\u4f60\u5e94\u8be5\u6309\u7167\u5faa\u5e8f\u6e10\u8fdb\u7684\u6d41\u7a0b\u6765\u6392\u67e5\u5e76\u5feb\u901f\u4fee\u590d\u8fd9\u4e9b\u95ee\u9898\u3002<\/p>\n

\u5173\u952e\u8981\u70b9<\/strong><\/h2>\n

\n
• \u4f7f\u7528 NetBeez \u548c ThousandEyes \u7b49\u76d1\u63a7\u5de5\u5177\u8bc6\u522b\u5b58\u5728 DNS \u89e3\u6790\u95ee\u9898\u7684\u5ba2\u6237\u7aef\u3002<\/li>\n
• \u901a\u8fc7\u68c0\u67e5\u670d\u52a1\u5668\u53ef\u7528\u6027\u3001\u914d\u7f6e\u9519\u8bef\u548c\u7f51\u7edc\u8fde\u901a\u6027\u6765\u8bc4\u4f30 DNS \u6545\u969c\u7684\u8303\u56f4\u3002<\/li>\n
• \u4f7f\u7528 ping \u6d4b\u8bd5\u9a8c\u8bc1\u7f51\u7edc\u8fde\u901a\u6027\uff0c\u786e\u4fdd DNS \u89e3\u6790\u6b63\u5e38\u5de5\u4f5c\u3002<\/li>\n
• \u68c0\u67e5 DNS \u8f6c\u53d1\u5668\u548c\u6839\u63d0\u793a\uff08Root Hints\uff09\u7684\u914d\u7f6e\u662f\u5426\u6b63\u786e\uff0c\u4ee5\u9632\u6b62\u670d\u52a1\u4e2d\u65ad\u3002<\/li>\n
• \u4f7f\u7528 Wireshark \u7b49\u7f51\u7edc\u6293\u5305\u5de5\u5177\u5206\u6790 DNS \u6d41\u91cf\u5e76\u89e3\u51b3\u540d\u79f0\u89e3\u6790\u6545\u969c\u3002<\/li>\n<\/ul>\n

  \u8bc6\u522b DNS \u540d\u79f0\u89e3\u6790\u6545\u969c<\/strong><\/h2>\n

  \u5b9a\u4f4d\u53d7\u5f71\u54cd\u7684\u5ba2\u6237\u7aef<\/h3>\n

  \u4f60\u9700\u8981\u5148\u627e\u51fa\u54ea\u4e9b\u5ba2\u6237\u7aef\u9047\u5230\u4e86 DNS \u540d\u79f0\u89e3\u6790\u6545\u969c\u3002\u53ef\u4ee5\u4ece\u4f7f\u7528\u76d1\u63a7\u5de5\u5177\u5f00\u59cb\uff0c\u8fd9\u4e9b\u5de5\u5177\u4f1a\u5728\u6027\u80fd\u4e0b\u964d\u6216\u8bbf\u95ee\u5f02\u5e38\u65f6\u53d1\u51fa\u544a\u8b66\u3002NetBeez \u548c ThousandEyes \u80fd\u5e2e\u52a9\u4f60\u5feb\u901f\u53d1\u73b0\u95ee\u9898\u3002\u5b83\u4eec\u4f1a\u53d1\u9001\u5b9e\u65f6\u544a\u8b66\uff0c\u5e76\u5141\u8bb8\u4f60\u5206\u6790 DNS \u54cd\u5e94\u65f6\u95f4\u3002\u4f60\u53ef\u4ee5\u540c\u65f6\u76d1\u63a7\u672c\u5730\u548c\u5916\u90e8 DNS \u670d\u52a1\u5668\uff0c\u4ece\u800c\u5224\u65ad\u95ee\u9898\u6e90\u5934\u3002<\/p>\n

  \n
  • NetBeez \u63d0\u4f9b\u5408\u6210\u76d1\u63a7\u6d4b\u8bd5\uff0c\u5e76\u8ddf\u8e2a DNS \u6027\u80fd\u8d8b\u52bf\u3002<\/li>\n
  • ThousandEyes \u80fd\u8ffd\u8e2a DNS \u5c42\u7ea7\u7ed3\u6784\uff0c\u7a81\u51fa\u663e\u793a\u670d\u52a1\u5668\u6027\u80fd\u95ee\u9898\u6216\u8bb0\u5f55\u914d\u7f6e\u9519\u8bef\u3002<\/li>\n
  • \u5b9e\u65f6\u544a\u8b66\u53ef\u4ee5\u6307\u793a\u6027\u80fd\u4e0b\u964d\u3002<\/li>\n
  • \u4f60\u53ef\u4ee5\u5206\u6790 DNS \u54cd\u5e94\u65f6\u95f4\u548c\u53ef\u7528\u6027\u3002<\/li>\n
  • \u76d1\u63a7\u8303\u56f4\u8986\u76d6\u5185\u90e8\u548c\u5916\u90e8 DNS \u670d\u52a1\u5668\u3002<\/li>\n<\/ul>\n

    \u5728\u8bc6\u522b\u51fa\u53d7\u5f71\u54cd\u7684\u5ba2\u6237\u7aef\u540e\uff0c\u4f7f\u7528\u8bca\u65ad\u547d\u4ee4\u6765\u786e\u8ba4\u95ee\u9898\u3002\u8fd0\u884c ipconfig \/flushdns<\/code> \u6e05\u7a7a\u5ba2\u6237\u7aef\u7f13\u5b58\u3002\u6293\u53d6\u7f51\u7edc\u6d41\u91cf\uff0c\u5e76\u8fc7\u6ee4 UDP 53 \u7aef\u53e3\uff0c\u67e5\u770b DNS \u6570\u636e\u5305\u662f\u5426\u5230\u8fbe\u670d\u52a1\u5668\u3002\u6b64\u6b65\u9aa4\u6709\u52a9\u4e8e\u5c06 DNS \u540d\u79f0\u89e3\u6790\u6545\u969c\u4e0e\u5176\u4ed6\u7f51\u7edc\u95ee\u9898\u533a\u5206\u5f00\u6765\u3002<\/p>\n

    \u8bc4\u4f30\u6545\u969c\u8303\u56f4<\/h3>\n

    \u5728\u68c0\u6d4b\u5230\u53d7\u5f71\u54cd\u7684\u5ba2\u6237\u7aef\u540e\uff0c\u4f60\u5fc5\u987b\u8bc4\u4f30\u6545\u969c\u8303\u56f4\u6709\u591a\u5927\u3002\u7559\u610f\u4e00\u4e9b\u5173\u952e\u6307\u6807\u6765\u5224\u65ad\u95ee\u9898\u7684\u8986\u76d6\u9762\u3002\u4e0b\u8868\u53ef\u4ee5\u5e2e\u52a9\u4f60\u5c06 DNS \u6545\u969c\u4e0e\u5176\u4ed6\u7f51\u7edc\u95ee\u9898\u533a\u5206\uff1a<\/p>\n

