\u4e0d\u6b63\u78ba\uff0c\u8acb\u6309\u53f3\u9375\u9078\u64c7\u300cNew Root Hints\u300d\u65b0\u589e\u9805\u76ee\u3002\u5c55\u958b Forwarders\uff08\u8f49\u9001\u5668\uff09\u7bc0\u9ede\u4e26\u6838\u5c0d\u8f49\u9001 DNS \u4f3a\u670d\u5668\u7684 IP \u4f4d\u5740\uff0c\u5982\u6709\u9700\u8981\uff0c\u65b0\u589e\u8f49\u9001\u5668\u3002<\/p>\n \n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n \u6b65\u9a5f<\/th>\n \u64cd\u4f5c<\/th>\n \u63cf\u8ff0<\/th>\n<\/tr>\n 1<\/td>\n \u958b\u555f DNS \u7ba1\u7406\u54e1<\/td>\n \u9032\u5165 DNS \u7ba1\u7406\u54e1\u4e3b\u63a7\u53f0\u3002<\/td>\n<\/tr>\n 2<\/td>\n \u5c55\u958b Root Hints<\/td>\n \u6aa2\u67e5 Root Hints \u7bc0\u9ede\u662f\u5426\u8a2d\u5b9a\u6b63\u78ba\u3002<\/td>\n<\/tr>\n 3<\/td>\n \u9a57\u8b49 IP<\/td>\n \u78ba\u4fdd\u5df2\u6b63\u78ba\u5217\u51fa\u6839\u540d\u7a31\u4f3a\u670d\u5668 IP\u3002<\/td>\n<\/tr>\n 4<\/td>\n \u65b0\u589e\u6839\u63d0\u793a<\/td>\n \u82e5\u6709\u932f\u8aa4\u6216\u7f3a\u6f0f\uff0c\u65b0\u589e\u65b0\u7684\u6839\u63d0\u793a\u9805\u76ee\u3002<\/td>\n<\/tr>\n 5<\/td>\n \u5c55\u958b Forwarders<\/td>\n \u6aa2\u67e5 Forwarders \u7bc0\u9ede\u7684\u8a2d\u5b9a\u3002<\/td>\n<\/tr>\n 6<\/td>\n \u9a57\u8b49\u8f49\u9001\u5668<\/td>\n \u78ba\u8a8d\u8f49\u9001 DNS \u4f3a\u670d\u5668 IP \u5df2\u6b63\u78ba\u8a2d\u5b9a\u3002<\/td>\n<\/tr>\n 7<\/td>\n \u65b0\u589e\u8f49\u9001\u5668<\/td>\n \u8996\u9700\u8981\u65b0\u589e\u65b0\u7684\u8f49\u9001\u5668\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n \u932f\u8aa4\u7684 DNS \u8f49\u9001\u5668\u8a2d\u5b9a\u6703\u5c0e\u81f4\u670d\u52d9\u4e2d\u65b7\u3001\u90f5\u4ef6\u901a\u8a0a\u4e2d\u65b7\uff0c\u751a\u81f3\u5e36\u4f86\u5b89\u5168\u5f31\u9ede\u3002\u4f60\u61c9\u78ba\u8a8d\u5c0d\u61c9\u5340\u57df\u5df2\u5b58\u5728\u4e14\u8a18\u9304\u5b8c\u6574\u3002\u900f\u904e\u9a57\u8b49\u8f49\u9001\u5668\u8207\u6839\u63d0\u793a\u8a2d\u5b9a\uff0c\u53ef\u4ee5\u6709\u6548\u9810\u9632\u5916\u90e8 DNS \u7d44\u614b\u6545\u969c\u3002<\/p>\n \u6ce8\u610f\uff1a\u5728 Active Directory \u74b0\u5883\u4e2d\uff0c\u4f7f\u7528 ipconfig \/all<\/code> \u6aa2\u67e5 DNS \u7528\u6236\u7aef\u8a2d\u5b9a\u3002\u5728\u7db2\u8def\u5167\u5bb9\u4e2d\u8abf\u6574\u8a2d\u5b9a\uff0c\u4e26\u900f\u904e ipconfig \/flushdns<\/code> \u6e05\u7a7a DNS \u89e3\u6790\u7a0b\u5f0f\u5feb\u53d6\u3002\u4f7f\u7528 ipconfig \/registerdns<\/code> \u8a3b\u518a DNS \u8a18\u9304\u3002\u6700\u5f8c\u5728 DNS \u7ba1\u7406\u4e3b\u63a7\u53f0\u78ba\u8a8d\u4e3b\u6a5f\u3001SOA \u548c NS \u8a18\u9304\u662f\u5426\u5b8c\u6574\u3002<\/p><\/blockquote>\n \u6aa2\u67e5 DNS \u4f3a\u670d\u5668\u8a2d\u5b9a<\/strong><\/h2>\n \u9a57\u8b49\u5340\u57df\u8207\u8a18\u9304\u8a2d\u5b9a<\/h3>\n \u4f60\u9700\u8981\u6aa2\u67e5 DNS \u4f3a\u670d\u5668\u8a2d\u5b9a\uff0c\u4ee5\u907f\u514d\u5e38\u898b\u554f\u984c\u3002\u5148\u78ba\u8a8d\u7528\u6236\u7aef\u6307\u5411\u6b63\u78ba\u7684 DNS \u4f3a\u670d\u5668\u3002\u518d\u78ba\u8a8d\u5c0d\u61c9\u5340\u57df\u662f\u5426\u5b58\u5728\uff0c\u4e14\u5305\u542b\u6240\u6709\u9810\u671f\u8a18\u9304\u3002\u4f7f\u7528 DNS \u7ba1\u7406\u4e3b\u63a7\u53f0\u6aa2\u67e5\u8f49\u9001\u5668\u8207\u6839\u63d0\u793a\u3002\u4f60\u4e5f\u61c9\u67e5\u770b DNS \u4f3a\u670d\u5668\u4e8b\u4ef6\u8a18\u9304\uff0c\u4ee5\u5224\u65b7\u662f\u5426\u5b58\u5728\u932f\u8aa4\u6216\u8b66\u544a\u3002\u5f9e\u4f3a\u670d\u5668\u8207\u7528\u6236\u7aef\u5206\u5225\u57f7\u884c\u76f8\u540c\u7684 DNS \u67e5\u8a62\uff0c\u6bd4\u8f03\u7d50\u679c\u3002<\/p>\n \u8a31\u591a\u554f\u984c\u6e90\u81ea\u8a18\u9304\u907a\u5931\u6216\u932f\u8aa4\u3002\u4e0b\u8868\u5217\u51fa\u5e38\u898b\u932f\u8aa4\u53ca\u5176\u5f71\u97ff\uff1a<\/p>\n \n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n \u932f\u8aa4\u985e\u578b<\/th>\n \u63cf\u8ff0<\/th>\n \u5c0d\u529f\u80fd\u8207\u5b89\u5168\u7684\u5f71\u97ff<\/th>\n<\/tr>\n CNAME \u8a18\u9304\u554f\u984c<\/td>\n \u93c8\u72c0\u6216\u61f8\u7a7a CNAME \u53ef\u80fd\u5c0e\u81f4\u6d41\u91cf\u906d\u5230\u633e\u6301\u3002<\/td>\n \u6703\u589e\u52a0\u67e5\u8a62\u6642\u9593\uff0c\u4e26\u53ef\u80fd\u8b93\u653b\u64ca\u8005\u6709\u6a5f\u53ef\u4e58\u3002<\/td>\n<\/tr>\n NS \u8a18\u9304\u554f\u984c<\/td>\n \u540d\u7a31\u4f3a\u670d\u5668\u7121\u56de\u61c9\u6703\u5c0e\u81f4\u7db2\u57df\u7121\u6cd5\u89e3\u6790\u3002<\/td>\n \u4f7f\u7db2\u57df\u7121\u6cd5\u89e3\u6790\uff0c\u4e26\u7834\u58de\u4fe1\u4efb\u3002<\/td>\n<\/tr>\n TXT \u8a18\u9304\u932f\u8aa4<\/td>\n \u932f\u8aa4\u7684 SPF\u3001DKIM \u6216 DMARC \u8a18\u9304\u6703\u5c0e\u81f4\u90f5\u4ef6\u6295\u905e\u554f\u984c\u3002<\/td>\n \u5408\u6cd5\u90f5\u4ef6\u53ef\u80fd\u88ab\u62d2\u6536\u6216\u6a19\u8a18\u70ba\u5783\u573e\u90f5\u4ef6\u3002<\/td>\n<\/tr>\n PTR \u8a18\u9304\u554f\u984c<\/td>\n \u932f\u8aa4\u7684 PTR \u8a18\u9304\u6703\u5f71\u97ff\u90f5\u4ef6\u4fe1\u8b7d\u3002<\/td>\n \u90f5\u4ef6\u53ef\u80fd\u88ab\u8996\u70ba\u5783\u573e\u90f5\u4ef6\u3002<\/td>\n<\/tr>\n \u5340\u57df\u50b3\u9001\u5f31\u9ede<\/td>\n \u932f\u8aa4\u8a2d\u5b9a\u7684 AXFR \u8981\u6c42\u6703\u5c07 DNS \u8a18\u9304\u66b4\u9732\u7d66\u653b\u64ca\u8005\u3002<\/td>\n \u653b\u64ca\u8005\u53ef\u80fd\u53d6\u5f97\u4f60\u7684\u7db2\u8def\u67b6\u69cb\u5730\u5716\u3002<\/td>\n<\/tr>\n