{"id":29864,"date":"2026-01-28T15:32:32","date_gmt":"2026-01-28T07:32:32","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-tw\/windows-c-socket-server-public-ip-connection-guide\/"},"modified":"2026-01-28T15:35:50","modified_gmt":"2026-01-28T07:35:50","slug":"windows-c-socket-server-public-ip-connection-guide","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-tw\/blog-tc\/windows-c-socket-server-public-ip-connection-guide\/","title":{"rendered":"\u5982\u4f55\u89e3\u6c7aWindows C Socket \u4f3a\u670d\u5668\u516c\u7db2 IP \u9023\u7dda\u554f\u984c"},"content":{"rendered":"<style>\n    table, th, td {\n        border: 1px solid black;\n        border-collapse: collapse;\n    }\n<\/style>\n<p>\u5728\u4f7f\u7528 Windows \u7cfb\u7d71\u7684 C socket \u4f3a\u670d\u5668\u6642\uff0c\u7279\u5225\u662f\u5728\u4f7f\u7528<a target=\"_self\" href=\"https:\/\/www.varidata.com\/zh-tw\/server\/los-angeles\/cn2\/\">\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528<\/a>\u4f9b\u61c9\u5546\u6642\uff0c\u7d93\u5e38\u6703\u9047\u5230\u9023\u7dda\u554f\u984c\u3002\u5927\u591a\u6578\u554f\u984c\u6e90\u65bc\u9632\u706b\u7246\u963b\u64cb\u3001\u7db2\u8def\u5e72\u64fe\u6216\u7a0b\u5f0f\u78bc\u932f\u8aa4\u3002\u60a8\u53ef\u80fd\u6703\u56e0\u70ba\u5c01\u5305\u907a\u5931\u3001TCP \u6a19\u982d\u53c3\u6578\u4e0d\u6b63\u78ba\u6216\u61c9\u7528\u7a0b\u5f0f\u7a81\u7136\u91cd\u7f6e\u800c\u5c0e\u81f4\u9023\u7dda\u5931\u6557\u3002\u5982\u679c\u6309\u6b65\u9a5f\u6aa2\u67e5\u9019\u4e9b\u554f\u984c\uff0c\u5c31\u80fd\u5feb\u901f\u627e\u51fa\u554f\u984c\u6240\u5728\u4e26\u9032\u884c\u4fee\u5fa9\u3002<\/p>\n<ul>\n<li>\n<p>\u5c01\u5305\u907a\u5931\u53ef\u80fd\u5c0e\u81f4\u9023\u7dda\u4e2d\u65b7\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e0d\u6b63\u78ba\u7684 TCP \u6a19\u982d\u53ef\u80fd\u5c0e\u81f4\u5c01\u5305\u88ab\u62d2\u7d55\u3002<\/p>\n<\/li>\n<li>\n<p>\u61c9\u7528\u7a0b\u5f0f\u91cd\u7f6e\u901a\u5e38\u767c\u751f\u5728\u8cc7\u6599\u50b3\u8f38\u5931\u6557\u4e4b\u5f8c\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u900f\u904e\u4f7f\u7528\u7cfb\u7d71\u5316\u7684\u65b9\u6cd5\uff0c\u60a8\u53ef\u4ee5\u63d0\u9ad8\u89e3\u6c7a\u9023\u7dda\u554f\u984c\u7684\u6548\u7387\u3002<\/p>\n<h2>\u4e3b\u8981\u8981\u9ede<\/h2>\n<ul>\n<li>\n<p>\u6aa2\u67e5\u5e38\u898b\u932f\u8aa4\u8a0a\u606f\u5982 WSAENOTCONN \u548c WSAECONNREFUSED \u4f86\u8b58\u5225\u9023\u7dda\u554f\u984c\u3002<\/p>\n<\/li>\n<li>\n<p>\u78ba\u4fdd Windows \u9632\u706b\u7246\u5141\u8a31 C socket \u4f3a\u670d\u5668\u4f7f\u7528\u7684\u9023\u63a5\u57e0\u4e0a\u7684\u6d41\u91cf\u4ee5\u9632\u6b62\u963b\u64cb\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728\u8def\u7531\u5668\u4e0a\u8a2d\u5b9a\u9023\u63a5\u57e0\u8f49\u767c\u4ee5\u555f\u7528\u5c0d C socket \u4f3a\u670d\u5668\u7684\u5916\u90e8\u5b58\u53d6\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528 PowerShell \u548c telnet \u7b49\u5de5\u5177\u6e2c\u8a66\u4f3a\u670d\u5668\u7684\u53ef\u5b58\u53d6\u6027\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728\u9032\u884c\u9032\u4e00\u6b65\u6545\u969c\u6392\u9664\u4e4b\u524d\uff0c\u59cb\u7d42\u9a57\u8b49\u4f3a\u670d\u5668\u662f\u5426\u6b63\u5728\u57f7\u884c\u4e26\u7d81\u5b9a\u5230\u6b63\u78ba\u7684 IP \u4f4d\u5740\u548c\u9023\u63a5\u57e0\u3002<\/p>\n<\/li>\n<\/ul>\n<h2>\u5e38\u898b\u9023\u7dda\u554f\u984c<\/h2>\n<h3>\u5178\u578b\u932f\u8aa4\u8a0a\u606f<\/h3>\n<p>\u7576\u60a8\u5617\u8a66\u9023\u7dda\u5230 C socket \u4f3a\u670d\u5668\u6642\uff0c\u53ef\u80fd\u6703\u770b\u5230\u5e7e\u7a2e\u932f\u8aa4\u8a0a\u606f\u3002\u9019\u4e9b\u8a0a\u606f\u53ef\u4ee5\u5e6b\u52a9\u60a8\u7406\u89e3\u51fa\u73fe\u4e86\u4ec0\u9ebc\u554f\u984c\u3002\u4e00\u4e9b\u6700\u5e38\u898b\u7684\u932f\u8aa4\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\n<p><strong>WSAENOBUFS (10055):<\/strong> \u6b64\u932f\u8aa4\u8868\u793a\u7cfb\u7d71\u7de9\u885d\u5340\u7a7a\u9593\u5df2\u7528\u5b8c\u6216\u4f47\u5217\u5df2\u6eff\u3002\u60a8\u53ef\u80fd\u9700\u8981\u91cd\u65b0\u555f\u52d5\u96fb\u8166\u4f86\u89e3\u6c7a\u6b64\u554f\u984c\u3002<\/p>\n<\/li>\n<li>\n<p><strong>WSAENOTCONN (10057):<\/strong> \u6b64\u8a0a\u606f\u544a\u8a34\u60a8\u901a\u8a0a\u7aef\u672a\u9023\u7dda\u3002<\/p>\n<\/li>\n<li>\n<p><strong>WSAESHUTDOWN (10058):<\/strong> \u901a\u8a0a\u7aef\u95dc\u9589\u5f8c\u7121\u6cd5\u767c\u9001\u8cc7\u6599\u3002<\/p>\n<\/li>\n<li>\n<p><strong>WSAETIMEDOUT (10060):<\/strong> \u9023\u7dda\u903e\u6642\uff0c\u901a\u5e38\u662f\u56e0\u70ba\u4f3a\u670d\u5668\u6c92\u6709\u56de\u61c9\u3002<\/p>\n<\/li>\n<li>\n<p><strong>WSAECONNREFUSED (10061):<\/strong> \u4f3a\u670d\u5668\u62d2\u7d55\u9023\u7dda\u3002<\/p>\n<\/li>\n<li>\n<p><strong>WSAEHOSTUNREACH (10065):<\/strong> \u7121\u6cd5\u627e\u5230\u5230\u4e3b\u6a5f\u7684\u8def\u7531\u3002<\/p>\n<\/li>\n<\/ul>\n<blockquote>\n<p>\ud83d\udca1 \u63d0\u793a: \u4f7f\u7528 <code>netstat<\/code> \u6216 <code>PerfMon<\/code> \u7b49\u5de5\u5177\u4f86\u76e3\u63a7\u7db2\u8def\u4e26\u53ca\u65e9\u767c\u73fe\u9019\u4e9b\u932f\u8aa4\u3002<\/p>\n<\/blockquote>\n<h3>\u7db2\u8def\u963b\u585e\u7684\u8de1\u8c61<\/h3>\n<p>\u7db2\u8def\u963b\u585e\u53ef\u80fd\u6703\u963b\u6b62\u7528\u6236\u7aef\u9023\u7dda\u5230\u4f3a\u670d\u5668\u3002\u60a8\u53ef\u80fd\u6703\u6ce8\u610f\u5230\u9019\u4e9b\u8de1\u8c61\uff1a<\/p>\n<ul>\n<li>\n<p>\u7121\u6cd5 ping \u901a\u4f3a\u670d\u5668\u7684\u516c\u7db2 IP \u4f4d\u5740\u3002<\/p>\n<\/li>\n<li>\n<p>\u9023\u7dda\u903e\u6642\u6c92\u6709\u4efb\u4f55\u56de\u61c9\u3002<\/p>\n<\/li>\n<li>\n<p>\u53cd\u8986\u51fa\u73fe\u300c\u9023\u7dda\u88ab\u62d2\u7d55\u300d\u932f\u8aa4\u3002<\/p>\n<\/li>\n<li>\n<p>\u540c\u4e00\u7db2\u8def\u4e0a\u7684\u5176\u4ed6\u88dd\u7f6e\u4e5f\u7121\u6cd5\u9023\u7dda\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5982\u679c\u60a8\u770b\u5230\u9019\u4e9b\u8de1\u8c61\uff0c\u8acb\u6aa2\u67e5\u9632\u706b\u7246\u8a2d\u5b9a\u548c\u8def\u7531\u5668\u914d\u7f6e\u3002\u6709\u6642\uff0c\u7db2\u969b\u7db2\u8def\u670d\u52d9\u63d0\u4f9b\u5546\u6703\u5c01\u9396\u67d0\u4e9b\u9023\u63a5\u57e0\u3002\u5f9e\u4e0d\u540c\u7684\u7db2\u8def\u9032\u884c\u6e2c\u8a66\u53ef\u4ee5\u5e6b\u52a9\u60a8\u78ba\u5b9a\u554f\u984c\u662f\u672c\u5730\u7684\u9084\u662f\u5916\u90e8\u7684\u3002<\/p>\n<h3>\u7406\u89e3\u932f\u8aa4\u4ee3\u78bc<\/h3>\n<p>\u932f\u8aa4\u4ee3\u78bc\u80fd\u8b93\u60a8\u4e86\u89e3\u5f8c\u53f0\u767c\u751f\u4e86\u4ec0\u9ebc\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u4ee3\u78bc\u53ca\u5176\u542b\u7fa9\u7684\u8868\u683c\uff1a<\/p>\n<div fullwidth=\"\" 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>\u4ee3\u78bc<\/th>\n<th>\u8a0a\u606f<\/th>\n<th>\u53ef\u80fd\u7684\u89e3\u91cb<\/th>\n<\/tr>\n<tr>\n<td>0<\/td>\n<td>\u50b3\u8f38\u672a\u77e5<\/td>\n<td>\u5728\u6b63\u5e38\u60c5\u6cc1\u4e0b\u4e0d\u61c9\u8a72\u767c\u751f\u3002<\/td>\n<\/tr>\n<tr>\n<td>1<\/td>\n<td>\u5de5\u4f5c\u968e\u6bb5 ID \u672a\u77e5<\/td>\n<td>\u901a\u5e38\u8868\u793a\u672a\u555f\u7528\u5de5\u4f5c\u968e\u6bb5\u4fdd\u6301\u3002<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>\u4ea4\u63e1\u65b9\u6cd5\u932f\u8aa4<\/td>\n<td>\u5728\u6b63\u5e38\u60c5\u6cc1\u4e0b\u4e0d\u61c9\u8a72\u767c\u751f\u3002<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>\u932f\u8aa4\u8acb\u6c42<\/td>\n<td>\u901a\u5e38\u610f\u5473\u8457\u4f3a\u670d\u5668\u524d\u9762\u7684\u4ee3\u7406\u672a\u6b63\u78ba\u8f49\u767c WebSocket \u6a19\u982d\u3002<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>\u7981\u6b62\u5b58\u53d6<\/td>\n<td>\u9023\u7dda\u88ab allowRequest() \u65b9\u6cd5\u62d2\u7d55\u3002<\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>\u4e0d\u652f\u63f4\u7684\u5354\u5b9a\u7248\u672c<\/td>\n<td>\u7528\u6236\u7aef\u7248\u672c\u8207\u4f3a\u670d\u5668\u4e0d\u76f8\u5bb9\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u7576 C socket \u4f3a\u670d\u5668\u9023\u7dda\u5931\u6557\u6642\uff0c\u60a8\u61c9\u8a72\u59cb\u7d42\u6aa2\u67e5\u932f\u8aa4\u4ee3\u78bc\u3002\u9019\u4e00\u6b65\u53ef\u4ee5\u5e6b\u52a9\u60a8\u5224\u65b7\u554f\u984c\u662f\u4f86\u81ea\u7a0b\u5f0f\u78bc\u3001\u7db2\u8def\u9084\u662f\u4f3a\u670d\u5668\u8a2d\u5b9a\u3002<\/p>\n<h2>C