{"id":30549,"date":"2026-03-04T14:59:20","date_gmt":"2026-03-04T06:59:20","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-tw\/why-ip-can-be-accessed-but-the-domain-cannot-be-opened\/"},"modified":"2026-03-04T15:10:00","modified_gmt":"2026-03-04T07:10:00","slug":"why-ip-can-be-accessed-but-the-domain-cannot-be-opened","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-tw\/blog-tc\/why-ip-can-be-accessed-but-the-domain-cannot-be-opened\/","title":{"rendered":"\u70ba\u4f55IP\u53ef\u5b58\u53d6\u4f46\u7db2\u57df\u7121\u6cd5\u958b\u555f"},"content":{"rendered":"<p>\u4f60\u53ef\u80fd\u6703\u7591\u60d1\uff0c\u70ba\u4f55\u4f7f\u7528\u6578\u5b57\u5f62\u5f0f\u7684IP\u80fd\u5b58\u53d6\u7db2\u7ad9\uff0c\u8f38\u5165\u7db2\u57df\u537b\u7121\u6cd5\u958b\u555f\u3002\u9019\u500b\u554f\u984c\u5e38\u5e38\u8b93\u4eba\u56f0\u60d1\u3002\u5f88\u591a\u6642\u5019IP\u53ef\u6b63\u5e38\u5b58\u53d6\uff0c\u7db2\u57df\u537b\u8f09\u5165\u5931\u6557\uff0c\u539f\u56e0\u901a\u5e38\u6d89\u53ca<a href=\"https:\/\/www.varidata.com\/zh-tw\/knowledge-tc\/dns-resolution-process-local-vs-server-side-query-priority\/\" target=\"_blank\">DNS\u932f\u8aa4<\/a>\u3001\u56b4\u683c\u7684\u9632\u706b\u7246\u898f\u5247\u6216<a href=\"https:\/\/www.varidata.com\/zh-tw\/server\/hk\/\" target=\"_blank\">\u4f3a\u670d\u5668\u8a2d\u5b9a<\/a>\u932f\u8aa4\u3002\u4f60\u4e0d\u5fc5\u675f\u624b\u7121\u7b56\uff0c\u9019\u985e\u554f\u984c\u7684\u5927\u591a\u6578\u89e3\u6c7a\u65b9\u6848\u90fd\u7c21\u55ae\u6613\u64cd\u4f5c\u3002<\/p>\n<h2>DNS\u554f\u984c\u8207IP\u53ef\u5b58\u53d6\u7684\u539f\u56e0<\/h2>\n<h3>DNS\u89e3\u6790\u6d41\u7a0b<\/h3>\n<p>\u7576\u4f60\u5728\u700f\u89bd\u5668\u4e2d\u8f38\u5165\u7db2\u7ad9\u7db2\u57df\u6642\uff0c\u8a2d\u5099\u7121\u6cd5\u76f4\u63a5\u7372\u77e5\u5176IP\u4f4d\u5740\uff0c\u9700\u8981\u501f\u52a9<strong>\u7db2\u57df\u540d\u7a31\u7cfb\u7d71\uff08DNS\uff09<\/strong>\u5b8c\u6210\u89e3\u6790\u3002DNS\u5c31\u50cf\u7db2\u969b\u7db2\u8def\u7684\u96fb\u8a71\u7c3f\uff0c\u5e38\u898f\u89e3\u6790\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\n<p>\u4f60\u5728\u700f\u89bd\u5668\u4e2d\u8f38\u5165\u7db2\u5740\uff0c\u700f\u89bd\u5668\u5c07\u5176\u8f49\u63db\u70ba\u5b8c\u6574\u7db2\u57df\u540d\u7a31\uff08FQDN\uff09\u3002<\/p>\n<\/li>\n<li>\n<p>\u700f\u89bd\u5668\u5411\u89e3\u6790\u4f3a\u670d\u5668\u8acb\u6c42\u67e5\u8a62\u8a72\u5b8c\u6574\u7db2\u57df\u540d\u7a31\u5c0d\u61c9\u7684IP\u4f4d\u5740\u3002<\/p>\n<\/li>\n<li>\n<p>\u89e3\u6790\u4f3a\u670d\u5668\u5411\u6839\u7db2\u57df\u4f3a\u670d\u5668\u67e5\u8a62\uff0c\u53d6\u5f97\u5c0d\u61c9\u9802\u7d1a\u7db2\u57df\uff08TLD\uff09\u4f3a\u670d\u5668\u7684\u4f4d\u5740\u3002<\/p>\n<\/li>\n<li>\n<p>\u89e3\u6790\u4f3a\u670d\u5668\u9023\u63a5\u9802\u7d1a\u7db2\u57df\u4f3a\u670d\u5668\uff0c\u53d6\u5f97\u6b0a\u5a01\u7db2\u57df\u4f3a\u670d\u5668\u4f4d\u5740\u3002<\/p>\n<\/li>\n<li>\n<p>\u89e3\u6790\u4f3a\u670d\u5668\u5411\u6b0a\u5a01\u7db2\u57df\u4f3a\u670d\u5668\u8acb\u6c42\u7db2\u7ad9\u771f\u5be6IP\u4f4d\u5740\u3002<\/p>\n<\/li>\n<li>\n<p>\u89e3\u6790\u4f3a\u670d\u5668\u5c07IP\u4f4d\u5740\u8fd4\u56de\u7d66\u700f\u89bd\u5668\uff0c\u4f60\u5373\u53ef\u6b63\u5e38\u5b58\u53d6\u7db2\u7ad9\