DNSSEC \u8a2d\u5b9a\u932f\u8aa4<\/td>\n DNSSEC \u8a2d\u5b9a\u932f\u8aa4\u6703\u5c0e\u81f4\u4e2d\u65b7\u3002<\/td>\n \u5176\u4ed6\u670d\u52d9\u53ef\u80fd\u5c07\u4f60\u7684\u7db2\u57df\u8996\u70ba\u4e0d\u5b58\u5728\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n \u4f60\u9084\u61c9\u6ce8\u610f TTL \u503c\u904e\u9ad8\u3001\u958b\u653e\u5f0f DNS \u89e3\u6790\uff08Open Resolver\uff09\uff0c\u4ee5\u53ca\u9673\u820a\u8a18\u9304\u3002\u9019\u4e9b\u554f\u984c\u6703\u62d6\u6162\u66f4\u65b0\u3001\u5e36\u4f86\u5b89\u5168\u98a8\u96aa\uff0c\u4e26\u5c0e\u81f4\u300cDNS \u4f3a\u670d\u5668\u4e0d\u53ef\u7528\u300d\u7b49\u932f\u8aa4\u3002<\/p>\n \u63d0\u793a\uff1a\u5b9a\u671f\u9032\u884c DNS \u7a3d\u6838\u4e26\u4fdd\u6301\u8a18\u9304\u66f4\u65b0\uff0c\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u7576\u6a5f\u98a8\u96aa\u3002<\/p><\/blockquote>\n \u78ba\u8a8d DNS \u670d\u52d9\u72c0\u614b\u8207 53 \u57e0<\/h3>\n \u4f60\u5fc5\u9808\u78ba\u8a8d DNS \u670d\u52d9\u662f\u5426\u6b63\u5728\u57f7\u884c\u4e26\u5728 53 \u57e0\u4e0a\u76e3\u807d\u3002\u4f7f\u7528 netstat<\/code> \u6307\u4ee4\u67e5\u770b\u4f3a\u670d\u5668\u662f\u5426\u5728\u8a72\u57e0\u7dad\u6301\u6d3b\u52d5\u72c0\u614b\u3002\u5c0b\u627e\u985e\u4f3c\u300cUDP IPAddress:53 :<\/em>\u300d\u7684\u8cc7\u8a0a\uff0c\u4ee5\u78ba\u8a8d\u670d\u52d9\u6b63\u5728\u76e3\u807d\u3002\u4f60\u4e5f\u53ef\u4ee5\u4f7f\u7528 telnet<\/code> \u6e2c\u8a66 53 \u57e0\u9023\u901a\u6027\uff0c\u4f46\u8acb\u6ce8\u610f\u5b83\u50c5\u9069\u7528\u65bc TCP\u3002<\/p>\n \u5982\u679c\u767c\u73fe DNS \u4f3a\u670d\u5668\u4e0d\u53ef\u7528\uff0c\u8981\u6aa2\u67e5 53 \u57e0\u662f\u5426\u906d\u5230\u963b\u64cb\u3002\u5c01\u9396\u6b64\u57e0\u6703\u963b\u6b62 DNS \u67e5\u8a62\u4e26\u5c0e\u81f4\u903e\u6642\uff0c\u9032\u800c\u5f15\u8d77\u61c9\u7528\u7a0b\u5f0f\u6545\u969c\uff0c\u4f7f DNS \u4f3a\u670d\u5668\u5c0d\u4f7f\u7528\u8005\u4e0d\u53ef\u7528\u3002\u52d9\u5fc5\u78ba\u4fdd\u9632\u706b\u7246\u5141\u8a31 UDP \u8207 TCP \u7684 53 \u57e0\u6d41\u91cf\u3002<\/p>\n \n \u81f3\u5c11\u90e8\u7f72\u4e3b\u4f3a\u670d\u5668\u8207\u6b21\u8981\u4f3a\u670d\u5668\u5169\u53f0 DNS \u4f3a\u670d\u5668\uff0c\u4ee5\u63d0\u9ad8\u5197\u9918\u3002<\/li>\n \u8b93\u7db2\u57df\u63a7\u5236\u7ad9\u6307\u5411\u53ef\u9760\u7684\u5167\u90e8 DNS \u4f3a\u670d\u5668\u3002<\/li>\n \u76e3\u63a7\u300cDNS \u4f3a\u670d\u5668\u4e0d\u53ef\u7528\u300d\u932f\u8aa4\uff0c\u4e26\u53ca\u6642\u8655\u7406\u3002<\/li>\n<\/ul>\n \u6ce8\u610f\uff1a\u5b9a\u671f\u6aa2\u8996\u8a2d\u5b9a\uff0c\u9810\u9632\u300cDNS \u4f3a\u670d\u5668\u4e0d\u53ef\u7528\u300d\u7b49\u554f\u984c\uff0c\u7dad\u6301\u7db2\u8def\u5065\u5eb7\u904b\u4f5c\u3002<\/p><\/blockquote>\n \u7591\u96e3\u6392\u89e3\u540d\u7a31\u89e3\u6790\u6545\u969c<\/strong><\/h2>\n \u4f7f\u7528\u7db2\u8def\u5c01\u5305\u64f7\u53d6\u5de5\u5177\u9032\u884c DNS \u5206\u6790<\/h3>\n \u900f\u904e\u4f7f\u7528\u7db2\u8def\u5c01\u5305\u64f7\u53d6\u5de5\u5177\u5206\u6790 DNS \u6d41\u91cf\uff0c\u4f60\u53ef\u4ee5\u89e3\u6c7a\u8a31\u591a\u89e3\u6790\u554f\u984c\u3002\u9996\u5148\u5728 UDP 53 \u57e0\u4e0a\u6536\u96c6\u8cc7\u6599\u5c01\u5305\uff0c\u8a72\u57e0\u8ca0\u8cac\u8655\u7406 DNS \u67e5\u8a62\u8207\u56de\u61c9\u3002\u50cf\u662f Wireshark \u8207 tcpdump \u9019\u985e\u5de5\u5177\uff0c\u53ef\u4ee5\u8b93\u4f60\u6aa2\u8996\u7528\u6236\u7aef\u8207\u4f3a\u670d\u5668\u4e4b\u9593\u50b3\u9001\u7684\u6bcf\u4e00\u500b\u5c01\u5305\u3002Wireshark \u63d0\u4f9b\u5354\u5b9a\u5c64\u7d1a\u7684\u53ef\u8996\u6027\uff0c\u5354\u52a9\u4f60\u767c\u73fe\u61c9\u7528\u5c64\u554f\u984c\u8207\u5354\u5b9a\u932f\u8aa4\uff0c\u5c0d\u5e0c\u671b\u6df1\u5165\u638c\u63e1 DNS \u8981\u6c42\u8a3a\u65b7\u7684 IT \u5c08\u696d\u4eba\u54e1\u4f86\u8aaa\u76f8\u7576\u91cd\u8981\u3002<\/p>\n \u4f60\u4e5f\u61c9\u4f7f\u7528 nslookup\u3001dig \u548c DNSChecker \u7b49\u547d\u4ee4\u5217\u5de5\u5177\u3002\u9019\u4e9b\u5de5\u5177\u6709\u52a9\u65bc\u8ffd\u8e64\u5931\u6557\u67e5\u8a62\u3001\u5ef6\u9072\u67e5\u8a62\u8207\u8a2d\u5b9a\u932f\u8aa4\u3002\u5b83\u5011\u53ef\u4ee5\u63ed\u9732\u70ba\u4f55\u7db2\u7ad9\u7121\u6cd5\u8f09\u5165\u3001\u90f5\u4ef6\u7121\u6cd5\u5bc4\u51fa\u6216\u9023\u7dda\u4e2d\u65b7\u3002\u7576\u4f60\u57f7\u884c\u5c01\u5305\u64f7\u53d6\u6642\uff0c\u8981\u7279\u5225\u7559\u610f\u67e5\u8a62\u56de\u61c9\u7de9\u6162\u3001\u8a18\u9304\u7f3a\u5931\u6216\u53ef\u7591\u60e1\u610f\u6d3b\u52d5\u7684\u8de1\u8c61\u3002<\/p>\n \u63d0\u793a\uff1a\u5728\u64f7\u53d6\u5c01\u5305\u524d\uff0c\u52d9\u5fc5\u6e05\u7a7a DNS \u7528\u6236\u7aef\u5feb\u53d6\uff0c\u4ee5\u4fbf\u64f7\u53d6\u6700\u65b0\u7684\u67e5\u8a62\u8207\u56de\u61c9\u3002<\/p><\/blockquote>\n \u5728\u5206\u6790\u5c01\u5305\u6d41\u7a0b\u6642\uff0c\u8acb\u805a\u7126\u4ee5\u4e0b\u95dc\u9375\u6307\u6a19\uff1a<\/p>\n \n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n \u6307\u6a19<\/th>\n \u63cf\u8ff0<\/th>\n<\/tr>\n \u67e5\u8a62\u89e3\u6790\u6642\u9593<\/td>\n \u8861\u91cf DNS \u4f3a\u670d\u5668\u5c07\u7db2\u57df\u540d\u7a31\u8f49\u63db\u70ba IP \u4f4d\u5740\u6240\u9700\u7684\u6642\u9593\u3002\u5ef6\u9072\u904e\u9ad8\u6703\u5f71\u97ff\u4f7f\u7528\u8005\u9ad4\u9a57\u3002<\/td>\n<\/tr>\n