Socket \u4f3a\u670d\u5668\u9632\u706b\u7246\u548c\u9023\u63a5\u57e0\u6aa2\u67e5<\/h2>\n<h3>\u6aa2\u67e5 Windows \u9632\u706b\u7246\u898f\u5247<\/h3>\n<p>\u60a8\u9700\u8981\u78ba\u4fdd Windows \u9632\u706b\u7246\u6c92\u6709\u963b\u64cb C socket \u4f3a\u670d\u5668\u3002\u8a31\u591a\u9023\u7dda\u5931\u6557\u662f\u56e0\u70ba\u9632\u706b\u7246\u963b\u64cb\u4e86\u5165\u7ad9\u6d41\u91cf\u3002\u60a8\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9a5f\u6aa2\u67e5\u548c\u8abf\u6574\u9632\u706b\u7246\u8a2d\u5b9a\uff1a<\/p>\n<ol>\n<li>\n<p>\u5f9e\u958b\u59cb\u9078\u55ae\u6253\u958b<em>\u9032\u968e\u5b89\u5168\u6027 Windows \u9632\u706b\u7246<\/em>\u63a7\u5236\u53f0\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728\u5c0e\u89bd\u7a97\u683c\u4e2d\u9078\u64c7<strong>\u5165\u7ad9\u898f\u5247<\/strong>\u3002<\/p>\n<\/li>\n<li>\n<p>\u9ede\u64ca<strong>\u52d5\u4f5c<\/strong>\uff0c\u7136\u5f8c\u9078\u64c7<strong>\u65b0\u589e\u898f\u5247<\/strong>\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728<strong>\u898f\u5247\u985e\u578b<\/strong>\u9801\u9762\uff0c\u9078\u64c7<strong>\u81ea\u8a02<\/strong>\u4e26\u9ede\u64ca<strong>\u4e0b\u4e00\u6b65<\/strong>\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728<strong>\u7a0b\u5f0f<\/strong>\u9801\u9762\uff0c\u9078\u64c7<strong>\u6240\u6709\u7a0b\u5f0f<\/strong>\u4e26\u7e7c\u7e8c\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728<strong>\u901a\u8a0a\u5354\u5b9a\u548c\u9023\u63a5\u57e0<\/strong>\u9801\u9762\uff0c\u9078\u64c7 TCP \u6216 UDP\uff0c\u7136\u5f8c\u8f38\u5165 C socket \u4f3a\u670d\u5668\u4f7f\u7528\u7684\u9023\u63a5\u57e0\u865f\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728<strong>\u7bc4\u570d<\/strong>\u9801\u9762\uff0c\u6307\u5b9a\u53ef\u4ee5\u9023\u7dda\u7684 IP \u4f4d\u5740\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728<strong>\u52d5\u4f5c<\/strong>\u9801\u9762\uff0c\u9078\u64c7<strong>\u5141\u8a31\u9023\u7dda<\/strong>\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728<strong>\u8a2d\u5b9a\u6a94<\/strong>\u9801\u9762\uff0c\u9078\u64c7\u898f\u5247\u9069\u7528\u7684\u7db2\u8def\u4f4d\u7f6e\u985e\u578b\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728<strong>\u540d\u7a31<\/strong>\u9801\u9762\uff0c\u8f38\u5165\u540d\u7a31\u548c\u63cf\u8ff0\uff0c\u7136\u5f8c\u9ede\u64ca<strong>\u5b8c\u6210<\/strong>\u3002<\/p>\n<\/li>\n<\/ol>\n<blockquote>\n<p>\u26a0\ufe0f <strong>\u63d0\u793a\uff1a<\/strong>\u8a2d\u5b9a\u932f\u8aa4\u7684\u9632\u706b\u7246\u53ef\u80fd\u5c0e\u81f4 C socket \u4f3a\u670d\u5668\u65b7\u958b\u9023\u7dda\u6216\u62d2\u7d55\u65b0\u9023\u7dda\u3002\u5982\u679c\u60a8\u767c\u73fe\u983b\u7e41\u65b7\u958b\u9023\u7dda\uff0c\u8acb\u6aa2\u67e5\u9592\u7f6e\u903e\u6642\u8a2d\u5b9a\u4e26\u589e\u52a0 TCP keepalive \u5c01\u5305\u4ee5\u7dad\u6301\u7a69\u5b9a\u9023\u7dda\u3002<\/p>\n<\/blockquote>\n<p>\u60a8\u9084\u53ef\u4ee5\u4f7f\u7528\u5de5\u5177\u6aa2\u67e5\u9632\u706b\u7246\u662f\u5426\u963b\u64cb\u4e86\u60a8\u7684\u9023\u63a5\u57e0\u3002\u958b\u555f\u547d\u4ee4\u63d0\u793a\u5b57\u5143\u4e26\u57f7\u884c <code>netstat -an<\/code> \u67e5\u770b\u6d3b\u52d5\u9023\u7dda\u3002\u5f9e Microsoft Sysinternals \u7db2\u7ad9\u4e0b\u8f09 TcpView \u4f86\u67e5\u770b\u5373\u6642\u901a\u8a0a\u7aef\u6d3b\u52d5\u3002<\/p>\n<h3>\u8a2d\u5b9a\u9023\u63a5\u57e0\u8f49\u767c<\/h3>\n<p>\u5982\u679c\u60a8\u5e0c\u671b C socket \u4f3a\u670d\u5668\u63a5\u53d7\u4f86\u81ea\u672c\u5730\u7db2\u8def\u5916\u90e8\u7684\u9023\u7dda\uff0c\u5fc5\u9808\u5728\u8def\u7531\u5668\u4e0a\u8a2d\u5b9a\u9023\u63a5\u57e0\u8f49\u767c\u3002\u6b64\u7a0b\u5e8f\u5c07\u7279\u5b9a\u9023\u63a5\u57e0\u4e0a\u7684\u5165\u7ad9\u6d41\u91cf\u5c0e\u5411\u5230\u4f3a\u670d\u5668\u7684\u79c1\u6709 IP \u4f4d\u5740\u3002<\/p>\n<ul>\n<li>\n<p>\u767b\u5165\u8def\u7531\u5668\u7684\u7ba1\u7406\u9801\u9762\u3002<\/p>\n<\/li>\n<li>\n<p>\u627e\u5230\u9023\u63a5\u57e0\u8f49\u767c\u90e8\u5206\uff0c\u901a\u5e38\u7a31\u70ba\u300c\u865b\u64ec\u4f3a\u670d\u5668\u300d\u6216\u300cNAT\u300d\u3002<\/p>\n<\/li>\n<li>\n<p>\u70ba C