{"id":29863,"date":"2026-01-28T15:32:32","date_gmt":"2026-01-28T07:32:32","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-cn\/windows-c-socket-server-public-ip-connection-guide\/"},"modified":"2026-01-28T15:49:16","modified_gmt":"2026-01-28T07:49:16","slug":"windows-c-socket-server-public-ip-connection-guide","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-cn\/blog\/windows-c-socket-server-public-ip-connection-guide\/","title":{"rendered":"\u5982\u4f55\u89e3\u51b3Windows C Socket \u670d\u52a1\u5668\u516c\u7f51 IP \u8fde\u63a5\u95ee\u9898"},"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\u7edf\u7684 C socket \u670d\u52a1\u5668\u65f6,\u7279\u522b\u662f\u5728\u4f7f\u7528<a target=\"_self\" href=\"https:\/\/www.varidata.com\/zh-cn\/server\/los-angeles\/cn2\/\">\u7f8e\u56fd\u670d\u52a1\u5668\u79df\u7528<\/a>\u4f9b\u5e94\u5546\u65f6,\u7ecf\u5e38\u4f1a\u9047\u5230\u8fde\u63a5\u95ee\u9898\u3002\u5927\u591a\u6570\u95ee\u9898\u6e90\u4e8e\u9632\u706b\u5899\u963b\u6b62\u3001\u7f51\u7edc\u5e72\u6270\u6216\u4ee3\u7801\u9519\u8bef\u3002\u60a8\u53ef\u80fd\u4f1a\u56e0\u4e3a\u6570\u636e\u5305\u4e22\u5931\u3001TCP \u5934\u53c2\u6570\u4e0d\u6b63\u786e\u6216\u5e94\u7528\u7a0b\u5e8f\u7a81\u7136\u91cd\u7f6e\u800c\u5bfc\u81f4\u8fde\u63a5\u5931\u8d25\u3002\u5982\u679c\u6309\u6b65\u9aa4\u68c0\u67e5\u8fd9\u4e9b\u95ee\u9898,\u5c31\u80fd\u5feb\u901f\u627e\u51fa\u95ee\u9898\u6240\u5728\u5e76\u8fdb\u884c\u4fee\u590d\u3002<\/p>\n<ul>\n<li>\n<p>\u6570\u636e\u5305\u4e22\u5931\u53ef\u80fd\u5bfc\u81f4\u8fde\u63a5\u4e2d\u65ad\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e0d\u6b63\u786e\u7684 TCP \u5934\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u5305\u88ab\u62d2\u7edd\u3002<\/p>\n<\/li>\n<li>\n<p>\u5e94\u7528\u7a0b\u5e8f\u91cd\u7f6e\u901a\u5e38\u53d1\u751f\u5728\u6570\u636e\u4f20\u8f93\u5931\u8d25\u4e4b\u540e\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u4f7f\u7528\u7cfb\u7edf\u5316\u7684\u65b9\u6cd5,\u60a8\u53ef\u4ee5\u63d0\u9ad8\u89e3\u51b3\u8fde\u63a5\u95ee\u9898\u7684\u6548\u7387\u3002<\/p>\n<h2>\u4e3b\u8981\u8981\u70b9<\/h2>\n<ul>\n<li>\n<p>\u68c0\u67e5\u5e38\u89c1\u9519\u8bef\u6d88\u606f\u5982 WSAENOTCONN \u548c WSAECONNREFUSED \u6765\u8bc6\u522b\u8fde\u63a5\u95ee\u9898\u3002<\/p>\n<\/li>\n<li>\n<p>\u786e\u4fdd Windows \u9632\u706b\u5899\u5141\u8bb8 C socket \u670d\u52a1\u5668\u4f7f\u7528\u7684\u7aef\u53e3\u4e0a\u7684\u6d41\u91cf\u4ee5\u9632\u6b62\u963b\u585e\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728\u8def\u7531\u5668\u4e0a\u8bbe\u7f6e\u7aef\u53e3\u8f6c\u53d1\u4ee5\u542f\u7528\u5bf9 C socket \u670d\u52a1\u5668\u7684\u5916\u90e8\u8bbf\u95ee\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528 PowerShell \u548c telnet \u7b49\u5de5\u5177\u6d4b\u8bd5\u670d\u52a1\u5668\u7684\u53ef\u8bbf\u95ee\u6027\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728\u8fdb\u884c\u8fdb\u4e00\u6b65\u6545\u969c\u6392\u9664\u4e4b\u524d,\u59cb\u7ec8\u9a8c\u8bc1\u670d\u52a1\u5668\u662f\u5426\u6b63\u5728\u8fd0\u884c\u5e76\u7ed1\u5b9a\u5230\u6b63\u786e\u7684 IP \u5730\u5740\u548c\u7aef\u53e3\u3002<\/p>\n<\/li>\n<\/ul>\n<h2>\u5e38\u89c1\u8fde\u63a5\u95ee\u9898<\/h2>\n<h3>\u5178\u578b\u9519\u8bef\u6d88\u606f<\/h3>\n<p>\u5f53\u60a8\u5c1d\u8bd5\u8fde\u63a5\u5230 C socket \u670d\u52a1\u5668\u65f6,\u53ef\u80fd\u4f1a\u770b\u5230\u51e0\u79cd\u9519\u8bef\u6d88\u606f\u3002\u8fd9\u4e9b\u6d88\u606f\u53ef\u4ee5\u5e2e\u52a9\u60a8\u7406\u89e3\u51fa\u73b0\u4e86\u4ec0\u4e48\u95ee\u9898\u3002\u4e00\u4e9b\u6700\u5e38\u89c1\u7684\u9519\u8bef\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\n<p><strong>WSAENOBUFS (10055):<\/strong> \u6b64\u9519\u8bef\u8868\u793a\u7cfb\u7edf\u7f13\u51b2\u533a\u7a7a\u95f4\u5df2\u7528\u5b8c\u6216\u961f\u5217\u5df2\u6ee1\u3002\u60a8\u53ef\u80fd\u9700\u8981\u91cd\u542f\u8ba1\u7b97\u673a\u6765\u89e3\u51b3\u6b64\u95ee\u9898\u3002<\/p>\n<\/li>\n<li>\n<p><strong>WSAENOTCONN (10057):<\/strong> \u6b64\u6d88\u606f\u544a\u8bc9\u60a8\u5957\u63a5\u5b57\u672a\u8fde\u63a5\u3002<\/p>\n<\/li>\n<li>\n<p><strong>WSAESHUTDOWN (10058):<\/strong> \u5957\u63a5\u5b57\u5173\u95ed\u540e\u65e0\u6cd5\u53d1\u9001\u6570\u636e\u3002<\/p>\n<\/li>\n<li>\n<p><strong>WSAETIMEDOUT (10060):<\/strong> \u8fde\u63a5\u8d85\u65f6,\u901a\u5e38\u662f\u56e0\u4e3a\u670d\u52a1\u5668\u6ca1\u6709\u54cd\u5e94\u3002<\/p>\n<\/li>\n<li>\n<p><strong>WSAECONNREFUSED (10061):<\/strong> \u670d\u52a1\u5668\u62d2\u7edd\u8fde\u63a5\u3002<\/p>\n<\/li>\n<li>\n<p><strong>WSAEHOSTUNREACH (10065):<\/strong> \u65e0\u6cd5\u627e\u5230\u5230\u4e3b\u673a\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\u6765\u76d1\u63a7\u7f51\u7edc\u5e76\u53ca\u65e9\u53d1\u73b0\u8fd9\u4e9b\u9519\u8bef\u3002<\/p>\n<\/blockquote>\n<h3>\u7f51\u7edc\u963b\u585e\u7684\u8ff9\u8c61<\/h3>\n<p>\u7f51\u7edc\u963b\u585e\u53ef\u80fd\u4f1a\u963b\u6b62\u5ba2\u6237\u7aef\u8fde\u63a5\u5230\u670d\u52a1\u5668\u3002\u60a8\u53ef\u80fd\u4f1a\u6ce8\u610f\u5230\u8fd9\u4e9b\u8ff9\u8c61\uff1a<\/p>\n<ul>\n<li>\n<p>\u65e0\u6cd5 ping \u901a\u670d\u52a1\u5668\u7684\u516c\u7f51 IP \u5730\u5740\u3002<\/p>\n<\/li>\n<li>\n<p>\u8fde\u63a5\u8d85\u65f6\u6ca1\u6709\u4efb\u4f55\u54cd\u5e94\u3002<\/p>\n<\/li>\n<li>\n<p>\u53cd\u590d\u51fa\u73b0&#8221;\u8fde\u63a5\u88ab\u62d2\u7edd&#8221;\u9519\u8bef\u3002<\/p>\n<\/li>\n<li>\n<p>\u540c\u4e00\u7f51\u7edc\u4e0a\u7684\u5176\u4ed6\u8bbe\u5907\u4e5f\u65e0\u6cd5\u8fde\u63a5\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5982\u679c\u60a8\u770b\u5230\u8fd9\u4e9b\u8ff9\u8c61,\u8bf7\u68c0\u67e5\u9632\u706b\u5899\u8bbe\u7f6e\u548c\u8def\u7531\u5668\u914d\u7f6e\u3002\u6709\u65f6,\u4e92\u8054\u7f51\u670d\u52a1\u63d0\u4f9b\u5546\u4f1a\u5c01\u9501\u67d0\u4e9b\u7aef\u53e3\u3002\u4ece\u4e0d\u540c\u7684\u7f51\u7edc\u8fdb\u884c\u6d4b\u8bd5\u53ef\u4ee5\u5e2e\u52a9\u60a8\u786e\u5b9a\u95ee\u9898\u662f\u672c\u5730\u7684\u8fd8\u662f\u5916\u90e8\u7684\u3002<\/p>\n<h3>\u7406\u89e3\u9519\u8bef\u4ee3\u7801<\/h3>\n<p>\u9519\u8bef\u4ee3\u7801\u80fd\u8ba9\u60a8\u4e86\u89e3\u540e\u53f0\u53d1\u751f\u4e86\u4ec0\u4e48\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u4ee3\u7801\u53ca\u5176\u542b\u4e49\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\u7801<\/th>\n<th>\u6d88\u606f<\/th>\n<th>\u53ef\u80fd\u7684\u89e3\u91ca<\/th>\n<\/tr>\n<tr>\n<td>0<\/td>\n<td>\u4f20\u8f93\u672a\u77e5<\/td>\n<td>\u5728\u6b63\u5e38\u60c5\u51b5\u4e0b\u4e0d\u5e94\u8be5\u53d1\u751f\u3002<\/td>\n<\/tr>\n<tr>\n<td>1<\/td>\n<td>\u4f1a\u8bdd ID \u672a\u77e5<\/td>\n<td>\u901a\u5e38\u8868\u793a\u672a\u542f\u7528\u4f1a\u8bdd\u4fdd\u6301\u3002<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>\u63e1\u624b\u65b9\u6cd5\u9519\u8bef<\/td>\n<td>\u5728\u6b63\u5e38\u60c5\u51b5\u4e0b\u4e0d\u5e94\u8be5\u53d1\u751f\u3002<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>\u9519\u8bef\u8bf7\u6c42<\/td>\n<td>\u901a\u5e38\u610f\u5473\u7740\u670d\u52a1\u5668\u524d\u9762\u7684\u4ee3\u7406\u672a\u6b63\u786e\u8f6c\u53d1 WebSocket \u5934\u3002<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>\u7981\u6b62\u8bbf\u95ee<\/td>\n<td>\u8fde\u63a5\u88ab allowRequest() \u65b9\u6cd5\u62d2\u7edd\u3002<\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>\u4e0d\u652f\u6301\u7684\u534f\u8bae\u7248\u672c<\/td>\n<td>\u5ba2\u6237\u7aef\u7248\u672c\u4e0e\u670d\u52a1\u5668\u4e0d\u517c\u5bb9\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u5f53 C socket \u670d\u52a1\u5668\u8fde\u63a5\u5931\u8d25\u65f6,\u60a8\u5e94\u8be5\u59cb\u7ec8\u68c0\u67e5\u9519\u8bef\u4ee3\u7801\u3002\u8fd9\u4e00\u6b65\u53ef\u4ee5\u5e2e\u52a9\u60a8\u5224\u65ad\u95ee\u9898\u662f\u6765\u81ea\u4ee3\u7801\u3001\u7f51\u7edc\u8fd8\u662f\u670d\u52a1\u5668\u8bbe\u7f6e\u3002<\/p>\n<h2>C Socket \u670d\u52a1\u5668\u9632\u706b\u5899\u548c\u7aef\u53e3\u68c0\u67e5<\/h2>\n<h3>\u68c0\u67e5 Windows \u9632\u706b\u5899\u89c4\u5219<\/h3>\n<p>\u60a8\u9700\u8981\u786e\u4fdd Windows \u9632\u706b\u5899\u6ca1\u6709\u963b\u6b62 C socket \u670d\u52a1\u5668\u3002\u8bb8\u591a\u8fde\u63a5\u5931\u8d25\u662f\u56e0\u4e3a\u9632\u706b\u5899\u963b\u6b62\u4e86\u5165\u7ad9\u6d41\u91cf\u3002\u60a8\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u68c0\u67e5\u548c\u8c03\u6574\u9632\u706b\u5899\u8bbe\u7f6e\uff1a<\/p>\n<ol>\n<li>\n<p>\u4ece\u5f00\u59cb\u83dc\u5355\u6253\u5f00<em>\u9ad8\u7ea7\u5b89\u5168 Windows \u9632\u706b\u5899<\/em>\u63a7\u5236\u53f0\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728\u5bfc\u822a\u7a97\u683c\u4e2d\u9009\u62e9<strong>\u5165\u7ad9\u89c4\u5219<\/strong>\u3002<\/p>\n<\/li>\n<li>\n<p>\u70b9\u51fb<strong>\u64cd\u4f5c<\/strong>,\u7136\u540e\u9009\u62e9<strong>\u65b0\u5efa\u89c4\u5219<\/strong>\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728<strong>\u89c4\u5219\u7c7b\u578b<\/strong>\u9875\u9762,\u9009\u62e9<strong>\u81ea\u5b9a\u4e49<\/strong>\u5e76\u70b9\u51fb<strong>\u4e0b\u4e00\u6b65<\/strong>\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728<strong>\u7a0b\u5e8f<\/strong>\u9875\u9762,\u9009\u62e9<strong>\u6240\u6709\u7a0b\u5e8f<\/strong>\u5e76\u7ee7\u7eed\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728<strong>\u534f\u8bae\u548c\u7aef\u53e3<\/strong>\u9875\u9762,\u9009\u62e9 TCP \u6216 UDP,\u7136\u540e\u8f93\u5165 C socket \u670d\u52a1\u5668\u4f7f\u7528\u7684\u7aef\u53e3\u53f7\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728<strong>\u8303\u56f4<\/strong>\u9875\u9762,\u6307\u5b9a\u53ef\u4ee5\u8fde\u63a5\u7684 IP \u5730\u5740\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728<strong>\u64cd\u4f5c<\/strong>\u9875\u9762,\u9009\u62e9<strong>\u5141\u8bb8\u8fde\u63a5<\/strong>\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728<strong>\u914d\u7f6e\u6587\u4ef6<\/strong>\u9875\u9762,\u9009\u62e9\u89c4\u5219\u9002\u7528\u7684\u7f51\u7edc\u4f4d\u7f6e\u7c7b\u578b\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728<strong>\u540d\u79f0<\/strong>\u9875\u9762,\u8f93\u5165\u540d\u79f0\u548c\u63cf\u8ff0,\u7136\u540e\u70b9\u51fb<strong>\u5b8c\u6210<\/strong>\u3002<\/p>\n<\/li>\n<\/ol>\n<blockquote>\n<p>\u26a0\ufe0f <strong>\u63d0\u793a\uff1a<\/strong>\u914d\u7f6e\u9519\u8bef\u7684\u9632\u706b\u5899\u53ef\u80fd\u5bfc\u81f4 C socket \u670d\u52a1\u5668\u65ad\u5f00\u8fde\u63a5\u6216\u62d2\u7edd\u65b0\u8fde\u63a5\u3002\u5982\u679c\u60a8\u53d1\u73b0\u9891\u7e41\u65ad\u5f00\u8fde\u63a5,\u8bf7\u68c0\u67e5\u7a7a\u95f2\u8d85\u65f6\u8bbe\u7f6e\u5e76\u589e\u52a0 TCP keepalive \u6570\u636e\u5305\u4ee5\u7ef4\u6301\u7a33\u5b9a\u8fde\u63a5\u3002<\/p>\n<\/blockquote>\n<p>\u60a8\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5de5\u5177\u68c0\u67e5\u9632\u706b\u5899\u662f\u5426\u963b\u6b62\u4e86\u60a8\u7684\u7aef\u53e3\u3002\u6253\u5f00\u547d\u4ee4\u63d0\u793a\u7b26\u5e76\u8fd0\u884c <code>netstat -an<\/code> \u67e5\u770b\u6d3b\u52a8\u8fde\u63a5\u3002\u4ece Microsoft Sysinternals \u7f51\u7ad9\u4e0b\u8f7d TcpView \u6765\u67e5\u770b\u5b9e\u65f6\u5957\u63a5\u5b57\u6d3b\u52a8\u3002<\/p>\n<h3>\u8bbe\u7f6e\u7aef\u53e3\u8f6c\u53d1<\/h3>\n<p>\u5982\u679c\u60a8\u5e0c\u671b C socket \u670d\u52a1\u5668\u63a5\u53d7\u6765\u81ea\u672c\u5730\u7f51\u7edc\u5916\u90e8\u7684\u8fde\u63a5,\u5fc5\u987b\u5728\u8def\u7531\u5668\u4e0a\u8bbe\u7f6e\u7aef\u53e3\u8f6c\u53d1\u3002\u6b64\u8fc7\u7a0b\u5c06\u7279\u5b9a\u7aef\u53e3\u4e0a\u7684\u5165\u7ad9\u6d41\u91cf\u5b9a\u5411\u5230\u670d\u52a1\u5668\u7684\u79c1\u6709 IP \u5730\u5740\u3002<\/p>\n<ul>\n<li>\n<p>\u767b\u5f55\u8def\u7531\u5668\u7684\u7ba1\u7406\u9875\u9762\u3002<\/p>\n<\/li>\n<li>\n<p>\u627e\u5230\u7aef\u53e3\u8f6c\u53d1\u90e8\u5206,\u901a\u5e38\u79f0\u4e3a&#8221;\u865a\u62df\u670d\u52a1\u5668&#8221;\u6216&#8221;NAT&#8221;\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e3a C socket \u670d\u52a1\u5668\u4f7f\u7528\u7684\u7aef\u53e3\u6dfb\u52a0\u65b0\u89c4\u5219\u3002<\/p>\n<\/li>\n<li>\n<p>\u8f93\u5165\u670d\u52a1\u5668\u7684\u79c1\u6709 IP \u5730\u5740\u548c\u7aef\u53e3\u53f7\u3002<\/p>\n<\/li>\n<li>\n<p>\u4fdd\u5b58\u66f4\u6539,\u5982\u6709\u9700\u8981\u91cd\u542f\u8def\u7531\u5668\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u7aef\u53e3\u8f6c\u53d1\u7684\u6210\u529f\u7387\u53d6\u51b3\u4e8e\u60a8\u7684\u7f51\u7edc\u8bbe\u7f6e\u3002\u4f8b\u5982,\u4e00\u822c NAT \u7a7f\u900f\u7684\u6210\u529f\u7387\u7ea6\u4e3a 70%,\u800c\u6253\u6d1e\u6280\u672f\u53ef\u4ee5\u8fbe\u5230\u8d85\u8fc7 80% \u7684\u6210\u529f\u7387\u3002\u5982\u679c\u53cc\u65b9\u90fd\u5728\u4e25\u683c\u7684 NAT \u540e\u9762,\u6210\u529f\u7387\u4f1a\u6025\u5267\u4e0b\u964d\u3002\u4ee5\u4e0b\u662f\u4e0d\u540c\u6761\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>\u6761\u4ef6<\/th>\n<th>\u6210\u529f\u7387<\/th>\n<\/tr>\n<tr>\n<td>0.4% \u641c\u7d22\u7a7a\u95f4\u8986\u76d6<\/td>\n<td>64%<\/td>\n<\/tr>\n<tr>\n<td>3.1% \u641c\u7d22\u7a7a\u95f4\u8986\u76d6<\/td>\n<td>99.9%<\/td>\n<\/tr>\n<tr>\n<td>\u53cc\u65b9\u90fd\u5728 EDM NAT \u540e (2048 vs 256)<\/td>\n<td>0.01%<\/td>\n<\/tr>\n<tr>\n<td>\u6df7\u5408 EDM\/EIM \u5bf9\u7b49\u7ec4\u5408<\/td>\n<td>\u9884\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\u672f<\/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\u7aef\u53e3\u8f6c\u53d1\u540e C socket \u670d\u52a1\u5668\u4ecd\u65e0\u6cd5\u63a5\u53d7\u516c\u7f51\u8fde\u63a5,\u60a8\u7684 ISP \u53ef\u80fd\u963b\u6b62\u4e86\u67d0\u4e9b\u7aef\u53e3\u3002\u5c1d\u8bd5\u4f7f\u7528\u4e0d\u540c\u7684\u7aef\u53e3\u6216\u8054\u7cfb\u60a8\u7684\u670d\u52a1\u63d0\u4f9b\u5546\u5bfb\u6c42\u5e2e\u52a9\u3002<\/p>\n<\/blockquote>\n<h3>\u6d4b\u8bd5\u7aef\u53e3\u53ef\u8bbf\u95ee\u6027<\/h3>\n<p>\u5728\u8bbe\u7f6e\u5b8c\u9632\u706b\u5899\u548c\u7aef\u53e3\u8f6c\u53d1\u540e,\u60a8\u5e94\u8be5\u6d4b\u8bd5 C socket \u670d\u52a1\u5668\u7aef\u53e3\u662f\u5426\u53ef\u8bbf\u95ee\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u51e0\u79cd\u5de5\u5177\u8fdb\u884c\u6d4b\u8bd5\uff1a<\/p>\n<ul>\n<li>\n<p><strong>PowerShell \u7684 Test-NetConnection\uff1a<\/strong>\u6253\u5f00 PowerShell \u5e76\u8f93\u5165 <code>Test-NetConnection -ComputerName &lt;\u60a8\u7684\u516c\u7f51IP&gt; -Port &lt;\u7aef\u53e3\u53f7&gt;<\/code>\u3002\u6b64\u547d\u4ee4\u68c0\u67e5\u7aef\u53e3\u662f\u5426\u5f00\u653e\u3002<\/p>\n<\/li>\n<li>\n<p><strong>curl\uff1a<\/strong>\u5728\u547d\u4ee4\u63d0\u793a\u7b26\u4e2d\u4f7f\u7528 <code>curl &lt;\u60a8\u7684\u516c\u7f51IP&gt;:&lt;\u7aef\u53e3\u53f7&gt;<\/code> \u5c1d\u8bd5\u8fde\u63a5\u5230\u60a8\u7684\u670d\u52a1\u5668\u3002<\/p>\n<\/li>\n<li>\n<p><strong>ssh\uff1a<\/strong>\u5982\u679c\u542f\u7528\u4e86 SSH,\u5c1d\u8bd5\u8fde\u63a5\u5230\u670d\u52a1\u5668\u7684\u7aef\u53e3\u4ee5\u786e\u8ba4\u53ef\u8bbf\u95ee\u6027\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u60a8\u8fd8\u53ef\u4ee5\u4f7f\u7528 telnet \u5ba2\u6237\u7aef\u68c0\u67e5\u7aef\u53e3\u72b6\u6001\u3002\u9996\u5148,\u786e\u4fdd\u5728 Windows \u4e2d\u542f\u7528\u4e86 telnet \u529f\u80fd\u3002\u6253\u5f00\u547d\u4ee4\u63d0\u793a\u7b26\u5e76\u8f93\u5165 <code>telnet &lt;IP\u5730\u5740&gt; &lt;\u7aef\u53e3\u53f7&gt;<\/code>\u3002\u5982\u679c\u770b\u5230\u95ea\u70c1\u7684\u5149\u6807,\u8bf4\u660e\u7aef\u53e3\u662f\u5f00\u653e\u7684\u3002\u5982\u679c\u6536\u5230&#8221;\u8fde\u63a5\u5931\u8d25&#8221;\u6d88\u606f,\u8bf4\u660e\u7aef\u53e3\u662f\u5173\u95ed\u7684\u3002<\/p>\n<blockquote>\n<p>\u2705 <strong>\u5feb\u901f\u68c0\u67e5\uff1a<\/strong>\u59cb\u7ec8\u4ece\u7f51\u7edc\u5185\u90e8\u548c\u5916\u90e8\u6d4b\u8bd5\u60a8\u7684 C socket \u670d\u52a1\u5668\u3002\u8fd9\u4e00\u6b65\u53ef\u4ee5\u5e2e\u52a9\u60a8\u786e\u5b9a\u95ee\u9898\u662f\u672c\u5730\u7684\u8fd8\u662f\u4e0e\u516c\u7f51 IP \u8bbe\u7f6e\u76f8\u5173\u3002<\/p>\n<\/blockquote>\n<h2>\u9a8c\u8bc1\u670d\u52a1\u5668\u548c\u7f51\u7edc\u8bbe\u7f6e<\/h2>\n<h3>\u786e\u4fdd\u670d\u52a1\u5668\u6b63\u5728\u8fd0\u884c<\/h3>\n<p>\u60a8\u9700\u8981\u786e\u8ba4\u670d\u52a1\u5668\u5904\u4e8e\u6d3b\u52a8\u72b6\u6001\u5e76\u5728\u76d1\u542c\u8fde\u63a5\u3002\u5982\u679c\u670d\u52a1\u5668\u6ca1\u6709\u8fd0\u884c,\u5ba2\u6237\u7aef\u5c06\u65e0\u6cd5\u8fde\u63a5\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u591a\u4e2a\u547d\u4ee4\u6765\u68c0\u67e5\u670d\u52a1\u5668\u72b6\u6001\u3002\u4e0b\u8868\u663e\u793a\u4e86\u4e00\u4e9b\u53ef\u9760\u7684\u65b9\u6cd5\u6765\u9a8c\u8bc1\u670d\u52a1\u5668\u662f\u5426\u5728\u76d1\u542c\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>\u68c0\u67e5\u5957\u63a5\u5b57\u662f\u5426\u5728\u7aef\u53e3 8080 \u4e0a\u76d1\u542c<\/td>\n<\/tr>\n<tr>\n<td>`ss &#8211;listening &#8211;numeric &#8211;tcp | grep 8080`<\/td>\n<td>\u68c0\u67e5 TCP \u7aef\u53e3 8080 \u7684\u76d1\u542c\u72b6\u6001<\/td>\n<\/tr>\n<tr>\n<td><code>cat \/proc\/net\/tcp<\/code><\/td>\n<td>\u663e\u793a\u5957\u63a5\u5b57 inode \u7684\u72b6\u6001<\/td>\n<\/tr>\n<tr>\n<td><code>stat --dereference --printf %i \/proc\/$SERVER_PROC\/fd\/3<\/code><\/td>\n<td>\u83b7\u53d6\u5957\u63a5\u5b57\u7684 inode<\/td>\n<\/tr>\n<tr>\n<td>`cat \/proc\/net\/tcp | grep $SERVER_SOCKET`<\/td>\n<td>\u67e5\u627e\u7279\u5b9a\u670d\u52a1\u5668\u5957\u63a5\u5b57<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u5982\u679c\u60a8\u5728\u5217\u8868\u4e2d\u770b\u5230\u60a8\u7684\u670d\u52a1\u5668,\u8bf4\u660e\u5b83\u5df2\u51c6\u5907\u597d\u63a5\u53d7\u8fde\u63a5\u3002\u5982\u679c\u6ca1\u6709,\u91cd\u542f\u670d\u52a1\u5668\u5e76\u518d\u6b21\u68c0\u67e5\u3002<\/p>\n<h3>\u786e\u8ba4\u6b63\u786e\u7684 IP \u548c\u7ed1\u5b9a<\/h3>\n<p>\u60a8\u5fc5\u987b\u5c06\u670d\u52a1\u5668\u7ed1\u5b9a\u5230\u6b63\u786e\u7684 IP \u5730\u5740\u548c\u7aef\u53e3\u3002\u5982\u679c\u4f7f\u7528\u9519\u8bef\u7684\u5730\u5740\u6216\u7aef\u53e3,\u5ba2\u6237\u7aef\u5c06\u65e0\u6cd5\u8fde\u63a5\u5230\u60a8\u7684\u670d\u52a1\u5668\u3002\u4ee5\u4e0b\u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u7ed1\u5b9a\u5957\u63a5\u5b57\u5e76\u68c0\u67e5\u9519\u8bef\uff1a<\/p>\n<blockquote>\n<pre><code>\/\/ \u8bbe\u7f6e TCP \u76d1\u542c\u5957\u63a5\u5b57\r\niResult = bind( ListenSocket, result->ai_addr, (int)result->ai_addrlen);\r\nif (iResult == SOCKET_ERROR) {\r\n    printf(\"\u7ed1\u5b9a\u5931\u8d25,\u9519\u8bef\u4ee3\u7801: %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>\u7ed1\u5b9a\u540e,\u60a8\u7684\u670d\u52a1\u5668\u5c31\u53ef\u4ee5\u76d1\u542c\u5165\u7ad9\u8fde\u63a5\u4e86\u3002\u5728\u6b64\u8fc7\u7a0b\u4e2d\u59cb\u7ec8\u68c0\u67e5\u9519\u8bef\u3002\u60a8\u8fd8\u5e94\u907f\u514d\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4ec5\u4f9d\u8d56 IP \u5730\u5740\u3002\u6709\u65f6,DNS \u67e5\u8be2\u4f1a\u8fd4\u56de\u4e00\u4e2a\u65e0\u6cd5\u8bbf\u95ee\u7684 IP,\u8fd9\u53ef\u80fd\u5bfc\u81f4\u8fde\u63a5\u95ee\u9898\u3002<\/p>\n<p>\u8981\u6b63\u786e\u8bbe\u7f6e\u670d\u52a1\u5668,\u8bf7\u9075\u5faa\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n<ol>\n<li>\n<p>\u521b\u5efa