\n \u63db\u53e5\u8a71\u8aaa\uff0c300 \u79d2\u8655\u5728\u4e00\u500b\u975e\u5e38\u5be6\u7528\u7684\u300c\u4e2d\u9593\u5e36\u300d\uff1a\u8db3\u5920\u77ed\uff0c\u53ef\u4ee5\u652f\u63f4\u654f\u6377\u5207\u63db\uff1b\u53c8\u8db3\u5920\u9577\uff0c\u4e0d\u81f3\u65bc\u5728\u696d\u52d9\u9ad8\u5cf0\u6642\u731b\u6572 DNS \u5c64\uff0c\u540c\u6642\u5b83\u8db3\u5920\u7c21\u55ae\uff0c\u5718\u968a\u88e1\u6bcf\u500b\u4eba\u90fd\u80fd\u8f15\u9b06\u8a18\u4f4f\uff0c\u800c\u4e0d\u5fc5\u7ffb\u95b1\u904b\u884c\u624b\u518a\u3002\n <\/p>\n

4. \u5178\u578b\u5834\u666f\uff1a\u54ea\u4e9b\u6642\u5019\u4f60\u4e00\u5b9a\u8981\u5148\u964d TTL<\/strong><\/h2>\n<\/h2>\n

\n \u591a\u6578\u8b93\u4eba\u300c\u8840\u58d3\u98c6\u5347\u300d\u7684 DNS \u4e8b\u6545\uff0c\u5176\u5be6\u90fd\u9075\u5faa\u76f8\u4f3c\u5287\u672c\uff1a\u5728\u4e00\u500b\u9ad8 TTL \u4e4b\u4e0b\u76f4\u63a5\u6539\u8a18\u9304\uff0c\u7136\u5f8c\u770b\u8457\u4e00\u90e8\u5206\u4f7f\u7528\u8005\u5728\u63a5\u4e0b\u4f86\u7684\u597d\u5e7e\u500b\u5c0f\u6642\uff0c\u4e00\u76f4\u6253\u5230\u932f\u8aa4\u7684\u5f8c\u7aef\uff0c\u6700\u5f8c\u53ea\u597d\u5728\u61c9\u7528\u5c64\u5806\u88dc\u4e01\u53bb\u63a9\u84cb\u884c\u70ba\u4e0d\u4e00\u81f4\u3002\u4e8b\u5148\u964d\u4f4e TTL \u662f\u4e00\u500b\u6975\u5c0f\u7684\u52d5\u4f5c\uff0c\u537b\u80fd\u5b8c\u5168\u6d88\u6ec5\u9019\u4e00\u985e\u4e8b\u6545\u3002\n <\/p>\n

\n
1. \n \u70ba\u7f8e\u570b\u4f7f\u7528\u8005\u9077\u79fb\u4f3a\u670d\u5668\u79df\u7528\u74b0\u5883<\/strong><\/p>\n
   \n
   • \u628a\u670d\u52d9\u5f9e\u55ae\u5340\u57df VM \u9077\u79fb\u5230\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u670d\u52d9\u5546\u3002<\/li>\n
   • \u5c07\u90e8\u843d\u683c\u6216\u884c\u92b7\u7ad9\u9ede\u9077\u5230\u975c\u614b\u8a17\u7ba1\u6216 CDN \u524d\u7f6e\u7684\u7269\u4ef6\u5132\u5b58\u3002<\/li>\n
   • \u5207\u63db\u7b56\u7565\uff1a\u63d0\u524d\u5e7e\u5929\u964d\u4f4e TTL\uff0c\u7136\u5f8c\u5728\u898f\u5283\u597d\u7684\u6642\u9593\u7a97\u5167\u5207\u63db A \u6216 CNAME \u8a18\u9304\u3002<\/li>\n<\/ul>\n<\/li>\n
   • \n \u628a\u5de5\u4f5c\u8ca0\u8f09\u9077\u5f80\u4f3a\u670d\u5668\u8a17\u7ba1\u6a5f\u623f<\/strong><\/p>\n
     \n
     • \u5f9e\u8fa6\u516c\u5ba4\u6a5f\u6ac3\u6216\u8001\u820a\u6a5f\u623f\u642c\u5165\u73fe\u4ee3\u5316\u4f3a\u670d\u5668\u8a17\u7ba1\u8cc7\u6599\u4e2d\u5fc3\u3002<\/li>\n
     • \u70ba API \u8207 VPN \u66f4\u63db\u516c\u5171\u5165\u53e3\uff0c\u540c\u6642\u4fdd\u6301\u5ba2\u6236\u7aef\u4fe1\u4efb\u93c8\u4e0d\u8b8a\u3002<\/li>\n
     • \u6536\u76ca\uff1a\u7e2e\u77ed TTL \u80fd\u78ba\u4fdd\u5ba2\u6236\u7aef\u66f4\u5feb\u505c\u6b62\u5b58\u53d6\u820a\u6a5f\u623f\u3002<\/li>\n<\/ul>\n<\/li>\n
     • \n \u8b8a\u66f4 CDN\u3001WAF \u6216\u8ca0\u8f09\u5e73\u8861\u5668<\/strong><\/p>\n
       \n
       • \u7528\u8a17\u7ba1\u908a\u7de3\u5e73\u53f0\u66ff\u63db\u81ea\u7814\u53cd\u5411\u4ee3\u7406\u3002<\/li>\n
       • \u5728\u61c9\u7528\u9632\u706b\u7246\u670d\u52d9\u5f8c\u66f4\u65b0 CNAMES\u3002<\/li>\n
       • \u7576\u8a18\u9304\u5728\u8f03\u77ed TTL \u4e0b\u5207\u63db\u6642\uff0c\u908a\u7de3\u7bc0\u9ede\u6703\u66f4\u5feb\u8ffd\u8e64\u65b0\u7684\u6e90\u7ad9 IP\u3002<\/li>\n<\/ul>\n<\/li>\n
       • \n \u90f5\u4ef6\u7cfb\u7d71\u8207 MX \u8b8a\u66f4<\/strong><\/p>\n
         \n
         • \u66ff\u63db\u90f5\u4ef6\u670d\u52d9\u5546\uff0c\u6216\u628a\u90f5\u4ef6\u9598\u9053\u642c\u5230\u66f4\u9760\u8fd1\u7f8e\u570b\u4f7f\u7528\u8005\u7684\u5340\u57df\u3002<\/li>\n
         • \u5728\u540c\u4e00\u8b8a\u66f4\u8996\u7a97\u5167\u5c0d\u9f4a MX\u3001SPF \u53ca\u76f8\u95dc\u8a18\u9304\u3002<\/li>\n
         • \u77ed TTL \u80fd\u5e6b\u52a9\u5916\u90e8\u5bc4\u4ef6\u4eba\u66f4\u5feb\u6536\u6582\u5230\u65b0\u7684 MX\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

