{"id":77525,"date":"2024-01-15T23:31:54","date_gmt":"2024-01-15T15:31:54","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=77525"},"modified":"2024-01-15T23:31:54","modified_gmt":"2024-01-15T15:31:54","slug":"tcp-fin-ack","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/77525.html","title":{"rendered":"TCP FIN ACK"},"content":{"rendered":"

  \u672c\u6587\u4ecb\u7ecdTCP\u8fde\u63a5\u4e2d\u7684FIN\u548cACK\u6807\u5fd7\uff0c\u4ee5\u53ca\u5b83\u4eec\u5728\u7f51\u7edc\u901a\u4fe1\u4e2d\u7684\u91cd\u8981\u4f5c\u7528\u3002\u901a\u8fc7\u6df1\u5165\u4e86\u89e3TCP FIN ACK\uff0c\u60a8\u5c06\u66f4\u597d\u5730\u7406\u89e3\u6570\u636e\u4f20\u8f93\u4e2d\u7684\u5173\u95ed\u8fc7\u7a0b\u548c\u786e\u4fdd\u901a\u4fe1\u5b89\u5168\u6027\u7684\u91cd\u8981\u673a\u5236\u3002<\/p>\n

TCP\u8fde\u63a5\u7684\u5173\u95ed\u8fc7\u7a0b<\/h2>\n

  TCP\uff08Transmission Control Protocol\uff09\u662f\u4e92\u8054\u7f51\u4e0a\u5e94\u7528\u6700\u5e7f\u6cdb\u7684\u4e00\u79cd\u4f20\u8f93\u5c42\u534f\u8bae\u3002\u5728TCP\u8fde\u63a5\u7684\u5173\u95ed\u8fc7\u7a0b\u4e2d\uff0cFIN\u548cACK\u6807\u5fd7\u626e\u6f14\u4e86\u91cd\u8981\u7684\u89d2\u8272\u3002<\/p>\n

  FIN\u6807\u5fd7<\/h3>\n

  \u5f53\u4e00\u65b9\u60f3\u8981\u5173\u95ed\u8fde\u63a5\u65f6\uff0c\u5b83\u4f1a\u53d1\u9001\u4e00\u4e2a\u5e26\u6709FIN\u6807\u5fd7\u7684TCP\u62a5\u6587\u6bb5\uff0c\u8868\u660e\u5b83\u5df2\u7ecf\u5b8c\u6210\u6570\u636e\u7684\u53d1\u9001\u3002\u8fd9\u4e2aFIN\u62a5\u6587\u6bb5\u4f1a\u8fdb\u5165\u201c\u534a\u5173\u95ed\u201d\u72b6\u6001\uff0c\u8868\u793a\u53d1\u9001\u65b9\u4e0d\u518d\u53d1\u9001\u6570\u636e\uff0c\u4f46\u4ecd\u80fd\u63a5\u6536\u6570\u636e\u3002<\/p>\n

  ACK\u6807\u5fd7<\/h3>\n

  \u63a5\u6536\u5230\u5e26\u6709FIN\u6807\u5fd7\u7684TCP\u62a5\u6587\u6bb5\u540e\uff0c\u63a5\u6536\u65b9\u4f1a\u53d1\u9001\u5e26\u6709ACK\u6807\u5fd7\u7684\u786e\u8ba4\u62a5\u6587\u6bb5\uff0c\u8868\u793a\u5df2\u7ecf\u63a5\u6536\u5230\u4e86\u5173\u95ed\u8bf7\u6c42\u3002\u8fd9\u6837\uff0c\u53cc\u65b9\u5b8c\u6210\u4e86\u6570\u636e\u4f20\u8f93\u7684\u5173\u95ed\u8fc7\u7a0b\u3002<\/p>\n

