\u901a\u4fd7\u7406\u89e3 DNS \u6295\u6bd2<\/strong><\/h2>\n

\u6b63\u5e38\u7684 DNS \u67e5\u8a62\u662f\u600e\u9ebc\u904b\u4f5c\u7684<\/h3>\n

\u6bcf\u6b21\u4f60\u8f38\u5165\u4e00\u500b\u7db2\u5740\uff0c\u88dd\u7f6e\u90fd\u6703\u5411 DNS \u89e3\u6790\u5668\uff08DNS resolver\uff09\u8acb\u6c42\u9019\u500b\u7db2\u7ad9\u5c0d\u61c9\u7684\u6578\u5b57\u4f4d\u5740\uff08IP\uff09\u3002\u9019\u500b\u904e\u7a0b\u53eb\u505a DNS \u89e3\u6790\uff08DNS resolution\uff09\u3002\u4e00\u6b21\u6b63\u5e38\u7684 DNS \u67e5\u8a62\u901f\u5ea6\u975e\u5e38\u5feb\uff0c\u5728\u7db2\u8def\u72c0\u6cc1\u826f\u597d\u7684\u60c5\u6cc1\u4e0b\uff0c\u591a\u6578\u8acb\u6c42\u90fd\u6703\u5728 20\u2013120 \u6beb\u79d2\u5167\u5b8c\u6210\u3002\u7576\u5ef6\u9072\u9054\u5230 150 \u6beb\u79d2\u4ee5\u4e0a\u6642\uff0c\u4f60\u5c31\u6703\u958b\u59cb\u611f\u89ba\u5230\u8b8a\u6162\uff0c\u800c\u8d85\u904e 200 \u6beb\u79d2\u5c31\u503c\u5f97\u4ed4\u7d30\u6392\u67e5\u4e86\u3002<\/p>\n

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

\u6548\u80fd\u7b49\u7d1a<\/th>\n	\u5178\u578b DNS \u67e5\u8a62\u6642\u9577<\/th>\n<\/tr>\n
\u5feb\u901f\u4e14\u53cd\u61c9\u9748\u654f\u7684\u9023\u7dda<\/td>\n	20\u2013120 ms<\/td>\n<\/tr>\n
\u958b\u59cb\u51fa\u73fe\u660e\u986f\u5ef6\u9072<\/td>\n	150 ms \u4ee5\u4e0a<\/td>\n<\/tr>\n
\u9ad4\u9a57\u660e\u986f\u5361\u9813<\/td>\n	300 ms \u6216\u66f4\u591a<\/td>\n<\/tr>\n
\u503c\u5f97\u9032\u4e00\u6b65\u6392\u67e5\u7684\u9580\u6abb<\/td>\n	\u8d85\u904e 200 ms<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n \u4f60\u7684\u88dd\u7f6e\u6703\u628a\u8fd1\u671f\u7684 DNS \u89e3\u6790\u7d50\u679c\u5feb\u53d6\u5728 DNS \u5feb\u53d6\u4e2d\uff0c\u4ee5\u4fbf\u4e0b\u6b21\u9020\u8a2a\u540c\u4e00\u7db2\u7ad9\u53ef\u4ee5\u66f4\u5feb\u3002\u9019\u4e9b\u5feb\u53d6\u8a18\u9304\u5982\u679c\u662f\u6b63\u78ba\u7684\uff0c\u5c31\u6703\u628a\u700f\u89bd\u5668\u6307\u5411\u771f\u6b63\u7684\u4f3a\u670d\u5668\uff1b\u5982\u679c\u6709\u4eba\u7ac4\u6539\uff0c\u628a\u6b63\u78ba\u8a18\u9304\u63db\u6210\u5047\u7684\u4f4d\u5740\uff0c\u4f60\u7684\u700f\u89bd\u5668\u5c31\u6703\u88ab\u6307\u5411\u932f\u8aa4\u7684\u5730\u65b9\uff0c\u6216\u8005\u300c\u7121\u8655\u53ef\u53bb\u300d\uff0c\u9019\u5c31\u662f DNS \u6295\u6bd2\u7834\u58de\u4fe1\u4efb\u93c8\u7684\u65b9\u5f0f\u3002\u55ae\u7d14\u7684\u67e5\u8a62\u8b8a\u6162\u6703\u8b93\u4f60\u611f\u89ba\u50cf\u662f\u7db2\u7ad9\u58de\u4e86\uff0c\u4f46\u5f88\u591a\u6642\u5019\u771f\u6b63\u7684\u554f\u984c\u4e0d\u5728\u901f\u5ea6\uff0c\u800c\u5728\u300c\u7b54\u6848\u662f\u4e0d\u662f\u5c0d\u7684\u300d\u3002<\/p>\n DNS \u5feb\u53d6\u6295\u6bd2\u5177\u9ad4\u505a\u4e86\u4ec0\u9ebc<\/h3>\n