socket \u4f3a\u670d\u5668\u4f7f\u7528\u7684\u9023\u63a5\u57e0\u65b0\u589e\u898f\u5247\u3002<\/p>\n<\/li>\n<li>\n<p>\u8f38\u5165\u4f3a\u670d\u5668\u7684\u79c1\u6709 IP \u4f4d\u5740\u548c\u9023\u63a5\u57e0\u865f\u3002<\/p>\n<\/li>\n<li>\n<p>\u5132\u5b58\u8b8a\u66f4\uff0c\u5982\u6709\u9700\u8981\u91cd\u65b0\u555f\u52d5\u8def\u7531\u5668\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u9023\u63a5\u57e0\u8f49\u767c\u7684\u6210\u529f\u7387\u53d6\u6c7a\u65bc\u60a8\u7684\u7db2\u8def\u8a2d\u5b9a\u3002\u4f8b\u5982\uff0c\u4e00\u822c NAT \u7a7f\u900f\u7684\u6210\u529f\u7387\u7d04\u70ba 70%\uff0c\u800c\u6253\u6d1e\u6280\u8853\u53ef\u4ee5\u9054\u5230\u8d85\u904e 80% \u7684\u6210\u529f\u7387\u3002\u5982\u679c\u96d9\u65b9\u90fd\u5728\u56b4\u683c\u7684 NAT \u5f8c\u9762\uff0c\u6210\u529f\u7387\u6703\u6025\u5287\u4e0b\u964d\u3002\u4ee5\u4e0b\u662f\u4e0d\u540c\u689d\u4ef6\u4e0b\u7684\u6210\u529f\u7387\u8868\u683c\uff1a<\/p>\n<div fullwidth=\"\" 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>\u689d\u4ef6<\/th>\n<th>\u6210\u529f\u7387<\/th>\n<\/tr>\n<tr>\n<td>0.4% \u641c\u5c0b\u7a7a\u9593\u8986\u84cb<\/td>\n<td>64%<\/td>\n<\/tr>\n<tr>\n<td>3.1% \u641c\u5c0b\u7a7a\u9593\u8986\u84cb<\/td>\n<td>99.9%<\/td>\n<\/tr>\n<tr>\n<td>\u96d9\u65b9\u90fd\u5728 EDM NAT \u5f8c (2048 vs 256)<\/td>\n<td>0.01%<\/td>\n<\/tr>\n<tr>\n<td>\u6df7\u5408 EDM\/EIM \u5c0d\u7b49\u7d44\u5408<\/td>\n<td>\u9810\u671f\u63d0\u5347 12.5%<\/td>\n<\/tr>\n<tr>\n<td>\u4e00\u822c NAT \u7a7f\u900f<\/td>\n<td>~70%<\/td>\n<\/tr>\n<tr>\n<td>\u6253\u6d1e\u6280\u8853<\/td>\n<td>>80%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<blockquote>\n<p>\ud83d\udca1 <strong>\u6ce8\u610f\uff1a<\/strong>\u5982\u679c\u5728\u9023\u63a5\u57e0\u8f49\u767c\u5f8c C socket \u4f3a\u670d\u5668\u4ecd\u7121\u6cd5\u63a5\u53d7\u516c\u7db2\u9023\u7dda\uff0c\u60a8\u7684 ISP \u53ef\u80fd\u963b\u64cb\u4e86\u67d0\u4e9b\u9023\u63a5\u57e0\u3002\u5617\u8a66\u4f7f\u7528\u4e0d\u540c\u7684\u9023\u63a5\u57e0\u6216\u806f\u7d61\u60a8\u7684\u670d\u52d9\u63d0\u4f9b\u5546\u5c0b\u6c42\u5354\u52a9\u3002<\/p>\n<\/blockquote>\n<h3>\u6e2c\u8a66\u9023\u63a5\u57e0\u53ef\u5b58\u53d6\u6027<\/h3>\n<p>\u5728\u8a2d\u5b9a\u5b8c\u9632\u706b\u7246\u548c\u9023\u63a5\u57e0\u8f49\u767c\u5f8c\uff0c\u60a8\u61c9\u8a72\u6e2c\u8a66 C socket \u4f3a\u670d\u5668\u9023\u63a5\u57e0\u662f\u5426\u53ef\u5b58\u53d6\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u5e7e\u7a2e\u5de5\u5177\u9032\u884c\u6e2c\u8a66\uff1a<\/p>\n<ul>\n<li>\n<p><strong>PowerShell \u7684 Test-NetConnection\uff1a<\/strong>\u958b\u555f PowerShell \u4e26\u8f38\u5165 <code>Test-NetConnection -ComputerName &lt;\u60a8\u7684\u516c\u7db2IP&gt; -Port &lt;\u9023\u63a5\u57e0\u865f&gt;<\/code>\u3002\u6b64\u547d\u4ee4\u6aa2\u67e5\u9023\u63a5\u57e0\u662f\u5426\u958b\u653e\u3002<\/p>\n<\/li>\n<li>\n<p><strong>curl\uff1a<\/strong>\u5728\u547d\u4ee4\u63d0\u793a\u5b57\u5143\u4e2d\u4f7f\u7528 <code>curl &lt;\u60a8\u7684\u516c\u7db2IP&gt;:&lt;\u9023\u63a5\u57e0\u865f&gt;<\/code> \u5617\u8a66\u9023\u7dda\u5230\u60a8\u7684\u4f3a\u670d\u5668\u3002<\/p>\n<\/li>\n<li>\n<p><strong>ssh\uff1a<\/strong>\u5982\u679c\u555f\u7528\u4e86 SSH\uff0c\u5617\u8a66\u9023\u7dda\u5230\u4f3a\u670d\u5668\u7684\u9023\u63a5\u57e0\u4ee5\u78ba\u8a8d\u53ef\u5b58\u53d6\u6027\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u60a8\u9084\u53ef\u4ee5\u4f7f\u7528 telnet \u7528\u6236\u7aef\u6aa2\u67e5\u9023\u63a5\u57e0\u72c0\u614b\u3002\u9996\u5148\uff0c\u78ba\u4fdd\u5728 Windows \u4e2d\u555f\u7528\u4e86 telnet \u529f\u80fd\u3002\u958b\u555f\u547d\u4ee4\u63d0\u793a\u5b57\u5143\u4e26\u8f38\u5165 <code>telnet &lt;IP\u4f4d\u5740&gt; &lt;\u9023\u63a5\u57e0\u865f&gt;<\/code>\u3002\u5982\u679c\u770b\u5230\u9583\u720d\u7684\u6e38\u6a19\uff0c\u8868\u793a\u9023\u63a5\u57e0\u662f\u958b\u653e\u7684\u3002\u5982\u679c\u6536\u5230\u300c\u9023\u7dda\u5931\u6557\u300d\u8a0a\u606f\uff0c\u8868\u793a\u9023\u63a5\u57e0\u662f\u95dc\u9589\u7684\u3002<\/p>\n<blockquote>\n<p>\u2705 <strong>\u5feb\u901f\u6aa2\u67e5\uff1a<\/strong>\u59cb\u7d42\u5f9e\u7db2\u8def\u5167\u90e8\u548c\u5916\u90e8\u6e2c\u8a66\u60a8\u7684 