           5. \u4f7f\u7528 300 \u79d2 TTL \u7684\u5206\u6b65\u8b8a\u66f4\u7b56\u7565<\/strong><\/h2>\n<\/h2>\n

           \n \u66f4\u5b89\u5168\u7684\u751f\u7522 DNS \u8b8a\u66f4\u6d41\u7a0b\uff0c\u66f4\u50cf\u4e00\u500b\u7cbe\u7c21\u7248\u7684\u767c\u4f48\u6d41\u6c34\u7dda\uff0c\u800c\u4e0d\u662f\u81e8\u6642\u958b\u95dc\u3002\u76ee\u6a19\u662f\u5728\u771f\u6b63\u4fee\u6539\u8a18\u9304\u503c\u4e4b\u524d\uff0c\u5c31\u78ba\u4fdd\u7db2\u969b\u7db2\u8def\u5404\u8655\u7684\u5feb\u53d6\u89e3\u6790\u5668\u5df2\u9075\u5b88\u4f60\u8a2d\u5b9a\u7684\u77ed\u751f\u547d\u9031\u671f\u7b56\u7565\u3002\n <\/p>\n

           \n
           1. \n \u76e4\u9ede\u6d89\u53ca\u7684\u8a18\u9304<\/strong><\/p>\n
              \n
              • \u8b58\u5225\u6240\u6709\u76f8\u95dc\u7684 A\u3001AAAA\u3001CNAME \u548c MX \u8a18\u9304\u3002<\/li>\n
              • \u7559\u610f\u96b1\u85cf\u5728\u53cb\u5584\u4e3b\u6a5f\u540d\u7a31\u4e4b\u5f8c\u7684 CNAME \u93c8\u3002<\/li>\n
              • \u8a18\u9304\u7576\u524d TTL \u6578\u503c\uff0c\u4e26\u95dc\u6ce8\u6240\u6709\u9ad8\u65bc 600 \u79d2\u7684\u8a18\u9304\u3002<\/li>\n<\/ul>\n<\/li>\n
              • \n \u63d0\u524d\u964d\u4f4e TTL<\/strong><\/p>\n
                \n
                • \u5c07\u9019\u4e9b\u8a18\u9304\u7684 TTL \u8abf\u6574\u70ba 300 \u79d2\uff0c\u4f46\u66ab\u6642\u4e0d\u8981\u4fee\u6539 IP\u3002<\/li>\n
                • \u900f\u904e DNS \u670d\u52d9\u5546\u7684\u63a7\u5236\u53f0\u6216 API \u63d0\u4ea4\u4e26\u767c\u4f48\u5340\u57df\u8b8a\u66f4\u3002<\/li>\n
                • \u5982\u679c\u4f60\u6709\u93e1\u50cf\u6216\u8f14\u52a9\u7db2\u57df\u4f3a\u670d\u5668\uff0c\u78ba\u4fdd\u5b83\u5011\u90fd\u62ff\u5230\u65b0\u7684 TTL\u3002<\/li>\n<\/ul>\n<\/li>\n
                • \n \u7b49\u5f85\u820a\u5feb\u53d6\u300c\u81ea\u7136\u5931\u6548\u300d<\/strong><\/p>\n
                  \n
                  • \u5728\u57f7\u884c\u6700\u7d42\u5207\u63db\u524d\uff0c\u81f3\u5c11\u7b49\u5f85\u4e00\u500b\u5b8c\u6574\u7684\u820a TTL \u9031\u671f\u3002<\/li>\n
                  • \u5982\u679c\u820a TTL \u662f 3600\uff0c\u5c31\u7b49\u4e00\u500b\u5c0f\u6642\uff1b\u5982\u679c\u662f 86400\uff0c\u5c31\u628a\u5207\u63db\u5b89\u6392\u5728\u9694\u5929\u3002<\/li>\n
                  • \u5728\u9019\u6bb5\u6642\u9593\u5167\uff0c\u89e3\u6790\u5668\u6703\u9010\u6b65\u6539\u70ba\u9075\u5b88\u65b0\u7684\u4e94\u5206\u9418 TTL \u5408\u540c\u3002<\/li>\n<\/ul>\n<\/li>\n
                  • \n \u5728\u898f\u5283\u597d\u7684\u8b8a\u66f4\u8996\u7a97\u5167\u4fee\u6539\u8a18\u9304<\/strong><\/p>\n
                    \n
