\u5c0d\u65bc\u670d\u52d9\u570b\u969b\u4f7f\u7528\u8005\u7684\u7f8e\u570b\u4f3a\u670d\u5668\uff0c\u4ee5\u4e0b\u5169\u5927\u56e0\u7d20\u6613\u5f15\u767c\u903e\u6642\uff1a<\/p>\n

\n
• \u7db2\u57df\u540d\u7a31\u6388\u6b0a\u5ef6\u9072\uff1a\u82e5\u4f60\u8fd1\u671f\u70ba\u975e\u7f8e\u570b\u8a3b\u518a\u7684\u7db2\u57df\u540d\u7a31\u66f4\u65b0\u4e86\u7db2\u57df\u540d\u7a31\u4f3a\u670d\u5668\uff0c\u5176\u5728\u5317\u7f8e\u5730\u5340\u89e3\u6790\u5668\u7684\u751f\u6548\u6642\u9593\u53ef\u80fd\u9577\u905424-48\u5c0f\u6642\uff08\u9577\u65bc\u672c\u571f\u89e3\u6790\u50b3\u64ad\u6642\u9593\uff09\u3002<\/li>\n
• \u8de8\u5927\u897f\u6d0b\/\u592a\u5e73\u6d0b\u93c8\u8def\u58c5\u585e\uff1a\u9023\u63a5\u7f8e\u570b\u8207\u4e9e\u6b50\u5730\u5340\u7684\u7db2\u969b\u7db2\u8def\u4ea4\u63db\u4e2d\u5fc3\uff08IXP\uff09\u5728\u9ad8\u5cf0\u6642\u6bb5\u53ef\u80fd\u51fa\u73fe\u5c01\u5305\u907a\u5931\uff0c\u5e72\u64feDNS\u67e5\u8a62\u50b3\u8f38\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

  6\u500b\u6280\u8853\u5316\u6b65\u9a5f\uff1a\u4fee\u5fa9\u7f8e\u570b\u4f3a\u670d\u5668DNS\u903e\u6642\u554f\u984c<\/strong><\/h2>\n

  \u4ee5\u4e0b\u6b65\u9a5f\u6ce8\u91cd\u6280\u8853\u7cbe\u78ba\u6027\u2014\u2014\u6bcf\u500b\u6b65\u9a5f\u5747\u5305\u542b\u57f7\u884c\u6307\u4ee4\u548c\u9a57\u8b49\u65b9\u6cd5\uff0c\u78ba\u4fdd\u4fee\u5fa9\u6548\u679c\u3002\u53ef\u6839\u64da\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\uff08\u5171\u4eab\u3001\u865b\u64ec\u5c08\u7528\u4f3a\u670d\u5668\u3001\u5c08\u7528\u4f3a\u670d\u5668\uff09\u6216\u4ee3\u7ba1\u74b0\u5883\u9748\u6d3b\u9002\u914d\uff1a<\/p>\n

  \n
  1. \n \u4f7f\u7528\u5e95\u5c64\u5de5\u5177\u9a57\u8b49DNS\u89e3\u6790<\/strong><\/p>\n

     \u7121\u9700\u4f9d\u8cf4\u700f\u89bd\u5668\u5075\u6e2c\uff0c\u76f4\u63a5\u4f7f\u7528nslookup<\/code>\u6216dig<\/code>\u5de5\u5177\u6e2c\u8a66\u7db2\u57df\u540d\u7a31\u662f\u5426\u89e3\u6790\u81f3\u6b63\u78ba\u7684\u7f8e\u570b\u4f3a\u670d\u5668IP\u3002\u5206\u5225\u5728\u7f8e\u570b\u672c\u571f\u6a5f\u5668\uff08\u6a21\u64ec\u672c\u5730\u6d41\u91cf\uff09\u548c\u570b\u969b\u6a5f\u5668\uff08\u6e2c\u8a66\u8de8\u5883\u6548\u80fd\uff09\u4e0a\u57f7\u884c\u4ee5\u4e0b\u6307\u4ee4\uff1a<\/p>\n

