{"id":19828,"date":"2025-04-19T08:00:41","date_gmt":"2025-04-19T00:00:41","guid":{"rendered":"https:\/\/www.varidata.com\/?p=19828"},"modified":"2025-04-11T16:55:57","modified_gmt":"2025-04-11T08:55:57","slug":"how-to-check-open-ports-on-us-servers","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-cn\/blog\/how-to-check-open-ports-on-us-servers\/","title":{"rendered":"\u5982\u4f55\u67e5\u770b\u7f8e\u56fd\u670d\u52a1\u5668\u54ea\u4e9b\u7aef\u53e3\u5f00\u653e\u7684\uff1f"},"content":{"rendered":"<div class=\"article-content\">\n<p>\u7aef\u53e3\u626b\u63cf\u548c\u76d1\u63a7\u662f\u5728\u7f8e\u56fd\u670d\u52a1\u5668\u4e0a\u7ef4\u62a4\u5b89\u5168<strong><a href=\"https:\/\/www.varidata.com\/zh-cn\/server\/us\/cn2\/\" target=\"_blank\">\u670d\u52a1\u5668\u79df\u7528<\/a><\/strong>\u73af\u5883\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\u3002\u4e86\u89e3\u7aef\u53e3\u53ef\u8bbf\u95ee\u6027\u6709\u52a9\u4e8e\u7ba1\u7406\u5458\u786e\u4fdd\u6700\u4f73\u7684\u7f51\u7edc\u914d\u7f6e\u548c\u4fdd\u62a4\u3002<\/p>\n<h2><strong>\u7406\u89e3\u7aef\u53e3\u626b\u63cf\u57fa\u7840<\/strong><\/h2>\n<div class=\"port-basics\">\n<p>\u7aef\u53e3\u626b\u63cf\u6d89\u53ca\u5bf9\u670d\u52a1\u5668\u7aef\u53e3\u8fdb\u884c\u7cfb\u7edf\u6027\u5206\u6790\u4ee5\u786e\u5b9a\u5176\u72b6\u6001\u548c\u53ef\u8bbf\u95ee\u6027\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u63ed\u793a\u4e86\u7f51\u7edc\u670d\u52a1\u548c\u6f5c\u5728\u6f0f\u6d1e\u7684\u5173\u952e\u4fe1\u606f\u3002<\/p>\n<div class=\"network-categories\">\n<table 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class=\"scanning-matrix\">\n<tr>\n<th>\u65b9\u6cd5\u7c7b\u578b<\/th>\n<th>\u5e94\u7528<\/th>\n<th>\u54cd\u5e94\u65f6\u95f4<\/th>\n<\/tr>\n<tr>\n<td>TCP\u8fde\u63a5<\/td>\n<td>\u5b8c\u6574\u8fde\u63a5\u6d4b\u8bd5<\/td>\n<td>\u6807\u51c6<\/td>\n<\/tr>\n<tr>\n<td>SYN\u626b\u63cf<\/td>\n<td>\u9690\u853d\u6d4b\u8bd5<\/td>\n<td>\u5feb\u901f<\/td>\n<\/tr>\n<tr>\n<td>UDP\u626b\u63cf<\/td>\n<td>\u534f\u8bae\u5206\u6790<\/td>\n<td>\u53ef\u53d8<\/td>\n<\/tr>\n<\/table>\n<div class=\"tool-implementation\">\n<h4>\u547d\u4ee4\u884c\u5de5\u5177\uff1a<\/h4>\n<ul>\n<li>\u57fa\u672c\u547d\u4ee4\n<ul>\n<li>netstat -an<\/li>\n<li>telnet [host] [port]<\/li>\n<li>nmap [options] [target]<\/li>\n<\/ul>\n<\/li>\n<li>\u9ad8\u7ea7\u5206\u6790\n<ul>\n<li>\u670d\u52a1\u68c0\u6d4b<\/li>\n<li>\u7248\u672c\u626b\u63cf<\/li>\n<li>\u811a\u672c\u6267\u884c<\/li>\n<\/ul>\n<\/li>\n<\/ul><\/div><\/div>\n<h2><strong>\u7aef\u53e3\u5206\u6790\u6700\u4f73\u5b9e\u8df5<\/strong><\/h2>\n<div 