                    • \u628a A \u6216 AAAA \u8a18\u9304\u5207\u5230\u65b0 IP\uff08\u65b0\u7684\u4f3a\u670d\u5668\u79df\u7528\u96c6\u7fa4\u3001\u65b0\u7684\u4f3a\u670d\u5668\u8a17\u7ba1\u4f4d\u5740\u6bb5\uff0c\u6216\u65b0\u7684\u8ca0\u8f09\u5e73\u8861\u5668\uff09\u3002<\/li>\n
                    • \u66f4\u65b0\u6307\u5411\u65b0 CDN \u6216 WAF \u7aef\u9ede\u7684 CNAME \u8a18\u9304\u3002<\/li>\n
                    • \u5728\u4e00\u6bb5\u6642\u9593\u5167\uff0c\u8b93\u76e3\u63a7\u540c\u6642\u95dc\u6ce8\u820a\u8def\u5f91\u548c\u65b0\u8def\u5f91\u3002<\/li>\n<\/ul>\n<\/li>\n
                    • \n \u89c0\u5bdf\u4e26\u9a57\u8b49\u884c\u70ba<\/strong><\/p>\n
                      \n
                      • \u6aa2\u67e5\u5169\u689d\u8def\u5f91\u7684\u932f\u8aa4\u7387\u3001\u5ef6\u9072\u8207\u65e5\u8a8c\u91cf\u3002<\/li>\n
                      • \u5f9e\u4e0d\u540c\u7db2\u8def\u4f7f\u7528 dig<\/code> \u6216 nslookup<\/code> \u4e4b\u985e\u5de5\u5177\uff0c\u78ba\u8a8d\u5be6\u969b\u8fd4\u56de\u7684\u8a18\u9304\u3002<\/li>\n
                      • \u78ba\u8a8d\u56de\u61c9\u4e2d\u7684 TTL \u78ba\u5be6\u5df2\u7d93\u662f 300 \u79d2\u3002<\/li>\n<\/ul>\n<\/li>\n
                      • \n \u8996\u60c5\u6cc1\u91cd\u65b0\u62c9\u9ad8 TTL<\/strong><\/p>\n
                        \n
                        • \u5728\u4e00\u5207\u7a69\u5b9a\u5f8c\uff0c\u53ef\u4ee5\u9069\u5ea6\u62c9\u9ad8 TTL\uff0c\u4ee5\u5c11\u91cf\u654f\u6377\u6027\u63db\u53d6\u66f4\u4f4e\u67e5\u8a62\u91cf\u3002<\/li>\n
                        • \u524d\u7aef\u8a18\u9304\u53ef\u4ee5\u4fdd\u6301\u5728 300\u2013600 \u79d2\uff0c\u800c\u6975\u5c11\u8b8a\u66f4\u7684\u8a18\u9304\u53ef\u4ee5\u62c9\u5f97\u66f4\u9577\u3002<\/li>\n
                        • \u5728\u904b\u884c\u624b\u518a\u4e2d\u6e05\u6670\u8a18\u9304\u4f60\u9078\u5b9a\u7684\u57fa\u7dda\u7b56\u7565\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

                          6. \u4fee\u6539 TTL \u6642\u5feb\u53d6\u5167\u90e8\u5230\u5e95\u767c\u751f\u4e86\u4ec0\u9ebc<\/strong><\/h2>\n<\/h2>\n

                          \n \u5f88\u591a\u5718\u968a\u5bb9\u6613\u5ffd\u7565\u7684\u4e00\u500b\u7d30\u7bc0\u662f\uff1a\u8abf\u6574 TTL \u4e26\u4e0d\u6703\u91cd\u5beb\u5df2\u7d93\u5b58\u5165\u905e\u8ff4\u89e3\u6790\u5668\u4e2d\u7684\u300c\u5269\u9918\u751f\u547d\u9031\u671f\u300d\u3002\u65b0\u7684 TTL \u53ea\u6709\u5728\u9019\u4e9b\u5feb\u53d6\u9805\u904e\u671f\u3001\u89e3\u6790\u5668\u518d\u6b21\u5411\u6b0a\u5a01\u4f3a\u670d\u5668\u767c\u8d77\u67e5\u8a62\u4e4b\u5f8c\u624d\u6703\u771f\u6b63\u88ab\u5957\u7528\u3002\n <\/p>\n

