{"id":504,"date":"2025-03-20T15:07:58","date_gmt":"2025-03-20T15:07:58","guid":{"rendered":"https:\/\/linuxjk.cn\/?p=504"},"modified":"2025-03-24T23:27:09","modified_gmt":"2025-03-24T23:27:09","slug":"%e7%bd%91%e7%bb%9c%e8%bf%9b%e9%98%b6%e4%b8%8e%e6%9e%b6%e6%9e%84%ef%bc%88day-28%ef%bc%89","status":"publish","type":"post","link":"https:\/\/linuxjk.cn\/?p=504","title":{"rendered":"\u7f51\u7edc\u8fdb\u9636\u4e0e\u67b6\u6784\uff08day 28\uff09"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"504\" class=\"elementor elementor-504\">\n\t\t\t\t<div class=\"elementor-element elementor-element-cd3d9e7 e-flex e-con-boxed e-con e-parent\" data-id=\"cd3d9e7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6b6d449 elementor-widget elementor-widget-text-editor\" data-id=\"6b6d449\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/linuxjk.cn\/?p=504\/#TCP%E4%B8%89%E6%AC%A1%E6%8F%A1%E6%89%8B%E4%B8%8E%E5%9B%9B%E6%AC%A1%E6%8C%A5%E6%89%8B%E8%BF%87%E7%A8%8B\" >TCP\u4e09\u6b21\u63e1\u624b\u4e0e\u56db\u6b21\u6325\u624b\u8fc7\u7a0b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/linuxjk.cn\/?p=504\/#TCP%E4%B8%89%E6%AC%A1%E6%8F%A1%E6%89%8B\" >TCP\u4e09\u6b21\u63e1\u624b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/linuxjk.cn\/?p=504\/#TCP%E5%9B%9B%E6%AC%A1%E6%8C%A5%E6%89%8B\" >TCP\u56db\u6b21\u6325\u624b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/linuxjk.cn\/?p=504\/#%E5%B8%B8%E8%A7%81TCP%E4%B8%AD%E7%9A%84%E6%A0%87%E8%AE%B0%E4%BD%8D\" >\u5e38\u89c1TCP\u4e2d\u7684\u6807\u8bb0\u4f4d<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/linuxjk.cn\/?p=504\/#TCPUDP%E5%8C%BA%E5%88%AB\" >TCP\/UDP\u533a\u522b<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/linuxjk.cn\/?p=504\/#TCPUDP%E6%95%B0%E6%8D%AE%E5%8C%85%E7%BB%93%E6%9E%84\" >TCP\/UDP\u6570\u636e\u5305\u7ed3\u6784<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/linuxjk.cn\/?p=504\/#TCP%E7%9A%8411%E7%A7%8D%E7%8A%B6%E6%80%81%E8%BD%AC%E5%8C%96\" >TCP\u768411\u79cd\u72b6\u6001\u8f6c\u5316<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/linuxjk.cn\/?p=504\/#%E4%B8%89%E6%AC%A1%E6%8F%A1%E6%89%8B%E7%9A%84%E7%8A%B6%E6%80%81\" >\u4e09\u6b21\u63e1\u624b\u7684\u72b6\u6001<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/linuxjk.cn\/?p=504\/#%E5%9B%9B%E6%AC%A1%E6%8C%A5%E6%89%8B%E7%9A%84%E7%8A%B6%E6%80%81\" >\u56db\u6b21\u6325\u624b\u7684\u72b6\u6001<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/linuxjk.cn\/?p=504\/#%E7%AC%AC%E5%8D%81%E4%B8%80%E7%A7%8D%E7%8A%B6%E6%80%81%E8%A1%A5%E5%85%85\" >\u7b2c\u5341\u4e00\u79cd\u72b6\u6001\u8865\u5145<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/linuxjk.cn\/?p=504\/#tcp11%E7%A7%8D%E7%8A%B6%E6%80%81%E5%B0%8F%E7%BB%93\" >tcp11\u79cd\u72b6\u6001\u5c0f\u7ed3<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"TCP%E4%B8%89%E6%AC%A1%E6%8F%A1%E6%89%8B%E4%B8%8E%E5%9B%9B%E6%AC%A1%E6%8C%A5%E6%89%8B%E8%BF%87%E7%A8%8B\"><\/span><strong>TCP\u4e09\u6b21\u63e1\u624b\u4e0e\u56db\u6b21\u6325\u624b\u8fc7\u7a0b<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h1>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5b0699e e-flex e-con-boxed e-con e-parent\" data-id=\"5b0699e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-873aa8e elementor-widget