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class=\"wp-block-heading\">\u7aef\u53e3\u53f7\u5212\u5206\u8303\u56f4<\/h3>\n\n\n\n<p>\u7aef\u53e3\u53f7\u7684\u957f\u5ea6\u662f16\u4f4d\uff0c\u56e0\u6b64\u7aef\u53e3\u53f7\u7684\u8303\u56f4\u662f0 ~ 65535\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>0~1023\uff1a\u77e5\u540d\u7aef\u53e3\u53f7\u3002\u6bd4\u5982HTTP\u3001FTP\u3001SSH\u7b49\u8fd9\u4e9b\u5e7f\u4e3a\u4f7f\u7528\u7684\u5e94\u7528\u5c42\u534f\u8bae\uff0c\u5b83\u4eec\u7684\u7aef\u53e3\u53f7\u90fd\u662f\u56fa\u5b9a\u7684\u3002<\/li>\n\n\n\n<li>1024~65535\uff1a\u64cd\u4f5c\u7cfb\u7edf\u52a8\u6001\u5206\u914d\u7684\u7aef\u53e3\u53f7\u3002\u5ba2\u6237\u7aef\u7a0b\u5e8f\u7684\u7aef\u53e3\u53f7\u5c31\u662f\u7531\u64cd\u4f5c\u7cfb\u7edf\u4ece\u8fd9\u4e2a\u8303\u56f4\u5206\u914d\u7684\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u8ba4\u8bc6\u77e5\u540d\u7aef\u53e3\u53f7<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5e38\u89c1\u7684\u77e5\u540d\u7aef\u53e3\u53f7<\/p>\n<\/blockquote>\n\n\n\n<p>\u6709\u4e9b\u670d\u52a1\u5668\u662f\u975e\u5e38\u5e38\u7528\u7684\uff0c\u8fd9\u4e9b\u670d\u52a1\u5668\u7684\u7aef\u53e3\u53f7\u4e00\u822c\u90fd\u662f\u56fa\u5b9a\u7684\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ssh\u670d\u52a1\u5668\uff0c\u4f7f\u752822\u7aef\u53e3\u3002<\/li>\n\n\n\n<li>ftp\u670d\u52a1\u5668\uff0c\u4f7f\u752821\u7aef\u53e3\u3002<\/li>\n\n\n\n<li>telnet\u670d\u52a1\u5668\uff0c\u4f7f\u752823\u7aef\u53e3\u3002<\/li>\n\n\n\n<li>http\u670d\u52a1\u5668\uff0c\u4f7f\u752880\u7aef\u53e3\u3002<\/li>\n\n\n\n<li>https\u670d\u52a1\u5668\uff0c\u4f7f\u7528443\u7aef\u53e3\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u67e5\u770b\u77e5\u540d\u7aef\u53e3\u53f7<\/p>\n<\/blockquote>\n\n\n\n<p>\u6211\u4eec\u53ef\u4ee5\u67e5\u770b<code>\/etc\/services<\/code>\u6587\u4ef6\uff0c\u8be5\u6587\u4ef6\u662f\u8bb0\u5f55\u7f51\u7edc\u670d\u52a1\u540d\u548c\u5b83\u4eec\u5bf9\u5e94\u4f7f\u7528\u7684\u7aef\u53e3\u53f7\u53ca\u534f\u8bae\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/992a900f51dd49bb85f5af171a1c45c2.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/992a900f51dd49bb85f5af171a1c45c2.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p><strong>\u8bf4\u660e\u4e00\u4e0b\uff1a<\/strong> \u6587\u4ef6\u4e2d\u7684\u6bcf\u4e00\u884c\u5bf9\u5e94\u4e00\u79cd\u670d\u52a1\uff0c\u5b83\u67094\u4e2a\u5b57\u6bb5\u7ec4\u6210\uff0c\u6bcf\u4e2a\u5b57\u6bb5\u4e4b\u95f4\u7528TAB\u6216\u7a7a\u683c\u5206\u9694\uff0c\u5206\u522b\u6807\u8bc6\u201c\u670d\u52a1\u540d\u79f0\u201d\u3001\u201c\