DNS \u5feb\u53d6\u6295\u6bd2\uff08DNS cache poisoning\uff09\u5c31\u662f\u7528\u932f\u8aa4\u7b54\u6848\u53d6\u4ee3\u6b63\u78ba\u7b54\u6848\u3002\u653b\u64ca\u8005\u5411 DNS \u5feb\u53d6\u4e2d\u63d2\u5165\u865b\u5047\u7684\u8a18\u9304\uff0c\u800c\u4f60\u7684\u88dd\u7f6e\u6703\u628a\u5b83\u7576\u6210\u771f\u7684\u3002\u9019\u7a2e\u4f0e\u5006\u4e5f\u88ab\u7a31\u70ba DNS \u5feb\u53d6\u6b3a\u9a19\uff08DNS cache spoofing\uff09\u3002\u7d50\u679c\u5f88\u76f4\u89c0\uff1a\u700f\u89bd\u5668\u9023\u5411\u932f\u8aa4\u7684\u4f4d\u7f6e\uff0c\u7db2\u7ad9\u5c31\u6253\u4e0d\u958b\u4e86\u3002\u672c\u6307\u5357\u8a0e\u8ad6\u7684\u7db2\u7ad9\u5b58\u53d6\u6545\u969c\uff0c\u5f88\u5927\u6a5f\u7387\u5c31\u662f\u9019\u7a2e DNS \u5feb\u53d6\u6295\u6bd2\u5f15\u8d77\u7684\u3002<\/p>\n DNS \u6295\u6bd2\u65e2\u53ef\u4ee5\u53ea\u91dd\u5c0d\u67d0\u4e00\u53f0\u88dd\u7f6e\uff0c\u4e5f\u53ef\u4ee5\u5f71\u97ff\u6574\u500b\u5340\u57df\u7db2\u8def\u3002\u9019\u5c31\u89e3\u91cb\u4e86\u70ba\u4ec0\u9ebc\u6709\u7684\u7db2\u7ad9\u6253\u4e0d\u958b\uff0c\u800c\u5176\u4ed6\u7db2\u7ad9\u537b\u4e00\u5207\u6b63\u5e38\u3002\u4e00\u500b\u932f\u8aa4\u7684 DNS \u5feb\u53d6\u8a18\u9304\u53ea\u6703\u5f71\u97ff\u5230\u5b83\u5c0d\u61c9\u7684\u7db2\u57df\u540d\u7a31\uff0c\u5176\u4ed6\u67e5\u8a62\u4f9d\u7136\u53ef\u4ee5\u56de\u50b3\u6b63\u78ba\u7d50\u679c\u3002DNS \u6295\u6bd2\u5f9e\u4f86\u4e0d\u6703\u8b93\u4f60\u300c\u6240\u6709\u7db2\u7ad9\u540c\u6642\u90fd\u58de\u6389\u300d\u3002<\/p>\n DNS \u6295\u6bd2\u653b\u64ca\u5f80\u5f80\u5f9e\u8584\u5f31\u7684\u8def\u7531\u5668\u958b\u59cb\u3002\u5982\u679c\u4f60\u7d93\u5e38\u9047\u5230\u985e\u4f3c\u7684 DNS \u554f\u984c\uff0c\u5f88\u53ef\u80fd\u662f\u7db2\u8def\u88e1\u67d0\u53f0\u88dd\u7f6e\u6c92\u6709\u6253\u88dc\u4e01\uff0c\u6216\u8005\u8def\u7531\u5668\u97cc\u9ad4\u5b58\u5728\u6f0f\u6d1e\uff0c\u4f7f\u5f97 DNS \u6295\u6bd2\u53ef\u4ee5\u53cd\u8986\u6210\u529f\u3002\u4f60\u901a\u5e38\u53ef\u4ee5\u900f\u904e\u9019\u6a23\u7684\u7279\u5fb5\u8b58\u5225 DNS \u6295\u6bd2\uff1a\u53ea\u6709\u67d0\u4e00\u90e8\u5206\u7db2\u7ad9\u6709\u554f\u984c\uff0c\u5176\u4ed6\u7db2\u7ad9\u6b63\u5e38\uff1b\u4e26\u4e14\u63db\u7db2\u8def\uff08\u4f8b\u5982\u7528\u624b\u6a5f\u884c\u52d5\u6578\u64da\uff09\u5f8c\u5c31\u6062\u5fa9\u3002\u9019\u8aaa\u660e DNS \u554f\u984c\u88ab\u9650\u5b9a\u5728\u67d0\u500b\u7db2\u8def\u74b0\u5883\u4e2d\u3002\u597d\u6d88\u606f\u662f\uff0cDNS \u5feb\u53d6\u6295\u6bd2\u4e00\u822c\u90fd\u662f\u66ab\u6642\u6027\u7684\uff0c\u591a\u6578\u90fd\u80fd\u5f88\u5feb\u6e05\u7406\u4e7e\u6de8\u3002\u63a5\u4e0b\u4f86\u5c31\u7528\u4e0b\u9762\u9019\u4e9b\u6b65\u9a5f\u4f86\u4fee\u5fa9\u3002<\/p>\n \u78ba\u8a8d\u7db2\u7ad9\u6253\u4e0d\u958b\u662f\u5426\u771f\u7684\u56e0\u70ba DNS \u6c61\u67d3<\/strong><\/h2>\n \u5148\u505a\u4e00\u4e9b\u5feb\u901f\u6392\u67e5<\/h3>\n \u5148\u5f9e\u6700\u7c21\u55ae\u7684\u6aa2\u67e5\u958b\u59cb\u3002\u5728\u540c\u4e00\u500b\u7db2\u8def\u4e0b\uff0c\u7528\u53e6\u4e00\u53f0\u88dd\u7f6e\u958b\u555f\u540c\u4e00\u500b\u7db2\u7ad9\uff1b\u7136\u5f8c\u518d\u8a66\u8a66\u4e0d\u540c\u7684\u700f\u89bd\u5668\uff0c\u4e26\u958b\u4e00\u500b\u300c\u7121\u75d5 \/ \u96b1\u79c1\u6a21\u5f0f\u300d\u8996\u7a97\u3002\u518d\u505a\u4e00\u6b21\u5f37\u5236\u91cd\u65b0\u6574\u7406\uff1aWindows \u4e0a\u6309 Ctrl+Shift+R\uff0cMac \u4e0a\u6309 Command+Shift+R\u3002\u9019\u4e9b\u64cd\u4f5c\u80fd\u5e6b\u4f60\u78ba\u8a8d\u554f\u984c\u662f\u53ea\u51fa\u5728\u67d0\u500b\u700f\u89bd\u5668\u3001\u67d0\u500b\u88dd\u7f6e\uff0c\u9084\u662f\u6574\u500b\u7db2\u8def\u3002<\/p>\n \u63a5\u8457\u6392\u9664\u5e72\u64fe\u56e0\u7d20\u3002\u66ab\u6642\u95dc\u9589 VPN \u548c\u9632\u6bd2\u8edf\u9ad4\uff0c\u518d\u91cd\u65b0\u6574\u7406\u7db2\u9801\u3002\u4e5f\u6aa2\u67e5\u4e00\u4e0b\u9632\u706b\u7246\u8a2d\u5b9a\u3002\u904e\u65bc\u56b4\u683c\u7684\u9632\u706b\u7246\u898f\u5247\u4e5f\u53ef\u80fd\u5c01\u9396\u67d0\u500b\u7db2\u7ad9\uff0c\u770b\u8d77\u4f86\u5c31\u50cf DNS \u6545\u969c\u3002\u5982\u679c\u95dc\u6389 VPN \u5f8c\u7db2\u7ad9\u53ef\u4ee5\u6b63\u5e38\u958b\u555f\uff0c\u90a3\u8aaa\u660e\u554f\u984c\u4f86\u81ea VPN\uff0c\u800c\u4e0d\u662f DNS \u6295\u6bd2\u3002<\/p>\n \u54ea\u4e9b\u8de1\u8c61\u8aaa\u660e\u662f DNS \u554f\u984c<\/h3>\n \u7559\u610f\u662f\u5426\u5b58\u5728\u4e00\u500b\u6e05\u695a\u7684\u300c\u6a21\u5f0f\u300d\uff1a\u53ea\u6709\u90e8\u5206\u7db2\u7ad9\u6253\u4e0d\u958b\uff0c\u800c\u5927\u90e8\u5206\u7db2\u7ad9\u6b63\u5e38\u3002\u9019\u5f80\u5f80\u6697\u793a DNS \u89e3\u6790\u88ab\u7ac4\u6539\uff0c\u662f\u5224\u65b7\u662f\u5426\u9047\u5230 DNS \u6295\u6bd2\u7684\u6700\u91cd\u8981\u8a0a\u865f\u4e4b\u4e00\u3002\u4f60\u4e5f\u53ef\u4ee5\u6839\u64da\u700f\u89bd\u5668\u6216\u7cfb\u7d71\u62cb\u51fa\u7684\u932f\u8aa4\u63d0\u793a\u4f86\u5224\u65b7\uff0c\u4f8b\u5982\u300cDNS server not responding\uff08DNS \u4f3a\u670d\u5668\u7121\u56de\u61c9\uff09\u300d\u6216\u8005\u300cdomain could not be found\uff08\u627e\u4e0d\u5230\u7db2\u57df\uff09\u300d\u4e4b\u985e\uff0c\u90fd\u76f4\u6307 DNS \u5c64\u9762\u7684\u554f\u984c\u3002<\/p>\n \u9084\u6709\u4e00\u4e9b\u5176\u4ed6\u8a0a\u865f\u53ef\u4ee5\u5e6b\u52a9\u4f60\u8b58\u5225 DNS \u6295\u6bd2\uff1a\u610f\u5916\u8df3\u8f49\u5230\u964c\u751f\u7db2\u7ad9\u3001\u6191\u8b49\u8b66\u544a\u3001\u9996\u6b21\u958b\u555f\u67d0\u7db2\u7ad9\u6642\u7570\u5e38\u7de9\u6162\u7b49\uff0c\u90fd\u53ef\u80fd\u662f\u7dda\u7d22\u3002\u6700\u5178\u578b\u7684\u9084\u6709\uff1a\u4f60\u9020\u8a2a\u7684 URL \u548c\u5be6\u969b\u958b\u555f\u7684\u5167\u5bb9\u660e\u986f\u4e0d\u7b26\u3002\u6b64\u6642\u53ef\u4ee5\u57f7\u884c nslookup<\/code> \u6216 dig<\/code> \u6307\u4ee4\uff0c\u67e5\u770b\u56de\u50b3\u7684 IP \u4f4d\u5740\u662f\u5426\u548c\u9810\u671f\u4e00\u81f4\u3002\u5982\u679c IP \u4f4d\u5740\u660e\u986f\u4e0d\u5c0d\uff0c\u5c31\u53ef\u4ee5\u5927\u81f4\u78ba\u8a8d\u5b58\u5728\u7ac4\u6539\u3002<\/p>\n \u4f60\u9084\u53ef\u4ee5\u555f\u7528 DNSSEC \u4f86\u9632\u6b62\u89e3\u6790\u7d50\u679c\u88ab\u7ac4\u6539\uff1b\u5728\u652f\u63f4\u7684\u60c5\u6cc1\u4e0b\u4f7f\u7528 DNS-over-HTTPS\uff08DoH\uff09\u6216 DNS-over-TLS\uff08DoT\uff09\u5c0d DNS \u67e5\u8a62\u9032\u884c\u52a0\u5bc6\uff1b\u5b9a\u671f\u505a\u60e1\u610f\u8edf\u9ad4\u6383\u63cf\u4ee5\u9632\u6b62\u60e1\u610f\u7a0b\u5f0f\u4fee\u6539 hosts \u6a94\u6848\uff1b\u540c\u6642\u4fdd\u6301\u8def\u7531\u5668\u548c\u97cc\u9ad4\u70ba\u6700\u65b0\u7248\u672c\uff0c\u4ee5\u964d\u4f4e DNS \u52ab\u6301\u7684\u98a8\u96aa\u3002<\/p>\n \n \n\n\n\n<\/colgroup>\n\n\n\n\n\n\n \u8868\u73fe<\/th>\n \u53ef\u80fd\u610f\u5473\u8457\u4ec0\u9ebc<\/th>\n<\/tr>\n \u610f\u5916\u8df3\u8f49<\/td>\n \u719f\u6089\u7684 URL \u537b\u958b\u555f\u4e86\u964c\u751f\u7db2\u7ad9\uff0c\u6216\u8df3\u51fa\u7570\u5e38\u7684\u767b\u5165\u756b\u9762<\/td>\n<\/tr>\n \u700f\u89bd\u5668\u5b89\u5168\u8b66\u544a<\/td>\n \u51fa\u73fe\u300c\u6191\u8b49\u4e0d\u53d7\u4fe1\u4efb\u300d\u7b49\u63d0\u793a\uff0c\u53ef\u80fd\u662f\u4eff\u5192\u7db2\u7ad9<\/td>\n<\/tr>\n IP \u89e3\u6790\u7d50\u679c\u7570\u5e38<\/td>\n nslookup<\/code> \u6216 dig<\/code> \u56de\u50b3\u7684\u4f4d\u5740\u8207\u9810\u671f\u4e0d\u7b26<\/td>\n<\/tr>\n DNS \u8a2d\u5b9a\u88ab\u64c5\u81ea\u4fee\u6539<\/td>\n \u88dd\u7f6e\u6216\u8def\u7531\u5668\u7684 DNS \u8a2d\u5b9a\u5728\u4f60\u4e0d\u77e5\u60c5\u7684\u60c5\u6cc1\u4e0b\u767c\u751f\u6539\u8b8a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/blockquote>\n \u4ee5\u4e0a\u6aa2\u67e5\u53ea\u9700\u5e7e\u5206\u9418\uff0c\u5c31\u80fd\u70ba\u5f8c\u7e8c\u7684 DNS \u6545\u969c\u6392\u67e5\u6253\u4e0b\u76f8\u7576\u7d2e\u5be6\u7684\u57fa\u790e\u3002<\/p>\n \u5feb\u901f\u4fee\u5fa9\uff1a\u512a\u5148\u5617\u8a66\u7684 DNS \u6295\u6bd2\u89e3\u6c7a\u65b9\u6848<\/strong><\/h2>\n \u91cd\u65b0\u555f\u52d5\u88dd\u7f6e\u4e26\u5207\u63db DNS \u4f3a\u670d\u5668<\/h3>\n \u5148\u628a\u57fa\u790e\u64cd\u4f5c\u505a\u4e00\u904d\u3002\u91cd\u65b0\u555f\u52d5\u8def\u7531\u5668\u548c\u5149\u7e96\u6578\u64da\u6a5f \/ \u6578\u64da\u6a5f\uff0c\u7136\u5f8c\u91cd\u65b0\u555f\u52d5\u4f60\u7684\u96fb\u8166\u6216\u624b\u6a5f\u3002\u9019\u53ef\u4ee5\u6e05\u9664\u5f88\u591a\u66ab\u6642\u6027\u7684\u6545\u969c\u3002\u63a5\u8457\u91cb\u653e\u4e26\u91cd\u65b0\u53d6\u5f97 IP \u4f4d\u5740\uff0c\u8b93\u88dd\u7f6e\u91cd\u65b0\u5411\u8def\u7531\u5668\u7533\u8acb\u7db2\u8def\u8a2d\u5b9a\u3002\u9019\u4e9b\u64cd\u4f5c\u5e7e\u4e4e\u4e0d\u82b1\u6210\u672c\uff0c\u537b\u7d93\u5e38\u80fd\u76f4\u63a5\u89e3\u6c7a\u554f\u984c\u3002<\/p>\n \u5982\u679c\u7db2\u7ad9\u4ecd\u7136\u6253\u4e0d\u958b\uff0c\u5c31\u66f4\u63db DNS \u4f3a\u670d\u5668\u3002\u5efa\u8b70\u5148\u4f7f\u7528 Google \u7684\u516c\u5171\u89e3\u6790\u670d\u52d9\uff1a\u4e3b DNS \u8a2d\u70ba 8.8.8.8<\/code>\uff0c\u5099\u7528 DNS \u8a2d\u70ba 8.8.4.4<\/code>\u3002\u5404\u5e73\u81fa\u7684 DNS \u8a2d\u5b9a\u5165\u53e3\u5927\u81f4\u5982\u4e0b\uff1a<\/p>\n \n Windows 11\uff1a<\/strong>\u958b\u555f\u300c\u8a2d\u5b9a > \u7db2\u8def\u548c\u7db2\u969b\u7db2\u8def > \u9032\u968e\u7db2\u8def\u8a2d\u5b9a\u300d\uff0c\u9078\u64c7\u76ee\u524d\u9023\u7dda\uff0c\u9ede\u64ca\u300c\u6aa2\u8996\u5176\u4ed6\u5167\u5bb9\uff08View additional properties\uff09\u300d\uff0c\u5728\u300cDNS \u4f3a\u670d\u5668\u6307\u6d3e\uff08DNS server assignment\uff09\u300d\u8655\u9ede\u9078\u300c\u7de8\u8f2f\uff08Edit\uff09\u300d\uff0c\u628a\u300c\u81ea\u52d5\uff08DHCP\uff09\u300d\u6539\u6210\u300c\u624b\u52d5\uff08Manual\uff09\u300d\uff0c\u958b\u555f IPv4\uff0c\u8f38\u5165 8.8.8.8<\/code> \u548c 8.8.4.4<\/code>\uff0c\u7136\u5f8c\u5132\u5b58\u3002<\/li>\n Windows 10\uff1a<\/strong>\u958b\u555f\u300c\u8a2d\u5b9a > \u7db2\u8def\u548c\u7db2\u969b\u7db2\u8def > \u8b8a\u66f4\u4ecb\u9762\u5361\u9078\u9805\uff08Change adapter options\uff09\u300d\uff0c\u5728\u76ee\u524d\u7db2\u8def\u9023\u7dda\u4e0a\u6309\u53f3\u9375\uff0c\u9078\u64c7\u300c\u5167\u5bb9\u300d\uff0c\u627e\u5230\u300cInternet \u901a\u8a0a\u5354\u5b9a\u7b2c 4 \u7248 (TCP\/IPv4)\u300d\uff0c\u9ede\u9078\u300c\u5167\u5bb9\u300d\uff0c\u52fe\u9078\u300c\u4f7f\u7528\u4e0b\u5217\u7684 DNS \u4f3a\u670d\u5668\u4f4d\u5740\uff08Use the following DNS server addresses\uff09\u300d\uff0c\u5206\u5225\u586b\u5165 8.8.8.8<\/code> \u548c 8.8.4.4<\/code>\uff0c\u7136\u5f8c\u78ba\u5b9a\u3002<\/li>\n Mac\uff1a<\/strong>\u958b\u555f\u300c\u7cfb\u7d71\u8a2d\u5b9a > \u7db2\u8def\u300d\uff0c\u9078\u64c7 Wi\u2011Fi \u6216\u6709\u7dda\u7db2\u8def\uff0c\u9ede\u9078\u300c\u8a73\u7d30\u8cc7\u8a0a\uff08Details\uff09\u300d\uff0c\u5207\u63db\u5230\u300cDNS\u300d\u5206\u9801\uff0c\u9ede\u64ca\u52a0\u865f\uff0c\u65b0\u589e 8.8.8.8<\/code>\uff0c\u518d\u65b0\u589e 