     \n
     • Linux\/macOS\uff1adig yourdomain.com @8.8.8.8<\/code>\uff08\u4f7f\u7528\u516c\u958b\u89e3\u6790\u5668\u8df3\u904e\u672c\u5730\u5feb\u53d6\uff09\u2014\u2014\u5728\u300cANSWER SECTION\u300d\u4e2d\u78ba\u8a8d\u662f\u5426\u986f\u793a\u7f8e\u570b\u4f3a\u670d\u5668IP\u3002<\/li>\n
     • Windows\uff1anslookup yourdomain.com 8.8.8.8<\/code>\u2014\u2014\u9a57\u8b49\u300c\u975e\u6b0a\u5a01\u56de\u61c9\u300d\u4e2d\u7684IP\u662f\u5426\u8207\u4f3a\u670d\u5668IP\u4e00\u81f4\u3002<\/li>\n<\/ul>\n

       \u82e5IP\u4f4d\u5740\u4e0d\u6b63\u78ba\uff0c\u8aaa\u660e\u554f\u984c\u51fa\u5728\u7d00\u9304\u8a2d\u5b9a\u800c\u975e\u903e\u6642\u2014\u2014\u9700\u512a\u5148\u66f4\u65b0A\/AAAA\u7d00\u9304\u3002\n <\/p>\n<\/li>\n

     • \n \u66f4\u63db\u9002\u914d\u5317\u7f8e\u7684DNS\u670d\u52d9\u5546<\/strong><\/p>\n

       \u9078\u64c7\u5728\u7f8e\u570b\u64c1\u6709\u5099\u63f4PoP\u7bc0\u9ede\u7684DNS\u670d\u52d9\u5546\uff0c\u4ee5\u6700\u5927\u9650\u5ea6\u964d\u4f4e\u5ef6\u9072\u3002\u5c07\u7db2\u57df\u540d\u7a31\u7684\u7db2\u57df\u540d\u7a31\u4f3a\u670d\u5668\u8a2d\u5b9a\u70ba\u65b0\u670d\u52d9\u5546\u4f4d\u5740\uff0c\u96a8\u5f8c\u900f\u904edig +trace yourdomain.com<\/code>\u9a57\u8b49\u89e3\u6790\u50b3\u64ad\u2014\u2014\u8a72\u6307\u4ee4\u53ef\u986f\u793aDNS\u67e5\u8a62\u8def\u5f91\uff0c\u78ba\u8a8d\u8acb\u6c42\u662f\u5426\u900f\u904e\u7f8e\u570b\u7bc0\u9ede\u8def\u7531\u3002\u907f\u514d\u4f7f\u7528\u7121\u7f8e\u570b\u7bc0\u9ede\u7684\u670d\u52d9\u5546\uff0c\u6b64\u985e\u670d\u52d9\u6703\u589e\u52a0100-300\u6beb\u79d2\u5ef6\u9072\uff08\u8db3\u4ee5\u89f8\u767c\u903e\u6642\uff09\u3002<\/p>\n<\/li>\n

     • \n \u5237\u65b0\u4f3a\u670d\u5668\u7aefDNS\u5feb\u53d6<\/strong><\/p>\n

       \u7f8e\u570b\u4f3a\u670d\u5668\u4e0a\u7684\u904e\u671f\u5feb\u53d6\u53ef\u80fd\u5c0e\u81f4\u5176\u5ffd\u7565\u65b0\u7d00\u9304\u3002\u900f\u904e\u4ee5\u4e0b\u74b0\u5883\u5c08\u5c6c\u6307\u4ee4\u6e05\u9664\u5feb\u53d6\uff1a<\/p>\n