elementor-widget-heading\" data-id=\"873aa8e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"TCP%E4%B8%89%E6%AC%A1%E6%8F%A1%E6%89%8B\"><\/span>TCP\u4e09\u6b21\u63e1\u624b<span class=\"ez-toc-section-end\"><\/span><\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f6bb305 elementor-widget elementor-widget-text-editor\" data-id=\"f6bb305\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: left;\"><strong>tcp\u4e4b\u6240\u4ee5\u79f0\u4e3a\u7a33\u5b9a\uff0c\u53ef\u9760\u7684\u3002\u56e0\u4e3a\u5efa\u7acb\u8fde\u63a5\u7684\u65f6\u5019\u8981\u7ecf\u8fc7\u4e09\u6b21\u63e1\u624b<\/strong><br \/><strong>tcp\u4e09\u6b21\u63e1\u624b\u76ee\u6807\uff1a\u4e0e\u7aef\u53e3\u5efa\u7acb\u8fde\u63a5<\/strong><br \/><strong>udp\u6ca1\u6709\u4e09\u6b21\u63e1\u624b\u5efa\u7acb\u8fde\u63a5\u7684\u8fc7\u7a0b\uff0c\u662f\u76f4\u63a5\u8fde\u63a5<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-708dddd elementor-widget elementor-widget-image\" data-id=\"708dddd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1288\" height=\"1193\" src=\"https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/tcp\u4e09\u6b21\u63e1\u624b.png\" class=\"attachment-full size-full wp-image-514\" alt=\"\" srcset=\"https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/tcp\u4e09\u6b21\u63e1\u624b.png 1288w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/tcp\u4e09\u6b21\u63e1\u624b-300x278.png 300w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/tcp\u4e09\u6b21\u63e1\u624b-1024x948.png 1024w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/tcp\u4e09\u6b21\u63e1\u624b-768x711.png 768w\" sizes=\"(max-width: 1288px) 100vw, 1288px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c5de0f2 elementor-widget elementor-widget-text-editor\" data-id=\"c5de0f2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>\u2460\u5ba2\u6237\u7aef\u53d1\u51fa\u5efa\u7acb\u8fde\u63a5\u8bf7\u6c42\uff1aSYN\u5efa\u7acb\u8fde\u63a5\u8bf7\u6c42\uff0c\u53d1\u51faseq\u7684\u968f\u673a\u6570\uff08\u5047\u8bbeseq=100\uff09<\/strong><br \/><strong>\u2461\u670d\u52a1\u7aef\u53e3\u6536\u5230\u5ba2\u6237\u7aef\u8bf7\u6c42\uff1aACK\uff08\u786e\u8ba4\uff09\uff0cSYN\uff08\u4e0e\u5ba2\u6237\u7aef\u5efa\u7acb\u8fde\u63a5\uff09\uff0c\u53d1\u51faack=seq+1\uff08101\uff09\uff0cseq\u968f\u673a666<\/strong><br \/><strong>\u2462\u5ba2\u6237\u7aef\u6536\u5230\u670d\u52a1\u7aef\u8bf7\u6c42\u4e0e\u786e\u8ba4\uff1a\u53d1\u51faack\u786e\u8ba4\u5efa\u7acb\u8fde\u63a5\uff0c\u53d1\u51faack=seq+1\uff08667\uff09\uff0cseq=ack\uff08101\uff09<\/strong><\/p><p style=\"text-align: center;\"><strong>\u4ee5\u4e0a\u6570\u636e\u603b\u7ed3\uff1aseq=\u4e0a\u4e00\u6b65\u7684ack\uff0cack=\u4e0a\u4e00\u6b65\u7684seq+1<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ac986a5 elementor-widget elementor-widget-heading\" data-id=\"ac986a5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"TCP%E5%9B%9B%E6%AC%A1%E6%8C%A5%E6%89%8B\"><\/span>TCP\u56db\u6b21\u6325\u624b<span class=\"ez-toc-section-end\"><\/span><\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8646021 elementor-widget elementor-widget-text-editor\" data-id=\"8646021\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\u56db\u6b21\u6325\u624b\u76ee\u7684\uff1a\u65ad\u5f00\u8fde\u63a5\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7cf428a elementor-widget