\u6e96\u5099\u4f3a\u670d\u5668\u8207 DNS \u5b58\u53d6\u6b0a\u9650<\/h3>\n

\u4f60\u9700\u8981\u4e00\u500b\u5df2\u8a3b\u518a\u7684\u7db2\u57df\uff0c\u4e26\u7531\u652f\u63f4\u81ea\u52d5\u5065\u5eb7\u6aa2\u67e5\u548c API \u9a45\u52d5\u66f4\u65b0\u7684\u670d\u52d9\u5546\u9032\u884c\u7ba1\u7406\u3002\u5efa\u8b70\u81f3\u5c11\u898f\u5283\u5169\u53f0\u4f4d\u65bc\u4e0d\u540c\u5340\u57df\u6216\u8cc7\u6599\u4e2d\u5fc3\u7684\u4f3a\u670d\u5668\u3002\u4e00\u53f0\u4f5c\u70ba\u4e3b\u8981\u4f3a\u670d\u5668\uff0c\u53e6\u4e00\u53f0\u5728\u4e3b\u8981\u4f3a\u670d\u5668\u767c\u751f\u554f\u984c\u6642\u63a5\u624b\u670d\u52d9\u3002\u4f60\u4e5f\u9700\u8981\u5b58\u53d6\u670d\u52d9\u5546\u7684\u7ba1\u7406\u63a7\u5236\u53f0\u6216 API\uff0c\u4e26\u5c0d A \u8a18\u9304\u3001CNAME \u8a18\u9304\u4ee5\u53ca TTL \u503c\u6709\u57fa\u672c\u4e86\u89e3\u3002<\/p>\n

\u5728\u5bb9\u932f\u79fb\u8f49\u751f\u6548\u4e4b\u524d\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u4fee\u6539\u67d0\u500b DNS \u4f3a\u670d\u5668\u9805\u76ee\uff0c\u6216\u9a57\u8b49\u73fe\u6709\u8a18\u9304\u3002\u8acb\u6aa2\u67e5\u4f60\u7684\u8def\u7531\u5668\u7ba1\u7406\u4ecb\u9762\uff0c\u4f8b\u5982 192.168.1.1\uff0c\u4e26\u67e5\u770b Windows 11\u3001macOS \u548c Linux \u4e0a\u4f5c\u696d\u7cfb\u7d71\u5c64\u7d1a\u7684 DNS \u8a2d\u5b9a\u3002\u5728 Windows 11 \u4e2d\uff0cDnscache\\Parameters<\/code> \u767b\u9304\u6a5f\u78bc\u4e0b\u7684\u56db\u500b DWORD \u503c\u53ef\u4ee5\u6536\u7dca\u5bb9\u932f\u79fb\u8f49\u884c\u70ba\uff1a<\/p>\n

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

\u767b\u9304\u503c\uff08DWORD\uff09<\/th>\n	\u6578\u503c<\/th>\n	\u7528\u9014<\/th>\n<\/tr>\n
MaxCacheTtl<\/td>\n	1<\/td>\n	\u5c07 DNS \u5feb\u53d6 TTL \u8a2d\u70ba 1 \u79d2<\/td>\n<\/tr>\n
MaxNegativeCacheTtl<\/td>\n	0<\/td>\n	\u9632\u6b62\u5feb\u53d6\u7121\u6548\u9805\u76ee<\/td>\n<\/tr>\n
ServerPriorityTimeLimit<\/td>\n	0<\/td>\n	\u555f\u7528\u56de\u9000\u81f3\u6b21\u8981 DNS \u4f3a\u670d\u5668<\/td>\n<\/tr>\n
ServiceDllUnloadOnStop<\/td>\n	1<\/td>\n	\u5728\u505c\u6b62\u6642\u5378\u8f09 DNS Client \u670d\u52d9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n \u91cd\u65b0\u958b\u6a5f\u5f8c\uff0c\u9019\u4e9b\u8b8a\u66f4\u624d\u6703\u751f\u6548\u3002\u4e4b\u5f8c\uff0c\u7576\u4e3b\u8981 DNS \u4f3a\u670d\u5668\u505c\u6b62\u56de\u61c9\u6642\uff0c\u6b21\u8981 DNS \u4f3a\u670d\u5668\u5e7e\u4e4e\u53ef\u4ee5\u7acb\u5373\u63a5\u624b\u3002<\/p>\n \u5b9a\u7fa9\u5065\u5eb7\u6aa2\u67e5\u7aef\u9ede<\/h3>\n \u4e00\u500b\u53ef\u9760\u7684\u5065\u5eb7\u6aa2\u67e5\u7aef\u9ede\u61c9\u9a57\u8b49\u771f\u5be6\u7684\u61c9\u7528\u7a0b\u5f0f\u5065\u5eb7\u72c0\u614b\uff0c\u800c\u4e0d\u53ea\u662f\u56de\u50b3\u4e00\u500b 200 \u72c0\u614b\u78bc\u3002\u5b83\u61c9\u78ba\u8a8d\u8cc7\u6599\u5eab\u9023\u7dda\u3001\u5feb\u53d6\u53ef\u7528\u6027\u4ee5\u53ca\u95dc\u9375\u76f8\u4f9d\u9805\u662f\u5426\u6b63\u5e38\u3002\u5c0d\u65bc HTTP \u6aa2\u67e5\uff0c\u8acb\u6c42\u985e\u4f3c \/health<\/code> \u7684\u7279\u5b9a\u8def\u5f91\uff0c\u9810\u671f\u56de\u50b3 2xx \u6216 3xx \u72c0\u614b\u78bc\uff0c\u4e26\u5c07\u903e\u6642\u6642\u9593\u8a2d\u70ba 5\u201310 \u79d2\u3002\u5c0d\u65bc HTTPS\uff0c\u8acb\u9a57\u8b49 TLS \u63e1\u624b\uff0c\u4e26\u53ef\u9078\u64c7\u5f37\u5236\u9a57\u8b49\u6191\u8b49\u6709\u6548\u6027\u3002\u5c0d\u65bc TCP\uff0c\u8acb\u78ba\u8a8d\u9023\u63a5\u57e0\u80fd\u5728\u903e\u6642\u6642\u9593\u5167\u63a5\u53d7\u9023\u7dda\u3002<\/p>\n \u4f7f\u7528\u591a\u500b\u5065\u5eb7\u6aa2\u67e5\u4f4d\u7f6e\u53ef\u4ee5\u907f\u514d\u56e0\u7db2\u8def\u554f\u984c\u5c0e\u81f4\u8aa4\u5224\u3002\u8acb\u5728\u5bb9\u932f\u79fb\u8f49\u89f8\u767c\u524d\u5148\u76e3\u63a7\u72c0\u614b\u4e26\u5c0d\u6545\u969c\u767c\u51fa\u8b66\u793a\u3002\u5b9a\u671f\u6e2c\u8a66\u5bb9\u932f\u79fb\u8f49\uff0c\u4f8b\u5982\u6bcf\u5b63\u9032\u884c\u4e00\u6b21\u6f14\u7df4\uff0c\u4e26\u8a18\u9304\u4eba\u5de5\u8655\u7406\u7a0b\u5e8f\u3002\u5982\u679c\u4f60\u8a08\u756b\u4e4b\u5f8c\u8b8a\u66f4 DNS \u4f3a\u670d\u5668\u8a2d\u5b9a\uff0c\u8acb\u4fdd\u6301\u9019\u4e9b\u8a18\u9304\u70ba\u6700\u65b0\uff0c\u4ee5\u78ba\u4fdd\u4f60\u7684\u81ea\u8a02 DNS \u4f3a\u670d\u5668\u548c DNS \u4f3a\u670d\u5668\u4f4d\u5740\u5728\u6574\u500b\u7db2\u8def\u4e2d\u59cb\u7d42\u6e96\u78ba\u3002<\/p>\n \u5982\u4f55\u8a2d\u5b9a\u81ea\u52d5 DNS \u89e3\u6790\u5207\u63db<\/strong><\/h2>\n \u81ea\u5efa DNS \u65b9\u6848<\/h3>\n \u7576\u4f60\u5728\u81ea\u5df1\u7684\u786c\u9ad4\u4e0a\u8a2d\u5b9a\u81ea\u52d5 DNS \u89e3\u6790\u5207\u63db\u6642\uff0cBIND \u53ef\u4ee5\u63d0\u4f9b\u5b8c\u6574\u63a7\u5236\u3002\u9996\u5148\u4f7f\u7528 rndc-confgen -a -b 512 -r \/dev\/urandom<\/code> \u7522\u751f rndc \u9a57\u8b49\u91d1\u9470\uff0c\u8a72\u6307\u4ee4\u6703\u5c07\u91d1\u9470\u5beb\u5165 \/etc\/rndc.key<\/code>\u3002\u53ef\u900f\u904e\u5c07\u8a72\u6a94\u6848\u7684\u64c1\u6709\u8005\u8a2d\u5b9a\u70ba root:named<\/code>\u3001\u6b0a\u9650\u8a2d\u5b9a\u70ba 0640<\/code> \u4f86\u5f37\u5316\u5176\u5b89\u5168\u6027\u3002\u5728\u4e3b\u8981\u8a2d\u5b9a\u6a94 named.conf<\/code> \u4e2d\uff0c\u8f09\u5165 rndc \u91d1\u9470\u6a94\uff0c\u4e26\u5b9a\u7fa9\u4e00\u500b