u4f7f\u7528\u7aef\u53e3\u201d\u3001\u201c\u534f\u8bae\u540d\u79f0\u201d\u4ee5\u53ca\u201c\u522b\u540d\u201d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e24\u4e2a\u95ee\u9898<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4e00\u4e2a\u7aef\u53e3\u53f7\u662f\u5426\u53ef\u4ee5\u88ab\u591a\u4e2a\u8fdb\u7a0b\u7ed1\u5b9a\uff1f<\/p>\n<\/blockquote>\n\n\n\n<p>\u4e00\u4e2a\u7aef\u53e3\u53f7\u7edd\u5bf9\u4e0d\u80fd\u88ab\u591a\u4e2a\u8fdb\u7a0b\u7ed1\u5b9a\uff0c\u56e0\u4e3a\u7aef\u53e3\u53f7\u7684\u4f5c\u7528\u5c31\u662f\u552f\u4e00\u6807\u8bc6\u4e00\u4e2a\u8fdb\u7a0b\uff0c\u5982\u679c\u7ed1\u5b9a\u4e00\u4e2a\u5df2\u7ecf\u88ab\u7ed1\u5b9a\u7684\u7aef\u53e3\u53f7\uff0c\u5c31\u4f1a\u51fa\u73b0\u7ed1\u5b9a\u5931\u8d25\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u4e00\u4e2a\u8fdb\u7a0b\u662f\u5426\u53ef\u4ee5\u7ed1\u5b9a\u591a\u4e2a\u7aef\u53e3\u53f7\uff1f<\/p>\n<\/blockquote>\n\n\n\n<p>\u4e00\u4e2a\u8fdb\u7a0b\u662f\u53ef\u4ee5\u7ed1\u5b9a\u591a\u4e2a\u7aef\u53e3\u53f7\u7684\uff0c\u8fd9\u4e0e\u201c\u7aef\u53e3\u53f7\u5fc5\u987b\u552f\u4e00\u6807\u8bc6\u4e00\u4e2a\u8fdb\u7a0b\u201d\u662f\u4e0d\u51b2\u7a81\u7684\uff0c\u53ea\u4e0d\u8fc7\u73b0\u5728\u8fd9\u591a\u4e2a\u7aef\u53e3\u552f\u4e00\u6807\u8bc6\u7684\u662f\u540c\u4e00\u4e2a\u8fdb\u7a0b\u7f62\u4e86\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u9650\u5236\u7684\u662f\u4ece\u7aef\u53e3\u53f7\u5230\u8fdb\u7a0b\u7684\u552f\u4e00\u6027\uff0c\u800c\u6ca1\u6709\u8981\u6c42\u4ece\u8fdb\u7a0b\u5230\u7aef\u53e3\u53f7\u4e5f\u5fc5\u987b\u6ee1\u8db3\u552f\u4e00\u6027\uff0c\u56e0\u6b64\u4e00\u4e2a\u8fdb\u7a0b\u662f\u53ef\u4ee5\u7ed1\u5b9a\u591a\u4e2a\u7aef\u53e3\u53f7\u7684\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">netstat\u548ciostat<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>netstat\u547d\u4ee4<\/p>\n<\/blockquote>\n\n\n\n<p><code>netstat<\/code>\u662f\u4e00\u4e2a\u7528\u6765\u67e5\u770b\u7f51\u7edc\u72b6\u6001\u7684\u91cd\u8981\u5de5\u5177\u3002<\/p>\n\n\n\n<p>\u5176\u5e38\u89c1\u7684\u9009\u9879\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>n\uff1a\u62d2\u7edd\u663e\u793a\u522b\u540d\uff0c\u80fd\u663e\u793a\u6570\u5b57\u7684\u5168\u90e8\u8f6c\u6362\u6210\u6570\u5b57\u3002<\/li>\n\n\n\n<li>l\uff1a\u4ec5\u5217\u51fa\u5904\u4e8eLISTEN\uff08\u76d1\u542c\uff09\u72b6\u6001\u7684\u670d\u52a1\u3002<\/li>\n\n\n\n<li>p\uff1a\u663e\u793a\u5efa\u7acb\u76f8\u5173\u94fe\u63a5\u7684\u7a0b\u5e8f\u540d\u3002<\/li>\n\n\n\n<li>t(tcp)\uff1a\u4ec5\u663e\u793atcp\u76f8\u5173\u7684\u9009\u9879\u3002<\/li>\n\n\n\n<li>u(udp)\uff1a\u4ec5\u