8.8.4.4<\/code>\uff0c\u6700\u5f8c\u9ede\u9078\u300c\u597d \/ \u78ba\u5b9a\uff08OK\uff09\u300d\u3002<\/li>\n \u8def\u7531\u5668\uff1a<\/strong>\u767b\u5165\u8def\u7531\u5668\u7ba1\u7406\u4ecb\u9762\uff0c\u5728\u300c\u7db2\u969b\u7db2\u8def \/ WAN \/ \u7db2\u8def\u300d\u4e4b\u985e\u7684\u9801\u9762\u627e\u5230 DNS \u8a2d\u5b9a\uff0c\u628a\u300c\u81ea\u52d5\u53d6\u5f97 DNS\u300d\u6539\u70ba\u300c\u624b\u52d5\u6307\u5b9a\u300d\uff0c\u586b\u5165 8.8.8.8<\/code> \u548c 8.8.4.4<\/code>\uff0c\u5132\u5b58\u4e26\u5957\u7528\u3002<\/li>\n<\/ol>\n \u7528 8.8.8.8<\/code> \u6e2c\u8a66\u9084\u6709\u4e00\u500b\u597d\u8655\uff1a\u53ef\u4ee5\u5e6b\u4f60\u5224\u65b7\u662f\u4e0d\u662f\u67d0\u500b\u5167\u90e8 DNS \u4ee3\u7406\u6216\u904e\u6ffe\u5668\u5c0e\u81f4\u7684\u6545\u969c\u3002\u5982\u679c\u63db\u6210\u516c\u5171 DNS \u5f8c\u7db2\u7ad9\u80fd\u958b\u555f\uff0c\u800c\u63db\u56de\u539f\u672c\u7684 DNS \u5c31\u4e0d\u884c\uff0c\u90a3\u8aaa\u660e\u554f\u984c\u51fa\u5728\u539f\u6709\u7684\u672c\u5730 DNS \u6216\u904e\u6ffe\u670d\u52d9\u4e0a\u3002<\/p>\n \u70ba\u4ec0\u9ebc\u9019\u62db\u901a\u5e38\u6709\u6548\uff1f\u56e0\u70ba Google Public DNS \u6703\u9a57\u8b49 DNSSEC \u7c3d\u7ae0\uff0c\u5c0d\u7c3d\u7ae0\u4e0d\u76f8\u7b26\u7684\u56de\u61c9\u76f4\u63a5\u6368\u68c4\uff0c\u5f9e\u800c\u963b\u6b62\u6ce8\u5165\u7684\u865b\u5047\u4f4d\u5740\uff1b\u5c0d\u65bc\u78ba\u5be6\u4e0d\u5b58\u5728\u7684\u7db2\u57df\u540d\u7a31\uff0c\u5b83\u6703\u56de\u50b3\u771f\u6b63\u7684 NXDOMAIN\uff0c\u800c\u4e0d\u662f\u88ab\u96fb\u4fe1\u6216\u4e2d\u9593\u4eba\u300c\u52ab\u6301\u300d\u7684\u932f\u8aa4\u9801\u9762\uff0c\u540c\u6642\u7dad\u6301\u4e00\u500b\u6db5\u84cb\u5168\u7403\u7684\u65b0\u9bae\u5feb\u53d6\u3002<\/p>\n Wilmer van der Gaast \u56de\u9867 Dan Kaminsky \u516c\u5e03\u5feb\u53d6\u6295\u6bd2\u6f0f\u6d1e\u6642\u5c31\u6307\u51fa\uff0c\u50c5\u6709 16 \u4f4d\u96a8\u6a5f ID \u9060\u9060\u4e0d\u5920\uff0c\u800c\u4e14\u90a3\u4e9b\u6c92\u6709\u9032\u884c\u9023\u63a5\u57e0\u865f\u96a8\u6a5f\u5316\u7684\u670d\u52d9\u5c0d\u5feb\u53d6\u6295\u6bd2\u683c\u5916\u654f\u611f\u3002<\/p>\n \u9019\u6bb5\u6b77\u53f2\u5f88\u597d\u5730\u8aaa\u660e\u4e86\u300c\u53ef\u4fe1\u89e3\u6790\u5668\u6709\u591a\u91cd\u8981\u300d\uff1a\u4e00\u65e6 DNS \u4f3a\u670d\u5668\u672c\u8eab\u88ab\u6295\u6bd2\u6216\u505a\u4e86\u4e0d\u7576\u904e\u6ffe\uff0c\u5c31\u6703\u6e90\u6e90\u4e0d\u7d55\u5730\u63d0\u4f9b\u932f\u8aa4\u7b54\u6848\uff1b\u800c\u5207\u63db\u5230\u53ef\u9760\u7684\u89e3\u6790\u5668\uff0c\u5247\u80fd\u6062\u5fa9\u5230\u771f\u5be6\u7684\u89e3\u6790\u7d50\u679c\u3002<\/p>\n \u4f7f\u7528 VPN \u6216\u5b89\u5168 DNS \u4f5c\u70ba\u66ab\u6642\u7e5e\u904e\u65b9\u6848<\/h3>\n