elementor-widget-image\" data-id=\"7cf428a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1310\" height=\"1279\" src=\"https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCP\u56db\u6b21\u6325\u624b.png\" class=\"attachment-full size-full wp-image-515\" alt=\"\" srcset=\"https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCP\u56db\u6b21\u6325\u624b.png 1310w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCP\u56db\u6b21\u6325\u624b-300x293.png 300w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCP\u56db\u6b21\u6325\u624b-1024x1000.png 1024w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCP\u56db\u6b21\u6325\u624b-768x750.png 768w\" sizes=\"(max-width: 1310px) 100vw, 1310px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-507efa2 elementor-widget elementor-widget-text-editor\" data-id=\"507efa2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>\u2460\u5ba2\u6237\u7aef:\u53d1\u51fa\u65ad\u5f00\u8fde\u63a5\u8bf7\u6c42\uff1a\uff08FIN\uff09\u65ad\u5f00\u8fde\u63a5\u8bf7\u6c42\uff0cseq=1000\uff0cack=668<\/strong><br \/><strong>\u2461\u670d\u52a1\u7aef\uff1a\u6536\u5230\u5ba2\u6237\u7aef\u8bf7\u6c42\uff0c\u786e\u8ba4\uff08ACK\uff09\uff0c\u786e\u8ba4\u65ad\u5f00\uff0cseq=668\uff0cack=seq+1\uff081001\uff09<\/strong><br \/><strong>\u2462\u670d\u52a1\u7aef\uff1a\u5411\u5ba2\u6237\u7aef\u53d1\u51fa\u65ad\u5f00\u8fde\u63a5\u8bf7\u6c42\uff0c\uff08FIN\uff09\u65ad\u5f00\u8fde\u63a5\u8bf7\u6c42\uff0cseq=668 ack=seq+1\uff081001\uff09<\/strong><br \/><strong>\u2463\u5ba2\u6237\u7aef\uff1a\u786e\u8ba4\u6536\u5230\u8bf7\u6c42\uff0c\u65ad\u5f00\u8fde\u63a5\uff0c\uff08ACK\uff09\u786e\u8ba4\u6536\u5230\u8bf7\u6c42\uff0cseq=1001\uff0cack=seq+1\uff08669\uff09<\/strong><\/p><p><strong>\u8fde\u63a5\u65ad\u5f00<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9ca02f8 elementor-widget elementor-widget-heading\" data-id=\"9ca02f8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"%E5%B8%B8%E8%A7%81TCP%E4%B8%AD%E7%9A%84%E6%A0%87%E8%AE%B0%E4%BD%8D\"><\/span>\u5e38\u89c1TCP\u4e2d\u7684\u6807\u8bb0\u4f4d<span class=\"ez-toc-section-end\"><\/span><\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bea9010 elementor-widget elementor-widget-text-editor\" data-id=\"bea9010\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>\u6293\u5305\u65f6\u770b\u5230\u7684\u6807\u8bb0\u4f4d<\/strong><br \/><strong>SYN\u00a0 \u00a0 \u00a0 \u00a0sync\u540c\u6b65\u8bf7\u6c42\uff0c\u4e0e\u670d\u52a1\u5668\u7aef\u53e3\u5efa\u7acb\u8fde\u63a5<\/strong><br \/><strong>ACK\u00a0 \u00a0 \u00a0 \u00a0ack\u786e\u8ba4\uff08\u56de\u590d\uff1a\u6536\u5230\uff09<\/strong><br \/><strong>FIN\u00a0 \u00a0 \u00a0 \u00a0 finnish\/final \u7ed3\u675f\uff1a\u65ad\u5f00\u8fde\u63a5<\/strong><br \/><strong>PSH\u00a0 \u00a0 \u00a0 \u00a0\u8868\u793a\u4f20\u8f93\u6570\u636e<\/strong><\/p><p><strong>seq\uff0cack<\/strong><br \/><strong>seq\u00a0 \u00a0 \u00a0 sequence \u5e8f\u5217\u53f7\uff0c\u968f\u673a<\/strong><br \/><strong>ack\u00a0 \u00a0 \u00a0 ack\uff0c\u786e\u8ba4\u53f7<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b05a43b elementor-widget elementor-widget-heading\" data-id=\"b05a43b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"TCPUDP%E5%8C%BA%E5%88%AB\"><\/span>TCP\/UDP\u533a\u522b<span class=\"ez-toc-section-end\"><\/span><\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-da23c6d elementor-widget