C socket \u4f3a\u670d\u5668\u3002\u9019\u4e00\u6b65\u53ef\u4ee5\u5e6b\u52a9\u60a8\u78ba\u5b9a\u554f\u984c\u662f\u672c\u5730\u7684\u9084\u662f\u8207\u516c\u7db2 IP \u8a2d\u5b9a\u76f8\u95dc\u3002<\/p>\n<\/blockquote>\n<h2>\u9a57\u8b49\u4f3a\u670d\u5668\u548c\u7db2\u8def\u8a2d\u5b9a<\/h2>\n<h3>\u78ba\u4fdd\u4f3a\u670d\u5668\u6b63\u5728\u57f7\u884c<\/h3>\n<p>\u60a8\u9700\u8981\u78ba\u8a8d\u4f3a\u670d\u5668\u8655\u65bc\u6d3b\u52d5\u72c0\u614b\u4e26\u5728\u76e3\u807d\u9023\u7dda\u3002\u5982\u679c\u4f3a\u670d\u5668\u6c92\u6709\u57f7\u884c\uff0c\u7528\u6236\u7aef\u5c07\u7121\u6cd5\u9023\u7dda\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u591a\u500b\u547d\u4ee4\u4f86\u6aa2\u67e5\u4f3a\u670d\u5668\u72c0\u614b\u3002\u4e0b\u8868\u986f\u793a\u4e86\u4e00\u4e9b\u53ef\u9760\u7684\u65b9\u6cd5\u4f86\u9a57\u8b49\u4f3a\u670d\u5668\u662f\u5426\u5728\u76e3\u807d\uff1a<\/p>\n<div fullwidth=\"\" 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>\u547d\u4ee4<\/th>\n<th>\u63cf\u8ff0<\/th>\n<\/tr>\n<tr>\n<td><code>lsof -i:8080<\/code><\/td>\n<td>\u6aa2\u67e5\u901a\u8a0a\u7aef\u662f\u5426\u5728\u9023\u63a5\u57e0 8080 \u4e0a\u76e3\u807d<\/td>\n<\/tr>\n<tr>\n<td>`ss &#8211;listening &#8211;numeric &#8211;tcp | grep 8080`<\/td>\n<td>\u6aa2\u67e5 TCP \u9023\u63a5\u57e0 8080 \u7684\u76e3\u807d\u72c0\u614b<\/td>\n<\/tr>\n<tr>\n<td><code>cat \/proc\/net\/tcp<\/code><\/td>\n<td>\u986f\u793a\u901a\u8a0a\u7aef inode \u7684\u72c0\u614b<\/td>\n<\/tr>\n<tr>\n<td><code>stat --dereference --printf %i \/proc\/$SERVER_PROC\/fd\/3<\/code><\/td>\n<td>\u53d6\u5f97\u901a\u8a0a\u7aef\u7684 inode<\/td>\n<\/tr>\n<tr>\n<td>`cat \/proc\/net\/tcp | grep $SERVER_SOCKET`<\/td>\n<td>\u5c0b\u627e\u7279\u5b9a\u4f3a\u670d\u5668\u901a\u8a0a\u7aef<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u5982\u679c\u60a8\u5728\u5217\u8868\u4e2d\u770b\u5230\u60a8\u7684\u4f3a\u670d\u5668\uff0c\u8868\u793a\u5b83\u5df2\u6e96\u5099\u597d\u63a5\u53d7\u9023\u7dda\u3002\u5982\u679c\u6c92\u6709\uff0c\u91cd\u65b0\u555f\u52d5\u4f3a\u670d\u5668\u4e26\u518d\u6b21\u6aa2\u67e5\u3002<\/p>\n<h3>\u78ba\u8a8d\u6b63\u78ba\u7684 IP \u548c\u7d81\u5b9a<\/h3>\n<p>\u60a8\u5fc5\u9808\u5c07\u4f3a\u670d\u5668\u7d81\u5b9a\u5230\u6b63\u78ba\u7684 IP \u4f4d\u5740\u548c\u9023\u63a5\u57e0\u3002\u5982\u679c\u4f7f\u7528\u932f\u8aa4\u7684\u4f4d\u5740\u6216\u9023\u63a5\u57e0\uff0c\u7528\u6236\u7aef\u5c07\u7121\u6cd5\u9023\u7dda\u5230\u60a8\u7684\u4f3a\u670d\u5668\u3002\u4ee5\u4e0b\u7a0b\u5f0f\u78bc\u5c55\u793a\u4e86\u5982\u4f55\u7d81\u5b9a\u901a\u8a0a\u7aef\u4e26\u6aa2\u67e5\u932f\u8aa4\uff1a<\/p>\n<blockquote>\n<pre><code>\/\/ \u8a2d\u5b9a TCP \u76e3\u807d\u901a\u8a0a\u7aef\r\niResult = bind( ListenSocket, result->ai_addr, (int)result->ai_addrlen);\r\nif (iResult == SOCKET_ERROR) {\r\n    printf(\"\u7d81\u5b9a\u5931\u6557\uff0c\u932f\u8aa4\u4ee3\u78bc: %d\\n\", WSAGetLastError());\r\n    freeaddrinfo(result);\r\n    closesocket(ListenSocket);\r\n    WSACleanup();\r\n    return 1;\r\n}\r\n<\/code><\/pre>\n<\/blockquote>\n<p>\u7d81\u5b9a\u5f8c\uff0c\u60a8\u7684\u4f3a\u670d\u5668\u5c31\u53ef\u4ee5\u76e3\u807d\u5165\u7ad9\u9023\u7dda\u4e86\u3002\u5728\u6b64\u904e\u7a0b\u4e2d\u59cb\u7d42\u6aa2\u67e5\u932f\u8aa4\u3002\u60a8\u9084\u61c9\u907f\u514d\u5728\u61c9\u7528\u7a0b\u5f0f\u4e2d\u50c5\u4f9d\u8cf4 IP \u4f4d\u5740\u3002\u6709\u6642\uff0cDNS \u67e5\u8a62\u6703\u8fd4\u56de\u4e00\u500b\u7121\u6cd5\u5b58\u53d6\u7684 IP\uff0c\u9019\u53ef\u80fd\u5c0e\u81f4\u9023\u7dda\u554f\u984c\u3002<\/p>\n<p>\u8981\u6b63\u78ba\u8a2d\u5b9a\u4f3a\u670d\u5668\uff0c\u8acb\u9075\u5faa\u4ee5\u4e0b\u6b65\u9a5f\uff1a<\/p>\n<ol>\n<li>\n<p>\u5efa\u7acb TCP \u901a\u8a0a\u7aef\u3002<\/p>\n<\/li>\n<li>\n<p>\u5c07\u901a\u8a0a\u7aef\u7d81\u5b9a\u5230\u4f3a\u670d\u5668\u4f4d\u5740\u3002<\/p>\n<\/li>\n<li>\n<p>\u5c07\u4f3a\u670d\u5668\u901a\u8a0a\u7aef\u7f6e\u65bc\u88ab\u52d5\u6a21\u5f0f\u3002<\/p>\n<\/li>\n<li>\n<p>\u63a5\u53d7\u4f86\u81ea\u7528\u6236\u7aef\u7684\u9023\u7dda\u3002<\/p>\n<\/li>\n<\/ol>\n<h3>\u8003\u616e