TCP \u5957\u63a5\u5b57\u3002<\/p>\n<\/li>\n<li>\n<p>\u5c06\u5957\u63a5\u5b57\u7ed1\u5b9a\u5230\u670d\u52a1\u5668\u5730\u5740\u3002<\/p>\n<\/li>\n<li>\n<p>\u5c06\u670d\u52a1\u5668\u5957\u63a5\u5b57\u7f6e\u4e8e\u88ab\u52a8\u6a21\u5f0f\u3002<\/p>\n<\/li>\n<li>\n<p>\u63a5\u53d7\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u3002<\/p>\n<\/li>\n<\/ol>\n<h3>\u8003\u8651 NAT \u548c\u516c\u7f51 IP \u95ee\u9898<\/h3>\n<p>\u7f51\u7edc\u5730\u5740\u8f6c\u6362(NAT)\u4f1a\u66f4\u6539\u6570\u636e\u5305\u4fe1\u606f,\u4f7f\u4f1a\u8bdd\u770b\u8d77\u6765\u50cf\u662f\u4ece NAT \u8bbe\u5907\u53d1\u8d77\u7684\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u5e2e\u52a9\u79c1\u6709\u4e3b\u673a\u8fde\u63a5\u5230\u516c\u5171\u670d\u52a1\u5668\u3002\u4f46\u662f,NAT \u4f7f\u5916\u90e8\u5ba2\u6237\u7aef\u66f4\u96be\u8fde\u63a5\u5230 NAT \u540e\u9762\u7684\u670d\u52a1\u5668\u3002\u5982\u679c\u60a8\u7684 C socket \u670d\u52a1\u5668\u4f4d\u4e8e NAT \u540e\u9762,\u60a8\u53ef\u80fd\u9700\u8981\u8c03\u6574\u8def\u7531\u5668\u8bbe\u7f6e\u6216\u4f7f\u7528\u7aef\u53e3\u8f6c\u53d1\u3002\u516c\u7f51 IP \u914d\u7f6e\u4e5f\u5f88\u91cd\u8981\u3002\u5982\u679c\u4f7f\u7528\u9519\u8bef\u7684\u516c\u7f51 IP,\u5ba2\u6237\u7aef\u5c06\u65e0\u6cd5\u627e\u5230\u60a8\u7684\u670d\u52a1\u5668\u3002<\/p>\n<p>\u5e38\u89c1\u9519\u8bef\u5305\u62ec\u4f9d\u8d56 DNS \u65e0\u6cd5\u89e3\u6790\u7684 IP \u5730\u5740\u6216\u6307\u5411\u65e0\u6cd5\u8bbf\u95ee\u7684\u4e3b\u673a\u3002\u59cb\u7ec8\u68c0\u67e5\u60a8\u7684 DNS \u8bbe\u7f6e\u5e76\u786e\u4fdd\u60a8\u7684\u516c\u7f51 IP \u662f\u6b63\u786e\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u7406\u89e3 NAT \u548c\u516c\u7f51 IP \u7684\u5de5\u4f5c\u539f\u7406,\u5c31\u53ef\u4ee5\u907f\u514d\u8bb8\u591a\u8fde\u63a5\u95ee\u9898\u3002<\/p>\n<h2>\u6d4b\u8bd5 C Socket \u670d\u52a1\u5668\u8fde\u63a5<\/h2>\n<h3>\u6d4b\u8bd5\u672c\u5730\u548c\u79c1\u6709 IP<\/h3>\n<p>\u9996\u5148\u4f7f\u7528 localhost \u5730\u5740(127.0.0.1)\u5728\u540c\u4e00\u53f0\u673a\u5668\u4e0a\u6d4b\u8bd5\u60a8\u7684 C socket \u670d\u52a1\u5668\u3002\u8fd9\u4e00\u6b65\u53ef\u4ee5\u5e2e\u52a9\u60a8\u5728\u5c1d\u8bd5\u8fdc\u7a0b\u8fde\u63a5\u4e4b\u524d\u786e\u8ba4\u670d\u52a1\u5668\u6b63\u5e38\u5de5\u4f5c\u3002\u60a8\u8fd8\u53ef\u4ee5\u4f7f\u7528\u79c1\u6709 IP \u5730\u5740\u68c0\u67e5\u672c\u5730\u7f51\u7edc\u4e0a\u7684\u8bbe\u5907\u662f\u5426\u53ef\u4ee5\u8fde\u63a5\u3002\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u6d4b\u8bd5\u60a8\u7684\u670d\u52a1\u5668\uff1a<\/p>\n<ol>\n<li>\n<p>\u4f7f\u7528 <code>socket()<\/code> \u51fd\u6570\u521b\u5efa\u5957\u63a5\u5b57\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528 <code>setsockopt<\/code> \u8bbe\u7f6e\u5957\u63a5\u5b57\u9009\u9879,\u4ee5\u907f\u514d&#8221;\u5730\u5740\u5df2\u5728\u4f7f\u7528&#8221;\u7b49\u9519\u8bef\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528 <code>bind()<\/code> \u5c06\u5957\u63a5\u5b57\u7ed1\u5b9a\u5230\u5730\u5740\u548c\u7aef\u53e3\u3002\u5bf9\u4e8e localhost \u4f7f\u7528 <code>INADDR_ANY<\/code>\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528 <code>listen()<\/code> \u5c06\u670d\u52a1\u5668\u7f6e\u4e8e\u88ab\u52a8\u6a21\u5f0f\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528 <code>accept()<\/code> \u63a5\u53d7\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528 <code>send()<\/code> \u548c <code>recv()<\/code> \u4ea4\u6362\u6570\u636e\u3002<\/p>\n<\/li>\n<li>\n<p>\u5b8c\u6210\u540e\u4f7f\u7528 <code>close()<\/code> \u5173\u95ed\u5957\u63a5\u5b57\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u5982\u679c\u53ef\u4ee5\u672c\u5730\u8fde\u63a5,\u90a3\u4e48\u60a8\u7684\u670d\u52a1\u5668\u4ee3\u7801\u548c\u914d\u7f6e\u53ef\u80fd\u662f\u6b63\u786e\u7684\u3002<\/p>\n<h3>\u8fdc\u7a0b\u6d4b\u8bd5\u516c\u7f51 IP<\/h3>\n<p>\u672c\u5730\u6d4b\u8bd5\u540e,\u5c1d\u8bd5\u4ece\u7f51\u7edc\u5916\u7684\u8bbe\u5907\u8fde\u63a5\u5230\u60a8\u7684 C socket \u670d\u52a1\u5668\u3002\u4f7f\u7528\u60a8\u7684\u516c\u7f51 IP \u5730\u5740\u8fdb\u884c\u6b64\u6d4b\u8bd5\u3002\u786e\u4fdd\u60a8\u5df2\u8bbe\u7f6e\u7aef\u53e3\u8f6c\u53d1\u548c\u9632\u706b\u5899\u89c4\u5219\u3002\u5982\u679c\u8fde\u63a5\u5931\u8d25,\u68c0\u67e5\u60a8\u7684 ISP \u662f\u5426\u963b\u6b62\u4e86\u67d0\u4e9b\u7aef\u53e3\u6216\u8def\u7531\u5668\u662f\u5426\u9700\u8981\u66f4\u591a\u914d\u7f6e\u3002\u4ece\u79fb\u52a8\u8bbe\u5907\u6216\u670b\u53cb\u7684\u7535\u8111\u8fdb\u884c\u6d4b\u8bd5\u53ef\u4ee5\u5e2e\u52a9\u60a8\u786e\u8ba4\u670d\u52a1\u5668\u662f\u5426\u53ef\u4ee5\u4ece\u4e92\u8054\u7f51\u8bbf\u95ee\u3002<\/p>\n<blockquote>\n<p>\ud83d\udee1\ufe0f <strong>\u63d0\u793a\uff1a<\/strong>\u59cb\u7ec8\u4ece\u7f51\u7edc\u5185\u90e8\u548c\u5916\u90e8\u8fdb\u884c\u6d4b\u8bd5\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5e2e\u52a9\u60a8\u627e\u51fa\u8fde\u63a5\u5728\u54ea\u91cc\u4e2d\u65ad\u3002<\/p>\n<\/blockquote>\n<h3>\u4f7f\u7528\u7f51\u7edc\u5de5\u5177<\/h3>\n<p>\u7f51\u7edc\u5de5\u5177\u53ef\u4ee5\u5e2e\u52a9\u60a8\u8bca\u65ad\u8fde\u63a5\u95ee\u9898\u3002\u4f7f\u7528 <code>ping<\/code> \u68c0\u67e5\u670d\u52a1\u5668\u662f\u5426\u54cd\u5e94\u7f51\u7edc\u8bf7\u6c42\u3002\u5c1d\u8bd5\u4f7f\u7528 <code>telnet<\/code> \u6216 <code>netcat<\/code> \u6d4b\u8bd5\u7aef\u53e3\u662f\u5426\u5f00\u653e\u5e76\u63a5\u53d7\u8fde\u63a5\u3002\u60a8\u8fd8\u53ef\u4ee5\u4f7f\u7528 <code>nslookup<\/code> \u89e3\u6790\u57df\u540d,\u4f7f\u7528 <code>tcpdump<\/code> \u6355\u83b7\u7f51\u7edc\u6d41\u91cf\u8fdb\u884c\u6df1\u5165\u5206\u6790\u3002SNMP \u8f6e\u8be2\u5668\u548c\u88ab\u52a8\u5206\u6790\u5668\u53ef\u4ee5\u663e\u793a\u7f51\u7edc\u8bbe\u5907\u72b6\u6001\u5e76\u5e2e\u52a9\u60a8\u53d1\u73b0\u74f6\u9888\u3002\u50cf NetBeez \u8fd9\u6837\u7684\u4e3b\u52a8\u6d4b\u8bd5\u5de5\u5177\u53ef\u4ee5\u6d4b\u91cf\u5f80\u8fd4\u65f6\u95f4\u548c\u6570\u636e\u5305\u4e22\u5931,\u63d0\u9192\u60a8\u6027\u80fd\u95ee\u9898\u3002<\/p>\n<blockquote>\n<p>\ud83d\udd0d <strong>\u6ce8\u610f\uff1a<\/strong>\u7ed3\u5408\u4f7f\u7528\u8fd9\u4e9b\u5de5\u5177\u53ef\u4ee5\u8ba9\u60a8\u6e05\u695a\u5730\u4e86\u89e3\u7f51\u7edc\u72b6\u51b5,\u5e2e\u52a9\u60a8\u66f4\u5feb\u5730\u89e3\u51b3\u95ee\u9898\u3002<\/p>\n<\/blockquote>\n<h2>\u5ba2\u6237\u7aef\u548c\u8def\u7531\u5668\u6545\u969c\u6392\u9664<\/h2>\n<h3>\u68c0\u67e5\u5ba2\u6237\u7aef\u914d\u7f6e<\/h3>\n<p>\u60a8\u5e94\u8be5\u59cb\u7ec8\u4ece\u68c0\u67e5\u5ba2\u6237\u7aef\u914d\u7f6e\u5f00\u59cb\u3002\u8bb8\u591a\u8fde\u63a5\u95ee\u9898\u6e90\u4e8e\u5ba2\u6237\u7aef\u3002\u67e5\u770b\u5e94\u7528\u7a0b\u5e8f\u65e5\u5fd7\u6216\u63a7\u5236\u53f0\u8f93\u51fa\u4e2d\u7684\u9519\u8bef\u6d88\u606f\u3002\u8fd9\u4e9b\u6d88\u606f\u901a\u5e38\u6307\u5411\u6839\u672c\u539f\u56e0\u3002\u786e\u4fdd\u60a8\u7684\u9632\u706b\u5899\u6216\u5b89\u5168\u8f6f\u4ef6\u4e0d\u4f1a\u963b\u6b62 C socket \u670d\u52a1\u5668\u4f7f\u7528\u7684\u7aef\u53e3\u4e0a\u7684\u7f51\u7edc\u6d41\u91cf\u3002\u4ed4\u7ec6\u68c0\u67e5\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u662f\u5426\u4f7f\u7528\u76f8\u540c\u7684\u534f\u8bae(\u5982 TCP \u6216 UDP)\u548c\u76f8\u540c\u7684\u5bfb\u5740\u65b9\u6848(\u5982 IPv4 \u6216 IPv6)\u3002\u786e\u8ba4\u60a8\u7684\u5ba2\u6237\u7aef\u53ef\u4ee5\u8bbf\u95ee\u670d\u52a1\u5668\u7684 IP \u5730\u5740,\u5e76\u4e14\u670d\u52a1\u5668\u6b63\u5728\u8fd0\u884c\u5e76\u51c6\u5907\u63a5\u53d7\u8fde\u63a5\u3002<\/p>\n<ul>\n<li>\n<p>\u68c0\u67e5\u65e5\u5fd7\u6216\u63a7\u5236\u53f0\u8f93\u51fa\u4e2d\u7684\u9519\u8bef\u6d88\u606f\u3002<\/p>\n<\/li>\n<li>\n<p>\u786e\u4fdd\u9632\u706b\u5899\u6216\u5b89\u5168\u8f6f\u4ef6\u5141\u8bb8\u6b63\u786e\u7aef\u53e3\u4e0a\u7684\u6d41\u91cf\u3002<\/p>\n<\/li>\n<li>\n<p>\u9a8c\u8bc1\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u4f7f\u7528\u76f8\u540c\u7684\u534f\u8bae\u548c\u5730\u5740\u7c7b\u578b\u3002<\/p>\n<\/li>\n<li>\n<p>\u786e\u8ba4\u670d\u52a1\u5668\u6b63\u5728\u8fd0\u884c\u4e14\u53ef\u8bbf\u95ee\u3002<\/p>\n<\/li>\n<\/ul>\n<blockquote>\n<p>\ud83d\udee0\ufe0f <strong>\u63d0\u793a\uff1a<\/strong>\u5982\u679c\u770b\u5230\u91cd\u590d\u7684\u8fde\u63a5\u5931\u8d25,\u5c1d\u8bd5\u91cd\u542f\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u6216\u8ba1\u7b97\u673a\u3002<\/p>\n<\/blockquote>\n<h3>\u5c1d\u8bd5\u4e0d\u540c\u7684\u5ba2\u6237\u7aef\u6216\u7f51\u7edc<\/h3>\n<p>\u6709\u65f6\u95ee\u9898\u6765\u81ea\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u6216\u7f51\u7edc\u73af\u5883\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4e0d\u540c\u7684\u5ba2\u6237\u7aef\u7a0b\u5e8f\u6216\u8bbe\u5907\u6d4b\u8bd5\u670d\u52a1\u5668\u3002\u5c1d\u8bd5\u4ece\u53e6\u4e00\u53f0\u8ba1\u7b97\u673a\u3001\u667a\u80fd\u624b\u673a\u6216\u5e73\u677f\u7535\u8111\u8fde\u63a5\u3002\u5982\u679c\u53ef\u80fd,\u4f7f\u7528\u4e0d\u540c\u7684\u7f51\u7edc,\u5982\u79fb\u52a8\u70ed\u70b9\u6216\u670b\u53cb\u7684 