elementor-widget-text-editor\" data-id=\"da23c6d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>TCP\u6ce8\u91cd\u7a33\u5b9a\uff0cUDP\u6ce8\u91cd\u6548\u7387<\/strong><br \/><strong>\u540c\u4e3a4\u5c42\u534f\u8bae\uff08OSI\uff09<\/strong><br \/><strong>TCP\uff1a\u4f20\u8f93\u63a7\u5236\u534f\u8bae\uff1a\u57fa\u4e8e3\u6b21\u63e1\u624b4\u6b21\u6325\u624b\uff0c\u53ef\u9760\u8fde\u63a5<\/strong><br \/><strong>UDP\uff1a\u7528\u6237\u6570\u636e\u62a5\u534f\u8bae\uff1a\u4e0d\u53ef\u9760\u8fde\u63a5<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2078af0 elementor-widget elementor-widget-image\" data-id=\"2078af0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"2038\" height=\"409\" src=\"https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCPUDP\u533a\u522b.png\" class=\"attachment-full size-full wp-image-516\" alt=\"\" srcset=\"https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCPUDP\u533a\u522b.png 2038w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCPUDP\u533a\u522b-300x60.png 300w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCPUDP\u533a\u522b-1024x206.png 1024w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCPUDP\u533a\u522b-768x154.png 768w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCPUDP\u533a\u522b-1536x308.png 1536w\" sizes=\"(max-width: 2038px) 100vw, 2038px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e4e893e elementor-widget elementor-widget-text-editor\" data-id=\"e4e893e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2><span class=\"ez-toc-section\" id=\"TCPUDP%E6%95%B0%E6%8D%AE%E5%8C%85%E7%BB%93%E6%9E%84\"><\/span>TCP\/UDP\u6570\u636e\u5305\u7ed3\u6784<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-050ff8d elementor-widget elementor-widget-image\" data-id=\"050ff8d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1425\" height=\"1084\" src=\"https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCP\u6570\u636e\u5305\u7ed3\u6784.png\" class=\"attachment-full size-full wp-image-517\" alt=\"\" srcset=\"https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCP\u6570\u636e\u5305\u7ed3\u6784.png 1425w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCP\u6570\u636e\u5305\u7ed3\u6784-300x228.png 300w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCP\u6570\u636e\u5305\u7ed3\u6784-1024x779.png 1024w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCP\u6570\u636e\u5305\u7ed3\u6784-768x584.png 768w\" sizes=\"(max-width: 1425px) 100vw, 1425px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f4d3ce2 elementor-widget elementor-widget-image\" data-id=\"f4d3ce2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1691\" height=\"1040\" src=\"https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/UDP\u6570\u636e\u5305\u7ed3\u6784.png\" class=\"attachment-full size-full wp-image-518\" alt=\"\" srcset=\"https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/UDP\u6570\u636e\u5305\u7ed3\u6784.png 1691w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/UDP\u6570\u636e\u5305\u7ed3\u6784-300x185.png 300w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/UDP\u6570\u636e\u5305\u7ed3\u6784-1024x630.png 1024w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/UDP\u6570\u636e\u5305\u7ed3\u6784-768x472.png 