                          \n
                          • \n \u5982\u679c\u7576\u524d\u5feb\u53d6\u689d\u76ee\u9084\u5269\u4e00\u5c0f\u6642\u6709\u6548\u671f\uff0c\u628a TTL \u964d\u5230\u4e94\u5206\u9418\u4e5f\u4e0d\u6703\u300c\u58d3\u7e2e\u300d\u6389\u90a3\u4e00\u5c0f\u6642\u3002\n <\/li>\n
                          • \n \u4e00\u65e6\u9019\u4e00\u5c0f\u6642\u7d50\u675f\uff0c\u89e3\u6790\u5668\u91cd\u65b0\u6574\u7406\u8a18\u9304\u5f8c\uff0c\u5c31\u6703\u958b\u59cb\u4ee5\u65b0\u7684 300 \u79d2 TTL \u5feb\u53d6\u8fd4\u56de\u7684\u7b54\u6848\u3002<\/li>\n
                          • \n \u9019\u5c31\u662f\u70ba\u4ec0\u9ebc\u5728\u9ad8\u98a8\u96aa\u5207\u63db\u4e4b\u524d\uff0c\u4e00\u5b9a\u8981\u63d0\u524d\u964d\u4f4e TTL\uff0c\u5c24\u5176\u662f\u4e4b\u524d\u7684 TTL \u6578\u503c\u672c\u4f86\u5c31\u5f88\u5927\u7684\u6642\u5019\u3002\n <\/li>\n<\/ul>\n

                            \n \u7406\u89e3\u9019\u4e00\u884c\u70ba\u6703\u76f4\u63a5\u5f71\u97ff\u4f60\u7684\u8b8a\u66f4\u884c\u4e8b\u66c6\uff1a\u4f60\u6703\u5728\u65e9\u671f\u5c31\u964d\u4f4e TTL\uff0c\u8b93\u5feb\u53d6\u81f3\u5c11\u5b8c\u6210\u4e00\u6b21\u81ea\u7136\u8f2a\u66ff\uff0c\u7136\u5f8c\u53ea\u5728\u78ba\u4fe1\u89e3\u6790\u5668\u5df2\u7d93\u53ef\u4ee5\u5feb\u901f\u4e1f\u68c4\u820a\u8a18\u9304\u6642\uff0c\u624d\u57f7\u884c\u771f\u6b63\u654f\u611f\u7684\u66f4\u65b0\u3002\n <\/p>\n

                            7. \u6b0a\u8861\uff1a\u5ef6\u9072\u3001\u8ca0\u8f09\u8207\u89e3\u6790\u5668\u884c\u70ba<\/strong><\/h2>\n<\/h2>\n

                            \n \u5f9e\u6548\u80fd\u89d2\u5ea6\u770b\uff0c\u964d\u4f4e TTL \u80af\u5b9a\u6703\u5e36\u4f86\u4e00\u4e9b\u526f\u4f5c\u7528\uff0c\u4f46\u5728\u5408\u7406\u7bc4\u570d\u5167\u901a\u5e38\u90fd\u53ef\u63a5\u53d7\u3002\u5c24\u5176\u5728\u4eca\u5929\uff0c\u73fe\u4ee3 DNS \u670d\u52d9\u5546\u6703\u5728\u7f8e\u570b\u53ca\u5168\u7403\u591a\u5730\u904b\u884c anycast \u6b0a\u5a01\u96c6\u7fa4\uff0c\u5728\u9019\u6a23\u7684\u524d\u63d0\u4e0b\uff0c\u4e94\u5206\u9418\u9019\u4e00\u6578\u503c\u5f88\u96e3\u6210\u70ba\u58d3\u57ae\u57fa\u790e\u8a2d\u65bd\u7684\u300c\u6700\u5f8c\u4e00\u6839\u7a3b\u8349\u300d\u3002\n <\/p>\n