       \n
       • Linux\uff08nscd\uff09\uff1asudo systemctl restart nscd<\/code>\u2014\u2014\u900f\u904esudo nscd -g<\/code>\u9a57\u8b49\uff08\u5728DNS\u90e8\u5206\u67e5\u770b\u300ccache is empty\u300d\u6a19\u8b58\uff09\u3002<\/li>\n
       • Linux\uff08systemd-resolved\uff09\uff1asudo systemctl restart systemd-resolved<\/code>\u2014\u2014\u900f\u904esudo resolvectl status<\/code>\u67e5\u770b\u72c0\u614b\u3002<\/li>\n
       • Windows Server\uff1aipconfig \/flushdns<\/code>\u2014\u2014\u900f\u904eipconfig \/displaydns<\/code>\u78ba\u8a8d\uff08\u82e5\u986f\u793a\u300c\u672a\u8a2d\u5b9aDNS\u4f3a\u670d\u5668\u300d\u5247\u8868\u793a\u5feb\u53d6\u5df2\u6e05\u9664\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n
       • \n \u4f7f\u7528Traceroute\/MTR\u6e2c\u8a66\u7bc0\u9ede\u9023\u901a\u6027<\/strong><\/p>\n

         \u903e\u6642\u554f\u984c\u5e38\u6e90\u65bc\u7f8e\u570b\u4f3a\u670d\u5668\u8207\u89e3\u6790\u5668\u4e4b\u9593\u7684\u8def\u5f91\u4e2d\u65b7\u3002\u4f7f\u7528traceroute<\/code>\uff08Linux\/macOS\uff09\u6216tracert<\/code>\uff08Windows\uff09\u7e6a\u88fd\u8def\u7531\u8def\u5f91\uff1a<\/p>\n

         \n
         • Linux\/macOS\uff1amtr --report your-dns-provider-ip<\/code>\uff08MTR\u7d50\u5408\u4e86ping\u548ctraceroute\u529f\u80fd\uff0c\u53ef\u53d6\u5f97\u5c01\u5305\u907a\u5931\u6578\u64da\uff09\u2014\u2014\u95dc\u6ce8\u9023\u63a5\u7f8e\u570b\u672c\u571f\u89e3\u6790\u5668\u7684\u8def\u7531\u4e2d\u662f\u5426\u5b58\u572810%\u4ee5\u4e0a\u7684\u4e1f\u5305\u7387\u3002<\/li>\n
         • Windows\uff1atracert your-dns-provider-ip<\/code>\u2014\u2014\u6aa2\u67e5\u7f8e\u570b\u5883\u5167\u8def\u7531\u7bc0\u9ede\u662f\u5426\u51fa\u73fe\u300c\u8981\u6c42\u903e\u6642\u300d\u3002<\/li>\n<\/ul>\n

           \u82e5\u5b58\u5728\u4e1f\u5305\u60c5\u6cc1\uff0c\u806f\u7d61\u670d\u52d9\u5546\u5207\u63db\u81f3\u5176\u4ed6\u7f8e\u570b\u672c\u571f\u89e3\u6790\u5668IP\u3002\n <\/p>\n<\/li>\n

         • \n \u91dd\u5c0d\u7f8e\u570b\u6d41\u91cf\u6700\u4f73\u5316TTL\u503c<\/strong><\/p>\n

           TTL\uff08\u751f\u5b58\u6642\u9593\uff09\u6c7a\u5b9a\u4e86\u89e3\u6790\u5668\u5feb\u53d6DNS\u7d00\u9304\u7684\u6642\u9577\u3002\u5c0d\u65bc\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u5834\u666f\uff0c\u5728\u9032\u884c\u6d3b\u8e8d\u8b8a\u66f4\u6642\uff08\u4f8b\u5982\u4fee\u5fa9\u903e\u6642\u554f\u984c\u5f8c\uff09\uff0c\u5c07TTL\u8a2d\u5b9a\u70ba300\u79d2\uff085\u5206\u9418\uff09\u4ee5\u52a0\u901f\u89e3\u6790\u50b3\u64ad\uff1b\u670d\u52d9\u7a69\u5b9a\u5f8c\uff0c\u53ef\u8abf\u6574\u81f33600\u79d2\uff081\u5c0f\u6642\uff09\u4ee5\u964d\u4f4e\u89e3\u6790\u5668\u8ca0\u8f09\u3002\u907f\u514d\u5c07TTL\u8a2d\u5b9a\u4f4e\u65bc300\u79d2\u2014\u2014\u9019\u53ef\u80fd\u89f8\u767c\u90e8\u5206\u7f8e\u570b\u672c\u571f\u89e3\u6790\u5668\u7684\u901f\u7387\u9650\u5236\u3002\u5728\u670d\u52d9\u5546\u4e3b\u63a7\u53f0\u7684\u300c\u7d00\u9304\u8a2d\u5b9a\u300d\u4e2d\u66f4\u65b0TTL\u503c\u3002<\/p>\n<\/li>\n