768w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/UDP\u6570\u636e\u5305\u7ed3\u6784-1536x945.png 1536w\" sizes=\"(max-width: 1691px) 100vw, 1691px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d9cbe67 elementor-widget elementor-widget-text-editor\" data-id=\"d9cbe67\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h1><span class=\"ez-toc-section\" id=\"TCP%E7%9A%8411%E7%A7%8D%E7%8A%B6%E6%80%81%E8%BD%AC%E5%8C%96\"><\/span><strong>TCP\u768411\u79cd\u72b6\u6001\u8f6c\u5316<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h1>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8bc851c elementor-widget elementor-widget-text-editor\" data-id=\"8bc851c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>\u76ee\u6807\uff1a\u638c\u63e1tcp\u4e09\u6b21\u63e1\u624b\uff0c\u56db\u6b21\u6325\u624b\u7684\u65f6\u5019\u5ba2\u6237\u7aef\uff0c\u670d\u52a1\u7aef\u5e38\u89c1\u72b6\u6001<\/strong><br \/><strong>tcp3\u6b21\u63e1\u624b\uff0c4\u6b21\u6325\u624b\u7684\u65f6\u5019\u9700\u8981\u7ecf\u5386\u4e00\u4e2a\u8fc7\u7a0b\uff0c\u5728\u5efa\u7acb\u8fde\u63a5\u548c\u65ad\u5f00\u8fde\u63a5\u7684\u65f6\u5019\uff0c\u670d\u52a1\u7aef\u548c\u5ba2\u6237\u7aef\u5c31\u6709\u4e00\u4e9b\u72b6\u6001<\/strong><br \/><strong>\u6700\u5bb9\u6613\u7406\u89e3\u7684\u72b6\u6001\uff1aCLOSED\u5173\u95ed\u00a0 \u00a0 \u00a0 establish\u5efa\u7acb\u8fde\u63a5<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bb617c9 elementor-widget elementor-widget-text-editor\" data-id=\"bb617c9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2><span class=\"ez-toc-section\" id=\"%E4%B8%89%E6%AC%A1%E6%8F%A1%E6%89%8B%E7%9A%84%E7%8A%B6%E6%80%81\"><\/span><strong>\u4e09\u6b21\u63e1\u624b\u7684\u72b6\u6001<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-acfd288 elementor-widget elementor-widget-text-editor\" data-id=\"acfd288\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>TCP\u4e09\u6b21\u63e1\u624b\u72b6\u6001\u8f6c\u6362\u7b80\u5355\u8bf4\u660e:<\/strong><br \/><strong>\u51c6\u59071.:\u9996\u5148\uff0c\u5efa\u7acb\u8fde\u63a5\u4e4b\u524d\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u7684\u72b6\u6001\u90fd\u4e3aCLOSED.<\/strong><br \/><strong>\u51c6\u59072.:\u670d\u52a1\u5668\u521b\u5efasocket\u540e\u5f00\u59cb\u76d1\u542c(\u542f\u52a8\u670d\u52a1)\uff0c\u53d8\u4e3aLISTEN\u72b6\u6001\u3002<\/strong><br \/><strong>\u5ba2\u6237\u7aef3.:SYN\u8bf7\u6c42\uff0c\u5ba2\u6237\u7aef\u8bf7\u6c42\u5efa\u7acb\u8fde\u63a5\uff0c\u5411\u670d\u52a1\u5668\u53d1\u9001SYN\u62a5\u6587\uff0c\u5ba2\u6237\u7aef\u7684\u72b6\u6001\u53d8\u4e3aSYN_SENT<\/strong><br \/><strong>\u670d\u52a1\u7aef4.:\u670d\u52a1\u5668\u6536\u5230\u5ba2\u6237\u7aef\u7684\u62a5\u6587\u540e\u5411\u5ba2\u6237\u7aef\u53d1\u9001ACK\u548cSYN\u62a5\u6587\uff0c\u6b64\u65f6\u670d\u52a1\u5668\u7684\u72b6\u6001\u53d8\u4e3aSYN_RCVD\uff0c(\u6536\u5230\u4e86\u5ba2\u6237\u7aef\u53d1\u9001\u7684SYN\u8bf7\u6c42)<\/strong><br \/><strong>\u5ba2\u6237\u7aef5.\uff1a \u7136\u540e\uff0c\u5ba2\u6237\u7aef\u6536\u5230ACK\u3001SYN\uff0c\u5c31\u5411\u670d\u52a1\u5668\u53d1\u9001ACK\uff0c\u5ba2\u6237\u7aef\u72b6\u6001\u53d8\u4e3aESTABLISHED<\/strong><br \/><strong>\u670d\u52a1\u7aef6.\uff1a\u670d\u52a1\u5668\u6536\u5230\u5ba2\u6237\u7aef\u7684ACK\u540e<\/strong><strong>\u4e5f\u53d8\u4e3aESTABLISHED\u3002<\/strong><\/p><p><strong>\u6b64\u65f63\u6b21\u63e1\u624b\u5b8c\u6210\uff0c\u8fde\u63a5\u5efa\u7acb!