                            \n
                            1. \n \u66f4\u983b\u7e41\u7684\u67e5\u8a62<\/strong><\/p>\n
                               \n
                               • \u7531\u65bc\u53ef\u91cd\u7528\u6642\u9593\u7e2e\u77ed\uff0c\u905e\u8ff4\u89e3\u6790\u5668\u9700\u8981\u66f4\u983b\u7e41\u5730\u767c\u8d77\u67e5\u8a62\u3002<\/li>\n
                               • \u4f60\u7684\u65e5\u8a8c\u6703\u770b\u5230\u8207 TTL \u4e0b\u964d\u5e45\u5ea6\u5927\u81f4\u6210\u6bd4\u4f8b\u7684\u67e5\u8a62\u91cf\u4e0a\u5347\u3002<\/li>\n
                               • \u53ea\u8981\u4f9b\u61c9\u5546\u5920\u5c08\u696d\uff0c\u901a\u5e38\u80fd\u8f15\u9b06\u5438\u6536\u9019\u9ede\u984d\u5916\u8ca0\u8f09\u3002<\/li>\n<\/ul>\n<\/li>\n
                               • \n \u8f15\u5fae\u7684\u5ef6\u9072\u5f71\u97ff<\/strong><\/p>\n
                                 \n
                                 • \u7d42\u7aef\u4f7f\u7528\u8005\u53ef\u80fd\u6703\u9047\u5230\u66f4\u591a stub resolver \u7684\u5feb\u53d6\u672a\u547d\u4e2d\u3002<\/li>\n
                                 • \u4e0d\u904e\u5728\u6574\u9ad4\u8acb\u6c42\u8def\u5f91\u4e2d\uff0cDNS \u5ef6\u9072\u901a\u5e38\u53ea\u662f\u6975\u5c0f\u7684\u4e00\u90e8\u5206\u3002<\/li>\n
                                 • \u5be6\u52d9\u4e0a\uff0c\u4e00\u6b21\u826f\u597d\u9077\u79fb\u5e36\u4f86\u7684\u8cc7\u6599\u9762\u6536\u76ca\uff0c\u9060\u9060\u84cb\u904e\u9019\u9ede\u6210\u672c\u3002<\/li>\n<\/ul>\n<\/li>\n
                                 • \n \u89e3\u6790\u5668\u7684\u300c\u500b\u6027\u5316\u300d\u884c\u70ba<\/strong><\/p>\n
                                   \n
                                   • \u4e00\u4e9b\u89e3\u6790\u5668\u6703\u5f37\u5236\u57f7\u884c\u81ea\u5df1\u7684 TTL \u6700\u5c0f\u503c\u6216\u6700\u5927\u503c\uff0c\u4e0d\u5b8c\u5168\u5c0a\u91cd\u5340\u57df\u914d\u7f6e\u3002<\/li>\n
                                   • \u516c\u5171\u89e3\u6790\u5668\u53ef\u80fd\u6703\u9650\u5236\u8d85\u5927\u7684 TTL\uff0c\u6216\u76f4\u63a5\u5ffd\u7565\u6975\u4f4e\u7684 TTL\u3002<\/li>\n
                                   • \u9078\u64c7 300 \u79d2\u9019\u6a23\u7684\u4e2d\u7b49\u503c\uff0c\u901a\u5e38\u80fd\u5728\u9019\u4e9b\u300c\u500b\u6027\u300d\u4e4b\u4e0b\u4fdd\u6301\u66f4\u597d\u76f8\u5bb9\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

                                     8. \u9ad8\u7d1a\u7528\u6cd5\uff1a\u6253\u9020\u96f6\u505c\u6a5f\u5207\u63db<\/strong><\/h2>\n<\/h2>\n

                                     \n \u964d\u4f4e TTL \u53ea\u662f\u6253\u9020\u9806\u66a2\u9077\u79fb\u5de5\u5177\u7bb1\u4e2d\u7684\u4e00\u4ef6\u5de5\u5177\u3002\u71df\u904b\u95dc\u9375\u5e73\u53f0\u7684\u5de5\u7a0b\u5e2b\uff0c\u5f80\u5f80\u9084\u6703\u628a\u77ed\u751f\u547d\u9031\u671f\u7684 DNS \u7b54\u6848\uff0c\u8207\u6d41\u91cf\u5206\u6d41\u3001\u5065\u5eb7\u6aa2\u67e5\u548c\u5206\u968e\u6bb5\u767c\u4f48\u7d44\u5408\u5728\u4e00\u8d77\u4f7f\u7528\u3002\n <\/p>\n