         • \n \u5c07\u7f8e\u570b\u4f3a\u670d\u5668\u7d81\u5b9a\u975c\u614bIP\u4e26\u9a57\u8b49\u9632\u706b\u7246\u898f\u5247<\/strong><\/p>\n

           \u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u82e5\u4f7f\u7528\u52d5\u614bIP\uff0cIP\u8b8a\u66f4\u5f8c\u6703\u5c0e\u81f4\u7d00\u9304\u5931\u6548\u3002\u900f\u904e\u670d\u52d9\u5546\u7ba1\u7406\u4ecb\u9762\u78ba\u8a8d\u4f3a\u670d\u5668\u5df2\u8a2d\u5b9a\u975c\u614bIP\u3002\u96a8\u5f8c\u9a57\u8b49\u9632\u706b\u7246\u898f\u5247\u662f\u5426\u5141\u8a31DNS\u6d41\u91cf\uff1a<\/p>\n

           \n
           • Linux\uff08ufw\uff09\uff1asudo ufw allow out 53\/udp<\/code> \u548c sudo ufw allow in 53\/udp<\/code>\u2014\u2014\u900f\u904esudo ufw status<\/code>\u67e5\u770b\u8a2d\u5b9a\u3002<\/li>\n
           • Linux\uff08iptables\uff09\uff1asudo iptables -A OUTPUT -p udp --dport 53 -j ACCEPT<\/code>\u2014\u2014\u900f\u904esudo iptables-save<\/code>\u5132\u5b58\u8a2d\u5b9a\u3002<\/li>\n
           • Windows\uff1a\u958b\u555f\u300cWindows Defender\u9632\u706b\u7246\u300d\u2192\u300c\u9032\u968e\u8a2d\u5b9a\u300d\u2192\u5728\u5165\u7ad9\u548c\u51fa\u7ad9\u898f\u5247\u4e2d\u5747\u5141\u8a31UDP\u9023\u63a5\u57e053\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

             \u4e3b\u52d5\u9632\u79a6\uff1a\u9577\u671f\u907f\u514d\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528DNS\u903e\u6642<\/strong><\/h2>\n

             \u6280\u8853\u5718\u968a\u7121\u9700\u7b49\u5230\u903e\u6642\u554f\u984c\u767c\u751f\u624d\u63a1\u53d6\u884c\u52d5\u2014\u2014\u5be6\u65bd\u4ee5\u4e0b\u4e3b\u52d5\u63aa\u65bd\uff0c\u53ef\u78ba\u4fdd\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\/\u4ee3\u7ba1\u7684DNS\u670d\u52d9\u6301\u7e8c\u7a69\u5b9a\uff1a<\/p>\n

             \n
             • \n \u6bcf\u9031\u57f7\u884cDNS\u7a3d\u6838<\/strong><\/p>\n

               \u900f\u904eLinux\u7684\u6392\u7a0b\u5de5\u4f5c\uff08cron jobs\uff09\u6216Windows\u7684\u5de5\u4f5c\u6392\u7a0b\u5668\uff0c\u81ea\u52d5\u57f7\u884cdig<\/code>\/nslookup<\/code>\u6307\u4ee4\u5075\u6e2c\u7db2\u57df\u540d\u7a31\u72c0\u614b\u3002\u4f8b\u5982\uff0c\u5728Linux\u4e2d\u8a2d\u5b9a\u6392\u7a0b\u5de5\u4f5c\uff0c\u6bcf\u5929\u51cc\u66682\u9ede\uff08\u7f8e\u570b\u6642\u9593\uff09\u57f7\u884cdig yourdomain.com >> \/var\/log\/dns-check.log<\/code>\u3002\u6bcf\u9031\u67e5\u770b\u65e5\u8a8c\uff0c\u5728\u89e3\u6790\u5ef6\u9072\u6f14\u8b8a\u70ba\u903e\u6642\u524d\u767c\u73fe\u65e9\u671f\u8de1\u8c61\u3002<\/p>\n<\/li>\n