controls<\/code> \u5340\u584a\uff0c\u5141\u8a31\u5728 127.0.0.1<\/code> \u7684 953<\/code> \u9023\u63a5\u57e0\u4e0a\u4f7f\u7528 rndc-key<\/code> \u9032\u884c rndc \u7ba1\u7406\u3002\u5b9a\u7fa9\u4e3b\u5340\u57df\u6642\uff0c\u4f7f\u7528 allow-update { key rndc-key; };<\/code> \u548c notify yes;<\/code>\uff0c\u4ee5\u4fbf\u52d5\u614b\u66f4\u65b0\u901a\u904e\u9a57\u8b49\u3002\u5728\u5f9e\u5c6c\u4f3a\u670d\u5668\u4e0a\uff0c\u63a5\u53d7\u4f86\u81ea\u4e3b\u4f3a\u670d\u5668\u7684\u5340\u57df\u50b3\u9001\uff0c\u4e26\u4f7f\u7528\u76f8\u540c\u91d1\u9470\u5141\u8a31\u66f4\u65b0\u3002\u7de8\u8f2f\u52d5\u614b\u5340\u57df\u6a94\u524d\uff0c\u5148\u57f7\u884c rndc freeze <zone><\/code>\uff0c\u7136\u5f8c\u57f7\u884c rndc reload <zone><\/code> \u548c rndc thaw <zone><\/code> \u4ee5\u91cd\u65b0\u555f\u7528\u66f4\u65b0\u3002\u4f7f\u7528 nsupdate -k \/etc\/rndc.key<\/code> \u53ef\u5728\u7121\u9700\u91cd\u65b0\u555f\u52d5\u7684\u60c5\u6cc1\u4e0b\u9032\u884c\u5373\u6642\u4fee\u6539\uff0c\u4e26\u900f\u904e named-checkconf<\/code>\u3001named-checkzone<\/code> \u548c rndc status<\/code> \u9a57\u8b49\u4e00\u5207\u662f\u5426\u6b63\u5e38\u3002<\/p>\n \u300cHi Tarwan\uff0c\u4e5f\u8a31 failover \u4e0d\u662f\u63cf\u8ff0\u5b83\u7684\u6700\u4f73\u8a5e\u5f59\u3002\u7528 master-slave replication \u53ef\u80fd\u66f4\u8cbc\u5207\u3002\u4f60\u4ecd\u7136\u80fd\u5f9e\u66f4\u9ad8\u7684\u53ef\u7528\u6027\u4e2d\u53d7\u76ca\uff0c\u56e0\u70ba\u5982\u679c\u4f60\u7684 master \u7576\u6a5f\uff0cslave \u64c1\u6709\u6240\u6709\u8a18\u9304\uff0c\u4e26\u4e14\u53ef\u4ee5\u7e7c\u7e8c\u63d0\u4f9b\u670d\u52d9\u3002\u300d<\/p><\/blockquote>\n \u5c0d\u65bc\u66f4\u8f15\u91cf\u7684\u90e8\u7f72\uff0cdnsmasq \u642d\u914d\u5065\u5eb7\u6aa2\u67e5\u8173\u672c\u4e5f\u5f88\u9069\u5408\u3002\u4f60\u7684\u8173\u672c\u6703\u63a2\u6e2c\u4e3b\u8981\u4f3a\u670d\u5668\uff0c\u7136\u5f8c\u5728\u63a2\u6e2c\u5931\u6557\u6642\u91cd\u5beb dnsmasq \u7684 hosts \u9805\u76ee\u4e26\u767c\u9001 SIGHUP \u8a0a\u865f\u3002\u9019\u6a23\u53ef\u4ee5\u8b93\u5207\u63db\u904e\u7a0b\u4fdd\u6301\u5728\u672c\u6a5f\u7aef\u4e14\u8db3\u5920\u8fc5\u901f\u3002<\/p>\n \u96f2\u7aef DNS \u5bb9\u932f\u79fb\u8f49\u8def\u7531<\/h3>\n AWS Route 53 \u4ee5\u4e0d\u540c\u65b9\u5f0f\u8655\u7406\u5bb9\u932f\u79fb\u8f49\u3002\u5b83\u4e0d\u6703\u91cd\u5beb\u5df2\u5132\u5b58\u7684\u8a18\u9304\uff0c\u800c\u662f\u5728\u67e5\u8a62\u6642\u505a\u51fa\u8def\u7531\u6c7a\u7b56\u3002\u4f60\u53ef\u4ee5\u70ba\u6bcf\u500b\u8cc7\u6e90\u5efa\u7acb\u5065\u5eb7\u6aa2\u67e5\uff0c\u6216\u8005\u5c0d\u5225\u540d\u8a18\u9304\u5c07 