<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9d7c163 elementor-widget elementor-widget-image\" data-id=\"9d7c163\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2534\" height=\"1292\" src=\"https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/\u4e09\u6b21\u63e1\u624b\u72b6\u6001.png\" class=\"attachment-full size-full wp-image-519\" alt=\"\" srcset=\"https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/\u4e09\u6b21\u63e1\u624b\u72b6\u6001.png 2534w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/\u4e09\u6b21\u63e1\u624b\u72b6\u6001-300x153.png 300w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/\u4e09\u6b21\u63e1\u624b\u72b6\u6001-1024x522.png 1024w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/\u4e09\u6b21\u63e1\u624b\u72b6\u6001-768x392.png 768w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/\u4e09\u6b21\u63e1\u624b\u72b6\u6001-1536x783.png 1536w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/\u4e09\u6b21\u63e1\u624b\u72b6\u6001-2048x1044.png 2048w\" sizes=\"(max-width: 2534px) 100vw, 2534px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8c1930d elementor-widget elementor-widget-text-editor\" data-id=\"8c1930d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2><span class=\"ez-toc-section\" id=\"%E5%9B%9B%E6%AC%A1%E6%8C%A5%E6%89%8B%E7%9A%84%E7%8A%B6%E6%80%81\"><\/span><strong>\u56db\u6b21\u6325\u624b\u7684\u72b6\u6001<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f0be59e elementor-widget elementor-widget-text-editor\" data-id=\"f0be59e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>\u5ba2\u6237\u7aef01:\u5ba2\u6237\u7aef\u5148\u5411\u670d\u52a1\u5668\u53d1\u9001FIN\u62a5\u6587\uff0c\u8bf7\u6c42\u65ad\u5f00\u8fde\u63a5\uff0c\u5176\u72b6\u6001\u53d8\u4e3aFIN_WAIT1<\/strong><br \/><strong>\u670d\u52a1\u7aef02.:\u670d\u52a1\u5668\u6536\u5230FIN\u540e\u5411\u5ba2\u6237\u7aef\u53d1\u9001ACK\uff0c\u670d\u52a1\u5668\u72b6\u6001\u53d8\u4e3aCLOSE_WAIT<\/strong><br \/><strong>\u5ba2\u6237\u7aef03.:\u5ba2\u6237\u7aef\u6536\u5230ACK\u540e\u5c31\u8fdb\u5165FIN_WAIT2\u72b6\u6001\u3002\u6b64\u65f6\u8fde\u63a5\u5df2\u7ecf\u65ad\u5f00\u4e86\u4e00\u534a\u4e86\u3002\u5982\u679c\u670d\u52a1\u5668\u8fd8\u6709\u6570\u636e\u8981\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\uff0c\u5c31\u4f1a\u7ee7\u7eed\u53d1\u9001\u3002<\/strong><br \/><strong>\u670d\u52a1\u7aef04.:\u76f4\u5230\u53d1\u5b8c\u4e86\uff0c\u5c31\u53d1\u9001FIN\u62a5\u6587\uff0c\u6b64\u65f6\u670d\u52a1\u5668\u8fdb\u5165LAST_ACK\u72b6\u6001<\/strong><br \/><strong>\u5ba2\u6237\u7aef05.:\u5ba2\u6237\u7aef\u6536\u5230\u670d\u52a1\u5668\u7684FIN\u540e\uff0c\u9a6c\u4e0a\u53d1\u9001ACK\u7ed9\u670d\u52a1\u5668\uff0c\u6b64\u65f6\u5ba2\u6237\u7aef\u8fdb\u5165TIME_WAIT\u72b6\u6001,\u518d\u8fc7\u4e862MSL\u957f\u7684\u65f6\u95f4\u540e\u8fdb\u5165CLOSED\u72b6\u6001\u3002<\/strong><br \/><strong>\u670d\u52a1\u7aef06.:\u670d\u52a1\u5668\u6536\u5230\u5ba2\u6237\u7aef\u7684ACK\u5c31\u8fdb\u5165CLOSED\u72b6\u6001\u3002<\/strong><\/p><p><strong>\u6b64\u65f6\u56db\u6b21\u6325\u624b\u5b8c\u6210\uff0c\u8fde\u63a5\u65ad\u5f00\uff01<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-812c97e elementor-widget