DNS \u8a18\u9304\u50b3\u64ad\u6642\u9593<\/td>\n \u53cd\u6620 DNS \u66f4\u65b0\u5728\u5404\u4f3a\u670d\u5668\u9593\u50b3\u64ad\u7684\u6642\u9593\u3002\u50b3\u64ad\u7de9\u6162\u6703\u5c0e\u81f4\u4f7f\u7528\u904e\u671f\u7684\u5c0e\u5411\u8cc7\u8a0a\u3002<\/td>\n<\/tr>\n NXDOMAIN\/SERVFAIL \u932f\u8aa4\u7387<\/td>\n NXDOMAIN \u8868\u793a\u7db2\u57df\u4e0d\u5b58\u5728\uff0cSERVFAIL \u8868\u793a\u8655\u7406\u932f\u8aa4\u3002\u76e3\u63a7\u9019\u4e9b\u932f\u8aa4\u6709\u52a9\u65bc\u767c\u73fe\u8a2d\u5b9a\u554f\u984c\u6216\u653b\u64ca\u884c\u70ba\u3002<\/td>\n<\/tr>\n SOA \u5e8f\u865f\u8b8a\u5316<\/td>\n \u8ffd\u8e64 DNS \u5340\u57df\u6a94\u6848\u7684\u66f4\u65b0\u60c5\u5f62\u3002\u610f\u5916\u8b8a\u66f4\u53ef\u80fd\u4ee3\u8868\u906d\u5230\u7ac4\u6539\u3002<\/td>\n<\/tr>\n TTL\uff08\u5b58\u6d3b\u6642\u9593\uff09\u5230\u671f<\/td>\n \u8868\u793a DNS \u8a18\u9304\u5728\u5feb\u53d6\u4e2d\u4fdd\u7559\u7684\u6642\u9593\u3002\u76e3\u63a7 TTL \u6709\u52a9\u65bc\u5728\u66f4\u65b0\u901f\u5ea6\u8207\u4f3a\u670d\u5668\u8ca0\u8f09\u4e4b\u9593\u53d6\u5f97\u5e73\u8861\u3002<\/td>\n<\/tr>\n DNS \u8981\u6c42\u7570\u5e38\u9ad8\u5cf0<\/td>\n \u8acb\u6c42\u91cf\u7a81\u7136\u6fc0\u589e\u53ef\u80fd\u610f\u5473\u8457 DDoS \u653b\u64ca\u6216\u8a2d\u5b9a\u932f\u8aa4\u3002\u53ca\u65e9\u5075\u6e2c\u6709\u52a9\u65bc\u4fdd\u8b77\u7db2\u8def\u3002<\/td>\n<\/tr>\n \u8a18\u9304\u8b8a\u66f4\uff08A\u3001AAAA\u3001MX\u3001TXT\u3001NS\uff09<\/td>\n \u76e3\u63a7\u95dc\u9375 DNS \u8a18\u9304\u7684\u8b8a\u52d5\uff0c\u53ef\u4ee5\u9632\u6b62\u672a\u6388\u6b0a\u7684\u4fee\u6539\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n \u4f60\u61c9\u8a72\u5728\u6545\u969c\u767c\u751f\u6642\u8490\u96c6\u8a3a\u65b7\u8cc7\u6599\uff0c\u4fdd\u5b58\u5c01\u5305\u64f7\u53d6\u6a94\u8207\u932f\u8aa4\u65e5\u8a8c\u3002\u9019\u4e9b\u8cc7\u8a0a\u6709\u52a9\u65bc\u5f8c\u7e8c\u6df1\u5165\u5206\u6790\uff0c\u4e26\u5728\u9577\u671f\u89c0\u5bdf\u4e2d\u767c\u73fe\u6a21\u5f0f\u3002<\/p>\n \u8655\u7406\u5ef6\u9072\u3001\u67e5\u8a62\u906d\u62d2\u8207\u8a18\u9304\u907a\u5931<\/h3>\n \u8981\u6062\u5fa9\u6b63\u5e38\u670d\u52d9\uff0c\u4f60\u5fc5\u9808\u89e3\u6c7a\u89e3\u6790\u7de9\u6162\u3001\u67e5\u8a62\u906d\u62d2\u8207\u8a18\u9304\u907a\u5931\u7b49\u6839\u672c\u554f\u984c\u3002\u9996\u5148\u6aa2\u67e5\u662f\u5426\u5df2\u70ba\u76ee\u6a19\u7db2\u57df\u8a2d\u5b9a\u689d\u4ef6\u5f0f\u8f49\u9001\u5668\u3002\u5982\u679c\u6c92\u6709\uff0c\u518d\u67e5\u770b\u662f\u5426\u5b58\u5728\u4e00\u822c\u8f49\u9001\u5668\u3002\u82e5\u4e5f\u6c92\u6709\uff0c\u5247\u9700\u8981\u6aa2\u67e5\u6839\u63d0\u793a\u3002\u78ba\u4fdd\u5728\u8f49\u9001\u4f3a\u670d\u5668\u548c\u88ab\u8f49\u9001\u4f3a\u670d\u5668\u4e0a\uff0cDNS