{"id":65454,"date":"2023-12-12T17:01:20","date_gmt":"2023-12-12T09:01:20","guid":{"rendered":"https:\/\/docs.pingcode.com\/?p=65454"},"modified":"2023-12-12T17:01:35","modified_gmt":"2023-12-12T09:01:35","slug":"tcp-%e4%b8%89%e6%ac%a1%e6%8f%a1%e6%89%8b%e5%8e%9f%e7%90%86%e6%98%af%e4%bb%80%e4%b9%88","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/65454.html","title":{"rendered":"TCP \u4e09\u6b21\u63e1\u624b\u539f\u7406\u662f\u4ec0\u4e48"},"content":{"rendered":"\n
\n

TCP \u4e09\u6b21\u63e1\u624b\u539f\u7406\uff1a\u9996\u5148\u5ba2\u6237\u7aef\u53d1\u9001\u4e00\u4e2aSYN\uff08\u540c\u6b65\uff09\u5305\u5230\u670d\u52a1\u5668\uff0c\u8868\u793a\u5ba2\u6237\u7aef\u5e0c\u671b\u5efa\u7acb\u8fde\u63a5\u3002\u670d\u52a1\u5668\u6536\u5230\u8fd9\u4e2a\u5305\u540e\uff0c\u56de\u590d\u4e00\u4e2aSYN\/ACK\uff08\u540c\u6b65\/\u786e\u8ba4\uff09\u5305\uff0c\u8868\u793a\u670d\u52a1\u5668\u63a5\u6536\u5230\u4e86\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\uff0c\u5e76\u51c6\u5907\u597d\u5efa\u7acb\u8fde\u63a5\u3002\u6700\u540e\uff0c\u5ba2\u6237\u7aef\u53d1\u9001\u4e00\u4e2aACK\uff08\u786e\u8ba4\uff09\u5305\uff0c\u8868\u793a\u5ba2\u6237\u7aef\u4e5f\u786e\u8ba4\u8fde\u63a5\u5df2\u5efa\u7acb\u3002<\/p>\n<\/blockquote>\n\n\n\n

1. TCP\u4e09\u6b21\u63e1\u624b\u7684\u539f\u7406<\/h2>\n\n\n\n

\u5728TCP\u4e09\u6b21\u63e1\u624b\u4e2d\uff0c\u9996\u5148\u5ba2\u6237\u7aef\u53d1\u9001\u4e00\u4e2aSYN\uff08\u540c\u6b65\uff09\u5305\u5230\u670d\u52a1\u5668\uff0c\u8868\u793a\u5ba2\u6237\u7aef\u5e0c\u671b\u5efa\u7acb\u8fde\u63a5\u3002\u670d\u52a1\u5668\u6536\u5230\u8fd9\u4e2a\u5305\u540e\uff0c\u56de\u590d\u4e00\u4e2aSYN\/ACK\uff08\u540c\u6b65\/\u786e\u8ba4\uff09\u5305\uff0c\u8868\u793a\u670d\u52a1\u5668\u63a5\u6536\u5230\u4e86\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\uff0c\u5e76\u51c6\u5907\u597d\u5efa\u7acb\u8fde\u63a5\u3002\u6700\u540e\uff0c\u5ba2\u6237\u7aef\u53d1\u9001\u4e00\u4e2aACK\uff08\u786e\u8ba4\uff09\u5305\uff0c\u8868\u793a\u5ba2\u6237\u7aef\u4e5f\u786e\u8ba4\u8fde\u63a5\u5df2\u5efa\u7acb\u3002<\/p>\n\n\n\n

\u8fd9\u4e2a\u8fc7\u7a0b\u7684\u539f\u7406\u5728\u4e8e\u786e\u4fdd\u901a\u4fe1\u7684\u53cc\u65b9\u90fd\u80fd\u591f\u6b63\u5e38\u4ea4\u6362\u4fe1\u606f\uff0c\u907f\u514d\u6570\u636e\u7684\u4e22\u5931\u548c\u6df7\u4e71\u3002\u901a\u8fc7\u4e09\u6b21\u63e1\u624b\uff0c\u53cc\u65b9\u80fd\u591f\u786e\u8ba4\u5f7c\u6b64\u90fd\u5904\u4e8e\u53ef\u901a\u4fe1\u7684\u72b6\u6001\uff0c\u5efa\u7acb\u4e86\u53ef\u9760\u7684\u8fde\u63a5\u3002<\/p>\n\n\n\n