             • \n \u8a2d\u5b9a\u591a\u89e3\u6790\u5668\u5099\u4efd<\/strong><\/p>\n

               \u4e0d\u8981\u4f9d\u8cf4\u55ae\u4e00\u89e3\u6790\u5668\u70ba\u7f8e\u570b\u4f3a\u670d\u5668\u63d0\u4f9b\u670d\u52d9\u3002\u5728\u4f3a\u670d\u5668\u7db2\u8def\u8a2d\u5b9a\u4e2d\u8a2d\u5b9a2-3\u500b\u5099\u63f4\u89e3\u6790\u5668\uff08\u5747\u9700\u5177\u5099\u7f8e\u570bPoP\u7bc0\u9ede\uff09\u3002\u5c0d\u65bcLinux\u7cfb\u7d71\uff0c\u7de8\u8f2f\/etc\/resolv.conf<\/code>\u6a94\u6848\uff0c\u65b0\u589e\u591a\u689dnameserver<\/code>\u8a2d\u5b9a\uff1b\u5c0d\u65bcWindows\u7cfb\u7d71\uff0c\u900f\u904e\u300c\u7db2\u8def\u548c\u5171\u7528\u4e2d\u5fc3\u300d\u2192\u300cTCP\/IP\u5167\u5bb9\u300d\u65b0\u589e\u5099\u7528\u89e3\u6790\u5668\u3002\u6b64\u8209\u53ef\u907f\u514d\u55ae\u4e00\u89e3\u6790\u5668\u6545\u969c\u5c0e\u81f4\u7684\u670d\u52d9\u4e2d\u65b7\u3002<\/p>\n<\/li>\n

             • \n \u6839\u64da\u7f8e\u570b\u4f3a\u670d\u5668\u4f7f\u7528\u5834\u666f\u9078\u64c7DNS\u985e\u578b<\/strong><\/p>\n

               \u4f9d\u64da\u7f8e\u570b\u4f3a\u670d\u5668\u7684\u670d\u52d9\u5c0d\u8c61\u9078\u64c7\u89e3\u6790\u7b56\u7565\uff1a<\/p>\n

               \n
               • \u50c5\u670d\u52d9\u5317\u7f8e\u4f7f\u7528\u8005\uff1a\u555f\u7528\u300c\u5340\u57dfDNS\u8def\u7531\u300d\uff08\u82e5\u670d\u52d9\u5546\u652f\u63f4\uff09\uff0c\u5f37\u5236\u67e5\u8a62\u8acb\u6c42\u900f\u904e\u7f8e\u570b\u672c\u571f\u7bc0\u9ede\u89e3\u6790\u3002<\/li>\n
               • \u670d\u52d9\u5168\u7403\u4f7f\u7528\u8005\uff1a\u4f7f\u7528\u300c\u4efb\u64adDNS\u300d\u6280\u8853\uff0c\u5c07\u67e5\u8a62\u8acb\u6c42\u8def\u7531\u81f3\u6700\u8fd1\u7684\u7f8e\u570bPoP\u7bc0\u9ede\uff08\u964d\u4f4e\u8de8\u5883\u6d41\u91cf\u5ef6\u9072\uff09\u3002<\/li>\n
               • \u4ee3\u7ba1\u4f3a\u670d\u5668\uff1a\u5728\u4ee3\u7ba1\u7db2\u8def\u4e2d\u90e8\u7f72\u672c\u6a5fDNS\u4f3a\u670d\u5668\uff08\u5982BIND\u3001Unbound\uff09\uff0c\u5b8c\u5168\u8df3\u904e\u5916\u90e8\u89e3\u6790\u5668\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                 \u5e38\u898b\u554f\u984c\uff1a\u6280\u8853\u5718\u968a\u95dc\u65bc\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528DNS\u903e\u6642\u7684\u6838\u5fc3\u7591\u554f<\/strong><\/h2>\n