elementor-widget-image\" data-id=\"812c97e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2051\" height=\"1249\" src=\"https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/\u56db\u6b21\u6325\u624b\u72b6\u6001.png\" class=\"attachment-full size-full wp-image-520\" alt=\"\" srcset=\"https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/\u56db\u6b21\u6325\u624b\u72b6\u6001.png 2051w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/\u56db\u6b21\u6325\u624b\u72b6\u6001-300x183.png 300w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/\u56db\u6b21\u6325\u624b\u72b6\u6001-1024x624.png 1024w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/\u56db\u6b21\u6325\u624b\u72b6\u6001-768x468.png 768w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/\u56db\u6b21\u6325\u624b\u72b6\u6001-1536x935.png 1536w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/\u56db\u6b21\u6325\u624b\u72b6\u6001-2048x1247.png 2048w\" sizes=\"(max-width: 2051px) 100vw, 2051px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-25b2a90 elementor-widget elementor-widget-text-editor\" data-id=\"25b2a90\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2><span class=\"ez-toc-section\" id=\"%E7%AC%AC%E5%8D%81%E4%B8%80%E7%A7%8D%E7%8A%B6%E6%80%81%E8%A1%A5%E5%85%85\"><\/span>\u7b2c\u5341\u4e00\u79cd\u72b6\u6001\u8865\u5145<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ce83ddd elementor-widget elementor-widget-text-editor\" data-id=\"ce83ddd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tCLOSING\u72b6\u6001\u8868\u793a\uff1a\n\u5ba2\u6237\u7aef\u53d1\u4e86FIN\uff0c\u4f46\u5ba2\u6237\u7aef\u5728FIN_WAIT\u72b6\u6001\u65f6\u6ca1\u6709\u6536\u5230\u670d\u52a1\u5668\u7684ACK\u786e\u8ba4\u5b57\u6bb5\uff0c\u5374\u6536\u5230\u4e86\u670d\u52a1\u5668\u7684FIN\u5b57\u6bb5\uff0c\u8fd9\u79cd\u60c5\u51b5\u53d1\u751f\u5728\u670d\u52a1\u5668\u53d1\u9001\u7684ACK\u4e22\u5305\u7684\u65f6\u5019\uff0c\u56e0\u4e3a\u7f51\u7edc\u4f20\u8f93\u6709\u65f6\u4f1a\u6709\u610f\u5916\u3002\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-80058e0 elementor-widget elementor-widget-image\" data-id=\"80058e0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1106\" height=\"1077\" src=\"https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/CLOSING\u72b6\u6001.png\" class=\"attachment-full size-full wp-image-521\" alt=\"\" srcset=\"https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/CLOSING\u72b6\u6001.png 1106w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/CLOSING\u72b6\u6001-300x292.png 300w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/CLOSING\u72b6\u6001-1024x997.png 1024w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/CLOSING\u72b6\u6001-768x748.png 768w\" sizes=\"(max-width: 1106px) 100vw, 1106px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bfdc1a3 elementor-widget elementor-widget-text-editor\" data-id=\"bfdc1a3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2><span class=\"ez-toc-section\" id=\"tcp11%E7%A7%8D%E7%8A%B6%E6%80%81%E5%B0%8F%E7%BB%93\"><\/span>tcp11\u79cd\u72b6\u6001\u5c0f\u7ed3<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c643a64 elementor-widget elementor-widget-text-editor\" data-id=\"c643a64\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>\u6838\u5fc3\u5fc5\u4f1a\uff1aCLOSED\uff0cESTABLISHED\uff0cLISTEN\uff0cTIME_WAIT,CLOSE_WAIT<\/strong><\/p><p><strong>\u9010\u6e10\u638c\u63e1\uff1aFIN_WAIT,FIN_WAIT2,CLOSING,SYN_SENT,LAST_ACK<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-620b576 