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class=\"issue-matrix\">\n<tr>\n<th>\u95ee\u9898\u7c7b\u578b<\/th>\n<th>\u5e38\u89c1\u539f\u56e0<\/th>\n<th>\u89e3\u51b3\u65b9\u6848<\/th>\n<\/tr>\n<tr>\n<td>\u8fde\u63a5\u5931\u8d25<\/td>\n<td>\u914d\u7f6e\u95ee\u9898<\/td>\n<td>\u53c2\u6570\u68c0\u67e5<\/td>\n<\/tr>\n<tr>\n<td>\u6027\u80fd\u5ef6\u8fdf<\/td>\n<td>\u8d44\u6e90\u9650\u5236<\/td>\n<td>\u4f18\u5316<\/td>\n<\/tr>\n<tr>\n<td>\u8bbf\u95ee\u62d2\u7edd<\/td>\n<td>\u89c4\u5219\u51b2\u7a81<\/td>\n<td>\u7b56\u7565\u8c03\u6574<\/td>\n<\/tr>\n<\/table>\n<div class=\"resolution-steps\">\n<h4>\u95ee\u9898\u89e3\u51b3\u534f\u8bae\uff1a<\/h4>\n<ol>\n<li>\u95ee\u9898\u8bc6\u522b\n<ul>\n<li>\u75c7\u72b6\u5206\u6790<\/li>\n<li>\u5f71\u54cd\u8bc4\u4f30<\/li>\n<li>\u8303\u56f4\u754c\u5b9a<\/li>\n<\/ul>\n<\/li>\n<li>\u8bca\u65ad\u8fc7\u7a0b\n<ul>\n<li>\u65e5\u5fd7\u5206\u6790<\/li>\n<li>\u8fde\u63a5\u6d4b\u8bd5<\/li>\n<li>\u914d\u7f6e\u5ba1\u67e5<\/li>\n<\/ul>\n<\/li>\n<li>\u89e3\u51b3\u65b9\u6848\u5b9e\u65bd\n<ul>\n<li>\u53d8\u66f4\u7ba1\u7406<\/li>\n<li>\u6027\u80fd\u9a8c\u8bc1<\/li>\n<li>\u6587\u6863\u66f4\u65b0<\/li>\n<\/ul>\n<\/li>\n<\/ol><\/div><\/div>\n<\/div>\n<h2><strong>\u7ef4\u62a4\u548c\u76d1\u63a7\u5b9e\u8df5<\/strong><\/h2>\n<div class=\"maintenance-section\">\n<p>\u5728\u4e13\u4e1a\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u4e2d\uff0c\u5b9a\u671f\u7ef4\u62a4\u7ed3\u5408\u4e3b\u52a8\u76d1\u63a7\u786e\u4fdd\u6700\u4f73\u7aef\u53e3\u6027\u80fd\u548c\u7f51\u7edc\u53ef\u9760\u6027\u3002<\/p>\n<div class=\"monitoring-framework\">\n<h4>\u76d1\u63a7\u6307\u5357\uff1a<\/h4>\n<table class=\"monitoring-matrix\">\n<tr>\n<th>\u6d3b\u52a8<\/th>\n<th>\u9891\u7387<\/th>\n<th>\u5f71\u54cd\u7ea7\u522b<\/th>\n<\/tr>\n<tr>\n<td>\u72b6\u6001\u68c0\u67e5<\/td>\n<td>\u6bcf\u5c0f\u65f6<\/td>\n<td>\u5173\u952e<\/td>\n<\/tr>\n<tr>\n<td>\u6027\u80fd\u5ba1\u67e5<\/td>\n<td>\u6bcf\u5929<\/td>\n<td>\u9ad8<\/td>\n<\/tr>\n<tr>\n<td>\u914d\u7f6e\u5ba1\u6838<\/td>\n<td>\u6bcf\u5468<\/td>\n<td>\u5fc5\u8981<\/td>\n<\/tr>\n<\/table>\n<div class=\"maintenance-checklist\">\n<h4>\u5e38\u89c4\u4efb\u52a1\uff1a<\/h4>\n<ul>\n<li>\u7cfb\u7edf\u5ba1\u67e5\n<ul>\n<li>\u7aef\u53e3\u72b6\u6001\u9a8c\u8bc1<\/li>\n<li>\u6d41\u91cf\u6a21\u5f0f\u5206\u6790<\/li>\n<li>\u8d44\u6e90\u4f7f\u7528\u68c0\u67e5<\/li>\n<\/ul>\n<\/li>\n<li>\u6587\u6863\u8bb0\u5f55\n<ul>\n<li>\u914d\u7f6e\u53d8\u66f4<\/li>\n<li>\u6027\u80fd\u6307\u6807<\/li>\n<li>\u4e8b\u4ef6\u62a5\u544a<\/li>\n<\/ul>\n<\/li>\n<\/ul><\/div><\/div>\n<h2><strong>\u672a\u6765\u8003\u8651\u548c\u5efa\u8bae<\/strong><\/h2>\n<div class=\"recommendations-section\">\n<p>\u9002\u5e94\u4e0d\u65ad\u53d1\u5c55\u7684\u7f51\u7edc\u9700\u6c42\u9700\u8981\u524d\u77bb\u6027\u65b9\u6cd5\u548c\u7075\u6d3b\u7684\u7ba1\u7406\u7b56\u7565\u3002<\/p>\n<div class=\"planning-framework\">\n<table 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