                                     \n
                                     • \n \u57fa\u65bc DNS \u7684\u85cd\u7da0\u767c\u4f48<\/strong><\/p>\n
                                       \n
                                       • \u7dad\u8b77\u5169\u5957\u5b8c\u5168\u7368\u7acb\u7684\u5806\u758a\uff1a\u300c\u85cd\u300d\u8207\u300c\u7da0\u300d\uff0c\u5404\u81ea\u4f7f\u7528\u4e0d\u540c\u7684 IP\u3002<\/li>\n
                                       • \u751f\u7522\u8a18\u9304\u59cb\u7d42\u53ea\u6307\u5411\u5176\u4e2d\u4e00\u5957\uff0c\u53e6\u4e00\u5957\u7528\u4f86\u505a\u5347\u7d1a\u548c\u58d3\u529b\u6e2c\u8a66\u3002<\/li>\n
                                       • TTL \u8f03\u77ed\u6642\uff0c\u4e00\u65e6\u767c\u73fe\u554f\u984c\uff0c\u5c31\u80fd\u8fc5\u901f\u5728\u5169\u5957\u74b0\u5883\u4e4b\u9593\u5207\u63db\u3002<\/li>\n<\/ul>\n<\/li>\n
                                       • \n Shadow \u6d41\u91cf<\/strong><\/p>\n
                                         \n
                                         • \u5728\u628a\u9762\u5411\u7f8e\u570b\u4f7f\u7528\u8005\u7684 API \u9077\u5f80\u65b0\u7684\u4f3a\u670d\u5668\u79df\u7528\u74b0\u5883\u524d\uff0c\u5148\u5c07\u90e8\u5206\u8acb\u6c42\u93e1\u50cf\u5230\u65b0\u5806\u758a\u9032\u884c\u9a57\u8b49\u3002<\/li>\n
                                         • \u5728\u4e0d\u5f71\u97ff\u771f\u5be6\u4f7f\u7528\u8005\u7684\u524d\u63d0\u4e0b\uff0c\u6bd4\u5c0d\u56de\u61c9\u5167\u5bb9\u8207\u5ef6\u9072\u3002<\/li>\n
                                         • \u7576\u65b0\u5806\u758a\u5728 shadow \u6d41\u91cf\u4e0b\u8868\u73fe\u7a69\u5b9a\uff0c\u771f\u6b63\u7684 DNS \u5207\u63db\u5c31\u6c92\u90a3\u9ebc\u53ef\u6015\u3002<\/li>\n<\/ul>\n<\/li>\n
                                         • \n \u6309\u5730\u57df\u6f38\u9032\u5f0f\u5207\u63db<\/strong><\/p>\n
                                           \n
                                           • \u5728\u591a\u500b\u8cc7\u6599\u4e2d\u5fc3\u6216\u4f3a\u670d\u5668\u8a17\u7ba1\u6a5f\u623f\u540c\u6642\u904b\u884c\u524d\u7aef\u3002<\/li>\n
                                           • \u5f9e\u4f4e\u98a8\u96aa\u5340\u57df\u958b\u59cb\uff0c\u6309\u5730\u57df\u9010\u6b65\u5f15\u5165\u65b0\u7684\u5165\u53e3\u7aef\u9ede\u3002<\/li>\n
                                           • \u8f03\u77ed TTL \u80fd\u8b93\u5340\u57df\u5316\u8abf\u6574\u4fdd\u6301\u66f4\u9748\u6d3b\u3001\u66f4\u5373\u6642\u3002<\/li>\n<\/ul>\n<\/li>\n
                                           • \n \u5206\u5c64\u6545\u969c\u5207\u63db<\/strong><\/p>\n
                                             \n
                                             • \u628a\u5065\u5eb7\u6aa2\u67e5 DNS\u3001\u8ca0\u8f09\u5e73\u8861\u8207\u7194\u65b7\u6a5f\u5236\u5206\u5c64\u7d44\u5408\u8d77\u4f86\u3002<\/li>\n
                                             • \u8b93 DNS \u8ca0\u8cac\u7c97\u7c92\u5ea6\u8def\u7531\u8207\u300c\u4e0a\u9650\u6536\u6582\u6642\u9593\u300d\u3002<\/li>\n
                                             • \u628a\u77ac\u6642\u6545\u969c\u7559\u7d66\u53e2\u96c6\u5167\u90e8\u6a5f\u5236\u8655\u7406\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                                               9. \u53ef\u89c0\u6e2c\u6027\uff1a\u4ec0\u9ebc\u6642\u5019\u53ef\u4ee5\u653e\u5fc3\u547c\u5438<\/strong><\/h2>\n<\/h2>\n

                                               \n \u4e00\u6b21 DNS \u8b8a\u66f4\u662f\u5426\u6210\u529f\uff0c\u4e26\u4e0d\u662f\u5728\u4f60\u6309\u4e0b\u300c\u78ba\u8a8d\u300d\u6309\u9215\u7684\u90a3\u4e00\u523b\u6c7a\u5b9a\u7684\uff0c\u800c\u662f\u5728\u4e4b\u5f8c\u7684\u5e7e\u5206\u9418\u4e43\u81f3\u5e7e\u5341\u5206\u9418\u88e1\u3002\u77ed TTL \u5e36\u4f86\u4e86\u66f4\u5feb\u7684\u56de\u994b\u8ff4\u5708\uff0c\u4f46\u4f60\u4ecd\u7136\u9700\u8981\u5404\u7a2e\u8a0a\u865f\u4f86\u5224\u65b7\uff0c\u65b0\u8def\u5f91\u7684\u884c\u70ba\u662f\u5426\u771f\u7684\u7b26\u5408\u9810\u671f\u3002\n <\/p>\n