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u53ea\u8981\u5176\u4e2d\u4efb\u610f\u4e00\u6b65\u5931\u6557\uff0c\u5c31\u53ef\u80fd\u51fa\u73fe\u50c5IP\u53ef\u5b58\u53d6\u3001\u7db2\u57df\u7121\u6cd5\u958b\u555f\u7684\u60c5\u6cc1\u3002<\/p>\n<h3>\u5e38\u898bDNS\u932f\u8aa4<\/h3>\n<p>DNS\u554f\u984c\u6703\u5c0e\u81f4\u7121\u6cd5\u900f\u904e\u7db2\u57df\u5b58\u53d6\u7db2\u7ad9\uff0c\u5373\u4fbfIP\u53ef\u6b63\u5e38\u5b58\u53d6\u3002\u7db2\u8def\u7814\u7a76\u6578\u64da\u986f\u793a\uff0c\u9019\u985e\u554f\u984c\u5341\u5206\u5e38\u898b\uff1a<\/p>\n<div class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 50px\">\n<colgroup>\n<col style=\"min-width: 25px\">\n<col style=\"min-width: 25px\">\n<\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u5e38\u898bDNS\u554f\u984c<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u8aaa\u660e<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>DNS\u5feb\u53d6\u672a\u66f4\u65b0<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u820a\u89e3\u6790\u7d00\u9304\u6703\u963b\u7919\u65b0\u8a2d\u5b9a\u751f\u6548\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>TTL\u503c\u8a2d\u5b9a\u4e0d\u7576<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>TTL\u904e\u9577\u6703\u5ef6\u7de9\u89e3\u6790\u7d00\u9304\u66f4\u65b0\u901f\u5ea6\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u89e3\u6790\u7d00\u9304\u8a2d\u5b9a\u932f\u8aa4<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>IP\u586b\u5beb\u932f\u8aa4\u6216\u7d00\u9304\u7570\u5e38\u5c0e\u81f4\u89e3\u6790\u5931\u6557\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u7db2\u57df\u8a3b\u518a\u6d41\u7a0b\u672a\u5b8c\u6210<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u672a\u5b8c\u6210\u8a3b\u518a\u7684\u7db2\u57df\u7121\u6cd5\u88ab\u6b63\u5e38\u89e3\u6790\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>DNS\u670d\u52d9\u5546\u6545\u969c<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4f3a\u670d\u5668\u7576\u6a5f\u6216\u540c\u6b65\u5ef6\u9072\u5c0e\u81f4\u89e3\u6790\u7570\u5e38\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5168\u7403\u540c\u6b65\u5ef6\u9072<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u89e3\u6790\u4fee\u6539\u9700\u4e00\u5b9a\u6642\u9593\u540c\u6b65\u81f3\u5168\u7403\u7bc0\u9ede\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u7db2\u8def\u6216\u672c\u5730\u74b0\u5883\u554f\u984c<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u672c\u5730\u8a2d\u5b9a\u6216\u5feb\u53d6\u6703\u963b\u7919\u7db2\u57df\u5b58\u53d6\u3002<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3>DNS\u5feb\u53d6\u8207\u89e3\u6790\u751f\u6548<\/h3>\n<p>DNS\u4fee\u6539\u4e0d\u6703\u7acb\u5373\u751f\u6548\uff0c\u901a\u5e38\u9700\u8981\u7b49\u5f85\u89e3\u6790\u7d00\u9304\u5728\u5168\u7db2\u540c\u6b65\uff0c\u9019\u500b\u904e\u7a0b\u7a31\u70ba<strong>DNS\u89e3\u6790\u751f\u6548<\/strong>\uff0c\u8017\u6642\u4e0d\u56fa\u5b9a\uff1a<\/p>\n<div class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 50px\">\n<colgroup>\n<col style=\"min-width: 25px\">\n<col style=\"min-width: 