2. TCP\u4e09\u6b21\u63e1\u624b\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n\n\n\n

TCP\u4e09\u6b21\u63e1\u624b\u662f\u5efa\u7acbTCP\u8fde\u63a5\u7684\u8fc7\u7a0b\uff0c\u786e\u4fdd\u901a\u4fe1\u7684\u53cc\u65b9\u90fd\u80fd\u591f\u6b63\u5e38\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\u3002\u8be5\u8fc7\u7a0b\u6d89\u53ca\u5230\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u4e09\u4e2a\u6b65\u9aa4\uff0c\u4ee5\u786e\u4fdd\u53cc\u65b9\u90fd\u540c\u610f\u5efa\u7acb\u8fde\u63a5\u3002<\/p>\n\n\n\n

3. TCP\u4e09\u6b21\u63e1\u624b\u7684\u6b65\u9aa4<\/h2>\n\n\n\n

\u7b2c\u4e00\u6b65\uff1a\u5ba2\u6237\u7aef\u53d1\u9001SYN\u5305<\/strong><\/p>\n\n\n\n

\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u5668\u53d1\u9001\u4e00\u4e2aSYN\u5305\uff0c\u5176\u4e2d\u5305\u542b\u5ba2\u6237\u7aef\u7684\u521d\u59cb\u5316\u5e8f\u5217\u53f7\uff08ISN\uff09\u548c\u8bf7\u6c42\u5efa\u7acb\u8fde\u63a5\u7684\u6807\u5fd7\u3002<\/p>\n\n\n\n

\u7b2c\u4e8c\u6b65\uff1a\u670d\u52a1\u5668\u56de\u590dSYN\/ACK\u5305<\/strong><\/p>\n\n\n\n

\u670d\u52a1\u5668\u6536\u5230\u5ba2\u6237\u7aef\u7684SYN\u5305\u540e\uff0c\u56de\u590d\u4e00\u4e2aSYN\/ACK\u5305\uff0c\u5176\u4e2d\u5305\u542b\u670d\u52a1\u5668\u7684\u521d\u59cb\u5316\u5e8f\u5217\u53f7\u548c\u786e\u8ba4\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u7684\u6807\u5fd7\u3002<\/p>\n\n\n\n

\u7b2c\u4e09\u6b65\uff1a\u5ba2\u6237\u7aef\u53d1\u9001ACK\u5305<\/strong><\/p>\n\n\n\n

\u5ba2\u6237\u7aef\u6536\u5230\u670d\u52a1\u5668\u7684SYN\/ACK\u5305\u540e\uff0c\u53d1\u9001\u4e00\u4e2aACK\u5305\u7ed9\u670d\u52a1\u5668\uff0c\u8868\u793a\u5ba2\u6237\u7aef\u4e5f\u786e\u8ba4\u8fde\u63a5\u5df2\u7ecf\u5efa\u7acb\u3002<\/p>\n\n\n\n

4. TCP\u4e09\u6b21\u63e1\u624b\u7684\u4f5c\u7528<\/h2>\n\n\n\n

TCP\u4e09\u6b21\u63e1\u624b\u7684\u4e3b\u8981\u4f5c\u7528\u662f\u786e\u4fdd\u53cc\u65b9\u90fd\u80fd\u591f\u6b63\u5e38\u5efa\u7acb\u8fde\u63a5\uff0c\u907f\u514d\u56e0\u7f51\u7edc\u5ef6\u8fdf\u6216\u5176\u4ed6\u539f\u56e0\u5bfc\u81f4\u901a\u4fe1\u5931\u8d25\u3002\u901a\u8fc7\u8fd9\u4e2a\u8fc7\u7a0b\uff0c\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u90fd\u80fd\u591f\u540c\u6b65\u5f7c\u6b64\u7684\u72b6\u6001\uff0c\u5efa\u7acb\u8d77\u53ef\u9760\u7684\u901a\u4fe1\u901a\u9053\u3002<\/p>\n\n\n\n