NAT \u548c\u516c\u7db2 IP \u554f\u984c<\/h3>\n<p>\u7db2\u8def\u4f4d\u5740\u8f49\u8b6f(NAT)\u6703\u66f4\u6539\u5c01\u5305\u8cc7\u8a0a\uff0c\u4f7f\u5de5\u4f5c\u968e\u6bb5\u770b\u8d77\u4f86\u50cf\u662f\u5f9e NAT \u88dd\u7f6e\u767c\u8d77\u7684\u3002\u9019\u500b\u7a0b\u5e8f\u5e6b\u52a9\u79c1\u6709\u4e3b\u6a5f\u9023\u7dda\u5230\u516c\u5171\u4f3a\u670d\u5668\u3002\u4f46\u662f\uff0cNAT \u4f7f\u5916\u90e8\u7528\u6236\u7aef\u66f4\u96e3\u9023\u7dda\u5230 NAT \u5f8c\u9762\u7684\u4f3a\u670d\u5668\u3002\u5982\u679c\u60a8\u7684 C socket \u4f3a\u670d\u5668\u4f4d\u65bc NAT \u5f8c\u9762\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u8abf\u6574\u8def\u7531\u5668\u8a2d\u5b9a\u6216\u4f7f\u7528\u9023\u63a5\u57e0\u8f49\u767c\u3002\u516c\u7db2 IP \u8a2d\u5b9a\u4e5f\u5f88\u91cd\u8981\u3002\u5982\u679c\u4f7f\u7528\u932f\u8aa4\u7684\u516c\u7db2 IP\uff0c\u7528\u6236\u7aef\u5c07\u7121\u6cd5\u627e\u5230\u60a8\u7684\u4f3a\u670d\u5668\u3002<\/p>\n<p>\u5e38\u898b\u932f\u8aa4\u5305\u62ec\u4f9d\u8cf4 DNS \u7121\u6cd5\u89e3\u6790\u7684 IP \u4f4d\u5740\u6216\u6307\u5411\u7121\u6cd5\u5b58\u53d6\u7684\u4e3b\u6a5f\u3002\u59cb\u7d42\u6aa2\u67e5\u60a8\u7684 DNS \u8a2d\u5b9a\u4e26\u78ba\u4fdd\u60a8\u7684\u516c\u7db2 IP \u662f\u6b63\u78ba\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u7406\u89e3 NAT \u548c\u516c\u7db2 IP \u7684\u904b\u4f5c\u539f\u7406\uff0c\u5c31\u53ef\u4ee5\u907f\u514d\u8a31\u591a\u9023\u7dda\u554f\u984c\u3002<\/p>\n<h2>\u6e2c\u8a66 C Socket \u4f3a\u670d\u5668\u9023\u7dda<\/h2>\n<h3>\u6e2c\u8a66\u672c\u5730\u548c\u79c1\u6709 IP<\/h3>\n<p>\u9996\u5148\u4f7f\u7528 localhost \u4f4d\u5740(127.0.0.1)\u5728\u540c\u4e00\u53f0\u6a5f\u5668\u4e0a\u6e2c\u8a66\u60a8\u7684 C socket \u4f3a\u670d\u5668\u3002\u9019\u4e00\u6b65\u53ef\u4ee5\u5e6b\u52a9\u60a8\u5728\u5617\u8a66\u9060\u7aef\u9023\u7dda\u4e4b\u524d\u78ba\u8a8d\u4f3a\u670d\u5668\u6b63\u5e38\u904b\u4f5c\u3002\u60a8\u9084\u53ef\u4ee5\u4f7f\u7528\u79c1\u6709 IP \u4f4d\u5740\u6aa2\u67e5\u672c\u5730\u7db2\u8def\u4e0a\u7684\u88dd\u7f6e\u662f\u5426\u53ef\u4ee5\u9023\u7dda\u3002\u6309\u7167\u4ee5\u4e0b\u6b65\u9a5f\u6e2c\u8a66\u60a8\u7684\u4f3a\u670d\u5668\uff1a<\/p>\n<ol>\n<li>\n<p>\u4f7f\u7528 <code>socket()<\/code> \u51fd\u5f0f\u5efa\u7acb\u901a\u8a0a\u7aef\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528 <code>setsockopt<\/code> \u8a2d\u5b9a\u901a\u8a0a\u7aef\u9078\u9805\uff0c\u4ee5\u907f\u514d\u300c\u4f4d\u5740\u5df2\u5728\u4f7f\u7528\u300d\u7b49\u932f\u8aa4\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528 <code>bind()<\/code> \u5c07\u901a\u8a0a\u7aef\u7d81\u5b9a\u5230\u4f4d\u5740\u548c\u9023\u63a5\u57e0\u3002\u5c0d\u65bc localhost \u4f7f\u7528 <code>INADDR_ANY<\/code>\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528 <code>listen()<\/code> \u5c07\u4f3a\u670d\u5668\u7f6e\u65bc\u88ab\u52d5\u6a21\u5f0f\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528 <code>accept()<\/code> \u63a5\u53d7\u7528\u6236\u7aef\u7684\u9023\u7dda\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528 <code>send()<\/code> \u548c <code>recv()<\/code> \u4ea4\u63db\u8cc7\u6599\u3002<\/p>\n<\/li>\n<li>\n<p>\u5b8c\u6210\u5f8c\u4f7f\u7528 <code>close()<\/code> \u95dc\u9589\u901a\u8a0a\u7aef\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u5982\u679c\u53ef\u4ee5\u672c\u5730\u9023\u7dda\uff0c\u90a3\u9ebc\u60a8\u7684\u4f3a\u670d\u5668\u7a0b\u5f0f\u78bc\u548c\u8a2d\u5b9a\u53ef\u80fd\u662f\u6b63\u78ba\u7684\u3002<\/p>\n<h3>\u9060\u7aef\u6e2c\u8a66\u516c\u7db2 IP<\/h3>\n<p>\u672c\u5730\u6e2c\u8a66\u5f8c\uff0c\u5617\u8a66\u5f9e\u7db2\u8def\u5916\u7684\u88dd\u7f6e\u9023\u7dda\u5230\u60a8\u7684 C socket \u4f3a\u670d\u5668\u3002\u4f7f\u7528\u60a8\u7684\u516c\u7db2 IP \u4f4d\u5740\u9032\u884c\u6b64\u6e2c\u8a66\u3002\u78ba\u4fdd\u60a8\u5df2\u8a2d\u5b9a\u9023\u63a5\u57e0\u8f49\u767c\u548c\u9632\u706b\u7246\u898f\u5247\u3002\u5982\u679c\u9023\u7dda\u5931\u6557\uff0c\u6aa2\u67e5\u60a8\u7684 ISP \u662f\u5426\u963b\u64cb\u4e86\u67d0\u4e9b\u9023\u63a5\u57e0\u6216\u8def\u7531\u5668\u662f\u5426\u9700\u8981\u66f4\u591a\u8a2d\u5b9a\u3002\u5f9e\u884c\u52d5\u88dd\u7f6e\u6216\u670b\u53cb\u7684\u96fb\u8166\u9032\u884c\u6e2c\u8a66\u53ef\u4ee5\u5e6b\u52a9\u60a8\u78ba\u8a8d\u4f3a\u670d\u5668\u662f\u5426\u53ef\u4ee5\u5f9e\u7db2\u969b\u7db2\u8def\u5b58\u53d6\u3002<\/p>\n<blockquote>\n<p>\ud83d\udee1\ufe0f <strong>\u63d0\u793a\uff1a<\/strong>\u59cb\u7d42\u5f9e\u7db2\u8def\u5167\u90e8\u548c\u5916\u90e8\u9032\u884c\u6e2c\u8a66\u3002\u9019\u7a2e\u65b9\u6cd5\u53ef\u4ee5\u5e6b\u52a9\u60a8\u627e\u51fa\u9023\u7dda\u5728\u54ea\u88e1\u4e2d\u65b7\u3002<\/p>\n<\/blockquote>\n<h3>\u4f7f\u7528\u7db2\u8def\u5de5\u5177<\/h3>\n<p>\u7db2\u8def\u5de5\u5177\u53ef\u4ee5\u5e6b\u52a9\u60a8\u8a3a\u65b7\u9023\u7dda\u554f\u984c\u3002\u4f7f\u7528 <code>ping<\/code> \u6aa2\u67e5\u4f3a\u670d\u5668\u662f\u5426\u56de\u61c9\u7db2\u8def\u8acb\u6c42\u3002\u5617\u8a66\u4f7f\u7528 <code>telnet<\/code> \u6216 <code>netcat<\/code> \u6e2c\u8a66\u9023\u63a5\u57e0\u662f\u5426\u958b\u653e\u4e26\u63a5\u53d7\u9023\u7dda\u3002\u60a8\u9084\u53ef\u4ee5\u4f7f\u7528 <code>nslookup<\/code> \u89e3\u6790\u7db2\u57df\u540d\u7a31\uff0c\u4f7f\u7528 <code>tcpdump<\/code> \u64f7\u53d6\u7db2\u8def\u6d41\u91cf\u9032\u884c\u6df1\u5165\u5206\u6790\u3002SNMP \u8f2a\u8a62\u5668\u548c\u88ab\u52d5\u5206\u6790\u5668\u53ef\u4ee5\u986f\u793a\u7db2\u8def\u88dd\u7f6e\u72c0\u614b\u4e26\u5e6b\u52a9\u60a8\u767c\u73fe\u74f6\u9838\u3002\u50cf NetBeez \u9019\u6a23\u7684\u4e3b\u52d5\u6e2c\u8a66\u5de5\u5177\u53ef\u4ee5\u6e2c\u91cf\u5f80\u8fd4\u6642\u9593\u548c\u5c01\u5305\u907a\u5931\uff0c\u63d0\u9192\u60a8\u6548\u80fd\u554f\u984c\u3002<\/p>\n<blockquote>\n<p>\ud83d\udd0d <strong>\u6ce8\u610f\uff1a<\/strong>\u7d50\u5408\u4f7f\u7528\u9019\u4e9b\u5de5\u5177\u53ef\u4ee5\u8b93\u60a8\u6e05\u695a\u5730\u4e86\u89e3\u7db2\u8def\u72c0\u6cc1\uff0c\u5e6b\u52a9\u60a8\u66f4\u5feb\u5730\u89e3\u6c7a\u554f\u984c\u3002<\/p>\n<\/blockquote>\n<h2>\u7528\u6236\u7aef\u548c\u8def\u7531\u5668\u6545\u969c\u6392\u9664<\/h2>\n<h3>\u6aa2\u67e5\u7528\u6236\u7aef\u8a2d\u5b9a<\/h3>\n<p>\u60a8\u61c9\u8a72\u59cb\u7d42\u5f9e\u6aa2\u67e5\u7528\u6236\u7aef\u8a2d\u5b9a\u958b\u59cb\u3002\u8a31\u591a\u9023\u7dda\u554f\u984c\u6e90\u65bc\u7528\u6236\u7aef\u3002\u67e5\u770b\u61c9\u7528\u7a0b\u5f0f\u65e5\u8a8c\u6216\u63a7\u5236\u53f0\u8f38\u51fa\u4e2d\u7684\u932f\u8aa4\u8a0a\u606f\u3002\u9019\u4e9b\u8a0a\u606f\u901a\u5e38\u6307\u5411\u6839\u672c\u539f\u56e0\u3002\u78ba\u4fdd\u60a8\u7684\u9632\u706b\u7246\u6216\u5b89\u5168\u8edf\u9ad4\u4e0d\u6703\u963b\u64cb C socket \u4f3a\u670d\u5668\u4f7f\u7528\u7684\u9023\u63a5\u57e0\u4e0a\u7684\u7db2\u8def\u6d41\u91cf\u3002\u4ed4\u7d30\u6aa2\u67e5\u7528\u6236\u7aef\u548c\u4f3a\u670d\u5668\u662f\u5426\u4f7f\u7528\u76f8\u540c\u7684\u5354\u5b9a(\u5982 TCP \u6216 UDP)\u548c\u76f8\u540c\u7684\u5b9a\u5740\u65b9\u6848(\u5982 IPv4 \u6216 IPv6)\u3002\u78ba\u8a8d\u60a8\u7684\u7528\u6236\u7aef\u53ef\u4ee5\u5b58\u53d6\u4f3a\u670d\u5668\u7684 IP \u4f4d\u5740\uff0c\u4e26\u4e14\u4f3a\u670d\u5668\u6b63\u5728\u57f7\u884c\u4e26\u6e96\u5099\u63a5\u53d7\u9023\u7dda\u3002<\/p>\n<ul>\n<li>\n<p>\u6aa2\u67e5\u65e5\u8a8c\u6216\u63a7\u5236\u53f0\u8f38\u51fa\u4e2d\u7684\u932f\u8aa4\u8a0a\u606f\u3002<\/p>\n<\/li>\n<li>\n<p>\u78ba\u4fdd\u9632\u706b\u7246\u6216\u5b89\u5168\u8edf\u9ad4\u5141\u8a31\u6b63\u78ba\u9023\u63a5\u57e0\u4e0a\u7684\u6d41\u91cf\u3002<\/p>\n<\/li>\n<li>\n<p>\u9a57\u8b49\u7528\u6236\u7aef\u548c\u4f3a\u670d\u5668\u4f7f\u7528\u76f8\u540c\u7684\u5354\u5b9a\u548c\u4f4d\u5740\u985e\u578b\u3002<\/p>\n<\/li>\n<li>\n<p>\u78ba\u8a8d\u4f3a\u670d\u5668\u6b63\u5728\u57f7\u884c\u4e14\u53ef\u5b58\u53d6\u3002<\/p>\n<\/li>\n<\/ul>\n<blockquote>\n<p>\ud83d\udee0\ufe0f <strong>\u63d0\u793a\uff1a<\/strong>\u5982\u679c\u770b\u5230\u91cd\u8907\u7684\u9023\u7dda\u5931\u6557\uff0c\u5617\u8a66\u91cd\u65b0\u555f\u52d5\u7528\u6236\u7aef\u61c9\u7528\u7a0b\u5f0f\u6216\u96fb\u8166\u3002<\/p>\n<\/blockquote>\n<h3>\u5617\u8a66\u4e0d\u540c\u7684\u7528\u6236\u7aef\u6216\u7db2\u8def<\/h3>\n<p>\u6709\u6642\u554f\u984c\u4f86\u81ea\u7528\u6236\u7aef\u61c9\u7528\u7a0b\u5f0f\u6216\u7db2\u8def\u74b0\u5883\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4e0d\u540c\u7684\u7528\u6236\u7aef\u7a0b\u5f0f\u6216\u88dd\u7f6e\u6e2c\u8a66\u4f3a\u670d\u5668\u3002\u5617\u8a66\u5f9e\u53e6\u4e00\u53f0\u96fb\u8166\u3001\u667a\u6167\u578b\u624b\u6a5f\u6216\u5e73\u677f\u96fb\u8166\u9023\u7dda\u3002\u5982\u679c\u53ef\u80fd\uff0c\u4f7f\u7528\u4e0d\u540c\u7684\u7db2\u8def\uff0c\u5982\u884c\u52d5\u71b1\u9ede\u6216\u670b\u53cb\u7684 Wi-Fi\u3002\u9019\u7a2e\u65b9\u6cd5\u53ef\u4ee5\u5e6b\u52a9\u60a8\u78ba\u5b9a\u554f\u984c\u662f\u5426\u51fa\u5728\u539f\u59cb\u7528\u6236\u7aef\u6216\u7db2\u8def\u4e0a\u3002<\/p>\n<ul>\n<li>\n<p>\u4f7f\u7528\u53e6\u4e00\u500b\u7528\u6236\u7aef\u61c9\u7528\u7a0b\u5f0f\u6392\u9664\u8edf\u9ad4\u932f\u8aa4\u3002<\/p>\n<\/li>\n<li>\n<p>\u5207\u63db\u5230\u4e0d\u540c\u7684\u88dd\u7f6e\u6aa2\u67e5\u786c\u9ad4\u554f\u984c\u3002<\/p>\n<\/li>\n<li>\n<p>\u5f9e\u53e6\u4e00\u500b\u7db2\u8def\u9023\u7dda\uff0c\u770b\u770b\u7576\u524d\u7db2\u8def\u662f\u5426\u963b\u64cb\u9023\u7dda\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5982\u679c\u4e0d\u540c\u7684\u7528\u6236\u7aef\u6216\u7db2\u8def\u53ef\u4ee5\u904b\u4f5c\uff0c\u60a8\u5c31\u77e5\u9053\u554f\u984c\u4e0d\u5728\u4f3a\u670d\u5668\u7aef\u3002<\/p>\n<h3>\u6aa2\u67e5\u8def\u7531\u5668\u548c ISP \u9650\u5236<\/h3>\n<p>\u60a8\u7684\u8def\u7531\u5668\u6216\u7db2\u969b\u7db2\u8def\u670d\u52d9\u63d0\u4f9b\u5546\u53ef\u80fd\u6703\u963b\u64cb\u5b58\u53d6\u60a8\u7684 C socket \u4f3a\u670d\u5668\u3002\u8a31\u591a ISP \u4f7f\u7528\u96fb\u4fe1\u7d1a NAT(CG-NAT)\u4f86\u7ba1\u7406\u6709\u9650\u7684 IPv4 \u4f4d\u5740\u3002CG-NAT \u5728\u60a8\u7684\u5bb6\u5ead\u7db2\u8def\u548c\u7db2\u969b\u7db2\u8def\u4e4b\u9593\u589e\u52a0\u4e86\u4e00\u500b\u984d\u5916\u7684\u8def\u7531\u5c64\u3002\u9019\u7a2e\u8a2d\u5b9a\u6703\u4f7f\u5916\u90e8\u88dd\u7f6e\u96e3\u4ee5\u9023\u7dda\u5230\u60a8\u7684\u4f3a\u670d\u5668\u3002CG-NAT \u5167\u90e8\u7684\u5c01\u5305\u8f49\u63db\u554f\u984c\u53ef\u80fd\u5c0e\u81f4\u5c01\u5305\u907a\u5931\u548c\u9023\u7dda\u4e2d\u65b7\u3002<\/p>\n<ul>\n<li>\n<p>ISP \u53ef\u80fd\u4f7f\u7528 CG-NAT\uff0c\u9019\u6703\u963b\u64cb\u76f4\u63a5\u5b58\u53d6\u60a8\u7684\u516c\u7db2 IP\u3002<\/p>\n<\/li>\n<li>\n<p>CG-NAT \u589e\u52a0\u4e86\u53e6\u4e00\u500b\u8def\u7531\u5668\u5c64\uff0c\u4f7f\u9023\u63a5\u57e0\u8f49\u767c\u8b8a\u5f97\u56f0\u96e3\u3002<\/p>\n<\/li>\n<li>\n<p>CG-NAT 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\u9632\u706b\u7246\u5141\u8a31\u4f3a\u670d\u5668\u9023\u63a5\u57e0\u4e0a\u7684\u6d41\u91cf\u3002<\/p>\n<h3>\u5982\u4f55\u6aa2\u67e5\u4f3a\u670d\u5668\u662f\u5426\u5728\u6b63\u78ba\u7684\u9023\u63a5\u57e0\u4e0a\u76e3\u807d\uff1f<\/h3>\n<p>\u958b\u555f\u547d\u4ee4\u63d0\u793a\u5b57\u5143\u4e26\u57f7\u884c\uff1a<\/p>\n<pre><code>netstat -an | find \"&lt;\u9023\u63a5\u57e0\u865f&gt;\"\r\n<\/code><\/pre>\n<p>\u5982\u679c\u5728\u9023\u63a5\u57e0\u65c1\u908a\u770b\u5230\u300cLISTENING\u300d\uff0c\u5247\u8868\u793a\u4f3a\u670d\u5668\u8655\u65bc\u6d3b\u52d5\u72c0\u614b\u3002<\/p>\n<h3>\u5982\u679c\u6536\u5230\u300c\u9023\u7dda\u88ab\u62d2\u7d55\u300d\u932f\u8aa4\u8a72\u600e\u9ebc\u8fa6\uff1f<\/h3>\n<p>\u6b64\u932f\u8aa4\u8868\u793a\u60a8\u7684\u4f3a\u670d\u5668\u4e0d\u63a5\u53d7\u9023\u7dda\u3002\u91cd\u65b0\u555f\u52d5\u4f3a\u670d\u5668\uff0c\u9a57\u8b49 IP 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href=\"https:\/\/www.varidata.com\/zh-tw\/blog-tc\/windows-c-socket-server-public-ip-connection-guide\/\">Read More&#8230;<\/a><\/p>\n","protected":false},"author":11,"featured_media":29861,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[267],"tags":[],"class_list":["post-29864","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>\u5982\u4f55\u89e3\u6c7aWindows C Socket \u4f3a\u670d\u5668\u516c\u7db2 IP \u9023\u7dda\u554f\u984c<\/title>\n<meta name=\"description\" content=\"\u5728 Windows \u7cfb\u7d71\u4e0a\u4fee\u5fa9\u900f\u904e\u516c\u7db2 IP \u5b58\u53d6 C socket 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