Evaluate Target Health \u8a2d\u70ba Yes\u3002\u63a5\u8457\u5efa\u7acb\u4e3b\u8981\u8a18\u9304\u548c\u5099\u63f4\u8a18\u9304\uff0c\u5b83\u5011\u9700\u8981\u5177\u5099\u76f8\u540c\u7684\u540d\u7a31\u3001\u985e\u578b\u548c\u8def\u7531\u7b56\u7565\uff0c\u4e26\u5206\u5225\u7d81\u5b9a\u5404\u81ea\u7684\u5065\u5eb7\u6aa2\u67e5\u3002\u5c07 Routing Policy \u8a2d\u70ba Failover\uff0c\u4e26\u6307\u5b9a Primary \u8207 Secondary \u8a18\u9304\u985e\u578b\u3002\u7576\u5065\u5eb7\u6aa2\u67e5\u56de\u5831\u4e3b\u8981\u8cc7\u6e90\u4e0d\u5065\u5eb7\u6642\uff0cRoute 53 \u6703\u4ee5\u5065\u5eb7\u7684\u5099\u63f4\u8a18\u9304\u56de\u61c9\u67e5\u8a62\u3002\u4f60\u53ef\u4ee5\u900f\u904e CloudWatch \u6307\u6a19\uff08\u4f8b\u5982 HealthCheckStatus \u548c HealthCheckPercentageHealthy\uff09\u4ee5\u53ca\u8b66\u793a\u3001Lambda \u6aa2\u67e5\u548c EventBridge \u898f\u5247\u4f86\u76e3\u63a7\u9019\u500b\u6d41\u7a0b\u3002<\/p>\n Azure \u5c07\u9019\u9805\u5de5\u4f5c\u62c6\u958b\u8655\u7406\u3002Azure DNS \u672c\u8eab\u4e0d\u63d0\u4f9b\u5065\u5eb7\u6aa2\u67e5\uff0c\u56e0\u6b64\u4f60\u9700\u8981\u518d\u642d\u914d Traffic Manager \u4f5c\u70ba\u7b2c\u4e8c\u9805\u670d\u52d9\u4f86\u5be6\u73fe\u5bb9\u932f\u79fb\u8f49\u8def\u7531\u3002<\/p>\n \n\n\n\n\n<\/colgroup>\n\n\n\n\n\n \u6bd4\u8f03\u9805\u76ee<\/th>\n AWS Route 53<\/th>\n Azure Traffic Manager<\/th>\n<\/tr>\n \u670d\u52d9\u6a21\u578b<\/td>\n \u6574\u5408\u5f0f DNS\u3001\u5065\u5eb7\u6aa2\u67e5\u8207\u8def\u7531<\/td>\n \u7368\u7acb\u7684\u8def\u7531\u670d\u52d9<\/td>\n<\/tr>\n \u5bb9\u932f\u79fb\u8f49\u8def\u7531<\/td>\n \u5167\u5efa\u5bb9\u932f\u79fb\u8f49\u7b56\u7565<\/td>\n \u512a\u5148\u9806\u5e8f\u8def\u7531\u65b9\u5f0f<\/td>\n<\/tr>\n DNS \u4ee3\u7ba1<\/td>\n Route 53 \u662f\u6b0a\u5a01 DNS<\/td>\n \u9700\u8981 Azure DNS<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n \u5982\u679c\u4f60\u5728\u7528\u6236\u7aef\u8b8a\u66f4\u67d0\u500b DNS \u4f3a\u670d\u5668\u9805\u76ee\u6216\u8b8a\u66f4 DNS \u4f3a\u670d\u5668\u8a2d\u5b9a\uff0c\u89e3\u6790\u512a\u5148\u9806\u5e8f\u4e5f\u53d6\u6c7a\u65bc\u4ecb\u9762\u5ea6\u91cf\u503c\u4ee5\u53ca DNS \u4f3a\u670d\u5668\u9806\u5e8f\u3002\u5728\u6b63\u5f0f\u74b0\u5883\u4e2d\u8b8a\u66f4 DNS \u4f3a\u670d\u5668\u4e4b\u524d\uff0c\u8acb\u5148\u898f\u5283\u597d\u9019\u4e9b\u56e0\u7d20\uff0c\u4e26\u8a18\u9304\u6574\u500b\u7db2\u8def\u4e2d\u6bcf\u4e00\u9805\u8207\u8b8a\u66f4 DNS \u4f3a\u670d\u5668\u76f8\u95dc\u7684\u8abf\u6574\u3002<\/strong><\/p>\n \u5065\u5eb7\u6aa2\u67e5\u8207\u5207\u63db\u908f\u8f2f<\/strong><\/h2>\n \u9078\u64c7 DNS \u5065\u5eb7\u6aa2\u67e5\u63a2\u91dd<\/h3>\n \u4f60\u9078\u64c7\u7684\u63a2\u91dd\u985e\u578b\u6c7a\u5b9a\u4e86\u5065\u5eb7\u6aa2\u67e5\u5be6\u969b\u80fd\u767c\u73fe\u4ec0\u9ebc\u554f\u984c\u3002Ping\uff08ICMP\uff09\u53ef\u4ee5\u78ba\u8a8d\u4e3b\u6a5f\u7684\u57fa\u672c\u53ef\u9054\u6027\uff0c\u4f46\u9632\u706b\u7246\u7d93\u5e38\u6703\u963b\u64cb\u5b83\uff0c\u800c\u4e14\u5b83\u7121\u6cd5\u8b49\u660e\u61c9\u7528\u7a0b\u5f0f\u672c\u8eab\u6b63\u5e38\u904b\u4f5c\u3002\u9023\u63a5\u57e0\uff08TCP\uff09\u6aa2\u67e5\u53ef\u4ee5\u78ba\u8a8d\u67d0\u500b\u670d\u52d9\u9023\u63a5\u57e0\u662f\u5426\u63a5\u53d7\u9023\u7dda\uff0c\u4f46\u7121\u6cd5\u5224\u65b7\u61c9\u7528\u7a0b\u5f0f\u908f\u8f2f\u662f\u5426\u6b63\u5e38\u3002HTTP(S) \u63a2\u91dd\u6703\u8acb\u6c42\u50cf \/health<\/code> \u9019\u6a23\u7684\u8def\u5f91\uff0c\u4e26\u9810\u671f\u7372\u5f97 2xx \u6216 3xx \u72c0\u614b\u78bc\uff0c\u56e0\u6b64\u5b83\u662f Web \u670d\u52d9\u6700\u6709\u529b\u7684\u5065\u5eb7\u8a0a\u865f\u3002\u5c07 ICMP \u8207 TCP \u6216 HTTP(S) \u7d50\u5408\u4f7f\u7528\uff0c\u4f60\u5c31\u80fd\u540c\u6642\u6355\u6349\u7db2\u8def\u5c64\u8207\u670d\u52d9\u5c64\u7684\u6545\u969c\u3002<\/p>\n \n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n \u63a2\u91dd\u985e\u578b<\/th>\n \u5178\u578b\u4f7f\u7528\u60c5\u5883<\/th>\n \u9650\u5236<\/th>\n \u5efa\u8b70\u642d\u914d<\/th>\n<\/tr>\n Ping\uff08ICMP\uff09<\/td>\n \u9a57\u8b49\u4e3b\u6a5f\u7684\u7db2\u8def\u53ef\u9054\u6027<\/td>\n \u53ef\u80fd\u88ab\u9632\u706b\u7246\u6216 ICMP \u904e\u6ffe\u963b\u64cb\uff1b\u7121\u6cd5\u78ba\u8a8d\u61c9\u7528\u7a0b\u5f0f\u53ef\u7528\u6027<\/td>\n \u8207 HTTP(S) \u6216\u9023\u63a5\u57e0\uff08TCP\uff09\u642d\u914d\uff0c\u4ee5\u6aa2\u6e2c\u670d\u52d9\u5c64\u6545\u969c<\/td>\n<\/tr>\n \u9023\u63a5\u57e0\uff08TCP\uff09<\/td>\n \u6aa2\u67e5\u6307\u5b9a\u670d\u52d9\u9023\u63a5\u57e0\u662f\u5426\u958b\u555f\u4e26\u63a5\u53d7\u9023\u7dda<\/td>\n \u7121\u6cd5\u9a57\u8b49\u61c9\u7528\u7a0b\u5f0f\u908f\u8f2f\u6216\u5167\u5bb9\u5c64\u932f\u8aa4<\/td>\n \u7d50\u5408 Ping\uff08\u7528\u65bc\u7db2\u8def\u5c64\uff09\u6216 HTTP(S)\uff08\u7528\u65bc\u61c9\u7528\u5c64\uff09<\/td>\n<\/tr>\n HTTP(S)<\/td>\n \u6aa2\u67e5\u7db2\u7ad9\u3001API \u6216 Web \u61c9\u7528\u7a0b\u5f0f\u7684\u53ef\u7528\u6027\u8207\u56de\u61c9\u72c0\u614b\u78bc<\/td>\n \u7121\u6cd5\u6aa2\u6e2c DNS \u554f\u984c\u3001\u7db2\u8def\u5c64\u6545\u969c\u6216 SSL \u6191\u8b49\u904e\u671f<\/td>\n \u8207 DNS\uff08\u7528\u65bc\u89e3\u6790\uff09\u53ca