663e\u793audp\u76f8\u5173\u7684\u9009\u9879\u3002<\/li>\n\n\n\n<li>a(all)\uff1a\u663e\u793a\u6240\u6709\u7684\u9009\u9879\uff0c\u9ed8\u8ba4\u4e0d\u663e\u793aLISTEN\u76f8\u5173\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u67e5\u770bTCP\u76f8\u5173\u7684\u7f51\u7edc\u4fe1\u606f\u65f6\uff0c\u4e00\u822c\u9009\u62e9\u4f7f\u7528<code>nltp<\/code>\u7ec4\u5408\u9009\u9879\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/73c98d5ce9bc4b98b40e178729320015.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/73c98d5ce9bc4b98b40e178729320015.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u800c\u67e5\u770bUCP\u76f8\u5173\u7684\u7f51\u7edc\u4fe1\u606f\u65f6\uff0c\u4e00\u822c\u9009\u62e9\u4f7f\u7528<code>nlup<\/code>\u7ec4\u5408\u9009\u9879\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/5c7f02d9f4704566b1c9bf55a83e151c.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/5c7f02d9f4704566b1c9bf55a83e151c.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>\u5982\u679c\u60f3\u67e5\u770bLISTEN\u72b6\u6001\u4ee5\u5916\u7684\u8fde\u63a5\u4fe1\u606f\uff0c\u53ef\u4ee5\u53bb\u6389<code>l<\/code>\u9009\u9879\uff0c\u6b64\u65f6\u5c31\u4f1a\u5c06\u5904\u4e8e\u5176\u4ed6\u72b6\u6001\u7684\u8fde\u63a5\u4fe1\u606f\u663e\u793a\u51fa\u6765\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/7bd9709e0f5f46b48734165ba92d32d7.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/7bd9709e0f5f46b48734165ba92d32d7.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>iostat\u547d\u4ee4<\/p>\n<\/blockquote>\n\n\n\n<p><code>iostat<\/code>\u4e3b\u8981\u7528\u4e8e\u8f93\u51fa\u78c1\u76d8IO\u548cCPU\u7684\u7edf\u8ba1\u4fe1\u606f\u3002<\/p>\n\n\n\n<p>\u5176\u5e38\u89c1\u9009\u9879\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>c\uff1a\u663e\u793aCPU\u7684\u4f7f\u7528\u60c5\u51b5\u3002<\/li>\n\n\n\n<li>d\uff1a\u663e\u793a\u78c1\u76d8\u7684\u4f7f\u7528\u60c5\u51b5\u3002<\/li>\n\n\n\n<li>N\uff1a\u663e\u793a\u78c1\u76d8\u5217\u9635\uff08LVM\uff09\u4fe1\u606f\u3002<\/li>\n\n\n\n<li>n\uff1a\u663e\u793aNFS\u4f7f\u7528\u60c5\u51b5\u3002<\/li>\n\n\n\n<li>k\uff1a\u4ee5KB\u4e3a\u5355\u4f4d\u663e\u793a\u3002<\/li>\n\n\n\n<li>m\uff1a\u4ee5M\u4e3a\u5355\u4f4d\u663e\u793a\u3002<\/li>\n\n\n\n<li>t\uff1a\u62a5\u544a\u6bcf\u79d2\u5411\u7ec8\u7aef\u8bfb\u53d6\u548c\u5199\u5165\u7684\u5b57\u7b26\u6570\u548cCPU\u7684\u4fe1\u606f\u3002<\/li>\n\n\n\n<li>V\uff1a\u663e\u793a\u7248\u672c\u4fe1\u606f\u3002<\/li>\n\n\n\n<li>x\uff1a\u663e\u793a\u8be6\u7ec6\u4fe1\u606f\u3002<\/li>\n\n\n\n<li>p\uff1a\u663e\u793a\u78c1\u76d8\u5206\u533a\u7684\u60c5\u51b5\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6bd4\u5982\u6211\u4eec\u8981\u67e5\u770b\u78c1\u76d8IO\u548cCPU\u7684\u8be6\u7ec6\u4fe1\u606f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/686cbaf81ab2442a97f7ee611e01247a.