25px\">\n<\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u8017\u6642<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u8aaa\u660e<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6578\u5206\u9418<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u90e8\u5206\u4fee\u6539\u53ef\u5feb\u901f\u751f\u6548\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>24~48\u5c0f\u6642<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5b8c\u6574\u7684\u5168\u7403\u540c\u6b65\u6700\u9577\u9700\u5169\u5929\u3002<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u82e5\u51fa\u73feIP\u53ef\u5b58\u53d6\u4f46\u7db2\u57df\u7121\u6cd5\u958b\u555f\u7684\u60c5\u6cc1\uff0c\u53ef\u7b49\u5f85\u89e3\u6790\u5b8c\u5168\u540c\u6b65\uff0c\u4e5f\u53ef\u5617\u8a66\u6e05\u9664\u8a2d\u5099DNS\u5feb\u53d6\u52a0\u901f\u751f\u6548\u3002<\/p>\n<h2>\u7db2\u57df\u8207\u4f3a\u670d\u5668\u8a2d\u5b9a\u554f\u984c<\/h2>\n<h3>\u7db2\u57df\u8a2d\u5b9a\u932f\u8aa4<\/h3>\n<p>\u8a2d\u5b9a\u932f\u8aa4\u6703\u5c0e\u81f4\u7db2\u57df\u7121\u6cd5\u5b58\u53d6\uff0c\u4f46IP\u4ecd\u53ef\u6b63\u5e38\u958b\u555f\u3002\u591a\u6578\u554f\u984c\u6e90\u65bc\u89e3\u6790\u7d00\u9304\u932f\u8aa4\u6216\u751f\u6548\u5ef6\u9072\uff0c\u5e38\u898b\u539f\u56e0\u5982\u4e0b\uff1a<\/p>\n<div class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 50px\">\n<colgroup>\n<col style=\"min-width: 25px\">\n<col style=\"min-width: 25px\">\n<\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u7db2\u57df\u89e3\u6790\u932f\u8aa4\u5e38\u898b\u539f\u56e0<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u8aaa\u660e<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>A\u7d00\u9304\u8a2d\u5b9a\u932f\u8aa4<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>IP\u4f4d\u5740\u586b\u5beb\u932f\u8aa4\u6216\u6307\u5411\u4e0d\u5b58\u5728\u7684\u4f3a\u670d\u5668\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>CNAME\u8a2d\u5b9a\u885d\u7a81<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5225\u540d\u8a2d\u5b9a\u932f\u8aa4\u6703\u9020\u6210\u89e3\u6790\u5faa\u74b0\u6216\u7570\u5e38\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>MX\u7d00\u9304\u7f3a\u5931<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u90f5\u4ef6\u89e3\u6790\u932f\u8aa4\u6703\u5c0e\u81f4\u4fe1\u7bb1\u529f\u80fd\u7570\u5e38\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>TTL\u8a2d\u5b9a\u4e0d\u7576<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>TTL\u904e\u9577\u66f4\u65b0\u6162\uff0c\u904e\u77ed\u5247\u89e3\u6790\u8acb\u6c42\u904e\u65bc\u983b\u7e41\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>DNS\u670d\u52d9\u5546\u7570\u5e38<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>DNS\u670d\u52d9\u5546\u81ea\u8eab\u51fa\u73fe\u670d\u52d9\u6545\u969c\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u89e3\u6790\u672a\u751f\u6548<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u8a2d\u5b9a\u4fee\u6539\u9700\u7b49\u5f85\u66f4\u9577\u6642\u9593\u751f\u6548\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5340\u57df\u50b3\u8f38\u932f\u8aa4<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>DNS\u4f3a\u670d\u5668\u9593\u8cc7\u6599\u540c\u6b65\u51fa\u73fe\u554f\u984c\u3002<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3>Web\u4f3a\u670d\u5668\u865b\u64ec\