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

    \u95ee\u9898\u7c7b\u578b<\/th>\n	\u63cf\u8ff0<\/th>\n<\/tr>\n
    DNS \u670d\u52a1\u5668\u4e0d\u53ef\u7528<\/td>\n	\u540d\u79f0\u670d\u52a1\u5668\u79bb\u7ebf\u6216\u9ad8\u5ef6\u8fdf\uff0c\u5bfc\u81f4\u65e0\u6cd5\u53ca\u65f6\u5b8c\u6210\u89e3\u6790\u3002<\/td>\n<\/tr>\n
    \u914d\u7f6e\u9519\u8bef<\/td>\n	DNS \u8bb0\u5f55\u8bbe\u7f6e\u9519\u8bef\u6216\u8bb0\u5f55\u8fc7\u671f\uff0c\u5bfc\u81f4\u89e3\u6790\u5931\u8d25\u3002<\/td>\n<\/tr>\n
    \u7f51\u7edc\u8fde\u901a\u6027\u95ee\u9898<\/td>\n	\u9632\u706b\u5899\u6216\u7f51\u7edc\u62e5\u585e\u963b\u65ad DNS \u6d41\u91cf\uff0c\u5e72\u6270\u89e3\u6790\u8fc7\u7a0b\u3002<\/td>\n<\/tr>\n
    \u533a\u57df\u6587\u4ef6\u9519\u8bef<\/td>\n	\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684\u8bed\u6cd5\u9519\u8bef\u4f1a\u963b\u6b62\u6b63\u5e38\u89e3\u6790\u3002<\/td>\n<\/tr>\n
    \u4f20\u64ad\u5ef6\u8fdf<\/td>\n	DNS \u8bb0\u5f55\u53d8\u66f4\u9700\u8981\u65f6\u95f4\u4f20\u64ad\uff0c\u5728\u6b64\u671f\u95f4\u4f1a\u51fa\u73b0\u89e3\u6790\u4e0d\u4e00\u81f4\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n \u4f60\u8fd8\u5e94\u8be5\u68c0\u67e5\u670d\u52a1\u53ef\u8fbe\u6027\u3001DNS \u6620\u5c04\u3001\u9632\u706b\u5899\u8bbe\u7f6e\u548c\u8def\u7531\u60c5\u51b5\u3002\u8bc4\u4f30\u4e1a\u52a1\u90e8\u95e8\u3001VLAN\u3001\u4e91\u8d26\u6237\u4ee5\u53ca\u8fdc\u7a0b\u7aef\u70b9\uff0c\u67e5\u770b\u6545\u969c\u662f\u5426\u5f71\u54cd\u591a\u4e2a\u533a\u57df\u3002\u4f7f\u7528\u8bc4\u5206\u51fd\u6570\u548c\u6a21\u5757\u5316\u6807\u51c6\u6765\u8861\u91cf\u5f71\u54cd\u7a0b\u5ea6\u3002\u5982\u679c\u51fa\u73b0\u7f51\u7ad9\u6216\u5e94\u7528\u65e0\u6cd5\u8bbf\u95ee\u3001\u4f9d\u8d56\u670d\u52a1\u5931\u8d25\u6216\u4e0d\u540c\u5730\u533a\u8bbf\u95ee\u7ed3\u679c\u4e0d\u4e00\u81f4\uff0c\u5f88\u53ef\u80fd\u5b58\u5728 DNS \u540d\u79f0\u89e3\u6790\u95ee\u9898\u3002<\/p>\n \n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n \u5173\u952e\u6307\u6807<\/th>\n \u63cf\u8ff0<\/th>\n<\/tr>\n \u7f51\u7ad9\u548c\u5e94\u7528\u4e0d\u53ef\u8bbf\u95ee<\/td>\n \u5728 Web \u670d\u52a1\u5668\u6b63\u5e38\u7684\u60c5\u51b5\u4e0b\u7ad9\u70b9\u6216\u5e94\u7528\u4e0d\u53ef\u8fbe\uff0c\u901a\u5e38\u8868\u660e\u5b58\u5728 DNS \u6545\u969c\u3002<\/td>\n<\/tr>\n \u4f9d\u8d56\u670d\u52a1\u5931\u8d25<\/td>\n \u7531\u4e8e DNS \u8bb0\u5f55\u672a\u89e3\u6790\u6210\u529f\uff0c\u90ae\u4ef6\u548c API \u7b49\u670d\u52a1\u51fa\u73b0\u6545\u969c\u3002<\/td>\n<\/tr>\n \u5185\u90e8\u89e3\u6790\u9519\u8bef<\/td>\n \u5458\u5de5\u65e0\u6cd5\u8bbf\u95ee\u5185\u90e8\u8d44\u6e90\uff0c\u591a\u534a\u610f\u5473\u7740\u5185\u90e8 DNS \u89e3\u6790\u5931\u8d25\u3002<\/td>\n<\/tr>\n \u8bbf\u95ee\u4e0d\u4e00\u81f4<\/td>\n \u4e0d\u540c\u5730\u533a\u7684\u7528\u6237\u8bbf\u95ee\u60c5\u51b5\u4e0d\u4e00\u81f4\uff0c\u901a\u5e38\u6697\u793a DNS \u4f20\u64ad\u95ee\u9898\u3002<\/td>\n<\/tr>\n \u8bca\u65ad\u5de5\u5177\u5931\u8d25<\/td>\n \u901a\u8fc7 IP \u53ef\u8bbf\u95ee\uff0c\u4f46\u901a\u8fc7\u57df\u540d\u5931\u8d25\uff0c\u5373\u53ef\u786e\u8ba4\u662f DNS \u95ee\u9898\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n \u63d0\u793a\uff1a\u52a1\u5fc5\u8bb0\u5f55\u51fa\u73b0\u6545\u969c\u7684\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u3002\u8fd9\u4e9b\u8bb0\u5f55\u6709\u52a9\u4e8e\u53d1\u73b0\u6a21\u5f0f\uff0c\u5e76\u52a0\u5feb\u540e\u7eed\u6392\u67e5\u3002<\/p><\/blockquote>\n \u68c0\u67e5\u5916\u90e8 DNS \u914d\u7f6e\u548c\u8fde\u901a\u6027<\/strong><\/h2>\n \u4f7f\u7528 Ping \u6d4b\u8bd5\u9a8c\u8bc1\u7f51\u7edc\u8fde\u901a\u6027<\/h3>\n \u4f60\u5e94\u8be5\u5148\u4ece\u6d4b\u8bd5\u7f51\u7edc\u8fde\u901a\u6027\u5f00\u59cb\u3002\u4f7f\u7528 