                                               \n
                                               1. \n \u5ba2\u6236\u7aef\u8207\u908a\u7de3\u9059\u6e2c<\/strong><\/p>\n
                                                  \n
                                                  • \u95dc\u6ce8\u8de8\u5730\u57df\u7684\u932f\u8aa4\u7387\u3001\u9023\u7dda\u5617\u8a66\u6b21\u6578\u548c\u91cd\u8a66\u60c5\u6cc1\u3002<\/li>\n
                                                  • \u5728\u53ef\u80fd\u7684\u60c5\u6cc1\u4e0b\uff0c\u5206\u5225\u8ffd\u8e64\u820a\u7aef\u9ede\u548c\u65b0\u7aef\u9ede\u7684\u5404\u9805\u6307\u6a19\u3002<\/li>\n
                                                  • \u70ba\u72c0\u614b\u770b\u677f\u63d0\u4f9b\u6309\u89e3\u6790\u5668\u6216 ASN \u62c6\u5206\u7684\u8cc7\u6599\u8996\u89d2\u3002<\/li>\n<\/ul>\n<\/li>\n
                                                  • \n DNS \u67e5\u8a62\u65e5\u8a8c<\/strong><\/p>\n
                                                    \n
                                                    • \u8a18\u9304\u4f86\u81ea\u6b0a\u5a01\u4f3a\u670d\u5668\u7684\u56de\u61c9\uff0c\u5305\u62ec\u5be6\u969b\u8fd4\u56de\u7684 TTL\u3002<\/li>\n
                                                    • \u78ba\u8a8d\u5728\u5e7e\u5206\u9418\u5167\uff0c\u6d41\u91cf\u6703\u7a69\u6b65\u9077\u79fb\u5230\u65b0\u7b54\u6848\u4e0a\u3002<\/li>\n
                                                    • \u8b58\u5225\u6975\u5c11\u6578\u4ecd\u7136\u300c\u62b1\u8457\u820a\u8cc7\u6599\u4e0d\u653e\u300d\u7684\u89e3\u6790\u5668\uff0c\u4e26\u76f8\u61c9\u8abf\u6574\u9810\u671f\u3002<\/li>\n<\/ul>\n<\/li>\n
                                                    • \n \u985e Canary \u7684\u7db2\u57df\u63a2\u6e2c<\/strong><\/p>\n
                                                      \n
                                                      • \u5efa\u7acb\u4e00\u6b21\u6027\u6e2c\u8a66\u4e3b\u6a5f\u540d\u7a31\uff0c\u7528\u4f86\u9a57\u8b49\u89e3\u6790\u5668\u5c0d\u66f4\u65b0\u5f8c TTL \u7684\u8655\u7406\u884c\u70ba\u3002<\/li>\n
                                                      • \u7528\u81ea\u52d5\u5316\u8173\u672c\u5728\u4e0d\u540c\u7db2\u8def\u548c\u5730\u57df\u9031\u671f\u6027\u57f7\u884c dig<\/code>\u3002<\/li>\n
                                                      • \u628a\u89c0\u6e2c\u5230\u7684\u6536\u6582\u6642\u9593\u8a18\u9304\u70ba\u4f60\u7684\u904b\u7dad\u57fa\u7dda\u8cc7\u6599\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

                                                        10. \u7d66\u5de5\u7a0b\u5718\u968a\u7684\u5be6\u7528\u7d93\u9a57\u6cd5\u5247<\/strong><\/h2>\n<\/h2>\n

                                                        \n \u5176\u5be6\uff0c\u4f60\u5b8c\u5168\u4e0d\u5fc5\u628a DNS \u641e\u6210\u4e00\u9580\u8907\u96dc\u5b78\u79d1\uff0c\u53ea\u8981\u5718\u968a\u5171\u4eab\u82e5\u5e72\u7c21\u6f54\u898f\u5247\uff0c\u4e26\u628a\u5b83\u5011\u690d\u5165\u65e5\u5e38\u6d41\u7a0b\u4e2d\u5c31\u8db3\u5920\u4e86\u3002\u628a TTL \u7ba1\u7406\u8996\u4f5c\u90e8\u7f72\u885b\u751f\u7684\u4e00\u90e8\u5206\uff0c\u800c\u4e0d\u662f\u5076\u767c\u7684\u904b\u7dad\u5947\u6280\uff0c\u662f\u66f4\u5065\u5eb7\u7684\u59ff\u614b\u3002\n <\/p>\n

                                                        \n
                                                        • \n \u628a TTL \u8b8a\u66f4\u7576\u6210\u7a0b\u5f0f\u78bc\uff1a\u6709\u7248\u672c\u3001\u6709\u5be9\u67e5\uff0c\u4e26\u900f\u904e\u6cbb\u7406\u57fa\u790e\u8a2d\u65bd\u7684\u540c\u4e00\u5957\u6d41\u6c34\u7dda\u4f86\u767c\u4f48\u3002\n <\/li>\n
                                                        • \n \u8b93\u9762\u5411\u751f\u7522\u7684\u95dc\u9375\u8a18\u9304\u9810\u8a2d\u63a1\u7528\u4e00\u7a2e TTL\uff0c\u4f7f\u5f97\u5728\u4e00\u500b\u5de5\u4f5c\u5c0f\u6642\u5167\u53ef\u4ee5\u5b89\u5168\u5b8c\u6210\u8b8a\u66f4\uff0c\u800c\u4e0d\u81f3\u65bc\u614c\u4e82\u3002<\/li>\n
                                                        • \n \u5728\u91cd\u8981\u5e73\u53f0\u9077\u79fb\u7684\u524d\u5e7e\u5929\uff0c\u5c31\u4e3b\u52d5\u964d\u4f4e TTL\uff0c\u800c\u4e0d\u662f\u7b49\u7b2c\u4e00\u5305\u6d41\u91cf\u6253\u5411\u65b0\u4f3a\u670d\u5668\u79df\u7528\u6216\u4f3a\u670d\u5668\u8a17\u7ba1\u74b0\u5883\u6642\u624d\u60f3\u8d77\u4f86\u3002<\/li>\n
                                                        • \n \u660e\u78ba\u5beb\u51fa\u4f9d\u8cf4\u7576\u524d TTL \u7b56\u7565\u7684\u56de\u9000\u65b9\u6848\uff0c\u8b93\u503c\u73ed\u4eba\u54e1\u77e5\u9053\u7576\u4e8b\u60c5\u51fa\u932f\u6642\uff0c\u6700\u7cdf\u9700\u8981\u5fcd\u53d7\u591a\u9577\u6642\u9593\u3002<\/li>\n<\/ul>\n