u4e3b\u6a5f\u554f\u984c<\/h3>\n<p>Web\u4f3a\u670d\u5668\u900f\u904e\u865b\u64ec\u4e3b\u6a5f\u5be6\u73fe\u55aeIP\u642d\u8f09\u591a\u500b\u7db2\u57df\uff0c\u865b\u64ec\u4e3b\u6a5f\u8a2d\u5b9a\u932f\u8aa4\u6703\u76f4\u63a5\u5c0e\u81f4\u7570\u5e38\uff1aIP\u53ef\u5b58\u53d6\uff0c\u7db2\u57df\u7121\u6cd5\u958b\u555f\u3002\u4f8b\u5982\u672a\u5c07\u7db2\u57df\u65b0\u589e\u81f3\u4f3a\u670d\u5668\u8a2d\u5b9a\u6e05\u55ae\uff0c\u4f3a\u670d\u5668\u5c07\u7121\u6cd5\u8b58\u5225\u8acb\u6c42\u3002\u5efa\u8b70\u6aa2\u67e5\u4f3a\u670d\u5668\u865b\u64ec\u4e3b\u6a5f\u8a2d\u5b9a\u3002<\/p>\n<h3>\u7db2\u57df\u904e\u671f\u6216\u88ab\u5c01\u9396<\/h3>\n<p>\u7db2\u57df\u9700\u4fdd\u6301\u6709\u6548\u72c0\u614b\u624d\u53ef\u6b63\u5e38\u4f7f\u7528\uff0c\u82e5\u7db2\u57df\u904e\u671f\u6216\u88ab\u5c01\u9396\uff0c\u700f\u89bd\u5668\u5c07\u7121\u6cd5\u958b\u555f\uff0c\u50c5\u4f3a\u670d\u5668IP\u53ef\u5b58\u53d6\uff08\u56e0\u4f3a\u670d\u5668\u6b63\u5e38\u904b\u884c\uff09\uff0c\u4f46\u7db2\u57df\u5df2\u4e0d\u518d\u6307\u5411\u8a72\u4f3a\u670d\u5668\u3002<br \/>\n\u53ef\u5728\u7db2\u57df\u8a3b\u518a\u5546\u5e73\u53f0\u67e5\u8a62\u7db2\u57df\u72c0\u614b\uff0c\u63d0\u524d\u7e8c\u8cbb\u907f\u514d\u7db2\u7ad9\u505c\u904b\uff1b\u82e5\u7db2\u57df\u88ab\u5c01\u9396\uff0c\u9700\u806f\u7e6b\u670d\u52d9\u5546\u8655\u7406\u3002<\/p>\n<h2>\u7db2\u8def\u8207\u9632\u706b\u7246\u9650\u5236<\/h2>\n<h3>\u9632\u706b\u7246\u8207\u71df\u904b\u5546\u5c01\u9396<\/h3>\n<p>\u9632\u706b\u7246\u6216\u7db2\u969b\u7db2\u8def\u670d\u52d9\u4f9b\u61c9\u5546\uff08ISP\uff09\u53ef\u80fd\u5c01\u9396\u7db2\u57df\u5b58\u53d6\uff0c\u539f\u56e0\u591a\u6a23\u3002\u90e8\u5206\u9632\u706b\u7246\u6703\u900f\u904e\u898f\u5247\u8b58\u5225\u8acb\u6c42\u4e2d\u7684\u7db2\u57df\uff0c\u5c01\u9396\u7279\u5b9a\u7db2\u57df\u4ee5\u4fdd\u969c\u5b89\u5168\u6216\u9075\u5b88\u4f01\u696d\u7b56\u7565\uff1b\u71df\u904b\u5546\u4e5f\u6703\u4f9d\u64da\u7576\u5730\u6cd5\u898f\u5c01\u9396\u9055\u898f\u6216\u6709\u5bb3\u5167\u5bb9\u3002<br \/>\n\u9019\u7a2e\u60c5\u6cc1\u4e0b\u5c31\u6703\u51fa\u73fe<strong>IP\u53ef\u5b58\u53d6\u3001\u7db2\u57df\u7121\u6cd5\u958b\u555f<\/strong>\u7684\u73fe\u8c61\uff0c\u56e0\u70ba\u9632\u706b\u7246\u6216\u71df\u904b\u5546\u50c5\u9a57\u8b49\u7db2\u57df\uff0c\u672a\u6514\u622aIP\u8acb\u6c42\u3002<\/p>\n<h3>ICMP\u8207HTTP\u5b58\u53d6\u7684\u5340\u5225<\/h3>\n<p>\u5f88\u591a\u4eba\u7528`ping`\u6307\u4ee4\u6e2c\u8a66\u9023\u901a\u6027\uff0c\u8a72\u6307\u4ee4\u900f\u904e<strong>\u7db2\u969b\u7db2\u8def\u63a7\u5236\u8a0a\u606f\u5354\u5b9a\uff08ICMP\uff09<\/strong>\u5411\u4f3a\u670d\u5668\u767c\u9001\u5c01\u5305\uff0c\u6536\u5230\u56de\u8986\u50c5\u8aaa\u660e\u8a2d\u5099\u53ef\u9023\u901a\u4f3a\u670d\u5668\uff0c\u4e0d\u4ee3\u8868\u700f\u89bd\u5668\u80fd\u6b63\u5e38\u958b\u555f\u7db2\u7ad9\u3002<br \/>\n\u700f\u89bd\u5668\u4f7f\u7528HTTP\/HTTPS\u5354\u5b9a\uff0c\u8207ICMP\u539f\u7406\u4e0d\u540c\uff0c\u9632\u706b\u7246\u53ef\u55ae\u7368\u5c01\u9396HTTP\/HTTPS\u6d41\u91cf\uff0c\u540c\u6642\u653e\u884cICMP\u5c01\u5305\u3002\u56e0\u6b64\u6703\u51fa\u73feping\u901a\u4f3a\u670d\u5668\u3001\u7db2\u7ad9\u537b\u7121\u6cd5\u8f09\u5165\u7684\u60c5\u6cc1\u3002<\/p>\n<ul>\n<li>\n<p><strong>Ping\uff08ICMP\uff09\uff1a<\/strong>\u50c5\u6aa2\u6e2c\u4f3a\u670d\u5668\u662f\u5426\u53ef\u9023\u901a\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u700f\u89bd\u5668\uff08HTTP\/HTTPS\uff09\uff1a<\/strong>\u8f09\u5165\u7db2\u7ad9\u5b8c\u6574\u5167\u5bb9\u3002<\/p>\n<\/li>\n<\/ul>\n<h3>\u7db2\u57df\u8207IP\u5b58\u53d6\u898f\u5247\u5dee\u7570<\/h3>\n<p>\u7db2\u8def\u8a2d\u5099\u5c0d\u57fa\u65bc\u7db2\u57df\u548c\u57fa\u65bcIP\u7684\u8acb\u6c42\u57f7\u884c\u4e0d\u540c\u898f\u5247\uff0c\u6838\u5fc3\u5340\u5225\u5982\u4e0b\u8868\uff1a<\/p>\n<div class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 75px\">\n<colgroup>\n<col style=\"min-width: 25px\">\n<col style=\"min-width: 25px\">\n<col style=\"min-width: 25px\">\n<\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u7279\u6027<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u670d\u52d9\uff08\u57fa\u65bcIP\uff09<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u8def\u7531\uff08\u57fa\u65bc\u7db2\u57df\uff09<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>OSI\u5c64\u7d1a<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u7b2c4\u5c64<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u7b2c7\u5c64<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6a19\u8b58\u65b9\u5f0f<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4f7f\u7528IP\u4f4d\u5740\u8207\u9023\u63a5\u57e0<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4f7f\u7528\u7db2\u57df\u8207\u8def\u5f91<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6838\u5fc3\u529f\u80fd<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u62bd\u8c61\u61c9\u7528\u5f8c\u7aef\u670d\u52d9<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u7ba1\u7406API\u7269\u4ef6\u8207\u670d\u52d9\u805a\u5408<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5354\u5b9a\u652f\u63f4<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u652f\u63f4TCP\u3001UDP<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u50c5\u652f\u63f4HTTP\u3001HTTPS\u3001HTTP2<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>IP\u5171\u7528<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u55ae\u670d\u52d9\u9700\u7368\u7acbIP<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u591a\u7db2\u57df\u53ef\u5171\u7528\u540c\u4e00IP<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6d41\u91cf\u8def\u7531<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4f9d\u64daIP\u8207\u9023\u63a5\u57e0\u8def\u7531<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4f9d\u64da\u7db2\u57df\u8207\u8def\u5f91\u8f49\u767c\u8acb\u6c42<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u57fa\u65bc\u7db2\u57df\u7684\u6d41\u91cf\u898f\u5247\u5de5\u4f5c\u5728\u66f4\u9ad8\u7db2\u8def\u5c64\u7d1a\uff0c\u900f\u904e\u7db2\u57df\u8abf\u5ea6\u8cc7\u6599\uff1bIP\u898f\u5247\u50c5\u4f9d\u8cf4\u4f4d\u5740\u548c\u9023\u63a5\u57e0\uff0c\u56e0\u6b64\u7db2\u8def\u53ef\u55ae\u7368\u5c01\u9396\u5176\u4e2d\u4e00\u7a2e\u5b58\u53d6\u65b9\u5f0f\u3002\u9047\u5230\u6b64\u985e\u554f\u984c\uff0c\u9700\u540c\u6642\u6aa2\u67e5\u9632\u706b\u7246\u8207\u8def\u7531\u5668\u7684\u5169\u985e\u898f\u5247\u3002<\/p>\n<h2>IP\u53ef\u5b58\u53d6