                 \n
                 • \n \u7f8e\u570b\u4f3a\u670d\u5668\u61c9\u9078\u64c7\u672c\u571fDNS\u670d\u52d9\u5546\u9084\u662f\u570b\u969b\u670d\u52d9\u5546\uff1f<\/strong><\/p>\n

                   \u512a\u5148\u9078\u64c7\u7f8e\u570b\u672c\u571f\u670d\u52d9\u5546\u6216\u5728\u7f8e\u570b\u64c1\u6709\u5b8c\u5584PoP\u7bc0\u9ede\u7684\u670d\u52d9\u5546\u3002\u570b\u969b\u670d\u52d9\u5546\u53ef\u80fd\u589e\u52a0\u4e0d\u5fc5\u8981\u7684\u5ef6\u9072\u2014\u2014\u5373\u4f7f\u50c5100\u6beb\u79d2\u7684\u5ef6\u9072\uff0c\u4e5f\u53ef\u80fd\u5c0e\u81f4\u67e5\u8a62\u8acb\u6c42\u8d85\u904e\u903e\u6642\u95be\u503c\u3002\u900f\u904eping<\/code>\u6307\u4ee4\u6e2c\u8a66\u670d\u52d9\u5546\u5ef6\u9072\uff1a\u7f8e\u570b\u672c\u571f\u6e2c\u8a66\u9ede\u7684\u5ef6\u9072\u61c9\u63a7\u5236\u572850\u6beb\u79d2\u4ee5\u5167\u3002<\/p>\n<\/li>\n

                 • \n DNS\u903e\u6642\u6703\u5f71\u97ff\u7f8e\u570b\u4f3a\u670d\u5668\u7684SEO\u8868\u73fe\u55ce\uff1f<\/strong><\/p>\n

                   \u6703\u3002Google\u6a5f\u5668\u4eba\u7b49\u641c\u5c0b\u5f15\u64ce\u722c\u87f2\u9700\u900f\u904eDNS\u5b58\u53d6\u4f3a\u670d\u5668\u2014\u2014\u983b\u7e41\u903e\u6642\u6703\u5c0e\u81f4\u722c\u87f2\u7121\u6cd5\u7d22\u5f15\u65b0\u5167\u5bb9\uff0c\u9032\u800c\u9020\u6210\u6392\u540d\u4e0b\u964d\u3002\u53ef\u900f\u904eGoogle\u641c\u5c0b\u4e3b\u63a7\u53f0\u7684\u300c\u6838\u5fc3\u7db2\u8def\u9ad4\u9a57\u300d\u5831\u544a\u76e3\u63a7DNS\u76f8\u95dc\u554f\u984c\uff08\u6a19\u8a18\u70ba\u300cDNS\u89e3\u6790\u6642\u9593\u300d\uff09\u3002<\/p>\n<\/li>\n

                 • \n \u66f4\u63dbDNS\u670d\u52d9\u5546\u6642\uff0c\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u6703\u51fa\u73fe\u505c\u6a5f\u6642\u9593\u55ce\uff1f<\/strong><\/p>\n

                   \u82e5\u63d0\u524d\u898f\u5283\u5247\u4e0d\u6703\u3002\u5728\u66f4\u63db\u524d24\u5c0f\u6642\u5c07TTL\u503c\u964d\u81f3300\u79d2\u2014\u2014\u78ba\u4fdd\u89e3\u6790\u5668\u5feb\u53d6\u7684\u7d00\u9304\u66f4\u5feb\u904e\u671f\u3002\u9078\u64c7\u7f8e\u570b\u975e\u9ad8\u5cf0\u6642\u6bb5\u66f4\u63db\u7db2\u57df\u540d\u7a31\u4f3a\u670d\u5668\uff0c\u4ee5\u6700\u5927\u9650\u5ea6\u6e1b\u5c11\u5f71\u97ff\u3002\u900f\u904edig +short yourdomain.com<\/code>\u5728\u7f8e\u570b\u5404\u5730\u5340\u6e2c\u8a66\u89e3\u6790\u7d50\u679c\uff0c\u78ba\u8a8d\u7d00\u9304\u5df2\u6210\u529f\u50b3\u64ad\u3002<\/p>\n<\/li>\n<\/ul>\n