5. TCP\u4e09\u6b21\u63e1\u624b\u7684\u5c40\u9650\u6027<\/h2>\n\n\n\n

\u5c3d\u7ba1TCP\u4e09\u6b21\u63e1\u624b\u5728\u786e\u4fdd\u8fde\u63a5\u7684\u53ef\u9760\u6027\u65b9\u9762\u8868\u73b0\u51fa\u8272\uff0c\u4f46\u4e5f\u5b58\u5728\u4e00\u4e9b\u5c40\u9650\u6027\u3002\u4f8b\u5982\uff0c\u5728\u67d0\u4e9b\u7f51\u7edc\u6761\u4ef6\u4e0b\uff0c\u53ef\u80fd\u4f1a\u53d1\u751f\u5ef6\u8fdf\u6216\u8d85\u65f6\uff0c\u5bfc\u81f4\u63e1\u624b\u8fc7\u7a0b\u8017\u65f6\u8f83\u957f\u3002\u6b64\u5916\uff0c\u5728\u9762\u5bf9\u5927\u91cf\u77ed\u8fde\u63a5\u7684\u60c5\u51b5\u4e0b\uff0c\u4e09\u6b21\u63e1\u624b\u53ef\u80fd\u4f1a\u5e26\u6765\u4e00\u5b9a\u7684\u6027\u80fd\u5f00\u9500\u3002\u56e0\u6b64\uff0c\u5728\u4e00\u4e9b\u7279\u6b8a\u573a\u666f\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u8003\u8651\u5176\u4ed6\u8fde\u63a5\u5efa\u7acb\u7684\u65b9\u5f0f\u3002<\/p>\n\n\n\n