Server \u670d\u52d9\u90fd\u5728\u57f7\u884c\uff0c\u540c\u6642\u78ba\u8a8d\u6240\u6709 DNS \u4f3a\u670d\u5668\u4e4b\u9593\u7684 UDP 53 \u57e0\u901a\u8a0a\u9806\u66a2\u3002<\/p>\n \u53ef\u4f9d\u7167\u4e0b\u5217\u6b65\u9a5f\u4f86\u89e3\u6c7a\u540d\u7a31\u89e3\u6790\u6545\u969c\uff1a<\/p>\n \n \u6aa2\u67e5\u53d7\u5f71\u97ff\u7db2\u57df\u662f\u5426\u8a2d\u5b9a\u4e86\u689d\u4ef6\u5f0f\u8f49\u9001\u5668\u3002<\/li>\n \u82e5\u6c92\u6709\uff0c\u6aa2\u67e5\u4f3a\u670d\u5668\u4e0a\u662f\u5426\u5b58\u5728\u4e00\u822c\u8f49\u9001\u5668\u3002<\/li>\n \u82e5\u4ecd\u672a\u89e3\u6c7a\uff0c\u6aa2\u8996 DNS \u4f3a\u670d\u5668\u4e0a\u7684\u6839\u63d0\u793a\u8a2d\u5b9a\u3002<\/li>\n \u78ba\u8a8d\u6240\u6709\u76f8\u95dc\u4f3a\u670d\u5668\u4e0a\u7684 DNS Server \u670d\u52d9\u7686\u70ba\u57f7\u884c\u72c0\u614b\u3002<\/li>\n \u78ba\u8a8d\u6240\u6709 DNS \u4f3a\u670d\u5668\u4e4b\u9593\u7684 UDP 53 \u57e0\u5747\u70ba\u958b\u555f\u72c0\u614b\u3002<\/li>\n \u6e05\u7a7a DNS \u7528\u6236\u7aef\u5feb\u53d6\u4e26\u64f7\u53d6\u5c01\u5305\uff0c\u4ee5\u8ffd\u8e64 DNS \u5c01\u5305\u7684\u6d41\u5411\u3002<\/li>\n<\/ol>\n \u4f60\u61c9\u8a72\u76e3\u63a7\u56de\u61c9\u4ee3\u78bc\uff0c\u4ee5\u4e86\u89e3\u6240\u9762\u81e8\u7684\u6545\u969c\u985e\u578b\u3002\u4e0b\u8868\u5217\u51fa\u5e38\u898b DNS \u56de\u61c9\u4ee3\u78bc\u53ca\u5176\u51fa\u73fe\u983b\u7387\uff1a<\/p>\n \n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n \u56de\u61c9\u4ee3\u78bc<\/th>\n \u6b21\u6578<\/th>\n \u767e\u5206\u6bd4<\/th>\n<\/tr>\n NOERROR<\/td>\n 20757<\/td>\n 71.17%<\/td>\n<\/tr>\n SERVFAIL<\/td>\n 126<\/td>\n 0.43%<\/td>\n<\/tr>\n NXDOMAIN<\/td>\n 6774<\/td>\n 23.22%<\/td>\n<\/tr>\n REFUSED<\/td>\n 1510<\/td>\n 5.18%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n NXDOMAIN \u6bd4\u4f8b\u904e\u9ad8\u901a\u5e38\u8868\u793a\u8a18\u9304\u907a\u5931\u6216\u8a2d\u5b9a\u62fc\u5beb\u932f\u8aa4\u3002SERVFAIL \u932f\u8aa4\u5f80\u5f80\u4ee3\u8868\u4f3a\u670d\u5668\u8655\u7406\u554f\u984c\u6216\u8a2d\u5b9a\u932f\u8aa4\u3002REFUSED \u5247\u8868\u793a\u4f3a\u670d\u5668\u62d2\u7d55\u4e86\u67e5\u8a62\u8acb\u6c42\uff0c\u53ef\u80fd\u662f\u56e0\u70ba\u5b58\u53d6\u63a7\u5236\u7b56\u7565\u5c01\u9396\u4e86\u8a72\u8acb\u6c42\u3002<\/p>\n \u4f60\u4e5f\u61c9\u95dc\u6ce8\u5ef6\u9072\u554f\u984c\u3002\u904e\u9ad8\u7684\u67e5\u8a62\u89e3\u6790\u6642\u9593\u6703\u62d6\u6162\u7db2\u7ad9\u8207\u61c9\u7528\u7a0b\u5f0f\u3002\u4f7f\u7528\u7db2\u8def\u5c01\u5305\u64f7\u53d6\u5de5\u5177\u6e2c\u91cf\u6bcf\u500b\u67e5\u8a62\u7684\u8017\u6642\u3002\u5982\u679c\u767c\u73fe\u5ef6\u9072\u660e\u986f\u589e\u52a0\uff0c\u8981\u6aa2\u67e5\u4f3a\u670d\u5668\u8ca0\u8f09\u3001\u7db2\u8def\u58c5\u585e\u6216 DNS \u8a18\u9304\u50b3\u64ad\u904e\u6162\u7b49\u554f\u984c\u3002<\/p>\n \u6ce8\u610f\uff1a\u8acb\u52d9\u5fc5\u8a18\u9304\u4f60\u7684\u6392\u67e5\u6b65\u9a5f\u8207\u7d50\u8ad6\uff0c\u9019\u6709\u52a9\u65bc\u5efa\u7acb\u77e5\u8b58\u5eab\uff0c\u8b93\u672a\u4f86\u7684\u554f\u984c\u5b9a\u4f4d\u8207\u4fee\u5fa9\u66f4\u70ba\u5feb\u901f\u3002<\/p><\/blockquote>\n \n <\/div>\n<\/div>\n \u4f60\u53ef\u4ee5\u900f\u904e\u6e05\u6670\u7684\u6392\u67e5\u6d41\u7a0b\u4f86\u89e3\u6c7a\u5916\u90e8 DNS \u7d44\u614b\u6545\u969c\u3002\u521d\u59cb\u968e\u6bb5\u53ef\u4ee5\u4f9d\u7167\u4e0b\u5217\u6b65\u9a5f\u9032\u884c\uff1a<\/p>\n \n \u6aa2\u67e5\u662f\u5426\u5df2\u70ba\u76ee\u6a19\u7db2\u57df\u8a2d\u5b9a\u689d\u4ef6\u5f0f\u8f49\u9001\u5668\u3002<\/li>\n \u82e5\u6c92\u6709\uff0c\u5728\u4f3a\u670d\u5668\u4e0a\u5c0b\u627e\u4e00\u822c\u8f49\u9001\u5668\u3002<\/li>\n \u82e5\u4e0d\u5b58\u5728\u4efb\u4f55\u8f49\u9001\u5668\uff0c\u6aa2\u67e5 DNS \u4f3a\u670d\u5668\u4e0a\u7684\u6839\u63d0\u793a\u8a2d\u5b9a\u3002<\/li>\n \u78ba\u8a8d DNS \u670d\u52d9\u72c0\u614b\u8207\u7db2\u8def\u9023\u901a\u6027\u662f\u5426\u6b63\u5e38\u3002<\/li>\n \u64f7\u53d6\u7db2\u8def\u5c01\u5305\uff0c\u4ee5\u8ffd\u8e64\u7528\u6236\u7aef\u8207\u4f3a\u670d\u5668\u4e4b\u9593\u7684 DNS \u901a\u8a0a\u3002<\/li>\n<\/ol>\n \u70ba\u907f\u514d\u5f8c\u7e8c\u554f\u984c\uff0c\u4f60\u61c9\u76e3\u63a7\u95dc\u9375\u7db2\u57df\u8207\u8a18\u9304\u985e\u578b\uff08\u5982 A\u3001MX\u3001CNAME\u3001NS\u3001TXT\uff09\u3002\u8a2d\u5b9a\u8b66\u793a\u95be\u503c\u4e26\u4f7f\u7528\u8996\u89ba\u5316\u5100\u8868\u677f\u89c0\u5bdf\u8da8\u52e2\uff0c\u5c07\u8b66\u793a\u6574\u5408\u5230\u901a\u77e5\u7cfb\u7d71\u4e2d\uff0c\u4ee5\u4fbf\u5feb\u901f\u56de\u61c9\u3002\u540c\u6642\u5728\u4e0d\u540c\u5730\u5340\u90e8\u7f72\u76e3\u6e2c\u7bc0\u9ede\uff0c\u6db5\u84cb\u4f3a\u670d\u5668\u6240\u652f\u63f4\u7684\u5168\u90e8\u5340\u57df\u3002<\/p>\n \u4f60\u9084\u61c9\u5b9a\u671f\u6aa2\u67e5 DNS \u65e5\u8a8c\uff0c\u7559\u610f\u7570\u5e38\u6d3b\u52d5\u4e26\u9032\u884c\u7a3d\u6838\u3002\u9019\u6709\u52a9\u65bc\u7dad\u8b77\u4f3a\u670d\u5668\u5b89\u5168\uff0c\u4e26\u78ba\u4fdd DNS \u8a2d\u5b9a\u7684\u6b63\u78ba\u6027\u3002<\/p>\n \u5e38\u898b\u554f\u7b54\uff08FAQ\uff09<\/strong><\/h2>\n \u4ec0\u9ebc\u662f DNS \u8f49\u9001\u5668\uff1f<\/h3>\n DNS \u8f49\u9001\u5668\u6703\u5c07\u4f60\u7684\u4f3a\u670d\u5668\u6536\u5230\u7684 DNS \u67e5\u8a62\u8f49\u9001\u5230\u5916\u90e8 DNS \u4f3a\u670d\u5668\u3002\u4f60\u5728\u89e3\u6790\u5916\u90e8\u7db2\u57df\u540d\u7a31\u6642\u6703\u4f7f\u7528\u8f49\u9001\u5668\uff0c\u5176\u512a\u9ede\u662f\u63d0\u5347\u89e3\u6790\u901f\u5ea6\u4e26\u52a0\u5f37\u5b89\u5168\u6027\u3002<\/p>\n \u5982\u4f55\u5224\u65b7 DNS \u7684 53 \u57e0\u662f\u5426\u906d\u5230\u963b\u64cb\uff1f<\/h3>\n \u4f60\u53ef\u4ee5\u4f7f\u7528 netstat -an | find \"53\"<\/code> \u6307\u4ee4\uff0c\u6aa2\u67e5\u4f3a\u670d\u5668\u662f\u5426\u5728 53 \u57e0\u4e0a\u76e3\u807d\u3002\u5982\u679c\u6c92\u6709\u4efb\u4f55\u7d50\u679c\uff0c\u53ef\u80fd\u662f\u9632\u706b\u7246\u5c01\u9396\u4e86\u8a72\u57e0\u3002<\/p>\n \u70ba\u4ec0\u9ebc\u9700\u8981\u6e05\u7a7a DNS \u5feb\u53d6\uff1f<\/h3>\n \u6e05\u7a7a DNS \u5feb\u53d6\u53ef\u4ee5\u79fb\u9664\u904e\u671f\u6216\u932f\u8aa4\u8a18\u9304\uff0c\u5354\u52a9\u4f60\u53d6\u5f97\u6700\u65b0\u4f4d\u5740\uff0c\u4e26\u5feb\u901f\u4fee\u5fa9\u540d\u7a31\u89e3\u6790\u932f\u8aa4\u3002<\/p>\n \u6709\u54ea\u4e9b\u5de5\u5177\u53ef\u4ee5\u5354\u52a9\u5206\u6790 DNS \u6d41\u91cf\uff1f<\/h3>\n \u4f60\u53ef\u4ee5\u4f7f\u7528 Wireshark\u3001tcpdump \u6216 nslookup\u3002\u9019\u4e9b\u5de5\u5177\u80fd\u5354\u52a9\u4f60\u64f7\u53d6\u5c01\u5305\u3001\u6e2c\u8a66\u67e5\u8a62\u4e26\u627e\u51fa DNS \u6545\u969c\u767c\u751f\u7684\u4f4d\u7f6e\u3002<\/p>\n \u5982\u4f55\u9810\u9632\u672a\u4f86\u7684 DNS \u6545\u969c\uff1f<\/h3>\n \u5b9a\u671f\u6aa2\u8996 DNS \u65e5\u8a8c\u4e26\u66f4\u65b0\u8a18\u9304\uff0c\u70ba\u7570\u5e38\u6d3b\u52d5\u8a2d\u5b9a\u8b66\u793a\u3002\u5f9e\u591a\u500b\u5730\u9ede\u6e2c\u8a66 DNS \u89e3\u6790\uff0c\u4ee5\u4fbf\u53ca\u65e9\u767c\u73fe\u554f\u984c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":" \u4f60\u53ef\u4ee5\u805a\u7126\u6700\u5e38\u898b\u7684\u539f\u56e0\u4f86\u89e3\u6c7a\u5916\u90e8 DNS \u7d44\u614b\u6545\u969c\u3002\u9996\u5148\u8981\u78ba\u8a8d\u54ea\u4e9b\u7528\u6236\u7aef\u9047\u5230\u4e86\u540d\u7a31\u89e3\u6790\u554f\u984c\u3002\u5982\u679c\u4f60\u5728\u4f7f\u7528\u7f8e\u570b\u4f3a […]<\/p>\n Read More…<\/a><\/p>\n","protected":false},"author":2,"featured_media":32339,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4815],"tags":[11554,3570,2692,2068,743],"class_list":["post-32343","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-america-dedicated-server-tc","tag-external-dns","tag-dns-configuration-tc","tag-dns-troubleshooting-tc","tag-dns-server-tc","tag-743"],"acf":[],"yoast_head":"\n