elementor-widget elementor-widget-image\" data-id=\"620b576\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1930\" height=\"1213\" src=\"https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCP11\u79cd\u72b6\u6001\u4e00\u56fe\u663e\u793a.png\" class=\"attachment-full size-full wp-image-522\" alt=\"\" srcset=\"https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCP11\u79cd\u72b6\u6001\u4e00\u56fe\u663e\u793a.png 1930w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCP11\u79cd\u72b6\u6001\u4e00\u56fe\u663e\u793a-300x189.png 300w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCP11\u79cd\u72b6\u6001\u4e00\u56fe\u663e\u793a-1024x644.png 1024w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCP11\u79cd\u72b6\u6001\u4e00\u56fe\u663e\u793a-768x483.png 768w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCP11\u79cd\u72b6\u6001\u4e00\u56fe\u663e\u793a-1536x965.png 1536w\" sizes=\"(max-width: 1930px) 100vw, 1930px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-857f935 elementor-widget elementor-widget-image\" data-id=\"857f935\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"821\" height=\"461\" src=\"https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCP\u72b6\u600111.png\" class=\"attachment-full size-full wp-image-581\" alt=\"\" srcset=\"https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCP\u72b6\u600111.png 821w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCP\u72b6\u600111-300x168.png 300w, https:\/\/linuxjk.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/03\/TCP\u72b6\u600111-768x431.png 768w\" sizes=\"(max-width: 821px) 100vw, 821px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>TCP\u4e09\u6b21\u63e1\u624b\u4e0e\u56db\u6b21\u6325\u624b\u8fc7\u7a0b TCP\u4e09\u6b21\u63e1\u624b tcp\u4e4b\u6240\u4ee5\u79f0\u4e3a\u7a33\u5b9a\uff0c\u53ef\u9760\u7684\u3002\u56e0\u4e3a\u5efa\u7acb\u8fde\u63a5\u7684\u65f6\u5019\u8981\u7ecf\u8fc7\u4e09\u6b21\u63e1\u624bt [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[12],"class_list":["post-504","post","type-post","status-publish","format-standard","hentry","category-vxhs888p","tag-study-note"],"_links":{"self":[{"href":"https:\/\/linuxjk.cn\/index.php?rest_route=\/wp\/v2\/posts\/504","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/linuxjk.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/linuxjk.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/linuxjk.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/linuxjk.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=504"}],"version-history":[{"count":8,"href":"https:\/\/linuxjk.cn\/index.php?rest_route=\/wp\/v2\/posts\/504\/revisions"}],"predecessor-version":[{"id":584,"href":"https:\/\/linuxjk.cn\/index.php?rest_route=\/wp\/v2\/posts\/504\/revisions\/584"}],"wp:attachment":[{"href":"https:\/\/linuxjk.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=504"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/linuxjk.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=504"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/linuxjk.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=504"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}