{"id":16388,"date":"2024-09-18T15:15:43","date_gmt":"2024-09-18T07:15:43","guid":{"rendered":"https:\/\/92it.top\/?p=16388"},"modified":"2024-09-18T15:15:43","modified_gmt":"2024-09-18T07:15:43","slug":"tcp%e7%9a%84%e7%ac%ac%e4%b8%89%e6%ac%a1%e6%8f%a1%e6%89%8b%e6%b2%a1%e6%9c%89%e5%9b%9e%e5%a4%8d%ef%bc%8c%e4%bc%9a%e6%9c%89%e4%bb%80%e4%b9%88%e9%97%ae%e9%a2%98%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=16388","title":{"rendered":"TCP\u7684\u7b2c\u4e09\u6b21\u63e1\u624b\u6ca1\u6709\u56de\u590d\uff0c\u4f1a\u6709\u4ec0\u4e48\u95ee\u9898\uff1f"},"content":{"rendered":"\n<p><strong>\u524d\u8a00<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u5bf9\u4e8e\u8fd9\u9053\u9898\uff0c\u6211\u4eec\u5982\u4f55\u53bb\u56de\u7b54\uff0c\u624d\u66f4\u597d\u5462\uff1f\u5982\u679c\u662f\u6211\uff0c\u6211\u4f1a\u6309\u7167\u8fd9\u51e0\u4e2a\u7ef4\u5ea6\uff1a<\/p>\n\n\n\n<ul>\n<li>TCP\u7684\u4e09\u6b21\u63e1\u624b\u8fc7\u7a0b<\/li>\n\n\n\n<li>\u7b2c\u4e09\u6b21\u63e1\u624b\u6ca1\u6709\u56de\u590d\uff0c\u8fde\u63a5\u5efa\u7acb\u4e0d\u4e86\uff0c\u8bb2\u89e3\u4e3a\u4ec0\u4e48\u9700\u8981\u4e09\u6b21\u63e1\u624b<\/li>\n\n\n\n<li>\u7b2c\u4e09\u6b21\u63e1\u624b\u6ca1\u6709\u56de\u590d\uff0c\u670d\u52a1\u5668\u4f1a\u51fa\u73b0\u4ec0\u4e48\u73b0\u8c61\uff1f\u8d85\u65f6\u91cd\u4f20\u673a\u5236<\/li>\n\n\n\n<li>\u7b2c\u4e09\u6b21\u63e1\u624b\u6ca1\u6709\u56de\u590d\uff0c\u8bb2\u89e3\u534a\u8fde\u63a5\u961f\u5217\uff08SYN\u961f\u5217\uff09\u548cSYN Flood \u653b\u51fb<\/li>\n\n\n\n<li>TCP \u63e1\u624b\uff0c\u5728\u540e\u7aef\u601d\u60f3\u7684\u4e00\u4e9b\u76f8\u4f3c\u5e94\u7528<\/li>\n<\/ul>\n\n\n\n<p><strong>1. TCP\u7684\u4e09\u6b21\u63e1\u624b\u8fc7\u7a0b<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"709\" height=\"1024\" src=\"https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-141-709x1024.png\" alt=\"\" class=\"wp-image-16390\" style=\"width:408px;height:auto\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-141-709x1024.png 709w, https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-141-208x300.png 208w, https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-141-768x1110.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-141-830x1199.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-141-230x332.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-141-350x506.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-141-480x694.