SSL\/TLS\uff08\u7528\u65bc\u6191\u8b49\u5065\u5eb7\uff09\u642d\u914d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n \u6642\u9593\u53c3\u6578\u6c7a\u5b9a\u4e86\u6aa2\u6e2c\u901f\u5ea6\u3002\u8acb\u6839\u64da\u4f60\u671f\u671b\u7684\u6062\u5fa9\u6642\u9593\u4f86\u8a2d\u5b9a\u5065\u5eb7\u6aa2\u67e5\u9593\u9694\uff0c\u4ee5\u53ca\u89f8\u767c\u5bb9\u932f\u79fb\u8f49\u524d\u6240\u9700\u7684\u9023\u7e8c\u5931\u6557\u6b21\u6578\u3002\u5e38\u898b\u505a\u6cd5\u662f\u8a2d\u5b9a\u4e00\u500b\u5728\u5feb\u901f\u6aa2\u6e2c\u8207\u6e1b\u5c11\u8aa4\u5224\u4e4b\u9593\u53d6\u5f97\u5e73\u8861\u7684\u5931\u6557\u95be\u503c\u3002<\/p>\n \u63a2\u91dd\u6703\u900f\u904e HTTP\u3001HTTPS\u3001TCP \u6216 ICMP\uff0c\u4ee5\u53ef\u8a2d\u5b9a\u7684\u9593\u9694\u6e2c\u8a66\u6bcf\u500b\u7aef\u9ede\uff0c\u4e26\u53ef\u63d0\u4f9b\u66f4\u5feb\u7684\u6aa2\u67e5\u9593\u9694\u3002\u6aa2\u67e5\u6703\u540c\u6642\u5f9e\u591a\u500b\u5340\u57df\u767c\u8d77\uff0c\u56e0\u6b64\u55ae\u4e00\u8def\u5f91\u4e0a\u7684\u7db2\u8def\u4e0d\u7a69\u4e0d\u6703\u89f8\u767c\u8aa4\u5207\u63db\u3002<\/p><\/blockquote>\n \u91cd\u8a66\u6a5f\u5236\u9084\u589e\u52a0\u4e86\u4e00\u5c64\u4fdd\u969c\u3002\u4f60\u53ef\u4ee5\u8a2d\u5b9a\u591a\u5c11\u6b21\u9023\u7e8c\u5931\u6557\u5f8c\u5c07\u88dd\u7f6e\u6a19\u8a18\u70ba\u96e2\u7dda\uff0c\u4ee5\u53ca\u591a\u5c11\u6b21\u9023\u7e8c\u6210\u529f\u5f8c\u5c07\u5176\u6062\u5fa9\u4e0a\u7dda\u3002\u9019\u4e9b\u53c3\u6578\u5c07\u6c7a\u5b9a\u5bb9\u932f\u79fb\u8f49\u8207\u6062\u5fa9\u6240\u9700\u7684\u6642\u9593\u3002<\/p>\n \u81ea\u52d5\u5316\u8a18\u9304\u66f4\u65b0\u8207 TTL<\/h3>\n \u81ea\u52d5\u5316\u6703\u7528 API \u547c\u53eb\u53d6\u4ee3\u4eba\u5de5\u5728\u63a7\u5236\u53f0\u4e2d\u7684\u4fee\u6539\uff0c\u56e0\u6b64\u6bcf\u4e00\u6b21\u8b8a\u66f4\u90fd\u80fd\u540c\u6b65\u5230\u6240\u6709\u5e73\u53f0\u3002\u8acb\u4f7f\u7528 DNS \u670d\u52d9\u5546\u63d0\u4f9b\u7684 API\uff08REST\u3001Terraform \u6216 SDK\uff09\u4f86\u81ea\u52d5\u4fee\u6539\u8a18\u9304\uff0c\u4e26\u5957\u7528\u4ee5\u89d2\u8272\u70ba\u57fa\u790e\u7684\u5b58\u53d6\u63a7\u5236\uff0c\u540c\u6642\u4fdd\u7559\u7a3d\u6838\u65e5\u8a8c\u3002\u5728\u5404\u500b\u6b0a\u5a01\u526f\u672c\u4e4b\u9593\u8907\u5beb\u5340\u57df\u5167\u5bb9\uff0c\u4ee5\u78ba\u4fdd\u5728\u5bb9\u932f\u79fb\u8f49\u767c\u751f\u524d\uff0c\u5099\u63f4\u56de\u61c9\u5df2\u7d93\u6e96\u5099\u5c31\u7dd2\u3002<\/p>\n TTL \u6c7a\u5b9a\u4e86\u89e3\u6790\u5668\u6703\u4fe1\u4efb\u4e00\u500b\u56de\u61c9\u591a\u4e45\u3002\u8f03\u4f4e\u7684 TTL \u6709\u52a9\u65bc\u66f4\u5feb\u5b8c\u6210\u5bb9\u932f\u79fb\u8f49\u3002\u5728\u8a08\u756b\u4e2d\u7684\u8b8a\u66f4\u4e4b\u524d\uff0c\u61c9\u63d0\u524d\u8db3\u5920\u6642\u9593\u964d\u4f4e TTL\uff0c\u4ee5\u4fbf\u820a\u7684\u5feb\u53d6\u56de\u61c9\u904e\u671f\u3002\u67d0\u4e9b\u89e3\u6790\u5668\u6703\u5f37\u5236\u57f7\u884c 30 \u79d2\u7684\u6700\u5c0f\u4e0b\u9650\uff0c\u56e0\u6b64\u4f4e\u65bc\u9019\u500b\u503c\u4e26\u4e0d\u80fd\u88ab\u7a69\u5b9a\u9075\u5faa\u3002<\/p>\n \u4ecb\u9762\u5ea6\u91cf\u503c\u548c DNS \u4f3a\u670d\u5668\u9806\u5e8f\u4e5f\u6703\u6c7a\u5b9a\u89e3\u6790\u512a\u5148\u9806\u5e8f\u3002\u7576\u4f60\u8a2d\u5b9a\u81ea\u52d5 DNS \u89e3\u6790\u5207\u63db\u6642\uff0c\u8acb\u5728\u6295\u5165\u6b63\u5f0f\u74b0\u5883\u524d\u898f\u5283\u597d\u9019\u4e9b\u56e0\u7d20\u3002\u4e00\u500b\u8a2d\u5b9a\u4e86\u5169\u500b DNS \u9805\u76ee\u7684\u7528\u6236\u7aef\u6703\u512a\u5148\u67e5\u8a62\u6e05\u55ae\u4e2d\u7684\u7b2c\u4e00\u500b\u4f3a\u670d\u5668\uff0c\u800c\u5728\u591a\u5bbf\u4e3b\u4e3b\u6a5f\u4e0a\uff0c\u4ecb\u9762\u5ea6\u91cf\u503c\u6703\u7528\u4f86\u6253\u7834\u512a\u5148\u9806\u5e8f\u5e73\u624b\u3002\u8acb\u8a18\u9304\u6bcf\u4e00\u9805\u8b8a\u66f4 DNS \u4f3a\u670d\u5668\u6240\u9700\u7684\u8abf\u6574\uff0c\u4e26\u5728\u6574\u500b\u7db2\u8def\u4e2d\u4fdd\u6301\u9023\u7dda\u8a18\u9304\u70ba\u6700\u65b0\u72c0\u614b\u3002<\/p>\n \u6e2c\u8a66\u4e26\u9a57\u8b49\u5bb9\u932f\u79fb\u8f49<\/strong><\/h2>\n \u6a21\u64ec\u6545\u969c\u4e26\u67e5\u770b\u65e5\u8a8c<\/h3>\n \u5982\u679c\u4f60\u5f9e\u672a\u771f\u6b63\u89f8\u767c\u904e\u5bb9\u932f\u79fb\u8f49\uff0c\u5c31\u4e0d\u80fd\u771f\u6b63\u4fe1\u4efb\u9019\u5957\u65b9\u6848\u3002\u505c\u6b62\u4e3b\u8981\u670d\u52d9\u3001\u963b\u64cb\u5176\u5065\u5eb7\u6aa2\u67e5\u9023\u63a5\u57e0\uff0c\u6216\u62d4\u6389\u5b83\u7684\u7db2\u8def\u9023\u7dda\u3002\u89c0\u5bdf DNS \u8a18\u9304\u9700\u8981\u591a\u4e45\u624d\u6703\u5207\u63db\u5230\u5099\u63f4\u4f3a\u670d\u5668\u3002\u7136\u5f8c\u6aa2\u67e5\u670d\u52d9\u5546\u65e5\u8a8c\u6216 BIND \u67e5\u8a62\u65e5\u8a8c\uff0c\u78ba\u8a8d\u5207\u63db\u767c\u751f\u7684\u6e96\u78ba\u6642\u9593\u9ede\u3002<\/p>\n \u63a5\u8457\u67e5\u770b\u5065\u5eb7\u6aa2\u67e5\u6b77\u53f2\u3002\u7559\u610f\u5931\u6557\u6b21\u6578\u3001\u6642\u9593\u6233\u8a18\u4ee5\u53ca\u6062\u5fa9\u4e8b\u4ef6\u3002\u4e7e\u6de8\u7684\u65e5\u8a8c\u61c9\u53ea\u986f\u793a\u4e00\u6b21\u6e05\u695a\u7684\u72c0\u614b\u8f49\u63db\uff1b\u800c\u6df7\u4e82\u7684\u65e5\u8a8c\u5247\u8868\u793a\u51fa\u73fe\u6296\u52d5\uff0c\u9019\u4ee3\u8868\u4f60\u7684\u95be\u503c\u8a2d\u5b9a\u904e\u65bc\u654f\u611f\u3002\u8acb\u4f9d\u8a08\u756b\u91cd\u8907\u6f14\u7df4\uff0c\u4e26\u8a18\u9304\u6bcf\u500b\u6b65\u9a5f\u82b1\u4e86\u591a\u5c11\u6642\u9593\u3002<\/p>\n \u9a57\u8b49\u8b8a\u66f4 DNS \u4f3a\u670d\u5668\u8a2d\u5b9a<\/h3>\n \u7528\u6236\u7aef\u884c\u70ba\u6c7a\u5b9a\u4e86\u5bb9\u932f\u79fb\u8f49\u662f\u5426\u771f\u7684\u80fd\u5e6b\u52a9\u4f7f\u7528\u8005\u3002\u5728 Windows 11 \u4e0a\uff0c\u624b\u52d5\u6307\u5b9a\u4e00\u500b DNS \u9805\u76ee\uff0c\u4e26\u78ba\u8a8d\u89e3\u6790\u5668\u78ba\u5be6\u4f7f\u7528\u4e86\u65b0\u7684 DNS \u4f3a\u670d\u5668\u4f4d\u5740\u3002\u5728 macOS \u4e0a\uff0c\u53ef\u4ee5\u900f\u904e\u7d42\u7aef\u6a5f\u4e2d\u7684 networksetup<\/code> \u6307\u4ee4\u8a2d\u5b9a DNS \u4f3a\u670d\u5668\u4e26\u9a57\u8b49\u8b8a\u66f4\u3002<\/p>\n \u4f60\u4e5f\u53ef\u4ee5\u5728 Cisco \u4ea4\u63db\u5668\u4e0a\u8b8a\u66f4 DNS \u4f3a\u670d\u5668\uff0c\u4e26\u5c07\u8a18\u9304\u5c0d\u61c9\u5230\u6b63\u78ba\u7684\u4e3b\u6a5f\u3002\u6bcf\u6b21\u8b8a\u66f4\u5f8c\uff0c\u90fd\u61c9\u6e05\u9664\u5feb\u53d6\u4e26\u518d\u6b21\u67e5\u8a62\u8a72\u540d\u7a31\u3002\u78ba\u8a8d\u56de\u50b3\u7d50\u679c\u6307\u5411\u5065\u5eb7\u7684\u4f3a\u670d\u5668\uff0c\u540c\u6642\u6aa2\u67e5\u90a3\u4e9b\u4ecd\u7531 DHCP \u7ba1\u7406\u7684\u7528\u6236\u7aef\u662f\u5426\u4f9d\u820a\u81ea\u52d5\u53d6\u5f97 DNS \u4f3a\u670d\u5668\u4f4d\u5740\u3002\u5728\u5ba3\u544a\u6e2c\u8a66\u5b8c\u6210\u4e4b\u524d\uff0c\u8acb\u5f9e\u591a\u500b\u7db2\u8def\u8def\u5f91\u9a57\u8b49\u9023\u901a\u6027\u3002<\/p>\n \n <\/div>\n<\/div>\n \u73fe\u5728\u4f60\u5df2\u7d93\u638c\u63e1\u5b8c\u6574\u6d41\u7a0b\uff1a\u6e96\u5099\u4f3a\u670d\u5668\u8207 DNS \u5b58\u53d6\u6b0a\u9650\u3001\u9078\u64c7\u81ea\u5efa\u6216\u96f2\u7aef\u65b9\u6848\u3001\u5b9a\u7fa9\u5065\u5eb7\u6aa2\u67e5\u63a2\u91dd\u3001\u8abf\u6574\u5207\u63db\u908f\u8f2f\uff0c\u7136\u5f8c\u9a57\u8b49\u7d50\u679c\u3002\u81ea\u52d5\u5316\u80fd\u8b93\u4f60\u7684 DNS \u56de\u61c9\u4fdd\u6301\u6e96\u78ba\uff0c\u4e26\u52a0\u5feb\u4e8b\u6545\u61c9\u8b8a\u901f\u5ea6\u3002<\/p>\n \u8acb\u900f\u904e\u4ee5\u4e0b\u7fd2\u6163\u4f86\u7dad\u8b77\u9019\u5957\u8a2d\u5b9a\uff1a<\/p>\n \n \u6bcf\u6b21\u6545\u969c\u5f8c\u91cd\u65b0\u6aa2\u8996\u5065\u5eb7\u6aa2\u67e5\u95be\u503c\u3002<\/li>\n \u95dc\u6ce8 TTL \u5c0d\u50b3\u64ad\u901f\u5ea6\u7684\u5f71\u97ff\u3002<\/li>\n \u4fdd\u8b77 DNS \u6191\u8b49\u8207 API \u91d1\u9470\u5b89\u5168\u3002<\/li>\n \u5728\u57fa\u790e\u67b6\u69cb\u8b8a\u66f4\u5f8c\u91cd\u65b0\u6e2c\u8a66\u5bb9\u932f\u79fb\u8f49\u3002<\/li>\n<\/ul>\n 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