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/686cbaf81ab2442a97f7ee611e01247a.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p>CPU\u5c5e\u6027\u503c\u8bf4\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>%user\uff1aCPU\u5904\u5728\u7528\u6237\u6a21\u5f0f\u4e0b\u7684\u65f6\u95f4\u767e\u5206\u6bd4\u3002<\/li>\n\n\n\n<li>%nice\uff1aCPU\u5904\u5728\u5e26NICE\u503c\u7684\u7528\u6237\u6a21\u5f0f\u4e0b\u7684\u65f6\u95f4\u767e\u5206\u6bd4\u3002<\/li>\n\n\n\n<li>%system\uff1aCPU\u5904\u5728\u7cfb\u7edf\u6a21\u5f0f\u4e0b\u7684\u65f6\u95f4\u767e\u5206\u6bd4\u3002<\/li>\n\n\n\n<li>%iowait\uff1aCPU\u7b49\u5f85\u8f93\u5165\u8f93\u51fa\u5b8c\u6210\u65f6\u95f4\u7684\u767e\u5206\u6bd4\u3002<\/li>\n\n\n\n<li>%steal\uff1a\u7ba1\u7406\u7a0b\u5e8f\u7ef4\u62a4\u53e6\u4e00\u4e2a\u865a\u62df\u5904\u7406\u5668\u65f6\uff0c\u865a\u62dfCPU\u7684\u65e0\u610f\u8bc6\u7b49\u5f85\u65f6\u95f4\u767e\u5206\u6bd4\u3002<\/li>\n\n\n\n<li>%idle\uff1aCPU\u7a7a\u95f2\u65f6\u95f4\u767e\u5206\u6bd4\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">pidof<\/h3>\n\n\n\n<p><code>pidof<\/code>\u547d\u4ee4\u53ef\u4ee5\u901a\u8fc7\u8fdb\u7a0b\u540d\uff0c\u67e5\u770b\u8fdb\u7a0bid\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u6211\u4eec\u7528<code>pidof<\/code>\u547d\u4ee4\u67e5\u770b\u6211\u4eec\u81ea\u5df1\u7f16\u5199\u7684\u4e00\u4e2a\u6b7b\u5faa\u73af\u8fdb\u7a0b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/28a4e70e27cd44cbb005d28417010b2e.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/28a4e70e27cd44cbb005d28417010b2e.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<p><code>pidof<\/code>\u547d\u4ee4\u53ef\u4ee5\u914d\u5408<code>kill<\/code>\u547d\u4ee4\u5feb\u901f\u6740\u6b7b\u4e00\u4e2a\u8fdb\u7a0b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/079987c77b8c48518df0c03bfc3360b7.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/079987c77b8c48518df0c03bfc3360b7.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">UDP\u534f\u8bae<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">UDP\u534f\u8bae\u683c\u5f0f<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>UDP\u7684\u4f4d\u7f6e<\/p>\n<\/blockquote>\n\n\n\n<p>\u7f51\u7edc\u5957\u63a5\u5b57\u7f16\u7a0b\u65f6\u7528\u5230\u7684\u5404\u79cd\u63a5\u53e3\uff0c\u662f\u4f4d\u4e8e\u5e94\u7528\u5c42\u548