ping \u6d4b\u8bd5\u68c0\u67e5\u670d\u52a1\u5668\u662f\u5426\u80fd\u8bbf\u95ee\u5916\u90e8\u8d44\u6e90\u3002Ping \u6d4b\u8bd5\u53ef\u4ee5\u8861\u91cf\u4e3b\u673a\u53ef\u8fbe\u6027\u3001\u5f80\u8fd4\u5ef6\u8fdf\u4ee5\u53ca\u4e22\u5305\u7387\u3002\u5982\u679c\u5728 ping \u57df\u540d\u65f6\u51fa\u73b0\u201cPing request could not find host www.google.com\u201d\u4e4b\u7c7b\u7684\u9519\u8bef\uff0c\u4f46 ping \u8be5 IP \u5730\u5740\u5374\u6b63\u5e38\uff0c\u90a3\u4e48\u95ee\u9898\u5c31\u5728\u4e8e DNS \u89e3\u6790\u3002\u8fd9\u8bf4\u660e\u7f51\u7edc\u8fde\u901a\u6027\u672c\u8eab\u6b63\u5e38\uff0c\u4f46\u5916\u90e8 DNS \u914d\u7f6e\u672a\u6b63\u5e38\u5de5\u4f5c\u3002\u4f7f\u7528\u5916\u90e8 DNS \u670d\u52a1\u5668\u65f6\uff0cDNS \u8bf7\u6c42\u8d85\u65f6\u4e5f\u80fd\u8fdb\u4e00\u6b65\u786e\u8ba4\u8fd9\u4e00\u70b9\u3002<\/p>\n \u53ef\u6309\u4ee5\u4e0b\u6b65\u9aa4\u64cd\u4f5c\uff1a<\/p>\n \n \u6253\u5f00\u547d\u4ee4\u63d0\u793a\u7b26\u3002<\/li>\n \u8fd0\u884c ping www.google.com<\/code> \u6d4b\u8bd5 DNS \u89e3\u6790\u3002<\/li>\n \u8fd0\u884c ping 172.217.5.68<\/code> \u6d4b\u8bd5\u76f4\u63a5\u7f51\u7edc\u8fde\u901a\u6027\u3002<\/li>\n \u5982\u679c\u57df\u540d\u6d4b\u8bd5\u5931\u8d25\u800c IP \u6210\u529f\uff0c\u5219\u91cd\u70b9\u6392\u67e5 DNS \u95ee\u9898\u3002<\/li>\n<\/ol>\n \u63d0\u793a\uff1a\u52a1\u5fc5\u8bb0\u5f55\u6bcf\u6b21 ping \u6d4b\u8bd5\u7ed3\u679c\uff0c\u8fd9\u6709\u52a9\u4e8e\u8ddf\u8e2a\u53cd\u590d\u51fa\u73b0\u7684\u8fde\u901a\u6027\u95ee\u9898\u3002<\/p><\/blockquote>\n \u68c0\u67e5 DNS \u8f6c\u53d1\u5668\u548c\u6839\u63d0\u793a<\/h3>\n \u4f60\u5fc5\u987b\u68c0\u67e5 DNS \u8f6c\u53d1\u5668\u548c\u6839\u63d0\u793a\u662f\u5426\u5b58\u5728\u914d\u7f6e\u9519\u8bef\u3002\u9996\u5148\u6253\u5f00 DNS \u7ba1\u7406\u5668\u3002\u5728 Root Hints\uff08\u6839\u63d0\u793a\uff09\u8282\u70b9\u4e2d\u67e5\u770b\u662f\u5426\u5217\u51fa\u4e86\u6839\u540d\u79f0\u670d\u52a1\u5668\u7684 IP \u5730\u5740\u3002\u5982\u679c\u7f3a\u5931\u6216\u4e0d\u6b63\u786e\uff0c\u53f3\u952e\u9009\u62e9\u201cNew Root Hints\u201d\u6dfb\u52a0\u65b0\u6761\u76ee\u3002\u5c55\u5f00 Forwarders\uff08\u8f6c\u53d1\u5668\uff09\u8282\u70b9\u5e76\u6838\u5bf9\u8f6c\u53d1 DNS \u670d\u52a1\u5668\u7684 IP \u5730\u5740\u3002\u5982\u6709\u9700\u8981\uff0c\u6dfb\u52a0\u65b0\u7684\u8f6c\u53d1\u5668\u3002<\/p>\n \n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n \u6b65\u9aa4<\/th>\n \u64cd\u4f5c<\/th>\n \u63cf\u8ff0<\/th>\n<\/tr>\n 1<\/td>\n \u6253\u5f00 DNS \u7ba1\u7406\u5668<\/td>\n \u8fdb\u5165 DNS \u7ba1\u7406\u5668\u63a7\u5236\u53f0\u3002<\/td>\n<\/tr>\n 2<\/td>\n \u5c55\u5f00 Root Hints<\/td>\n \u68c0\u67e5 Root Hints \u8282\u70b9\u662f\u5426\u914d\u7f6e\u6b63\u786e\u3002<\/td>\n<\/tr>\n 3<\/td>\n \u9a8c\u8bc1 IP<\/td>\n \u786e\u4fdd\u6839\u540d\u79f0\u670d\u52a1\u5668 IP \u5df2\u6b63\u786e\u5217\u51fa\u3002<\/td>\n<\/tr>\n 4<\/td>\n \u6dfb\u52a0\u6839\u63d0\u793a<\/td>\n \u5982\u6709\u9519\u8bef\u6216\u7f3a\u5931\uff0c\u6dfb\u52a0\u65b0\u7684\u6839\u63d0\u793a\u6761\u76ee\u3002<\/td>\n<\/tr>\n 5<\/td>\n \u5c55\u5f00 Forwarders<\/td>\n \u68c0\u67e5 Forwarders \u8282\u70b9\u7684\u914d\u7f6e\u3002<\/td>\n<\/tr>\n 6<\/td>\n \u9a8c\u8bc1\u8f6c\u53d1\u5668<\/td>\n \u786e\u8ba4\u8f6c\u53d1 DNS \u670d\u52a1\u5668 IP \u5df2\u6b63\u786e\u914d\u7f6e\u3002<\/td>\n<\/tr>\n 7<\/td>\n \u6dfb\u52a0\u8f6c\u53d1\u5668<\/td>\n \u5982\u6709\u9700\u8981\uff0c\u6dfb\u52a0\u65b0\u7684\u8f6c\u53d1\u5668\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n \u9519\u8bef\u7684 DNS \u8f6c\u53d1\u5668\u8bbe\u7f6e\u4f1a\u5bfc\u81f4\u670d\u52a1\u4e2d\u65ad\u3001\u90ae\u4ef6\u901a\u4fe1\u4e2d\u65ad\uff0c\u751a\u81f3\u5e26\u6765\u5b89\u5168\u6f0f\u6d1e\u3002\u4f60\u5e94\u5f53\u786e\u8ba4\u5bf9\u5e94\u533a\u57df\u5df2\u5b58\u5728\u4e14\u8bb0\u5f55\u5b8c\u6574\u3002\u901a\u8fc7\u9a8c\u8bc1\u8f6c\u53d1\u5668\u548c\u6839\u63d0\u793a\u914d\u7f6e\uff0c\u53ef\u4ee5\u6709\u6548\u9884\u9632\u5916\u90e8 DNS \u914d\u7f6e\u6545\u969c\u3002<\/p>\n \u6ce8\u610f\uff1a\u5728 Active Directory \u73af\u5883\u4e2d\uff0c\u4f7f\u7528 ipconfig \/all<\/code> \u68c0\u67e5 DNS \u5ba2\u6237\u7aef\u8bbe\u7f6e\u3002\u5728\u7f51\u7edc\u5c5e\u6027\u4e2d\u4fee\u6539\u8bbe\u7f6e\uff0c\u5e76\u901a\u8fc7 ipconfig \/flushdns<\/code> \u6e05\u7a7a DNS \u89e3\u6790\u5668\u7f13\u5b58\u3002\u4f7f\u7528 ipconfig \/registerdns<\/code> \u6ce8\u518c DNS \u8bb0\u5f55\u3002\u6700\u540e\u5728 DNS \u7ba1\u7406\u63a7\u5236\u53f0\u4e2d\u786e\u8ba4\u4e3b\u673a\u3001SOA \u548c NS \u8bb0\u5f55\u662f\u5426\u9f50\u5168\u3002<\/p><\/blockquote>\n \u68c0\u67e5 DNS \u670d\u52a1\u5668\u8bbe\u7f6e<\/strong><\/h2>\n \u9a8c\u8bc1\u533a\u57df\u4e0e\u8bb0\u5f55\u914d\u7f6e<\/h3>\n \u4f60\u9700\u8981\u68c0\u67e5 DNS \u670d\u52a1\u5668\u914d\u7f6e\uff0c\u4ee5\u907f\u514d\u5e38\u89c1\u95ee\u9898\u3002\u5148\u786e\u8ba4\u5ba2\u6237\u7aef\u6307\u5411\u4e86\u6b63\u786e\u7684 DNS \u670d\u52a1\u5668\u3002\u7136\u540e\u786e\u8ba4\u5bf9\u5e94\u533a\u57df\u662f\u5426\u5b58\u5728\uff0c\u5e76\u4e14\u5305\u542b\u6240\u6709\u9884\u671f\u8bb0\u5f55\u3002\u4f7f\u7528 DNS \u7ba1\u7406\u63a7\u5236\u53f0\u68c0\u67e5\u8f6c\u53d1\u5668\u548c\u6839\u63d0\u793a\u3002\u4f60\u8fd8\u5e94\u5f53\u67e5\u770b DNS \u670d\u52a1\u5668\u4e8b\u4ef6\u65e5\u5fd7\uff0c\u5224\u65ad\u662f\u5426\u5b58\u5728\u9519\u8bef\u6216\u8b66\u544a\u3002\u4ece\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u5206\u522b\u6267\u884c\u540c\u6837\u7684 DNS \u67e5\u8be2\uff0c\u4ee5\u6bd4\u8f83\u7ed3\u679c\u3002<\/p>\n \u8bb8\u591a\u95ee\u9898\u6e90\u4e8e\u8bb0\u5f55\u7f3a\u5931\u6216\u9519\u8bef\u3002\u4e0b\u8868\u5c55\u793a\u4e86\u5e38\u89c1\u9519\u8bef\u53ca\u5176\u5f71\u54cd\uff1a<\/p>\n \n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n \u9519\u8bef\u7c7b\u578b<\/th>\n \u63cf\u8ff0<\/th>\n \u5bf9\u529f\u80fd\u4e0e\u5b89\u5168\u7684\u5f71\u54cd<\/th>\n<\/tr>\n CNAME \u8bb0\u5f55\u95ee\u9898<\/td>\n \u94fe\u5f0f\u6216\u60ac\u7a7a CNAME \u53ef\u80fd\u5bfc\u81f4\u6d41\u91cf\u88ab\u52ab\u6301\u3002<\/td>\n \u4f1a\u589e\u52a0\u67e5\u8be2\u65f6\u5ef6\uff0c\u5e76\u53ef\u80fd\u8ba9\u653b\u51fb\u8005\u6709\u673a\u53ef\u4e58\u3002<\/td>\n<\/tr>\n NS \u8bb0\u5f55\u95ee\u9898<\/td>\n \u540d\u79f0\u670d\u52a1\u5668\u65e0\u54cd\u5e94\u4f1a\u5bfc\u81f4\u57df\u540d\u65e0\u6cd5\u89e3\u6790\u3002<\/td>\n \u4f7f\u57df\u540d\u4e0d\u53ef\u89e3\u6790\uff0c\u7834\u574f\u4fe1\u4efb\u5173\u7cfb\u3002<\/td>\n<\/tr>\n TXT \u8bb0\u5f55\u9519\u8bef<\/td>\n \u9519\u8bef\u7684 SPF\u3001DKIM \u6216 DMARC \u8bb0\u5f55\u4f1a\u5bfc\u81f4\u90ae\u4ef6\u6295\u9012\u5931\u8d25\u3002<\/td>\n \u5408\u6cd5\u90ae\u4ef6\u53ef\u80fd\u88ab\u62d2\u6536\u6216\u6807\u8bb0\u4e3a\u5783\u573e\u90ae\u4ef6\u3002<\/td>\n<\/tr>\n PTR \u8bb0\u5f55\u95ee\u9898<\/td>\n \u9519\u8bef\u7684 PTR \u8bb0\u5f55\u4f1a\u5f71\u54cd\u90ae\u4ef6\u4fe1\u8a89\u3002<\/td>\n \u90ae\u4ef6\u5bb9\u6613\u88ab\u5224\u5b9a\u4e3a\u5783\u573e\u90ae\u4ef6\u3002<\/td>\n<\/tr>\n \u533a\u57df\u4f20\u9001\u6f0f\u6d1e<\/td>\n \u9519\u8bef\u914d\u7f6e\u7684 AXFR \u8bf7\u6c42\u4f1a\u5c06 DNS \u8bb0\u5f55\u66b4\u9732\u7ed9\u653b\u51fb\u8005\u3002<\/td>\n \u653b\u51fb\u8005\u53ef\u80fd\u83b7\u53d6\u4f60\u7684\u7f51\u7edc\u7ed3\u6784\u5b8c\u6574\u5730\u56fe\u3002<\/td>\n<\/tr>\n DNSSEC \u914d\u7f6e\u9519\u8bef<\/td>\n DNSSEC \u914d\u7f6e\u9519\u8bef\u4f1a\u5bfc\u81f4\u670d\u52a1\u4e2d\u65ad\u3002<\/td>\n \u5176\u4ed6\u670d\u52a1\u53ef\u80fd\u5c06\u4f60\u7684\u57df\u540d\u89c6\u4e3a\u4e0d\u5b58\u5728\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n \u4f60\u8fd8\u5e94\u6ce8\u610f\u8fc7\u9ad8\u7684 TTL \u503c\u3001\u5f00\u653e\u5f0f DNS \u89e3\u6790\uff08Open Resolver\uff09\u4ee5\u53ca\u9648\u65e7\u8bb0\u5f55\u3002\u8fd9\u4e9b\u95ee\u9898\u4f1a\u51cf\u7f13\u66f4\u65b0\u3001\u5e26\u6765\u5b89\u5168\u98ce\u9669\uff0c\u5e76\u5bfc\u81f4\u201cDNS \u670d\u52a1\u5668\u4e0d\u53ef\u7528\u201d\u7b49\u9519\u8bef\u3002<\/p>\n \u63d0\u793a\uff1a\u5b9a\u671f\u8fdb\u884c DNS \u5ba1\u8ba1\u5e76\u4fdd\u6301\u8bb0\u5f55\u66f4\u65b0\uff0c\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u5b95\u673a\u98ce\u9669\u3002<\/p><\/blockquote>\n \u786e\u8ba4 DNS \u670d\u52a1\u72b6\u6001\u4e0e 53 \u7aef\u53e3<\/h3>\n \u4f60\u5fc5\u987b\u786e\u8ba4 DNS \u670d\u52a1\u662f\u5426\u6b63\u5728\u8fd0\u884c\u5e76\u5728 53 \u7aef\u53e3\u4e0a\u76d1\u542c\u3002\u4f7f\u7528 netstat<\/code> \u547d\u4ee4\u67e5\u770b\u670d\u52a1\u5668\u662f\u5426\u5728\u8be5\u7aef\u53e3\u4e0a\u5904\u4e8e\u6d3b\u52a8\u72b6\u6001\u3002\u67e5\u627e\u7c7b\u4f3c\u201cUDP IPAddress:53 :<\/em>\u201d\u7684\u6761\u76ee\uff0c\u4ee5\u786e\u8ba4\u670d\u52a1\u6b63\u5728\u76d1\u542c\u3002\u4f60\u4e5f\u53ef\u4ee5\u7528 telnet<\/code> \u6d4b\u8bd5 53 \u7aef\u53e3\u8fde\u901a\u6027\uff0c\u4f46\u987b\u6ce8\u610f\u5b83\u53ea\u80fd\u9a8c\u8bc1 TCP\u3002<\/p>\n \u5982\u679c\u53d1\u73b0 DNS \u670d\u52a1\u5668\u4e0d\u53ef\u7528\uff0c\u8981\u68c0\u67e5 53 \u7aef\u53e3\u662f\u5426\u88ab\u963b\u6321\u3002\u5c4f\u853d\u8be5\u7aef\u53e3\u4f1a\u963b\u6b62 DNS \u67e5\u8be2\u5e76\u5bfc\u81f4\u8d85\u65f6\uff0c\u4ece\u800c\u5f15\u8d77\u5e94\u7528\u6545\u969c\u5e76\u4f7f DNS \u670d\u52a1\u5668\u5bf9\u7528\u6237\u4e0d\u53ef\u7528\u3002\u52a1\u5fc5\u786e\u4fdd\u9632\u706b\u5899\u5141\u8bb8 UDP \u548c TCP \u7684 53 \u7aef\u53e3\u6d41\u91cf\u3002<\/p>\n \n \u81f3\u5c11\u914d\u7f6e\u4e3b\u3001\u8f85\u4e24\u4e2a DNS \u670d\u52a1\u5668\u4ee5\u63d0\u9ad8\u5197\u4f59\u3002<\/li>\n \u8ba9\u57df\u63a7\u5236\u5668\u6307\u5411\u53ef\u9760\u7684\u5185\u90e8 DNS \u670d\u52a1\u5668\u3002<\/li>\n \u76d1\u63a7\u201cDNS \u670d\u52a1\u5668\u4e0d\u53ef\u7528\u201d\u9519\u8bef\uff0c\u5e76\u53ca\u65f6\u5904\u7406\u3002<\/li>\n<\/ul>\n \u6ce8\u610f\uff1a\u5b9a\u671f\u68c0\u67e5\u914d\u7f6e\uff0c\u9884\u9632\u201cDNS \u670d\u52a1\u5668\u4e0d\u53ef\u7528\u201d\u7b49\u95ee\u9898\uff0c\u4fdd\u6301\u7f51\u7edc\u5065\u5eb7\u8fd0\u884c\u3002<\/p><\/blockquote>\n \u6392\u67e5\u540d\u79f0\u89e3\u6790\u6545\u969c<\/strong><\/h2>\n \u4f7f\u7528\u7f51\u7edc\u6293\u5305\u5de5\u5177\u8fdb\u884c DNS \u5206\u6790<\/h3>\n \u901a\u8fc7\u4f7f\u7528\u7f51\u7edc\u6293\u5305\u5de5\u5177\u5206\u6790 DNS \u6d41\u91cf\uff0c\u4f60\u53ef\u4ee5\u89e3\u51b3\u5927\u91cf\u89e3\u6790\u95ee\u9898\u3002\u9996\u5148\u5728 UDP 53 \u7aef\u53e3\u4e0a\u6536\u96c6\u6570\u636e\u5305\uff0c\u8be5\u7aef\u53e3\u8d1f\u8d23\u5904\u7406 DNS \u67e5\u8be2\u548c\u54cd\u5e94\u3002\u8bf8\u5982 Wireshark \u548c tcpdump \u7b49\u5de5\u5177\uff0c\u53ef\u4ee5\u8ba9\u4f60\u67e5\u770b\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u53d1\u9001\u7684\u6bcf\u4e00\u4e2a\u6570\u636e\u5305\u3002Wireshark \u63d0\u4f9b\u534f\u8bae\u7ea7\u53ef\u89c1\u6027\uff0c\u5e2e\u52a9\u4f60\u53d1\u73b0\u5e94\u7528\u5c42\u95ee\u9898\u548c\u534f\u8bae\u9519\u8bef\uff0c\u5bf9\u5e0c\u671b\u6df1\u5165\u638c\u63e1 DNS \u8bf7\u6c42\u8bca\u65ad\u7684\u8fd0\u7ef4\u4eba\u5458\u975e\u5e38\u91cd\u8981\u3002<\/p>\n \u4f60\u8fd8\u5e94\u4f7f\u7528 nslookup\u3001dig \u548c DNSChecker \u7b49\u547d\u4ee4\u884c\u5de5\u5177\u3002\u8fd9\u4e9b\u5de5\u5177\u6709\u52a9\u4e8e\u8ddf\u8e2a\u5931\u8d25\u8bf7\u6c42\u3001\u7f13\u6162\u67e5\u8be2\u548c\u914d\u7f6e\u9519\u8bef\u3002\u5b83\u4eec\u53ef\u4ee5\u63ed\u793a\u4e3a\u4f55\u7f51\u7ad9\u65e0\u6cd5\u52a0\u8f7d\u3001\u90ae\u4ef6\u65e0\u6cd5\u53d1\u9001\u6216\u8fde\u63a5\u4e2d\u65ad\u3002\u5f53\u4f60\u6267\u884c\u6293\u5305\u65f6\uff0c\u8981\u5173\u6ce8\u67e5\u8be2\u54cd\u5e94\u7f13\u6162\u3001\u8bb0\u5f55\u7f3a\u5931\u6216\u53ef\u7591\u6076\u610f\u6d3b\u52a8\u7684\u8ff9\u8c61\u3002<\/p>\n \u63d0\u793a\uff1a\u5728\u6293\u5305\u524d\u52a1\u5fc5\u6e05\u7a7a DNS \u5ba2\u6237\u7aef\u7f13\u5b58\uff0c\u4ee5\u4fbf\u6355\u83b7\u6700\u65b0\u7684\u67e5\u8be2\u4e0e\u54cd\u5e94\u3002<\/p><\/blockquote>\n \u5728\u5206\u6790\u6570\u636e\u6d41\u65f6\uff0c\u91cd\u70b9\u5173\u6ce8\u4ee5\u4e0b\u5173\u952e\u6307\u6807\uff1a<\/p>\n \n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n \u6307\u6807<\/th>\n \u63cf\u8ff0<\/th>\n<\/tr>\n \u67e5\u8be2\u89e3\u6790\u65f6\u95f4<\/td>\n \u8861\u91cf DNS \u670d\u52a1\u5668\u5c06\u57df\u540d\u8f6c\u6362\u4e3a IP \u5730\u5740\u6240\u9700\u65f6\u95f4\u3002\u9ad8\u5ef6\u8fdf\u4f1a\u5f71\u54cd\u7528\u6237\u4f53\u9a8c\u3002<\/td>\n<\/tr>\n DNS \u8bb0\u5f55\u4f20\u64ad\u65f6\u95f4<\/td>\n \u53cd\u6620 DNS \u66f4\u65b0\u5728\u5404\u670d\u52a1\u5668\u4e4b\u95f4\u4f20\u64ad\u7684\u65f6\u957f\u3002\u4f20\u64ad\u7f13\u6162\u4f1a\u5bfc\u81f4\u4f7f\u7528\u8fc7\u671f\u89e3\u6790\u7ed3\u679c\u3002<\/td>\n<\/tr>\n NXDOMAIN\/SERVFAIL \u9519\u8bef\u7387<\/td>\n NXDOMAIN \u8868\u793a\u57df\u540d\u4e0d\u5b58\u5728\uff0cSERVFAIL \u8868\u793a\u5904\u7406\u5931\u8d25\u3002\u76d1\u63a7\u8fd9\u4e9b\u9519\u8bef\u6709\u52a9\u4e8e\u53d1\u73b0\u914d\u7f6e\u95ee\u9898\u6216\u653b\u51fb\u884c\u4e3a\u3002<\/td>\n<\/tr>\n SOA \u5e8f\u5217\u53f7\u53d8\u5316<\/td>\n \u8ddf\u8e2a DNS \u533a\u57df\u6587\u4ef6\u7684\u66f4\u65b0\u60c5\u51b5\u3002\u610f\u5916\u53d8\u66f4\u53ef\u80fd\u8868\u793a\u906d\u5230\u7be1\u6539\u3002<\/td>\n<\/tr>\n TTL\uff08\u5b58\u6d3b\u65f6\u95f4\uff09\u5230\u671f<\/td>\n \u8868\u793a DNS \u8bb0\u5f55\u5728\u7f13\u5b58\u4e2d\u4fdd\u7559\u7684\u65f6\u95f4\u3002\u76d1\u63a7 TTL \u6709\u52a9\u4e8e\u5728\u66f4\u65b0\u901f\u5ea6\u4e0e\u670d\u52a1\u5668\u8d1f\u8f7d\u4e4b\u95f4\u53d6\u5f97\u5e73\u8861\u3002<\/td>\n<\/tr>\n DNS \u8bf7\u6c42\u5f02\u5e38\u5cf0\u503c<\/td>\n \u8bf7\u6c42\u91cf\u7a81\u7136\u6fc0\u589e\u53ef\u80fd\u610f\u5473\u7740 DDoS \u653b\u51fb\u6216\u914d\u7f6e\u9519\u8bef\u3002\u53ca\u65e9\u53d1\u73b0\u6709\u52a9\u4e8e\u4fdd\u62a4\u7f51\u7edc\u3002<\/td>\n<\/tr>\n \u8bb0\u5f55\u53d8\u66f4\uff08A\u3001AAAA\u3001MX\u3001TXT\u3001NS\uff09<\/td>\n \u76d1\u63a7\u5173\u952e DNS \u8bb0\u5f55\u7684\u53d8\u52a8\uff0c\u53ef\u4ee5\u9632\u6b62\u672a\u6388\u6743\u4fee\u6539\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n \u4f60\u5e94\u5f53\u5728\u6545\u969c\u53d1\u751f\u65f6\u6536\u96c6\u8bca\u65ad\u6570\u636e\uff0c\u4fdd\u5b58\u6293\u5305\u6587\u4ef6\u548c\u9519\u8bef\u65e5\u5fd7\u3002\u8fd9\u4e9b\u4fe1\u606f\u6709\u52a9\u4e8e\u540e\u7eed\u6df1\u5165\u5206\u6790\uff0c\u5e76\u5728\u957f\u671f\u89c2\u5bdf\u4e2d\u53d1\u73b0\u6a21\u5f0f\u3002<\/p>\n \u5904\u7406\u5ef6\u8fdf\u3001\u62d2\u7edd\u67e5\u8be2\u548c\u8bb0\u5f55\u7f3a\u5931<\/h3>\n \u8981\u6062\u590d\u6b63\u5e38\u670d\u52a1\uff0c\u4f60\u5fc5\u987b\u89e3\u51b3\u89e3\u6790\u7f13\u6162\u3001\u67e5\u8be2\u88ab\u62d2\u4ee5\u53ca\u8bb0\u5f55\u7f3a\u5931\u7b49\u6839\u672c\u95ee\u9898\u3002\u9996\u5148\u68c0\u67e5\u662f\u5426\u4e3a\u76ee\u6807\u57df\u914d\u7f6e\u4e86\u6761\u4ef6\u8f6c\u53d1\u5668\u3002\u5982\u679c\u6ca1\u6709\uff0c\u67e5\u770b\u662f\u5426\u5b58\u5728\u901a\u7528\u8f6c\u53d1\u5668\u3002\u5982\u679c\u8f6c\u53d1\u5668\u4e5f\u4e0d\u5b58\u5728\uff0c\u5c31\u9700\u8981\u6838\u67e5\u6839\u63d0\u793a\u3002\u786e\u4fdd\u5728\u8f6c\u53d1\u670d\u52a1\u5668\u548c\u88ab\u8f6c\u53d1\u670d\u52a1\u5668\u4e0a\uff0cDNS