VPN \u6216\u5b89\u5168 DNS\uff08\u4f8b\u5982 DNS-over-HTTPS\uff09\u53ef\u4ee5\u7e5e\u958b\u88ab\u6c61\u67d3\u7684\u89e3\u6790\u7d50\u679c\u3002DNS-over-HTTPS \u6703\u628a\u67e5\u8a62\u5c01\u88dd\u9032\u52a0\u5bc6\u7684 HTTPS \u9023\u7dda\u88e1\uff0c\u9019\u6a23\u7db2\u8def\u8def\u5f91\u4e0a\u7684\u7b2c\u4e09\u65b9\u5c31\u7121\u6cd5\u8f15\u6613\u6514\u622a\u6216\u7ac4\u6539\uff0c\u5f9e\u800c\u6709\u6548\u963b\u6b62 DNS \u6ce8\u5165\u548c\u60e1\u610f\u91cd\u65b0\u5c0e\u5411\u3002\u53ef\u4ee5\u628a\u5b83\u770b\u6210\u300c\u7dca\u6025\u901a\u9053\u300d\uff0c\u5728\u4f60\u5fc5\u9808\u7acb\u523b\u5b58\u53d6\u7db2\u7ad9\u6642\u975e\u5e38\u6709\u7528\u3002<\/p>\n \u4e0d\u540c VPN \u7684\u9632\u8b77\u80fd\u529b\u4e5f\u4e0d\u4e00\u6a23\u3002\u4f8b\u5982 ExpressVPN\u3001NordVPN\u3001Surfshark\u3001IPVanish \u548c ProtonVPN \u6703\u900f\u904e\u5c08\u9580\u7684 DNS \u8655\u7406\u65b9\u5f0f\u4f86\u62b5\u6297\u57fa\u65bc DNS \u7684\u6703\u8a71\u63a8\u65b7\u653b\u64ca\uff1b\u800c PIA\u3001PrivateVPN\u3001CyberGhost\u3001Windscribe \u7b49\u5728\u90e8\u5206\u6e2c\u8a66\u4e2d\u5247\u986f\u793a\u51fa\u4e00\u5b9a\u7684\u8106\u5f31\u6027\u3002\u5982\u679c\u4f60\u9577\u671f\u4f9d\u8cf4 VPN \u4f86\u4fdd\u8b77\u96b1\u79c1\u548c\u5b58\u53d6\u7db2\u7ad9\uff0c\u5efa\u8b70\u512a\u5148\u9078\u64c7 DNS \u8655\u7406\u8f03\u5b89\u5168\u7684\u4f9b\u61c9\u5546\u3002<\/p>\n \u6700\u5f8c\uff0c\u5225\u5fd8\u4e86\u6aa2\u67e5\u8def\u7531\u5668\u97cc\u9ad4\u66f4\u65b0\u3002\u6700\u65b0\u97cc\u9ad4\u6703\u4fee\u88dc\u5df2\u77e5\u6f0f\u6d1e\uff0c\u986f\u8457\u964d\u4f4e\u53cd\u8986\u51fa\u73fe DNS \u932f\u8aa4\u7684\u6a5f\u7387\u3002\u82b1\u4e00\u5206\u9418\u6aa2\u67e5\u66f4\u65b0\uff0c\u5f80\u5f80\u80fd\u907f\u514d\u65e5\u5f8c\u5f88\u591a\u9ebb\u7169\u3002<\/p>\n \u9811\u56fa\u6545\u969c\u7684\u9032\u968e\u4fee\u5fa9\u65b9\u6cd5<\/strong><\/h2>\n \u6e05\u9664 DNS \u5feb\u53d6<\/h3>\n \u5982\u679c DNS \u5feb\u53d6\u88e1\u7684\u932f\u8aa4\u8a18\u9304\u6c92\u6709\u88ab\u6e05\u6389\uff0c\u5373\u4f7f\u4f60\u5df2\u7d93\u66f4\u63db\u4e86 DNS \u4f3a\u670d\u5668\uff0c\u7cfb\u7d71\u4ecd\u53ef\u80fd\u7e7c\u7e8c\u4f7f\u7528\u90a3\u689d\u300c\u9673\u820a\u53c8\u932f\u8aa4\u300d\u7684\u7b54\u6848\u3002\u6b64\u6642\u5c31\u9700\u8981\u624b\u52d5\u6e05\u9664 DNS \u5feb\u53d6\uff0c\u5f37\u8feb\u7cfb\u7d71\u91cd\u65b0\u67e5\u8a62\u3002<\/p>\n \u5728 Windows \u4e0a\uff0c\u4ee5\u7cfb\u7d71\u7ba1\u7406\u54e1\u8eab\u5206\u958b\u555f\u547d\u4ee4\u63d0\u793a\u5b57\u5143\uff08Command Prompt\uff09\uff0c\u57f7\u884c\u6307\u4ee4 ipconfig \/flushdns<\/code>\u3002\u5728 Mac \u4e0a\uff0c\u5177\u9ad4\u6307\u4ee4\u53d6\u6c7a\u65bc\u7cfb\u7d71\u7248\u672c\u3002<\/p>\n \n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n \u5e73\u81fa \/ \u7248\u672c<\/th>\n \u6307\u4ee4<\/th>\n<\/tr>\n Windows (10, 8, 7, XP)<\/td>\n ipconfig \/flushdns<\/code><\/td>\n<\/tr>\n macOS 10.11+\uff08El Capitan ~ Catalina\uff09<\/td>\n sudo killall -HUP mDNSResponder<\/code><\/td>\n<\/tr>\n macOS 10.10\uff08Yosemite\uff09<\/td>\n sudo discoveryutil udnsflushcaches<\/code><\/td>\n<\/tr>\n macOS 10.6\uff08Snow Leopard\uff09<\/td>\n sudo dscacheutil -flushcache<\/code><\/td>\n<\/tr>\n Chrome\uff08\u700f\u89bd\u5668\u672c\u8eab\u7684 DNS \u5feb\u53d6\uff09<\/td>\n \u5728\u7db2\u5740\u5217\u8f38\u5165 chrome:\/\/net-internals\/#dns<\/code>\uff0c\u6309\u4e0b Enter\uff0c\u7136\u5f8c\u9ede\u64ca\u300cClear host cache\u300d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n Chrome \u7dad\u8b77\u8457\u4e00\u5957\u7368\u7acb\u65bc\u7cfb\u7d71\u7684 DNS \u89e3\u6790\u5feb\u53d6\uff0c\u56e0\u6b64\u9664\u4e86\u7cfb\u7d71\u5c64\u7d1a\u5feb\u53d6\u4e4b\u5916\uff0c\u4e5f\u8981\u5728\u700f\u89bd\u5668\u88e1\u6e05\u7406\u4e00\u6b21\u3002\u96a8\u5f8c\u53ef\u4ee5\u5728 Chrome \u7684\u300c\u8a2d\u5b9a > \u91cd\u8a2d\u8a2d\u5b9a\u300d\u4e2d\u91cd\u8a2d\u8207\u7db2\u8def\u76f8\u95dc\u7684\u8a2d\u5b9a\u3002\u5728 Windows \u4e0a\uff0c\u4f60\u9084\u53ef\u4ee5\u984d\u5916\u91cd\u65b0\u555f\u52d5 DNS Client \u670d\u52d9\uff1a\u958b\u555f\u300c\u670d\u52d9\uff08Services\uff09\u300d\uff0c\u627e\u5230\u300cDNS Client\u300d\uff0c\u9ede\u9078\u300c\u91cd\u65b0\u555f\u52d5\uff08Restart\uff09\u300d\u3002\u9019\u6a23\u53ef\u4ee5\u5f9e\u670d\u52d9\u5c64\u7d1a\u6e05\u7a7a DNS \u5feb\u53d6\uff0c\u907f\u514d DNS \u6295\u6bd2\u6b98\u7559\u3002<\/p>\n \u7de8\u8f2f hosts \u6a94\u6848\u4e26\u91cd\u8a2d\u7db2\u8def\u8a2d\u5b9a<\/h3>\n hosts \u6a94\u6848\u7684\u512a\u5148\u9806\u5e8f\u9ad8\u65bc DNS \u89e3\u6790\uff0c\u5b83\u53ef\u4ee5\u5728\u672c\u6a5f\u76f4\u63a5\u628a\u7db2\u57df\u540d\u7a31\u6307\u5411\u6307\u5b9a IP \u4f4d\u5740\u3002\u7de8\u8f2f\u5b83\uff0c\u5c31\u53ef\u4ee5\u66ab\u6642\u628a\u76ee\u6a19\u7db2\u7ad9\u624b\u52d5\u6307\u5411\u6b63\u78ba\u7684\u4f3a\u670d\u5668 IP\u3002\u4ee5\u7cfb\u7d71\u7ba1\u7406\u54e1\u6b0a\u9650\u958b\u555f\u8a72\u6a94\u6848\uff1aWindows \u4e0a\u662f C:\\Windows\\System32\\drivers\\etc\\hosts<\/code>\uff0cMac \u4e0a\u662f \/etc\/hosts<\/code>\u3002\u7136\u5f8c\u65b0\u589e\u4e00\u884c\uff0c\u586b\u5165\u76ee\u6a19 IP \u4f4d\u5740\u3001\u7a7a\u683c\u3001\u7db2\u57df\u540d\u7a31\u3002<\/p>\n \u4fee\u6539\u524d\u8a18\u5f97\u5148\u5099\u4efd hosts 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