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-141.png 984w\" sizes=\"(max-width: 709px) 100vw, 709px\" \/><\/figure><\/div>\n\n\n<p>\u5f00\u59cb\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u90fd\u5904\u4e8eCLOSED\u72b6\u6001\uff0c\u7136\u540e\u670d\u52a1\u7aef\u5f00\u59cb\u76d1\u542c\u67d0\u4e2a\u7aef\u53e3\uff0c\u8fdb\u5165LISTEN\u72b6\u6001<\/p>\n\n\n\n<ul>\n<li>\u7b2c\u4e00\u6b21\u63e1\u624b(SYN=1, seq=x)\uff0c\u53d1\u9001\u5b8c\u6bd5\u540e\uff0c\u5ba2\u6237\u7aef\u8fdb\u5165SYN_SEND\u72b6\u6001<\/li>\n\n\n\n<li>\u7b2c\u4e8c\u6b21\u63e1\u624b(SYN=1, ACK=1, seq=y, ACKnum=x+1)\uff0c \u53d1\u9001\u5b8c\u6bd5\u540e\uff0c\u670d\u52a1\u5668\u7aef\u8fdb\u5165 SYN_RCVD \u72b6\u6001\u3002<\/li>\n\n\n\n<li>\u7b2c\u4e09\u6b21\u63e1\u624b(ACK=1\uff0cACKnum=y+1)\uff0c\u53d1\u9001\u5b8c\u6bd5\u540e\uff0c\u5ba2\u6237\u7aef\u8fdb\u5165 ESTABLISHED \u72b6\u6001\uff0c\u5f53\u670d\u52a1\u5668\u7aef\u63a5\u6536\u5230\u8fd9\u4e2a\u5305\u65f6,\u4e5f\u8fdb\u5165 ESTABLISHED \u72b6\u6001\uff0cTCP \u63e1\u624b\uff0c\u5373\u53ef\u4ee5\u5f00\u59cb\u6570\u636e\u4f20\u8f93\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>2. \u7b2c\u4e09\u6b21\u63e1\u624b\u6ca1\u6709\u56de\u590d\uff0c\u8fde\u63a5\u5efa\u7acb\u4e0d\u4e86.<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u4e0a\u4e2a\u5c0f\u8282\uff0c\u6211\u4eec\u68b3\u7406\u5b8cTCP\u4e09\u6b21\u63e1\u624b\u6d41\u7a0b\uff0c\u4e5f\u5c31\u662fTCP\u9700\u8981\u4e09\u6b21\u63e1\u624b\uff0c\u624d\u80fd\u771f\u6b63\u5efa\u7acb\u8fde\u63a5\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u670d\u52a1\u5668\u6ca1\u6709\u6536\u5230\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u7b2c\u4e09\u6b21\u63e1\u624b\u7684ACK\u786e\u8ba4\u5305\uff0c\u90a3\u4e48\u4ece\u670d\u52a1\u5668\u7684\u89d2\u5ea6\u770b\uff0c\u8fd9\u4e2a\u8fde\u63a5\u4ecd\u5904\u4e8e<strong>\u672a\u5b8c\u5168\u5efa\u7acb<\/strong>\u7684\u72b6\u6001\uff0c\u4e0d\u80fd\u6b63\u5f0f\u7528\u4e8e\u6570\u636e\u4f20\u8f93\u3002<\/p>\n\n\n\n<p>\u4e5f\u5c31\u662f\u5982\u679c\u6ca1\u6709\u7b2c\u4e09\u6b21\u63e1\u624b\u56de\u590d\uff0c\u53ea\u6709\u4e24\u6b21\u63e1\u624b\uff0c\u90a3\u662f\u4e0d\u884c\u7684\u3002TCP\u8fde\u63a5\uff0c\u4e3a\u4ec0\u4e48\u9700\u8981\u4e09\u6b21\u63e1\u624b\uff0c\u4e3a\u4ec0\u4e48\u4e24\u6b21\u4e0d\u884c\uff0c\u4e3a\u4ec0\u4e48\u56db\u6b21\u4e0d\u884c\uff1f<\/p>\n\n\n\n<p>\u4e3a\u4e86\u65b9\u4fbf\u7406\u89e3\uff0c\u6211\u4eec\u4ee5\u8c08\u604b\u7231\u4e3a\u4f8b\u5b50\uff1a\u4e24\u4e2a\u4eba\u80fd\u8d70\u5230\u4e00\u8d77\uff0c\u6700\u91cd\u8981\u7684\u4e8b\u60c5\u5c31\u662f\u76f8\u7231\uff0c\u5c31\u662f\u6211\u7231\u4f60\uff0c\u5e76\u4e14\u6211\u77e5\u9053\uff0c\u4f60\u4e5f\u7231\u6211\uff0c\u63a5\u4e0b\u6765\u6211\u4eec\u4ee5\u6b64\u6765\u6a21\u62df\u4e09\u6b21\u63e1\u624b\u7684\u8fc7\u7a0b\uff1a<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"468\" height=\"1024\" src=\"https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-143-468x1024.png\" alt=\"\" class=\"wp-image-16392\" style=\"width:296px;height:auto\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-143-468x1024.png 468w, https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-143-137x300.png 137w, https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-143-702x1536.png 702w, https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-143-230x503.