Server \u670d\u52a1\u90fd\u5728\u8fd0\u884c\u3002\u540c\u65f6\u786e\u8ba4\u6240\u6709 DNS \u670d\u52a1\u5668\u4e4b\u95f4\u7684 UDP 53 \u7aef\u53e3\u901a\u4fe1\u662f\u7545\u901a\u7684\u3002<\/p>\n \u53ef\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u89e3\u51b3\u540d\u79f0\u89e3\u6790\u6545\u969c\uff1a<\/p>\n \n \u68c0\u67e5\u53d7\u5f71\u54cd\u57df\u540d\u662f\u5426\u914d\u7f6e\u4e86\u6761\u4ef6\u8f6c\u53d1\u5668\u3002<\/li>\n \u5982\u679c\u6ca1\u6709\uff0c\u6838\u5bf9\u670d\u52a1\u5668\u4e0a\u7684\u901a\u7528\u8f6c\u53d1\u5668\u3002<\/li>\n \u82e5\u4ecd\u672a\u89e3\u51b3\uff0c\u68c0\u67e5 DNS \u670d\u52a1\u5668\u4e0a\u7684\u6839\u63d0\u793a\u914d\u7f6e\u3002<\/li>\n \u786e\u4fdd\u6240\u6709\u76f8\u5173\u670d\u52a1\u5668\u4e0a\u7684 DNS Server \u670d\u52a1\u5904\u4e8e\u8fd0\u884c\u72b6\u6001\u3002<\/li>\n \u786e\u8ba4\u6240\u6709 DNS \u670d\u52a1\u5668\u4e4b\u95f4\u7684 UDP 53 \u7aef\u53e3\u5f00\u653e\u3002<\/li>\n \u6e05\u7a7a DNS \u5ba2\u6237\u7aef\u7f13\u5b58\u5e76\u6293\u5305\uff0c\u4ee5\u8ddf\u8e2a DNS \u6570\u636e\u5305\u6d41\u5411\u3002<\/li>\n<\/ol>\n \u4f60\u5e94\u8be5\u76d1\u63a7\u54cd\u5e94\u7801\uff0c\u4ee5\u4e86\u89e3\u6240\u9047\u5230\u7684\u6545\u969c\u7c7b\u578b\u3002\u4e0b\u8868\u5c55\u793a\u4e86\u5e38\u89c1 DNS \u54cd\u5e94\u7801\u53ca\u51fa\u73b0\u9891\u7387\uff1a<\/p>\n \n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n \u54cd\u5e94\u7801<\/th>\n \u6b21\u6570<\/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\u8fc7\u9ad8\u901a\u5e38\u8868\u793a\u8bb0\u5f55\u7f3a\u5931\u6216\u914d\u7f6e\u62fc\u5199\u9519\u8bef\u3002SERVFAIL \u9519\u8bef\u5f80\u5f80\u610f\u5473\u7740\u670d\u52a1\u5668\u5904\u7406\u95ee\u9898\u6216\u914d\u7f6e\u9519\u8bef\u3002REFUSED \u5219\u8868\u793a\u670d\u52a1\u5668\u62d2\u7edd\u4e86\u67e5\u8be2\u8bf7\u6c42\uff0c\u53ef\u80fd\u662f\u56e0\u4e3a\u8bbf\u95ee\u63a7\u5236\u7b56\u7565\u963b\u6b62\u4e86\u8be5\u8bf7\u6c42\u3002<\/p>\n \u4f60\u8fd8\u5e94\u5173\u6ce8\u5ef6\u8fdf\u95ee\u9898\u3002\u8fc7\u9ad8\u7684\u67e5\u8be2\u89e3\u6790\u65f6\u95f4\u4f1a\u62d6\u6162\u7f51\u7ad9\u548c\u5e94\u7528\u3002\u4f7f\u7528\u7f51\u7edc\u6293\u5305\u5de5\u5177\u6d4b\u91cf\u6bcf\u4e2a\u67e5\u8be2\u7684\u8017\u65f6\u3002\u5982\u679c\u53d1\u73b0\u5ef6\u8fdf\u660e\u663e\u589e\u52a0\uff0c\u8981\u68c0\u67e5\u670d\u52a1\u5668\u8d1f\u8f7d\u3001\u7f51\u7edc\u62e5\u585e\u6216 DNS \u8bb0\u5f55\u4f20\u64ad\u8fc7\u6162\u7b49\u95ee\u9898\u3002<\/p>\n \u6ce8\u610f\uff1a\u59cb\u7ec8\u8bb0\u5f55\u4f60\u7684\u6392\u67e5\u6b65\u9aa4\u548c\u7ed3\u8bba\uff0c\u8fd9\u6709\u52a9\u4e8e\u5efa\u7acb\u77e5\u8bc6\u5e93\uff0c\u5728\u672a\u6765\u66f4\u5feb\u901f\u5730\u5b8c\u6210\u95ee\u9898\u5b9a\u4f4d\u4e0e\u4fee\u590d\u3002<\/p><\/blockquote>\n \n <\/div>\n<\/div>\n \u4f60\u53ef\u4ee5\u901a\u8fc7\u6e05\u6670\u7684\u6392\u67e5\u6d41\u7a0b\u6765\u89e3\u51b3\u5916\u90e8 DNS \u914d\u7f6e\u6545\u969c\u3002\u8d77\u6b65\u65f6\u53ef\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u8fdb\u884c\uff1a<\/p>\n \n \u68c0\u67e5\u662f\u5426\u4e3a\u76ee\u6807\u57df\u914d\u7f6e\u4e86\u6761\u4ef6\u8f6c\u53d1\u5668\u3002<\/li>\n \u5982\u679c\u6ca1\u6709\uff0c\u5728\u670d\u52a1\u5668\u4e0a\u67e5\u627e\u901a\u7528\u8f6c\u53d1\u5668\u3002<\/li>\n \u82e5\u4e0d\u5b58\u5728\u4efb\u4f55\u8f6c\u53d1\u5668\uff0c\u68c0\u67e5 DNS \u670d\u52a1\u5668\u4e0a\u7684\u6839\u63d0\u793a\u914d\u7f6e\u3002<\/li>\n \u786e\u8ba4 DNS \u670d\u52a1\u72b6\u6001\u548c\u7f51\u7edc\u8fde\u901a\u6027\u662f\u5426\u6b63\u5e38\u3002<\/li>\n \u6293\u53d6\u7f51\u7edc\u6570\u636e\u5305\uff0c\u4ee5\u8ddf\u8e2a\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u7684 DNS \u901a\u4fe1\u3002<\/li>\n<\/ol>\n \u4e3a\u907f\u514d\u540e\u7eed\u95ee\u9898\uff0c\u4f60\u5e94\u76d1\u63a7\u5173\u952e\u57df\u540d\u548c\u8bb0\u5f55\u7c7b\u578b\uff08\u5982 A\u3001MX\u3001CNAME\u3001NS\u3001TXT\uff09\u3002\u8bbe\u7f6e\u544a\u8b66\u9608\u503c\u5e76\u4f7f\u7528\u53ef\u89c6\u5316\u4eea\u8868\u76d8\u89c2\u5bdf\u8d8b\u52bf\uff0c\u5c06\u544a\u8b66\u6574\u5408\u5230\u901a\u77e5\u7cfb\u7edf\uff0c\u4fbf\u4e8e\u5feb\u901f\u54cd\u5e94\u3002\u540c\u65f6\u5728\u4e0d\u540c\u5730\u533a\u90e8\u7f72\u63a2\u6d4b\u70b9\uff0c\u8986\u76d6\u670d\u52a1\u5668\u6240\u652f\u6301\u7684\u5168\u90e8\u533a\u57df\u3002<\/p>\n \u4f60\u8fd8\u5e94\u5b9a\u671f\u68c0\u67e5 DNS \u65e5\u5fd7\uff0c\u5173\u6ce8\u5f02\u5e38\u884c\u4e3a\u5e76\u8fdb\u884c\u5ba1\u8ba1\u3002\u8fd9\u6709\u52a9\u4e8e\u4fdd\u969c\u670d\u52a1\u5668\u5b89\u5168\uff0c\u5e76\u4fdd\u6301 DNS \u8bbe\u7f6e\u7684\u51c6\u786e\u6027\u3002<\/p>\n \u5e38\u89c1\u95ee\u7b54\uff08FAQ\uff09<\/strong><\/h2>\n \u4ec0\u4e48\u662f DNS \u8f6c\u53d1\u5668\uff1f<\/h3>\n DNS \u8f6c\u53d1\u5668\u4f1a\u5c06\u4f60\u7684\u670d\u52a1\u5668\u6536\u5230\u7684 DNS \u67e5\u8be2\u8f6c\u53d1\u5230\u5916\u90e8 DNS \u670d\u52a1\u5668\u3002\u4f60\u5728\u89e3\u6790\u5916\u90e8\u57df\u540d\u65f6\u4f1a\u7528\u5230\u8f6c\u53d1\u5668\uff0c\u5176\u597d\u5904\u662f\u63d0\u5347\u89e3\u6790\u901f\u5ea6\u5e76\u589e\u5f3a\u5b89\u5168\u6027\u3002<\/p>\n \u5982\u4f55\u5224\u65ad DNS \u7684 53 \u7aef\u53e3\u662f\u5426\u88ab\u963b\u6321\uff1f<\/h3>\n \u4f60\u53ef\u4ee5\u4f7f\u7528 netstat -an | find \"53\"<\/code> \u547d\u4ee4\uff0c\u68c0\u67e5\u670d\u52a1\u5668\u662f\u5426\u5728 53 \u7aef\u53e3\u4e0a\u76d1\u542c\u3002\u5982\u679c\u6ca1\u6709\u4efb\u4f55\u7ed3\u679c\uff0c\u53ef\u80fd\u662f\u9632\u706b\u5899\u963b\u6321\u4e86\u8be5\u7aef\u53e3\u3002<\/p>\n \u4e3a\u4ec0\u4e48\u9700\u8981\u6e05\u7a7a DNS \u7f13\u5b58\uff1f<\/h3>\n \u6e05\u7a7a DNS \u7f13\u5b58\u53ef\u4ee5\u79fb\u9664\u8fc7\u671f\u6216\u9519\u8bef\u8bb0\u5f55\uff0c\u5e2e\u52a9\u4f60\u83b7\u53d6\u6700\u65b0\u5730\u5740\u5e76\u5feb\u901f\u4fee\u590d\u540d\u79f0\u89e3\u6790\u9519\u8bef\u3002<\/p>\n \u6709\u54ea\u4e9b\u5de5\u5177\u53ef\u4ee5\u5e2e\u52a9\u5206\u6790 DNS \u6d41\u91cf\uff1f<\/h3>\n \u4f60\u53ef\u4ee5\u4f7f\u7528 Wireshark\u3001tcpdump \u6216 nslookup\u3002\u8fd9\u4e9b\u5de5\u5177\u80fd\u5e2e\u52a9\u4f60\u6293\u5305\u3001\u6d4b\u8bd5\u67e5\u8be2\u5e76\u627e\u51fa DNS \u6545\u969c\u53d1\u751f\u7684\u4f4d\u7f6e\u3002<\/p>\n \u5982\u4f55\u9884\u9632\u4eca\u540e\u7684 DNS \u6545\u969c\uff1f<\/h3>\n \u5b9a\u671f\u5ba1\u67e5 DNS \u65e5\u5fd7\u5e76\u66f4\u65b0\u8bb0\u5f55\uff0c\u4e3a\u5f02\u5e38\u884c\u4e3a\u8bbe\u7f6e\u544a\u8b66\u3002\u4ece\u591a\u4e2a\u5730\u70b9\u6d4b\u8bd5 DNS \u89e3\u6790\uff0c\u4ee5\u4fbf\u5c3d\u65e9\u53d1\u73b0\u95ee\u9898\u3002<\/p>\n","protected":false},"excerpt":{"rendered":" \u4f60\u53ef\u4ee5\u901a\u8fc7\u805a\u7126\u6700\u5e38\u89c1\u7684\u539f\u56e0\u6765\u89e3\u51b3\u5916\u90e8 DNS 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More…<\/a><\/p>\n","protected":false},"author":2,"featured_media":32340,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4816],"tags":[11555,3572,2696,2071,753],"class_list":["post-32344","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-america-dedicated-server-sc","tag-external-dns","tag-dns-configuration-sc","tag-dns-troubleshooting-sc","tag-dns-server-sc","tag--sc"],"acf":[],"yoast_head":"\n