                   \u6838\u5fc3\u7e3d\u7d50\uff1a\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528DNS\u903e\u6642\u4fee\u5fa9 = \u7cbe\u6e96\u5b9a\u4f4d + \u4e3b\u52d5\u9632\u79a6<\/strong><\/h2>\n

                   \u5c0d\u65bc\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u548c\u4ee3\u7ba1\u5834\u666f\uff0cDNS\u903e\u6642\u4e26\u975e\u901a\u7528\u578b\u554f\u984c\u2014\u2014\u9700\u8981\u91dd\u5c0d\u5317\u7f8e\u7db2\u8def\u5730\u7406\u7279\u5fb5\u548c\u4f3a\u670d\u5668\u74b0\u5883\u81ea\u8a02\u89e3\u6c7a\u65b9\u6848\u3002\u95dc\u9375\u5728\u65bc\uff1a\u9996\u5148\u900f\u904edig<\/code>\u3001mtr<\/code>\u7b49\u5e95\u5c64\u5de5\u5177\u5b9a\u4f4d\u6839\u672c\u539f\u56e0\uff08\u670d\u52d9\u5546\u4e0d\u5339\u914d\u3001\u4f3a\u670d\u5668\u8a2d\u5b9a\u932f\u8aa4\u6216\u7db2\u8def\u58c5\u585e\uff09\uff0c\u7136\u5f8c\u5be6\u65bd\u91dd\u5c0d\u6027\u4fee\u5fa9\uff08\u5237\u65b0\u5feb\u53d6\u3001\u6700\u4f73\u5316TTL\u3001\u65b0\u589e\u5099\u63f4\u89e3\u6790\u5668\uff09\u3002\u9577\u671f\u4f86\u770b\uff0c\u4e3b\u52d5\u7a3d\u6838\u548c\u5340\u57dfDNS\u6700\u4f73\u5316\u80fd\u6709\u6548\u9632\u7bc4\u903e\u6642\u554f\u984c\u3002\u900f\u904e\u805a\u7126\u9019\u4e9b\u91dd\u5c0d\u7f8e\u570b\u4f3a\u670d\u5668\u7684\u6280\u8853\u7b56\u7565\uff0c\u53ef\u78ba\u4fdd\u4f3a\u670d\u5668\u79df\u7528\/\u4ee3\u7ba1\u670d\u52d9\u5c0d\u5168\u7403\u4f7f\u7528\u8005\uff08\u7121\u8ad6\u662f\u7d10\u7d04\u9084\u662f\u6771\u4eac\uff09\u4fdd\u6301\u7a69\u5b9a\u5b58\u53d6\u3002\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u80fd\u89e3\u6c7a\u5373\u6642\u6545\u969c\uff0c\u9084\u80fd\u63d0\u5347\u4f3a\u670d\u5668\u53ef\u9760\u6027\uff0c\u5b8c\u7f8e\u5951\u5408\u7f8e\u570b\u672c\u571f\u57fa\u790e\u5efa\u8a2d\u7684DNS\u903e\u6642\u4fee\u5fa9<\/strong>\u6838\u5fc3\u76ee\u6a19\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

                   \u5c0d\u65bc\u7ba1\u7406\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u6216\u4ee3\u7ba1\u670d\u52d9\u7684\u6280\u8853\u5718\u968a\u800c\u8a00\uff0cDNS\u903e\u6642\u7d55\u975e\u5c0f\u6545\u969c\u2014\u2014\u5b83\u6703\u76f4\u63a5\u5f71\u97ff\u4f3a\u670d\u5668\u53ef\u7528\u6027\u3001\u4f7f\u7528\u8005\u9ad4\u9a57\uff0c […]<\/p>\n

                   Read More…<\/a><\/p>\n","protected":false},"author":2,"featured_media":28784,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4815],"tags":[9444,9445,4849,1944],"class_list":["post-28787","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-america-dedicated-server-tc","tag-dns-timeout-fix","tag-us-server-dns-issues","tag-us-hosting-tc","tag-dns-resolution-tc"],"acf":[],"yoast_head":"\n