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-143-350x765.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-143-480x1050.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-143.png 728w\" sizes=\"(max-width: 468px) 100vw, 468px\" \/><\/figure><\/div>\n\n\n<p><strong>\u4e3a\u4ec0\u4e48\u63e1\u624b\u4e0d\u80fd\u662f\u4e24\u6b21\u5462\uff1f<\/strong><\/p>\n\n\n\n<p>\u5982\u679c\u53ea\u6709\u4e24\u6b21\u63e1\u624b\uff0c\u5973\u5b69\u5b50\u53ef\u80fd\u5c31\u4e0d\u77e5\u9053\uff0c\u5979\u7684\u90a3\u53e5\u6211\u4e5f\u7231\u4f60\uff0c\u7537\u5b69\u5b50\u662f\u5426\u6536\u5230\uff0c\u604b\u7231\u5173\u7cfb\u5c31\u4e0d\u80fd\u6109\u5feb\u5c55\u5f00\u3002<\/p>\n\n\n\n<p><strong>\u4e3a\u4ec0\u4e48\u63e1\u624b\u4e0d\u80fd\u662f\u56db\u6b21\u5462\uff1f<\/strong><\/p>\n\n\n\n<p>\u56e0\u4e3a\u63e1\u624b\u4e0d\u80fd\u662f\u56db\u6b21\u5462\uff1f\u56e0\u4e3a\u4e09\u6b21\u5df2\u7ecf\u591f\u4e86\uff0c\u4e09\u6b21\u5df2\u7ecf\u80fd\u8ba9\u53cc\u65b9\u90fd\u77e5\u9053\uff1a\u4f60\u7231\u6211\uff0c\u6211\u4e5f\u7231\u4f60\u3002\u800c\u56db\u6b21\u5c31\u591a\u4f59\u4e86\u3002<\/p>\n\n\n\n<p><strong>3. \u7b2c\u4e09\u6b21\u63e1\u624b\u6ca1\u6709\u56de\u590d\uff0c\u670d\u52a1\u5668\u4f1a\u51fa\u73b0\u4ec0\u4e48\u73b0\u8c61\uff1f<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>TCP\u4e09\u6b21\u63e1\u624b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">\u670d\u52a1\u5668\u5728\u6536\u5230\u5ba2\u6237\u7aef\u7684 SYN \u62a5\u6587\u540e\uff0c\u4f1a\u53d1\u9001\u4e00\u4e2a SYN-ACK \u62a5\u6587\u5e76\u8fdb\u5165 SYN-RECEIVED \u72b6\u6001\u3002\u6b64\u65f6\uff0c\u5b83\u6b63\u5728\u7b49\u5f85\u5ba2\u6237\u7aef\u53d1\u9001\u7684 ACK \u62a5\u6587\u3002\u5982\u679c\u5ba2\u6237\u7aef\u7684 ACK \u62a5\u6587\u6ca1\u6709\u5230\u8fbe\u670d\u52a1\u5668\uff0c\u670d\u52a1\u5668\u4f1a\u5728 SYN-RECEIVED \u72b6\u6001\u4e2d\u505c\u7559\u4e00\u6bb5\u65f6\u95f4\uff08\u901a\u5e38\u79f0\u4e3a\u8d85\u65f6\u91cd\u4f20\u65f6\u95f4\uff09\u3002<\/pre>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u7b2c\u4e09\u6b21\u63e1\u624b\u6ca1\u6709ACK\u56de\u590d\uff0c\u670d\u52a1\u5668\u4f1a\u5728 SYN-RECEIVED \u72b6\u6001\u4e2d\u505c\u7559\u4e00\u6bb5\u65f6\u95f4\u3002\u7136\u540e<strong>\u8d85\u65f6\u91cd\u4f20<\/strong>\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">\u7136\u540e\u5982\u679c\u6ca1\u6709\u6536\u5230\u5ba2\u6237\u7aef\u7684 ACK \u62a5\u6587\uff0c\u5b83\u4f1a\u91cd\u65b0\u53d1\u9001 SYN-ACK \u62a5\u6587\u3002<\/pre>\n\n\n\n<p>\u5f53\u7136\uff0c\u91cd\u8bd5\u80af\u5b9a\u6709\u6b21\u6570\u9650\u5236\u7684\uff0c\u5982\u679c\u5728\u91cd\u4f20\u4e86\u591a\u6b21\u4e4b\u540e\uff0c\u670d\u52a1\u5668\u4ecd\u7136\u6ca1\u6709\u6536\u5230\u5ba2\u6237\u7aef\u7684 ACK \u62a5\u6587\uff0c<strong>\u670d\u52a1\u5668\u4f1a\u8ba4\u4e3a\u8fde\u63a5\u5931\u8d25\uff0c\u5e76\u653e\u5f03\u8fd9\u6b21\u8fde\u63a5<\/strong>\u3002\u6b64\u65f6\uff0c\u670d\u52a1\u5668\u4f1a\u8fdb\u5165 CLOSED \u72b6\u6001\uff0c\u91ca\u653e\u8d44\u6e90\u3002<\/p>\n\n\n\n<p><strong>\u8d85\u65f6\u91cd\u4f20<\/strong><\/p>\n\n\n\n<p>TCP \u4e3a\u4e86\u5b9e\u73b0\u53ef\u9760\u4f20\u8f93\uff0c\u5b9e\u73b0\u4e86\u91cd\u4f20\u673a\u5236\u3002\u6700\u57fa\u672c\u7684\u91cd\u4f20\u673a\u5236\uff0c\u5c31\u662f<strong>\u8d85\u65f6\u91cd\u4f20<\/strong>\uff0c\u5373\u5728\u53d1\u9001\u6570\u636e\u62a5\u6587\u65f6\uff0c\u8bbe\u5b9a\u4e00\u4e2a\u5b9a\u65f6\u5668\uff0c\u6bcf\u95f4\u9694\u4e00\u6bb5\u65f6\u95f4\uff0c<strong>\u6ca1\u6709\u6536\u5230\u5bf9\u65b9\u7684ACK\u786e\u8ba4\u5e94\u7b54\u62a5\u6587\uff0c\u5c31\u4f1a\u91cd\u53d1\u8be5\u62a5\u6587\u3002<\/strong><\/p>\n\n\n\n<p>\u8fd9\u4e2a\u95f4\u9694\u65f6\u95f4\uff0c\u4e00\u822c\u8bbe\u7f6e\u4e3a\u591a\u5c11\u5462\uff1f\u6211\u4eec\u5148\u6765\u770b\u4e0b\u4ec0\u4e48\u53ebRTT\uff08Round-Trip Time\uff0c\u5f80\u8fd4\u65f6\u95f4\uff09\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"780\" src=\"https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-145-1024x780.png\" alt=\"\" class=\"wp-image-16394\" style=\"width:486px;height:auto\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-145-1024x780.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-145-300x228.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-145-768x585.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-145-830x632.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-145-230x175.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-145-350x267.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-145-480x366.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2024\/09\/\u56fe\u7247-145.png 1032w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<p>RTT\u5c31\u662f\uff0c<strong>\u4e00\u4e2a\u6570\u636e\u5305\u4ece\u53d1\u51fa\u53bb\u5230\u56de\u6765\u7684\u65f6\u95f4\uff0c\u5373\u6570\u636e\u5305\u7684\u4e00\u6b21\u5f80\u8fd4\u65f6\u95f4<\/strong>\u3002\u8d85\u65f6\u91cd\u4f20\u65f6\u95f4\uff0c\u5c31\u662fRetransmission Timeout \uff0c\u7b80\u79f0RTO\u3002<\/p>\n\n\n\n<p><strong>RTO\u8bbe\u7f6e\u591a\u4e45\u5462\uff1f<\/strong><\/p>\n\n\n\n<ul>\n<li>\u5982\u679cRTO\u6bd4\u8f83\u5c0f\uff0c\u90a3\u5f88\u53ef\u80fd\u6570\u636e\u90fd\u6ca1\u6709\u4e22\u5931\uff0c\u5c31\u91cd\u53d1\u4e86\uff0c\u8fd9\u4f1a\u5bfc\u81f4\u7f51\u7edc\u963b\u585e\uff0c\u4f1a\u5bfc\u81f4\u66f4\u591a\u7684\u8d85\u65f6\u51fa\u73b0\u3002<\/li>\n\n\n\n<li>\u5982\u679cRTO\u6bd4\u8f83\u5927\uff0c\u7b49\u5230\u82b1\u513f\u90fd\u8c22\u4e86\u8fd8\u662f\u6ca1\u6709\u91cd\u53d1\uff0c\u90a3\u6548\u679c\u5c31\u4e0d\u597d\u4e86\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4e00\u822c\u60c5\u51b5\u4e0b\uff0cRTO\u7565\u5927\u4e8eRTT\uff0c\u6548\u679c\u662f\u6700\u597d\u7684\u3002<\/p>\n\n\n\n<p><strong>4. \u534a\u8fde\u63a5\u961f\u5217\u548cSYN Flood \u653b\u51fb<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<pre class=\"wp-block-preformatted\">\u5728TCP\u7684\u4e09\u6b21\u63e1\u624b\u4e2d\uff0c\u670d\u52a1\u5668\u53d1\u9001SYN+ACK\u5305\u4e4b\u540e\uff0c\u4f1a\u7b49\u5f85\u5ba2\u6237\u7aef\u7684ACK\u3002\u5982\u679cACK\u6ca1\u6709\u6309\u65f6\u5230\u8fbe\uff0c\u53ef\u80fd\u662f\u56e0\u4e3a\u7f51\u7edc\u4e22\u5305\u6216\u662f\u6076\u610f\u653b\u51fb\uff08\u5982SYN Flood\u653b\u51fb\uff09<\/pre>\n\n\n\n<p>\u5982\u679c\u662f\u7f51\u7edc\u4e0d\u7a33\u5b9a\uff0c\u5bfc\u81f4\u7684\u7f51\u7edc\u4e22\u5305\uff0c\u4e00\u822c\u6211\u4eec\u91cd\u8bd5\u90fd\u4f1a\u6210\u529f\u7684\u3002\u8fd8\u6709\u4e2a\u53ef\u80fd\u7684\u539f\u56e0\uff0c\u5c31\u662fSYN Flood\u653b\u51fb\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">SYN Flood\u662f\u4e00\u79cd\u5178\u578b\u7684DoS (Denial of Service\uff0c\u62d2\u7edd\u670d\u52a1) \u653b\u51fb\uff0c\u5b83\u5728\u77ed\u65f6\u95f4\u5185\uff0c\u4f2a\u9020\u4e0d\u5b58\u5728\u7684IP\u5730\u5740,\u5411\u670d\u52a1\u5668\u5927\u91cf\u53d1\u8d77SYN\u62a5\u6587\u3002\u5f53\u670d\u52a1\u5668\u56de\u590dSYN+ACK\u62a5\u6587\u540e\uff0c\u4e0d\u4f1a\u6536\u5230ACK\u56de\u5e94\u62a5\u6587\uff0c\u5bfc\u81f4\u670d\u52a1\u5668\u4e0a\u5efa\u7acb\u5927\u91cf\u7684\u534a\u8fde\u63a5\u961f\u5217,\u534a\u8fde\u63a5\u961f\u5217\u6ee1\u4e86\uff0c\u8fd9\u5c31\u65e0\u6cd5\u5904\u7406\u6b63\u5e38\u7684TCP\u8bf7\u6c42\u5566\u3002<\/pre>\n\n\n\n<p><strong>5. TCP \u4e09\u6b21\u63e1\u624b\u7684\u4e00\u4e9b\u540e\u7aef\u601d\u60f3\u5e94\u7528<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>TCP\u4e09\u6b21\u63e1\u624b\uff0c\u80cc\u540e\u8574\u542b\u7684\u4e00\u4e9b\u601d\u60f3\u662f\u53ef\u4ee5\u5e94\u7528\u5230\u540e\u7aef\u7cfb\u7edf\u8bbe\u8ba1\u4e2d\u7684\u3002<\/p>\n\n\n\n<p><strong>5.1 \u72b6\u6001\u786e\u8ba4\u601d\u60f3<\/strong><\/p>\n\n\n\n<p>\u6bd4\u5982\uff0cTCP\u4e09\u6b21\u63e1\u624b\u786e\u4fdd\u53cc\u65b9\u90fd\u77e5\u9053\u5bf9\u65b9\u51c6\u5907\u597d\u8fdb\u884c\u901a\u4fe1\uff0c\u5e76\u4e14\u53cc\u65b9\u90fd\u80fd\u786e\u8ba4\u81ea\u5df1\u7684\u6d88\u606f\u88ab\u5bf9\u65b9\u6536\u5230\u3002\u8fd9\u4e2a\u673a\u5236\u672c\u8d28\u4e0a\u662f\u4e00\u79cd<strong>\u72b6\u6001\u540c\u6b65\u548c\u786e\u8ba4\u673a\u5236<\/strong>\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">\u8fd9\u79cd\u673a\u5236\u53ef\u4ee5\u5e94\u7528\u4e8e\u5206\u5e03\u5f0f\u7cfb\u7edf\u7684\u8282\u70b9\u95f4\u901a\u4fe1\u6216\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u7aef\u7684\u8fde\u63a5\u5efa\u7acb\u3002\u4f8b\u5982\uff0c\u5728\u5fae\u670d\u52a1\u4e4b\u95f4\u7684\u901a\u4fe1\u4e2d\uff0c\u53ef\u4ee5\u5728\u5efa\u7acb\u8fde\u63a5\u524d\uff0c\u8fdb\u884c\u53cc\u65b9\u7684\u72b6\u6001\u786e\u8ba4\u6216\u5065\u5eb7\u68c0\u67e5\uff0c\u786e\u4fdd\u540e\u7eed\u7684\u901a\u4fe1\u662f\u53ef\u9760\u7684\u3002<\/pre>\n\n\n\n<p><strong>5.2 \u8d85\u65f6\u91cd\u8bd5\u673a\u5236<\/strong><\/p>\n\n\n\n<p>\u518d\u6bd4\u5982\uff0cTCP\u4e09\u6b21\u63e1\u624b\u4e2d\uff0c\u670d\u52a1\u7aef\u4f1a\u7b49\u5f85\u5ba2\u6237\u7aef\u7684ACK\u786e\u8ba4\u5305\uff0c\u5982\u679c\u6ca1\u6709\u6536\u5230\uff0c\u4f1a\u6839\u636e\u4e00\u5b9a\u7b56\u7565\u8fdb\u884c\u91cd\u8bd5\uff0c\u8fd9\u80cc\u540e\u662f\u91cd\u8bd5\u4e0e\u8d85\u65f6\u7684\u673a\u5236\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">\u5728\u540e\u7aef\u670d\u52a1\u4e2d\uff0c\u91cd\u8bd5\u673a\u5236\u548c\u8d85\u65f6\u5904\u7406\u4e5f\u975e\u5e38\u91cd\u8981\u3002\u4f8b\u5982\u5728\u8c03\u7528\u7b2c\u4e09\u65b9API\u65f6\uff0c\u5982\u679c\u7f51\u7edc\u6ce2\u52a8\u5bfc\u81f4\u8bf7\u6c42\u5931\u8d25\uff0c\u7cfb\u7edf\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6e\u5408\u7406\u7684\u91cd\u8bd5\u7b56\u7565\uff08\u5982\u6307\u6570\u9000\u907f\u3001\u9650\u6d41\u7b49\uff09\u6765\u63d0\u9ad8\u6210\u529f\u7387\uff0c\u540c\u65f6\u907f\u514d\u8fc7\u8f7d\u3002\u5b9e\u4f8b\uff1aHTTP\u8bf7\u6c42\u7684\u91cd\u8bd5\u673a\u5236\u3001\u6d88\u606f\u961f\u5217\u7684\u91cd\u53d1\u7b56\u7565\u7b49\u3002<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u8a00 \u5bf9\u4e8e\u8fd9\u9053\u9898\uff0c\u6211\u4eec\u5982\u4f55\u53bb\u56de\u7b54\uff0c\u624d\u66f4\u597d\u5462\uff1f\u5982\u679c\u662f\u6211\uff0c\u6211\u4f1a\u6309\u7167\u8fd9\u51e0\u4e2a\u7ef4\u5ea6\uff1a 1. TCP\u7684\u4e09\u6b21\u63e1\u624b\u8fc7\u7a0b \u5f00\u59cb\u5ba2 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/16388"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=16388"}],"version-history":[{"count":1,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/16388\/revisions"}],"predecessor-version":[{"id":16395,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/16388\/revisions\/16395"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16388"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16388"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16388"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}