\u6642\u7684\u6545\u969c\u5075\u932f<\/h2>\n<p>\u82e5\u51fa\u73fe<strong>IP\u53ef\u5b58\u53d6\u4f46\u7db2\u57df\u7121\u6cd5\u958b\u555f<\/strong>\u7684\u60c5\u6cc1\uff0c\u53ef\u6309\u6b65\u9a5f\u9010\u6b65\u6392\u67e5\uff0c\u7121\u9700\u5c08\u696d\u6280\u8853\u5373\u53ef\u64cd\u4f5c\uff0c\u85c9\u52a9\u7c21\u6613\u5de5\u5177\u5c31\u80fd\u5b9a\u4f4d\u554f\u984c\u3002<\/p>\n<h3>\u6aa2\u67e5DNS\u89e3\u6790\u7d00\u9304<\/h3>\n<p>\u9996\u5148\u6838\u67e5DNS\u89e3\u6790\u7d00\u9304\uff0c\u78ba\u8a8d\u7db2\u57df\u6307\u5411\u6b63\u78ba\u7684<strong>IP\u4f4d\u5740<\/strong>\uff0c\u53ef\u900f\u904e\u547d\u4ee4\u5217\u5de5\u5177\u6216\u7dda\u4e0a\u5e73\u53f0\u6bd4\u5c0d\u7d50\u679c\u3002<\/p>\n<ul>\n<li>\n<p>DNS\u7d00\u9304\u6aa2\u6e2c\u53ef\u5224\u65b7\u662f\u5426\u5b58\u5728DNS\u6c59\u67d3\uff0c\u6bd4\u5c0d\u672c\u5730\u8207\u516c\u5171\u89e3\u6790\u4f3a\u670d\u5668\u7d50\u679c\u5373\u53ef\u8b58\u5225\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528`nslookup`\u3001`dig`\u7b49\u5de5\u5177\u67e5\u8a62\u516c\u5171\u89e3\u6790\u4f3a\u670d\u5668\uff0c\u5982\u8c37\u6b4c8.8.8.8\u3001Cloudflare 1.1.1.1\u3002<\/p>\n<\/li>\n<li>\n<p>\u82e5\u7d50\u679c\u4e0d\u4e00\u81f4\uff0c\u8aaa\u660e\u5b58\u5728\u89e3\u6790\u7ac4\u6539\u6216\u8a2d\u5b9a\u932f\u8aa4\u3002<\/p>\n<\/li>\n<li>\n<p>\u7dda\u4e0a\u6aa2\u6e2c\u5de5\u5177\u53ef\u4fbf\u6377\u6bd4\u5c0d\u7d50\u679c\u3001\u5b9a\u4f4d\u6545\u969c\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong>DNS\u8a3a\u65b7\u63a8\u85a6\u6b65\u9a5f\uff1a<\/strong><\/p>\n<ol>\n<li>\n<p>\u4f7f\u7528`nslookup`\u6216`dig`\u67e5\u8a62\u672c\u5730\u8a2d\u5099\u7684DNS\u89e3\u6790\u7d50\u679c\u3002<\/p>\n<\/li>\n<li>\n<p>\u5411\u591a\u500b\u516c\u5171\u89e3\u6790\u4f3a\u670d\u5668\u767c\u8d77\u67e5\u8a62\uff0c\u6bd4\u5c0d\u5dee\u7570\u3002<\/p>\n<\/li>\n<li>\n<p>\u85c9\u52a9\u7dda\u4e0a\u5de5\u5177\u6bd4\u5c0d\u672c\u5730\u8207\u6b0a\u5a01\u89e3\u6790\u7d50\u679c\u3002<\/p>\n<\/li>\n<\/ol>\n<h3>\u6e05\u9664DNS\u5feb\u53d6<\/h3>\n<p>\u8a2d\u5099\u6703\u7559\u5b58\u820aDNS\u8cc7\u8a0a\uff0c\u5feb\u53d6\u904e\u671f\u6703\u5c0e\u81f4\u5373\u4fbf<strong>IP\u53ef\u5b58\u53d6<\/strong>\uff0c\u7db2\u57df\u4ecd\u7121\u6cd5\u958b\u555f\u3002\u6e05\u9664DNS\u5feb\u53d6\u53ef\u8b93\u8a2d\u5099\u91cd\u65b0\u53d6\u5f97\u6700\u65b0\u89e3\u6790\u8cc7\u6599\u3002<\/p>\n<p><strong>DNS\u5feb\u53d6\u6e05\u9664\u65b9\u6cd5\uff1a<\/strong><\/p>\n<div class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 50px\">\n<colgroup>\n<col style=\"min-width: 25px\">\n<col style=\"min-width: 25px\">\n<\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u4f5c\u696d\u7cfb\u7d71<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u6e05\u9664DNS\u5feb\u53d6\u6307\u4ee4<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Windows<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p><code>ipconfig \/flushdns<\/code><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Mac<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p><code>sudo dscacheutil -flushcache<\/code><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Mac\uff08\u5099\u7528\uff09<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p><code>sudo