                                                          \n \u4ee5\u9019\u7a2e\u5fc3\u614b\u4f86\u770b\uff0c\u9078\u64c7 300 \u79d2\u4e26\u4e0d\u662f\u6559\u689d\uff0c\u800c\u662f\u4e00\u7a2e\u5718\u968a\u5171\u4eab\u7684\u904b\u7dad\u8a9e\u8a00\uff1a\u6240\u6709\u4eba\u90fd\u6e05\u695a\uff0c\u5728\u95dc\u9375\u8b8a\u66f4\u8996\u7a97\u5167\uff0c\u5feb\u53d6\u6703\u88ab\u523b\u610f\u300c\u62f4\u77ed\u7e69\u300d\uff0c\u56de\u6efe\u5247\u5929\u751f\u5feb\u6377\u3002\n <\/p>\n

                                                          11. \u7e3d\u7d50\uff1a\u628a TTL \u6253\u9020\u6210\u5b89\u5168\u62c9\u687f<\/strong><\/h2>\n<\/h2>\n

                                                          \n \u5c0d\u71df\u904b\u7db2\u969b\u7db2\u8def\u670d\u52d9\u7684\u5de5\u7a0b\u5e2b\u4f86\u8aaa\uff0cDNS \u4e0d\u53ea\u662f\u4f4d\u5740\u89e3\u6790\uff1b\u5b83\u662f\u4f60\u70ba\u6578\u4e0d\u591a\u3001\u53ef\u4ee5\u76f4\u63a5\u5f71\u97ff\u300c\u5916\u90e8\u4e16\u754c\u5c0d\u4f60\u57fa\u790e\u8a2d\u65bd\u8b8a\u5316\u53cd\u61c9\u901f\u5ea6\u300d\u7684\u62c9\u687f\u4e4b\u4e00\u3002\u5728\u771f\u6b63\u5207\u63db\u8a18\u9304\u4e4b\u524d\uff0c\u6709\u610f\u8b58\u5730\u628a\u5feb\u53d6\u6642\u9577\u58d3\u7e2e\u5230\u4e94\u5206\u9418\u7684\u6642\u9593\u5730\u5e73\u7dda\uff0c\u5c31\u7b49\u65bc\u7d66\u81ea\u5df1\u7559\u51fa\u4e86\u4e00\u689d\u53ef\u63a7\u3001\u53ef\u56de\u9000\u7684\u901a\u9053\uff0c\u53bb\u5728\u820a\u7aef\u9ede\u548c\u65b0\u7aef\u9ede\u4e4b\u9593\u8def\u7531\u4f7f\u7528\u8005\u2014\u2014\u7121\u8ad6\u9019\u4e9b\u7aef\u9ede\u662f\u96f2\u4e0a\u7684\u4f3a\u670d\u5668\u79df\u7528\u96c6\u7fa4\u3001\u7cbe\u5fc3\u90e8\u7f72\u5728\u4f3a\u670d\u5668\u8a17\u7ba1\u6a5f\u6ac3\u4e2d\u7684\u5c08\u7528\u4f3a\u670d\u5668\uff0c\u9084\u662f\u5169\u8005\u6df7\u5408\u69cb\u6210\u7684\u6df7\u5408\u62d3\u64b2\u2014\u2014\u800c\u9019\u6b63\u662f\u90a3\u4e9b\u8b39\u614e\u5718\u968a\u5728\u8a2d\u8a08\u5065\u5eb7\u8b8a\u66f4\u9810\u6848\u6642\uff0c\u6703\u6a19\u6e96\u5316\u63a1\u7528\u8af8\u5982 DNS TTL 300 seconds \u9019\u985e\u6a21\u5f0f\u7684\u539f\u56e0\u6240\u5728\u3002\n <\/p>\n","protected":false},"excerpt":{"rendered":"

                                                          \u5982\u679c\u4f60\u6b63\u5728\u70ba\u4e00\u500b\u751f\u7522\u7db2\u57df\u898f\u5283\u8a18\u9304\u8b8a\u66f4\uff0c\u800c\u9019\u500b\u7db2\u57df\u524d\u7aef\u627f\u8f09\u8457\u9ad8\u4f75\u767c API\u3001\u4e00\u500b \u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528 \u96c6\u7fa4\uff0c\u6216\u8005\u4e00\u500b […]<\/p>\n

                                                          Read More…<\/a><\/p>\n","protected":false},"author":1,"featured_media":35761,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4815],"tags":[14238,14239,14240,14241,14242],"class_list":["post-35764","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-america-dedicated-server-tc","tag-dns-ttl-300-seconds","tag-dns-cutover","tag-dns-change-window","tag-low-ttl-strategy","tag-zero-downtime-migration"],"acf":[],"yoast_head":"\n