Wi-Fi\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5e2e\u52a9\u60a8\u786e\u5b9a\u95ee\u9898\u662f\u5426\u51fa\u5728\u539f\u59cb\u5ba2\u6237\u7aef\u6216\u7f51\u7edc\u4e0a\u3002<\/p>\n<ul>\n<li>\n<p>\u4f7f\u7528\u53e6\u4e00\u4e2a\u5ba2\u6237\u7aef\u5e94\u7528\u7a0b\u5e8f\u6392\u9664\u8f6f\u4ef6\u9519\u8bef\u3002<\/p>\n<\/li>\n<li>\n<p>\u5207\u6362\u5230\u4e0d\u540c\u7684\u8bbe\u5907\u68c0\u67e5\u786c\u4ef6\u95ee\u9898\u3002<\/p>\n<\/li>\n<li>\n<p>\u4ece\u53e6\u4e00\u4e2a\u7f51\u7edc\u8fde\u63a5,\u770b\u770b\u5f53\u524d\u7f51\u7edc\u662f\u5426\u963b\u6b62\u8fde\u63a5\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5982\u679c\u4e0d\u540c\u7684\u5ba2\u6237\u7aef\u6216\u7f51\u7edc\u53ef\u4ee5\u5de5\u4f5c,\u60a8\u5c31\u77e5\u9053\u95ee\u9898\u4e0d\u5728\u670d\u52a1\u5668\u7aef\u3002<\/p>\n<h3>\u68c0\u67e5\u8def\u7531\u5668\u548c ISP \u9650\u5236<\/h3>\n<p>\u60a8\u7684\u8def\u7531\u5668\u6216\u4e92\u8054\u7f51\u670d\u52a1\u63d0\u4f9b\u5546\u53ef\u80fd\u4f1a\u963b\u6b62\u8bbf\u95ee\u60a8\u7684 C socket \u670d\u52a1\u5668\u3002\u8bb8\u591a ISP \u4f7f\u7528\u8fd0\u8425\u5546\u7ea7 NAT(CG-NAT)\u6765\u7ba1\u7406\u6709\u9650\u7684 IPv4 \u5730\u5740\u3002CG-NAT \u5728\u60a8\u7684\u5bb6\u5ead\u7f51\u7edc\u548c\u4e92\u8054\u7f51\u4e4b\u95f4\u589e\u52a0\u4e86\u4e00\u4e2a\u989d\u5916\u7684\u8def\u7531\u5c42\u3002\u8fd9\u79cd\u8bbe\u7f6e\u4f1a\u4f7f\u5916\u90e8\u8bbe\u5907\u96be\u4ee5\u8fde\u63a5\u5230\u60a8\u7684\u670d\u52a1\u5668\u3002CG-NAT \u5185\u90e8\u7684\u6570\u636e\u5305\u8f6c\u6362\u95ee\u9898\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u5305\u4e22\u5931\u548c\u8fde\u63a5\u4e2d\u65ad\u3002<\/p>\n<ul>\n<li>\n<p>ISP \u53ef\u80fd\u4f7f\u7528 CG-NAT,\u8fd9\u4f1a\u963b\u6b62\u76f4\u63a5\u8bbf\u95ee\u60a8\u7684\u516c\u7f51 IP\u3002<\/p>\n<\/li>\n<li>\n<p>CG-NAT \u589e\u52a0\u4e86\u53e6\u4e00\u4e2a\u8def\u7531\u5668\u5c42,\u4f7f\u7aef\u53e3\u8f6c\u53d1\u53d8\u5f97\u56f0\u96be\u3002<\/p>\n<\/li>\n<li>\n<p>CG-NAT \u4e2d\u7684\u6570\u636e\u5305\u8f6c\u6362\u95ee\u9898\u53ef\u80fd\u4f1a\u65ad\u5f00\u8fde\u63a5\u3002<\/p>\n<\/li>\n<\/ul>\n<blockquote>\n<p>\u26a0\ufe0f <strong>\u6ce8\u610f\uff1a<\/strong>\u5982\u679c\u60a8\u6000\u7591\u662f CG-NAT \u95ee\u9898,\u8bf7\u8054\u7cfb\u60a8\u7684 ISP,\u8be2\u95ee\u4ed6\u4eec\u662f\u5426\u652f\u6301\u7aef\u53e3\u8f6c\u53d1\u6216\u63d0\u4f9b\u516c\u7f51 IP \u9009\u9879\u3002<\/p>\n<\/blockquote>\n<div dividerstyle=\"solid\" size=\"large\" color=\"#D1D1D1\" class=\"qc-divider-wrapper\">\n<div class=\"qc-divider\" style=\"border-top-style: solid; width: 100%; border-top-color: rgb(209, 209, 209);\"><\/div>\n<\/div>\n<p>\u60a8\u53ef\u4ee5\u901a\u8fc7\u9075\u5faa\u6e05\u6670\u7684\u6d41\u7a0b\u89e3\u51b3\u5927\u591a\u6570 C socket \u670d\u52a1\u5668\u8fde\u63a5\u95ee\u9898\u3002\u4ece\u8fd9\u4e9b\u6b65\u9aa4\u5f00\u59cb\uff1a<\/p>\n<ol>\n<li>\n<p>\u7ed8\u5236\u7f51\u7edc\u56fe\u4ee5\u67e5\u770b\u8def\u5f84\u4e2d\u7684\u6240\u6709\u8bbe\u5907\u3002<\/p>\n<\/li>\n<li>\n<p>\u8fd0\u884c\u7f51\u7edc\u8ddf\u8e2a\u4ee5\u53d1\u73b0\u95ee\u9898\u3002<\/p>\n<\/li>\n<li>\n<p>ping \u60a8\u7684\u672c\u5730 IP \u4ee5\u68c0\u67e5\u7f51\u7edc\u5806\u6808\u3002<\/p>\n<\/li>\n<li>\n<p>\u67e5\u770b ping \u6216 telnet \u6d4b\u8bd5\u7684\u9519\u8bef\u6d88\u606f\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u4fdd\u6301\u7cfb\u7edf\u5316\u7684\u65b9\u6cd5,\u60a8\u5c31\u80fd\u627e\u5230\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<h2>\u5e38\u89c1\u95ee\u9898\u89e3\u7b54<\/h2>\n<h3>\u4e3a\u4ec0\u4e48\u6211\u65e0\u6cd5\u4ece\u7f51\u7edc\u5916\u90e8\u8fde\u63a5\u5230\u6211\u7684 C socket \u670d\u52a1\u5668\uff1f<\/h3>\n<p>\u60a8\u53ef\u80fd\u9057\u6f0f\u4e86\u7aef\u53e3\u8f6c\u53d1\u6216\u9632\u706b\u5899\u963b\u6b62\u4e86\u8fde\u63a5\u3002\u4ed4\u7ec6\u68c0\u67e5\u8def\u7531\u5668\u7684\u7aef\u53e3\u8f6c\u53d1\u8bbe\u7f6e,\u5e76\u786e\u4fdd Windows \u9632\u706b\u5899\u5141\u8bb8\u670d\u52a1\u5668\u7aef\u53e3\u4e0a\u7684\u6d41\u91cf\u3002<\/p>\n<h3>\u5982\u4f55\u68c0\u67e5\u670d\u52a1\u5668\u662f\u5426\u5728\u6b63\u786e\u7684\u7aef\u53e3\u4e0a\u76d1\u542c\uff1f<\/h3>\n<p>\u6253\u5f00\u547d\u4ee4\u63d0\u793a\u7b26\u5e76\u8fd0\u884c\uff1a<\/p>\n<pre><code>netstat -an | find \"&lt;\u7aef\u53e3\u53f7&gt;\"\r\n<\/code><\/pre>\n<p>\u5982\u679c\u5728\u7aef\u53e3\u65c1\u8fb9\u770b\u5230&#8221;LISTENING&#8221;,\u5219\u8868\u793a\u670d\u52a1\u5668\u5904\u4e8e\u6d3b\u52a8\u72b6\u6001\u3002<\/p>\n<h3>\u5982\u679c\u6536\u5230&#8221;\u8fde\u63a5\u88ab\u62d2\u7edd&#8221;\u9519\u8bef\u8be5\u600e\u4e48\u529e\uff1f<\/h3>\n<p>\u6b64\u9519\u8bef\u8868\u793a\u60a8\u7684\u670d\u52a1\u5668\u4e0d\u63a5\u53d7\u8fde\u63a5\u3002\u91cd\u542f\u670d\u52a1\u5668,\u9a8c\u8bc1 IP \u548c\u7aef\u53e3,\u5e76\u786e\u4fdd\u6ca1\u6709\u5176\u4ed6\u5e94\u7528\u7a0b\u5e8f\u4f7f\u7528\u76f8\u540c\u7684\u7aef\u53e3\u3002<\/p>\n<h3>\u6211\u7684 ISP \u80fd\u963b\u6b62\u6211\u7684 C socket \u670d\u52a1\u5668\u5417\uff1f<\/h3>\n<p>\u662f\u7684\u3002\u67d0\u4e9b ISP \u4f1a\u963b\u6b62\u5165\u7ad9\u8fde\u63a5\u6216\u7279\u5b9a\u7aef\u53e3\u3002\u5982\u679c\u60a8\u6000\u7591\u8fd9\u4e00\u70b9,\u5c1d\u8bd5\u4f7f\u7528\u4e0d\u540c\u7684\u7aef\u53e3\u6216\u8054\u7cfb\u60a8\u7684 ISP \u83b7\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u4f7f\u7528 Windows \u7cfb\u7edf\u7684 C socket \u670d\u52a1\u5668\u65f6,\u7279\u522b\u662f\u5728\u4f7f\u7528\u7f8e\u56fd\u670d\u52a1\u5668\u79df\u7528\u4f9b\u5e94\u5546\u65f6,\u7ecf\u5e38\u4f1a\u9047\u5230\u8fde\u63a5\u95ee\u9898\u3002\u5927\u591a\u6570\u95ee\u9898\u6e90\u4e8e\u9632\u706b\u5899\u963b\u6b62\u3001\u7f51\u7edc\u5e72\u6270\u6216\u4ee3\u7801\u9519\u8bef\u3002\u60a8\u53ef\u80fd\u4f1a\u56e0\u4e3a\u6570\u636e\u5305\u4e22\u5931\u3001TCP \u5934\u53c2\u6570\u4e0d\u6b63\u786e\u6216\u5e94\u7528\u7a0b\u5e8f\u7a81\u7136\u91cd\u7f6e\u800c\u5bfc\u81f4\u8fde\u63a5\u5931\u8d25\u3002\u5982\u679c\u6309\u6b65\u9aa4\u68c0\u67e5\u8fd9\u4e9b\u95ee\u9898,\u5c31\u80fd\u5feb\u901f\u627e\u51fa\u95ee\u9898\u6240\u5728\u5e76\u8fdb\u884c\u4fee\u590d\u3002 \u6570\u636e\u5305\u4e22\u5931\u53ef\u80fd\u5bfc\u81f4\u8fde\u63a5\u4e2d\u65ad\u3002 \u4e0d\u6b63\u786e\u7684 TCP \u5934\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u5305\u88ab\u62d2\u7edd\u3002 \u5e94\u7528\u7a0b\u5e8f\u91cd\u7f6e\u901a\u5e38\u53d1\u751f\u5728\u6570\u636e\u4f20\u8f93\u5931\u8d25\u4e4b\u540e\u3002 \u901a\u8fc7\u4f7f\u7528\u7cfb\u7edf\u5316\u7684\u65b9\u6cd5,\u60a8\u53ef\u4ee5\u63d0\u9ad8\u89e3\u51b3\u8fde\u63a5\u95ee\u9898\u7684\u6548\u7387\u3002 \u4e3b\u8981\u8981\u70b9 \u68c0\u67e5\u5e38\u89c1\u9519\u8bef\u6d88\u606f\u5982 WSAENOTCONN \u548c WSAECONNREFUSED \u6765\u8bc6\u522b\u8fde\u63a5\u95ee\u9898\u3002 \u786e\u4fdd Windows \u9632\u706b\u5899\u5141\u8bb8 C socket \u670d\u52a1\u5668\u4f7f\u7528\u7684\u7aef\u53e3\u4e0a\u7684\u6d41\u91cf\u4ee5\u9632\u6b62\u963b\u585e\u3002 \u5728\u8def\u7531\u5668\u4e0a\u8bbe\u7f6e\u7aef\u53e3\u8f6c\u53d1\u4ee5\u542f\u7528\u5bf9 C socket \u670d\u52a1\u5668\u7684\u5916\u90e8\u8bbf\u95ee\u3002 \u4f7f\u7528 PowerShell \u548c telnet \u7b49\u5de5\u5177\u6d4b\u8bd5\u670d\u52a1\u5668\u7684\u53ef\u8bbf\u95ee\u6027\u3002 \u5728\u8fdb\u884c\u8fdb\u4e00\u6b65\u6545\u969c\u6392\u9664\u4e4b\u524d,\u59cb\u7ec8\u9a8c\u8bc1\u670d\u52a1\u5668\u662f\u5426\u6b63\u5728\u8fd0\u884c\u5e76\u7ed1\u5b9a\u5230\u6b63\u786e\u7684 IP \u5730\u5740\u548c\u7aef\u53e3\u3002 \u5e38\u89c1\u8fde\u63a5\u95ee\u9898 \u5178\u578b\u9519\u8bef\u6d88\u606f \u5f53\u60a8\u5c1d\u8bd5\u8fde\u63a5\u5230 C socket \u670d\u52a1\u5668\u65f6,\u53ef\u80fd\u4f1a\u770b\u5230\u51e0\u79cd\u9519\u8bef\u6d88\u606f\u3002\u8fd9\u4e9b\u6d88\u606f\u53ef\u4ee5\u5e2e\u52a9\u60a8\u7406\u89e3\u51fa\u73b0\u4e86\u4ec0\u4e48\u95ee\u9898\u3002\u4e00\u4e9b\u6700\u5e38\u89c1\u7684\u9519\u8bef\u5305\u62ec\uff1a WSAENOBUFS (10055): \u6b64\u9519\u8bef\u8868\u793a\u7cfb\u7edf\u7f13\u51b2\u533a\u7a7a\u95f4\u5df2\u7528\u5b8c\u6216\u961f\u5217\u5df2\u6ee1\u3002\u60a8\u53ef\u80fd\u9700\u8981\u91cd\u542f\u8ba1\u7b97\u673a\u6765\u89e3\u51b3\u6b64\u95ee\u9898\u3002 WSAENOTCONN (10057): \u6b64\u6d88\u606f\u544a\u8bc9\u60a8\u5957\u63a5\u5b57\u672a\u8fde\u63a5\u3002 WSAESHUTDOWN (10058): \u5957\u63a5\u5b57\u5173\u95ed\u540e\u65e0\u6cd5\u53d1\u9001\u6570\u636e\u3002 WSAETIMEDOUT (10060): \u8fde\u63a5\u8d85\u65f6,\u901a\u5e38\u662f\u56e0\u4e3a\u670d\u52a1\u5668\u6ca1\u6709\u54cd\u5e94\u3002 [&#8230;]<\/p>\n<p><a class=\"btn btn-secondary understrap-read-more-link\" href=\"https:\/\/www.varidata.com\/zh-cn\/blog\/windows-c-socket-server-public-ip-connection-guide\/\">Read More&#8230;<\/a><\/p>\n","protected":false},"author":11,"featured_media":29860,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[76],"tags":[],"class_list":["post-29863","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"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\u51b3Windows C Socket \u670d\u52a1\u5668\u516c\u7f51 IP \u8fde\u63a5\u95ee\u9898<\/title>\n<meta name=\"description\" content=\"\u5728 Windows \u7cfb\u7edf\u4e0a\u4fee\u590d\u901a\u8fc7\u516c\u7f51 IP \u8bbf\u95ee C socket \u670d\u52a1\u5668\u7684\u8fde\u63a5\u95ee\u9898\u3002\u68c0\u67e5\u9632\u706b\u5899\u3001\u7aef\u53e3\u8f6c\u53d1\u548c\u7f51\u7edc\u8bbe\u7f6e,\u5b9e\u73b0\u53ef\u9760\u7684\u8fdc\u7a0b\u8bbf\u95ee\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.varidata.com\/zh-cn\/blog\/windows-c-socket-server-public-ip-connection-guide\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5982\u4f55\u89e3\u51b3Windows C Socket \u670d\u52a1\u5668\u516c\u7f51 IP \u8fde\u63a5\u95ee\u9898\" \/>\n<meta property=\"og:url\" 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