killall -HUP mDNSResponder<\/code><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u958b\u555f\u7d42\u7aef\u6a5f\u6216\u547d\u4ee4\u63d0\u793a\u5b57\u5143\uff0c\u8f38\u5165\u5c0d\u61c9\u7cfb\u7d71\u7684\u6307\u4ee4\uff0c\u5373\u53ef\u8b93\u8a2d\u5099\u53d6\u5f97\u6700\u65b0DNS\u8cc7\u6599\u3002<\/p>\n<h3>\u6838\u67e5\u7db2\u57df\u8207\u4f3a\u670d\u5668\u8a2d\u5b9a<\/h3>\n<p>\u6aa2\u67e5\u4f3a\u670d\u5668\u8a2d\u5b9a\uff0c\u932f\u8aa4\u8a2d\u5b9a\u6703\u5c0e\u81f4\u7db2\u57df\u5b58\u53d6\u7570\u5e38\uff0c\u800c<strong>IP\u53ef\u6b63\u5e38\u5b58\u53d6<\/strong>\u3002<\/p>\n<ul>\n<li>\n<p>\u78ba\u4fdd\u89e3\u6790\u7d00\u9304\u6b63\u78ba\uff0c\u6838\u67e5A\u7d00\u9304\u3001MX\u7d00\u9304\u6307\u5411\u7121\u8aa4\u3002<\/p>\n<\/li>\n<li>\n<p>\u6aa2\u67e5\u7db2\u57df\u72c0\u614b\uff0c\u78ba\u8a8d\u7db2\u57df\u6709\u6548\u3001\u672a\u904e\u671f\u6216\u88ab\u5c01\u9396\u3002<\/p>\n<\/li>\n<li>\n<p>\u82e5\u5b58\u5728\u5feb\u53d6\u554f\u984c\uff0c\u5237\u65b0\u672c\u5730\u89e3\u6790\u5feb\u53d6\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528`nslookup`\u6aa2\u6e2cDNS\uff0c\u900f\u904e`curl ifconfig.me`\u67e5\u8a62\u4f3a\u670d\u5668\u516c\u7db2<strong>IP\u4f4d\u5740<\/strong>\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong>\u7db2\u57df\u8207\u4f3a\u670d\u5668\u6838\u67e5\u6e05\u55ae\uff1a<\/strong><\/p>\n<ul>\n<li>\n<p>\u78ba\u8a8d\u7db2\u57df\u5df2\u5b8c\u6210\u8a3b\u518a\u4e26\u6b63\u5e38\u7e8c\u8cbb\u3002<\/p>\n<\/li>\n<li>\n<p>\u6838\u5c0d\u89e3\u6790\u7d00\u9304\u6b63\u78ba\u6027\u3002<\/p>\n<\/li>\n<li>\n<p>\u6aa2\u67e5\u4f3a\u670d\u5668\u8a2d\u5b9a\uff0c\u5305\u542b\u865b\u64ec\u4e3b\u6a5f\u8a2d\u5b9a\u3002<\/p>\n<\/li>\n<li>\n<p>\u78ba\u8a8d\u7db2\u57df\u5df2\u65b0\u589e\u81f3\u4f3a\u670d\u5668\u865b\u64ec\u4e3b\u6a5f\u8a2d\u5b9a\u6a94\u3002<\/p>\n<\/li>\n<\/ul>\n<h3>\u6aa2\u67e5\u9632\u706b\u7246\u8207\u7db2\u8def\u898f\u5247<\/h3>\n<p>\u9632\u706b\u7246\u8207\u7db2\u8def\u8a2d\u5099\u53ef\u80fd\u5c01\u9396\u7db2\u57df\u6d41\u91cf\uff0c\u537b\u653e\u884cIP\u8acb\u6c42\uff0c\u9700\u6aa2\u67e5\u9632\u706b\u7246\u8207\u8def\u7531\u5668\u8a2d\u5b9a\u3002<\/p>\n<ul>\n<li>\n<p>\u67e5\u770b\u662f\u5426\u5b58\u5728\u5c01\u9396\u7db2\u57df\u6216\u7279\u5b9aURL\u7684\u898f\u5247\u3002<\/p>\n<\/li>\n<li>\n<p>\u6aa2\u67e5\u662f\u5426\u6709\u904e\u6ffeHTTP\/HTTPS\u6d41\u91cf\u7684\u898f\u5247\u3002<\/p>\n<\/li>\n<li>\n<p>\u78ba\u8a8d\u7db2\u8def\u672a\u56e0\u7b56\u7565\u6216\u5b89\u5168\u539f\u56e0\u5c01\u9396\u7db2\u57df\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong>\u7db2\u8def\u554f\u984c\u8a3a\u65b7\u5de5\u5177\uff1a<\/strong><\/p>\n<ul>\n<li>\n<p>\u4f7f\u7528`nslookup`\u3001`dig`\u6aa2\u6e2cDNS\u89e3\u6790\u3002<\/p>\n<\/li>\n<li>\n<p>\u6aa2\u67e5\u89e3\u6790\u7d00\u9304\u8a2d\u5b9a\u662f\u5426\u6b63\u78ba\u3002<\/p>\n<\/li>\n<li>\n<p>\u6e05\u9664\u672c\u5730\u5feb\u53d6\u522a\u9664\u904e\u671f\u89e3\u6790\u8cc7\u8a0a\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong>\u5feb\u901f\u6392\u67e5\u8868<\/strong><\/p>\n<div class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 75px\">\n<colgroup>\n<col style=\"min-width: 25px\">\n<col style=\"min-width: 25px\">\n<col