TCP FIN ACK\u7684\u5b89\u5168\u6027\u610f\u4e49<\/h2>\n

  \u5728\u7f51\u7edc\u901a\u4fe1\u4e2d\uff0c\u786e\u4fdd\u8fde\u63a5\u7684\u5b89\u5168\u5173\u95ed\u5bf9\u4e8e\u9632\u6b62\u6570\u636e\u6cc4\u9732\u548c\u6076\u610f\u653b\u51fb\u81f3\u5173\u91cd\u8981\u3002TCP FIN ACK\u5728\u8fd9\u65b9\u9762\u53d1\u6325\u4e86\u91cd\u8981\u7684\u4f5c\u7528\u3002<\/p>\n

  \u8fde\u63a5\u91ca\u653e\u7684\u5b89\u5168\u98ce\u9669<\/h3>\n

  \u5982\u679c\u8fde\u63a5\u91ca\u653e\u8fc7\u7a0b\u4e0d\u5b89\u5168\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6570\u636e\u88ab\u7a83\u53d6\u6216\u7be1\u6539\u3002\u4f7f\u7528TCP FIN ACK\u673a\u5236\u53ef\u4ee5\u786e\u4fdd\u8fde\u63a5\u5728\u5173\u95ed\u8fc7\u7a0b\u4e2d\u7684\u5b89\u5168\u6027\uff0c\u9632\u6b62\u4e0d\u660e\u8eab\u4efd\u7684\u7f51\u7edc\u8282\u70b9\u4ecb\u5165\u653b\u51fb\u3002<\/p>\n

  \u9632\u8303\u62d2\u7edd\u670d\u52a1\u653b\u51fb<\/h3>\n

  \u901a\u8fc7\u5408\u7406\u5229\u7528TCP FIN ACK\uff0c\u53ef\u4ee5\u9632\u8303\u62d2\u7edd\u670d\u52a1\uff08DoS\uff09\u653b\u51fb\uff0c\u786e\u4fdd\u7f51\u7edc\u670d\u52a1\u7684\u6b63\u5e38\u8fd0\u884c\u548c\u8fde\u63a5\u7684\u53ef\u9760\u5173\u95ed\u3002<\/p>\n

\u603b\u7ed3<\/h2>\n

  \u5728TCP\u8fde\u63a5\u7684\u5173\u95ed\u8fc7\u7a0b\u4e2d\uff0cFIN\u548cACK\u6807\u5fd7\u53d1\u6325\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002<\/strong>\u901a\u8fc7\u7406\u89e3TCP FIN ACK\u7684\u5de5\u4f5c\u539f\u7406\u4ee5\u53ca\u5b83\u5728\u7f51\u7edc\u5b89\u5168\u4e2d\u7684\u4f5c\u7528\uff0c\u53ef\u4ee5\u66f4\u597d\u5730\u62b5\u5fa1\u7f51\u7edc\u653b\u51fb\uff0c\u786e\u4fdd\u8fde\u63a5\u7684\u5b89\u5168\u5173\u95ed\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u672c\u6587\u4ecb\u7ecdTCP\u8fde\u63a5\u4e2d\u7684FIN\u548cACK\u6807\u5fd7\uff0c\u4ee5\u53ca\u5b83\u4eec\u5728\u7f51\u7edc\u901a\u4fe1\u4e2d\u7684\u91cd\u8981\u4f5c\u7528\u3002\u901a\u8fc7\u6df1\u5165\u4e86\u89e3TCPFINACK\uff0c\u60a8\u5c06\u66f4\u597d\u5730\u7406\u89e3\u6570\u636e\u4f20\u8f93\u4e2d\u7684\u5173\u95ed\u8fc7\u7a0b\u548c\u786e\u4fdd\u901a\u4fe1\u5b89\u5168\u6027\u7684\u91cd\u8981\u673a\u5236<\/p>\n","protected":false},"author":1,"featured_media":64183,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","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":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[36],"tags":[161],"class_list":["post-77525","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-tcp"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/77525"}],"collection":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/comments?post=77525"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/77525\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media\/64183"}],"wp:attachment":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media?parent=77525"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=77525"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=77525"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}