c\u4f20\u8f93\u5c42\u4e4b\u95f4\u7684\u4e00\u5c42\u7cfb\u7edf\u8c03\u7528\u63a5\u53e3\uff0c\u8fd9\u4e9b\u63a5\u53e3\u662f\u7cfb\u7edf\u63d0\u4f9b\u7684\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8fd9\u4e9b\u63a5\u53e3\u642d\u5efa\u4e0a\u5c42\u5e94\u7528\uff0c\u6bd4\u5982HTTP\u3002\u6211\u4eec\u7ecf\u5e38\u8bf4HTTP\u662f\u57fa\u4e8eTCP\u7684\uff0c\u5b9e\u9645\u5c31\u662f\u56e0\u4e3aHTTP\u5728TCP\u5957\u63a5\u5b57\u7f16\u7a0b\u4e0a\u642d\u5efa\u7684\u3002<\/p>\n\n\n\n<p>\u800csocket\u63a5\u53e3\u5f80\u4e0b\u7684\u4f20\u8f93\u5c42\u5b9e\u9645\u5c31\u662f\u7531\u64cd\u4f5c\u7cfb\u7edf\u7ba1\u7406\u7684\uff0c\u56e0\u6b64UDP\u662f\u5c5e\u4e8e\u5185\u6838\u5f53\u4e2d\u7684\uff0c\u662f\u64cd\u4f5c\u7cfb\u7edf\u672c\u8eab\u534f\u8bae\u6808\u81ea\u5e26\u7684\uff0c\u5176\u4ee3\u7801\u4e0d\u662f\u7531\u4e0a\u5c42\u7528\u6237\u7f16\u5199\u7684\uff0cUDP\u7684\u6240\u6709\u529f\u80fd\u90fd\u662f\u7531\u64cd\u4f5c\u7cfb\u7edf\u5b8c\u6210\uff0c\u56e0\u6b64\u7f51\u7edc\u4e5f\u662f\u64cd\u4f5c\u7cfb\u7edf\u7684\u4e00\u90e8\u5206\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>UDP\u534f\u8bae\u683c\u5f0f<\/p>\n<\/blockquote>\n\n\n\n<p>UDP\u534f\u8bae\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/cdn.codergodv.xyz\/d78ead6367274d3696fbdc0ef0b24421.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/cdn.codergodv.xyz\/d78ead6367274d3696fbdc0ef0b24421.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"img\"\/><\/div><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>16\u4f4d\u6e90\u7aef\u53e3\u53f7\uff1a\u8868\u793a\u6570\u636e\u4ece\u54ea\u91cc\u6765\u3002<\/li>\n\n\n\n<li>16\u4f4d\u76ee\u7684\u7aef\u53e3\u53f7\uff1a\u8868\u793a\u6570\u636e\u8981\u5230\u54ea\u91cc\u53bb\u3002<\/li>\n\n\n\n<li>16\u4f4dUDP\u957f\u5ea6\uff1a\u8868\u793a\u6574\u4e2a\u6570\u636e\u62a5\uff08UDP\u9996\u90e8+UDP\u6570\u636e\uff09\u7684\u957f\u5ea6\u3002<\/li>\n\n\n\n<li>16\u4f4dUDP\u68c0\u9a8c\u548c\uff1a\u5982\u679cUDP\u62a5\u6587\u7684\u68c0\u9a8c\u548c\u51fa\u9519\uff0c\u5c31\u4f1a\u76f4\u63a5\u5c06\u62a5\u6587\u4e22\u5f03\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6211\u4eec\u5728\u5e94\u7528\u5c42\u770b\u5230\u7684\u7aef\u53e3\u53f7\u5927\u90e8\u5206\u90fd\u662f16\u4f4d\u7684\uff0c\u5176\u6839\u672c\u539f\u56e0\u5c31\u662f\u56e0\u4e3a\u4f20\u8f93\u5c42\u534f\u8bae\u5f53\u4e2d\u7684\u7aef\u53e3\u53f7\u5c31\u662f16\u4f4d\u7684\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>UDP\u5982\u4f55\u5c06\u62a5\u5934\u4e0e\u6709\u6548\u8f7d\u8377\u8fdb\u884c\u5206\u79bb\uff1f<\/p>\n<\/blockquote>\n\n\n\n<p>UDP\u7684\u62a5\u5934\u5f53\u4e2d\u53ea\u5305\u542b\u56db\u4e2a\u5b57\u6bb5\uff0c\u6bcf\u4e2a\u5b57\u6bb5\u7684\u957f\u5ea6\u90fd\u662f16\u4f4d\uff0c\u603b\u5171\u516b\u5b57\u8282\u3002\u56e0\u6b64UDP\u91c7\u7528\u7684\u5b9e\u9645\u4e0a\u662f\u4e00\u79cd\u5b9a\u957f\u62a5\u5934\uff0cUDP\u5728\u8bfb\u53d6\u62a5\u6587\u65f6\u8bfb\u53d6\u5b8c\u524d8\u4e2a\u5b57\u8282\u540e\u5269\u4e0b\u7684\u5c31\u90fd\u662f\u6709\u6548\u8f7d\u8377\u4e86\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>UDP\u5982\u4f55\u51b3\u5b9a\u5c06\u6709\u6548\u8f7d\u8377\u4ea4\u4ed8\u7ed9\u4e0a\u5c42\u7684\u54ea\u4e00\u4e2a\u534f\u8bae\uff1f<\/p>\n<\/blockquote>\n\n\n\n<p>UDP\u4e0a\u5c42\u4e5f\u6709\u5f88\u591a\u5e94\u7528\u5c42\u534f\u8bae\uff0c\u56e0\u6b64UDP\u5fc5\u987b\u60f3\u529e\u6cd5\u5c06\u6709\u6548\u8f7d\u8377\u4ea4\u7ed9\u5bf9\u5e94\u7684\u4e0a\u5c42\u534f\u8bae\uff0c\u4e5f\u5c31\u662f\u4ea4\u7ed9\u5e94\u7528\u5c42\u5bf9\u5e94\u7684\u8fdb\u7a0b\u3002<\/p>\n\n\n\n<p>\u5e94\u7528\u5c42\u7684\u6bcf\u4e00\u4e2a\u7f51\u7edc\u8fdb\u7a0b\u90fd\u4f1a\u7ed1\u5b9a\u4e00\u4e2a\u7aef\u53e3\u53f7\uff0c\u670d\u52a1\u7aef\u8fdb\u7a0b\u5fc5\u987b\u663e\u793a\u7ed1\u5b9a\u4e00\u4e2a\u7aef\u53e3\u53f7\uff0c\u5ba2\u6237\u7aef\u8fdb\u7a0b\u5219\u662f\u7531\u7cfb\u7edf\u52a8\u6001\u7ed1\u5b9a\u7684\u4e00\u4e2a\u7aef\u53e3\u53f7\u3002UDP\u5c31\u662f\u901a\u8fc7\u62a5\u5934\u5f53\u4e2d\u7684\u76ee\u7684\u7aef\u53e3\u53f7\u6765\u627e\u5230\u5bf9\u5e94\u7684\u5e94\u7528\u5c42\u8fdb\u7a0b\u7684\u3002<\/p>\n\n\n\n<p><strong>\u8bf4\u660e\u4e00\u4e0b\uff1a<\/strong> \u5185\u6838\u4e2d\u7528\u54c8\u5e0c\u7684\u65b9\u5f0f\u7ef4\u62a4\u4e86\u7aef\u53e3\u53f7\u4e0e\u8fdb\u7a0bID\u4e4b\u95f4\u7684\u6620\u5c04\u5173\u7cfb\uff0c\u56e0\u6b64\u4f20\u8f93\u5c42\u53ef\u4ee5\u901a\u8fc7\u7aef\u53e3\u53f7\u5f97\u5230\u5bf9\u5e94\u7684\u8fdb\u7a0bID\uff0c\u8fdb\u800c\u627e\u5230\u5bf9\u5e94\u7684\u5e94\u7528\u5c42\u8fdb\u7a0b\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5982\u4f55\u7406\u89e3\u62a5\u5934\uff1f<\/p>\n<\/blockquote>\n\n\n\n<p>\u64cd\u4f5c\u7cfb\u7edf\u662fC\u8bed\u8a00\u5199\u7684\uff0c\u800cUDP\u534f\u8bae\u53c8\u662f\u5c5e\u4e8e\u5185\u6838\u534f\u8bae\u6808\u7684\uff0c\u56e0\u6b64UDP\u534f\u8bae\u4e5f\u4e00\u5b9a\u662f\u7528C\u8bed\u8a00\u7f16\u5199\u7684\uff0cUDP\u62a5\u5934\u5b9e\u9645\u5c31\u662f\u4e00\u4e2a\u4f4d\u6bb5\u7c7b\u578b\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff1a<img decoding=\"async\" src=\"https:\/\/cdn.codergodv.xyz\/9823e75222b24f388727c054aa439a2b.png\" 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