\"TCP<\/p>\n\n\n\n

\u5e38\u89c1\u95ee\u7b54\uff1a<\/strong><\/p>\n\n\n\n

    \n
  • \u95ee\uff1aTCP\u4e09\u6b21\u63e1\u624b\u7684\u539f\u7406\u662f\u4ec0\u4e48\uff1f<\/li>\n\n\n\n
  • \u7b54\uff1aTCP\u4e09\u6b21\u63e1\u624b\u7684\u539f\u7406\u662f\u901a\u8fc7\u4e09\u4e2a\u6b65\u9aa4\u786e\u4fdd\u53cc\u65b9\u90fd\u5177\u5907\u901a\u4fe1\u80fd\u529b\u548c\u613f\u671b\u3002\u9996\u5148\uff0c\u5ba2\u6237\u7aef\u53d1\u9001\u540c\u6b65\uff08SYN\uff09\u8bf7\u6c42\u8868\u793a\u5efa\u7acb\u8fde\u63a5\u7684\u613f\u671b\uff1b\u670d\u52a1\u5668\u6536\u5230\u540e\u56de\u590d\u540c\u6b65-\u5e94\u7b54\uff08SYN-ACK\uff09\u6d88\u606f\u8868\u793a\u63a5\u53d7\u8fde\u63a5\u8bf7\u6c42\uff1b\u6700\u540e\uff0c\u5ba2\u6237\u7aef\u53d1\u9001\u786e\u8ba4\uff08ACK\uff09\u6d88\u606f\uff0c\u786e\u4fdd\u8fde\u63a5\u6210\u529f\u5efa\u7acb\u3002<\/li>\n<\/ul>\n\n\n\n
      \n
    • \u95ee\uff1a\u4e3a\u4ec0\u4e48TCP\u63e1\u624b\u9700\u8981\u4e09\u6b21\u800c\u4e0d\u662f\u4e24\u6b21\uff1f<\/li>\n\n\n\n
    • \u7b54\uff1aTCP\u63e1\u624b\u9700\u8981\u4e09\u6b21\u662f\u4e3a\u4e86\u89e3\u51b3\u901a\u4fe1\u4e2d\u7684\u4e0d\u786e\u5b9a\u6027\u3002\u7b2c\u4e00\u6b21\u63e1\u624b\u8868\u660e\u5ba2\u6237\u7aef\u613f\u610f\u5efa\u7acb\u8fde\u63a5\uff0c\u7b2c\u4e8c\u6b21\u63e1\u624b\u670d\u52a1\u5668\u786e\u8ba4\uff0c\u5e76\u8868\u660e\u81ea\u5df1\u4e5f\u613f\u610f\u5efa\u7acb\u8fde\u63a5\u3002\u7136\u800c\uff0c\u5728\u8fd9\u4e24\u6b21\u63e1\u624b\u4e2d\uff0c\u670d\u52a1\u5668\u65e0\u6cd5\u786e\u8ba4\u5ba2\u6237\u7aef\u662f\u5426\u6536\u5230\u3002\u7b2c\u4e09\u6b21\u63e1\u624b\u662f\u5ba2\u6237\u7aef\u5bf9\u670d\u52a1\u5668\u7684\u786e\u8ba4\uff0c\u786e\u4fdd\u53cc\u65b9\u90fd\u77e5\u9053\u8fde\u63a5\u5df2\u7ecf\u5efa\u7acb\u3002\u8fd9\u6837\u8bbe\u8ba1\u53ef\u4ee5\u907f\u514d\u4e0d\u786e\u5b9a\u6027\uff0c\u786e\u4fdd\u8fde\u63a5\u7684\u53ef\u9760\u6027\u3002<\/li>\n<\/ul>\n\n\n\n
        \n
      • \u95ee\uff1aTCP\u63e1\u624b\u8fc7\u7a0b\u4e2d\u53ef\u80fd\u51fa\u73b0\u7684\u95ee\u9898\u6709\u54ea\u4e9b\uff1f<\/li>\n\n\n\n
      • \u7b54\uff1a\u5728TCP\u63e1\u624b\u8fc7\u7a0b\u4e2d\u53ef\u80fd\u51fa\u73b0\u7684\u95ee\u9898\u5305\u62ec\u8d85\u65f6\u548c\u91cd\u4f20\u3001\u534a\u8fde\u63a5\u72b6\u6001\u4ee5\u53ca\u63e1\u624b\u98ce\u66b4\u3002\u8d85\u65f6\u548c\u91cd\u4f20\u53ef\u80fd\u7531\u4e8e\u7f51\u7edc\u4e22\u5305\u6216\u5ef6\u8fdf\u5bfc\u81f4\uff0c\u534a\u8fde\u63a5\u72b6\u6001\u53ef\u80fd\u7531\u4e8e\u63e1\u624b\u4e2d\u65ad\u6216\u5931\u8d25\u5bfc\u81f4\uff0c\u63e1\u624b\u98ce\u66b4\u53ef\u80fd\u7531\u4e8e\u77ed\u65f6\u95f4\u5185\u5927\u91cf\u8fde\u63a5\u8bf7\u6c42\u800c\u5bfc\u81f4\u670d\u52a1\u5668\u8d44\u6e90\u8017\u5c3d\u3002\u8fd9\u4e9b\u95ee\u9898\u53ef\u80fd\u5f71\u54cd\u5230\u8fde\u63a5\u7684\u6b63\u5e38\u5efa\u7acb\uff0c\u56e0\u6b64TCP\u7684\u5b9e\u73b0\u9700\u8981\u8003\u8651\u5982\u4f55\u5904\u7406\u8fd9\u4e9b\u5f02\u5e38\u60c5\u51b5\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"TCP \u4e09\u6b21\u63e1\u624b\u539f\u7406\uff1a\u9996\u5148\u5ba2\u6237\u7aef\u53d1\u9001\u4e00\u4e2aSYN\uff08\u540c\u6b65\uff09\u5305\u5230\u670d\u52a1\u5668\uff0c\u8868\u793a\u5ba2\u6237\u7aef\u5e0c\u671b\u5efa\u7acb\u8fde\u63a5\u3002\u670d\u52a1\u5668\u6536\u5230\u8fd9\u4e2a\u5305\u540e\uff0c […]","protected":false},"author":4,"featured_media":65459,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[3729,3730,3731],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/65454"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=65454"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/65454\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/65459"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=65454"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=65454"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=65454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}