style=\"min-width: 25px\">\n<\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u6b65\u9a5f<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u5de5\u5177\/\u6307\u4ee4<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u7528\u9014<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6aa2\u67e5DNS\u7d00\u9304<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p><code>nslookup<\/code>\u3001<code>dig<\/code><\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5b9a\u4f4dDNS\u932f\u8aa4<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6e05\u9664DNS\u5feb\u53d6<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u7cfb\u7d71\u5c08\u5c6c\u6307\u4ee4<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u522a\u9664\u820aDNS\u8cc7\u8a0a<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6838\u67e5\u7db2\u57df\u72c0\u614b<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u7db2\u57df\u8a3b\u518a\u5546\u5f8c\u53f0<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u78ba\u8a8d\u7db2\u57df\u6709\u6548<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6aa2\u67e5\u4f3a\u670d\u5668\u8a2d\u5b9a<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u865b\u64ec\u4e3b\u6a5f\u8a2d\u5b9a<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u78ba\u8a8d\u7db2\u57df\u5df2\u7d81\u5b9a<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6aa2\u6e2c\u7db2\u8def\u898f\u5247<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u9632\u706b\u7246\/\u8def\u7531\u5668\u5f8c\u53f0<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u67e5\u627e\u7db2\u57df\u5c01\u9396\u898f\u5247<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u4f60\u53ef\u80fd\u6703\u7591\u60d1\uff0c\u70ba\u4f55\u4f7f\u7528\u6578\u5b57\u5f62\u5f0f\u7684IP\u80fd\u5b58\u53d6\u7db2\u7ad9\uff0c\u8f38\u5165\u7db2\u57df\u537b\u7121\u6cd5\u958b\u555f\u3002\u9019\u500b\u554f\u984c\u5e38\u5e38\u8b93\u4eba\u56f0\u60d1\u3002\u5f88\u591a\u6642\u5019IP\u53ef\u6b63\u5e38\u5b58 [&#8230;]<\/p>\n<p><a class=\"btn btn-secondary understrap-read-more-link\" href=\"https:\/\/www.varidata.com\/zh-tw\/blog-tc\/why-ip-can-be-accessed-but-the-domain-cannot-be-opened\/\">Read More&#8230;<\/a><\/p>\n","protected":false},"author":12,"featured_media":30546,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[267],"tags":[],"class_list":["post-30549","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog-tc"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u70ba\u4f55IP\u53ef\u5b58\u53d6\u4f46\u7db2\u57df\u7121\u6cd5\u958b\u555f<\/title>\n<meta name=\"description\" content=\"IP\u53ef\u6b63\u5e38\u5b58\u53d6\u4f46\u7db2\u57df\u7121\u6cd5\u958b\u555f\uff0c\u901a\u5e38\u7531\u5e38\u898bDNS\u932f\u8aa4\u3001\u8a2d\u5b9a\u4e0d\u7576\u6216\u9632\u706b\u7246\u898f\u5247\u5c0e\u81f4\u3002\u6559\u4f60\u8f15\u9b06\u89e3\u6c7a\u7db2\u57df\u5b58\u53d6\u6545\u969c\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, 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\/>\n\t<meta property=\"og:image:height\" content=\"428\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<script type=\"application\/ld+json\" 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