{"id":4054,"date":"2024-03-30T01:37:26","date_gmt":"2024-03-29T17:37:26","guid":{"rendered":"http:\/\/www.ccwifi.cc\/blogs\/?p=4054"},"modified":"2024-03-30T01:37:26","modified_gmt":"2024-03-29T17:37:26","slug":"tcp%e5%8d%8f%e8%ae%ae%e7%9a%84%e4%b8%89%e6%ac%a1%e6%8f%a1%e6%89%8b%e5%bf%83%e6%b3%95%e8%bd%ac%e8%bd%bd6185","status":"publish","type":"post","link":"https:\/\/www.ccwifi.cc\/blogs\/2024\/03\/30\/tcp%e5%8d%8f%e8%ae%ae%e7%9a%84%e4%b8%89%e6%ac%a1%e6%8f%a1%e6%89%8b%e5%bf%83%e6%b3%95%e8%bd%ac%e8%bd%bd6185\/","title":{"rendered":"TCP\u534f\u8bae\u7684\u4e09\u6b21\u63e1\u624b\u5fc3\u6cd5\u3010\u8f6c\u8f7d\u3011"},"content":{"rendered":"<div>\n<p>\u5728\u7ebfwifi\u8dd1\u5305 \u91d1\u521a\u5305\u8dd1\u5305 cap\u8dd1\u5305 hccapx ewsa\u5728\u7ebf \u5c31\u6765 <strong><a href=\"https:\/\/ccwifi.cc\" target=\"_blank\" rel=\"noopener\">\u63e1\u624b\u5305\u8dd1\u5305<\/a><\/strong><\/p>\n<p>\u5404\u4f4d\u597d \u53c8\u89c1\u9762\u4e86 \u6211\u662f\u66f9\u64cd \u4eca\u5929\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7\u65b0\u7684\u6559\u7a0b<\/p>\n<p>\u5e0c\u671b\u5404\u4f4d\u7ec6\u5fc3\u5b66\u4e60 \u4f4e\u8c03\u7528\u7f51<\/p>\n<\/div>\n<p><img decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/03\/1711733845792_0.jpg\" alt=\"\u63e1\u624b\"><\/p>\n<p>\u5728\u4e00\u4e2a\u9ed1\u591c\u4e2d\uff0c\u4e00\u4e2a\u4eba\u72ec\u81ea\u5446\u5728\u8fd1\u5343\u5e73\u65b9\u82f1\u5c3a\u7684\u6559\u5ba4\u91cc\u3002\u673a\u68b0\u952e\u76d8\u7684\u6572\u51fb\u58f0\u548c\u7a7a\u8c03\u7535\u6247\u7684\u58f0\u97f3\u4ea4\u7ec7\u5728\u4e00\u8d77\uff0c\u8425\u9020\u51fa\u4e00\u79cd\u53ef\u6015\u7684\u5b81\u9759\u3002\u7136\u800c\uff0c\u9ed1\u591c\u672c\u8eab\u66f4\u52a0\u53ef\u6015\u3002\u8fd9\u4e2a\u4eba\u88ab\u79f0\u4e3aTCP\uff0c\u4ed6\u4e13\u6ce8\u5730\u6572\u51fb\u7740\u952e\u76d8\uff0c\u6559\u5ba4\u91cc\u53ea\u6709\u5fae\u5f31\u7684\u6708\u5149\u548c\u5c4f\u5e55\u7684\u5149\u4eae\u3002TCP\u56de\u60f3\u8d77\u767d\u5929\uff0c\u4ed6\u7684\u540c\u5b66UDP\u5728\u767d\u5e95\u9ed1\u5b57\u7684\u5c4f\u5e55\u4e0a\u4ee5\u96be\u4ee5\u60f3\u8c61\u7684\u901f\u5ea6\u7f16\u5199\u4ee3\u7801\u3002\u4ed6\u9eef\u7136\u5730\u8bf4\u9053\uff1a\u201c\u5728\u8fd9\u4e2a\u540d\u4e3a\u4f20\u8f93\u5c42\u7684\u6559\u5ba4\u91cc\uff0c\u6211\u7684\u8fde\u63a5\u6548\u7387\u6bd4\u4e0d\u4e0aUDP\u3002\u201d TCP\u4e3a\u4e86\u63d0\u9ad8\u81ea\u5df1\u7684\u8fde\u63a5\u6548\u7387\uff0c\u62fc\u547d\u6572\u51fb\u7740\u4ee3\u7801\u3002\u7136\u800c\uff0c\u8fdb\u5c55\u5e76\u4e0d\u660e\u663e\u3002\u4ed6\u7684\u673a\u68b0\u952e\u76d8\u56e0\u4e3a\u957f\u65f6\u95f4\u9ad8\u5f3a\u5ea6\u7684\u4f7f\u7528\u5df2\u7ecf\u574f\u4e86\u4e09\u6b21\uff0c\u8d77\u521d\u4ed6\u8fd8\u6562\u53bb\u54a8\u8be2\u90e8\u95e8\u7684\u8001\u5e08\u6362\u65b0\u7684\uff0c\u4f46\u7b2c\u4e8c\u6b21\u4ed6\u4e0d\u6562\u4e86\u3002\u4ed6\u53bb\u7adf\u4e1c\u90a3\u91cc\u4e70\u4e86\u4e00\u4e2a\uff0c\u7b2c\u4e09\u6b21\u5219\u4e70\u4e86\u4e2a\u54b8\u9c7c\u7684\u3002\u7a81\u7136\uff0c\u4ed6\u505c\u4e0b\u4e86\u624b\u3002\u5c4f\u5e55\u4e0a\u7684\u5b57\u7b26\u518d\u4e5f\u6ca1\u6709\u52a8\u8fc7\uff0c\u6559\u5ba4\u91cc\u53ea\u5269\u4e0b\u7a7a\u8c03\u7535\u6247\u7684\u58f0\u97f3\u3002\u201c\u4f60\u4eec\u6765\u4e86\u3002\u201d TCP\u8bf4\u51fa\u8fd9\u53e5\u8bdd\u65f6\u6ca1\u6709\u52a8\u4e00\u4e0b\uff0c\u58f0\u97f3\u4f4e\u5f97\u53ea\u6709\u4ed6\u81ea\u5df1\u80fd\u542c\u89c1\u3002\u201c\u662f\u7684\uff0c\u6211\u4eec\u6765\u4e86\u3002\u201d \u4e00\u4e2a\u58f0\u97f3\u4ece\u6559\u5ba4\u540e\u9762\u4f20\u6765\uff0c\u7b2c\u56db\u6392\u548c\u7b2c\u4e09\u6392\u591a\u51fa\u4e86\u4e24\u4e2a\u4eba\uff0c\u4ed6\u4eec\u51e0\u4e4e\u50cf\u9ed1\u5f71\u4e00\u6837\u878d\u5165\u4e86\u4eba\u4f53\u5de5\u5b66\u6905\u5b50\u4e2d\u3002\u201c\u4f60\u4eec\u60f3\u8981\u4ec0\u4e48\uff1f\u201d \u201c\u4f60\u4eec\u77e5\u9053\u6211\u4eec\u60f3\u8981\u4ec0\u4e48\u3002\u201d \u201c\u4f60\u4eec\u77e5\u9053\u6211\u4e0d\u4f1a\u7ed9\u4f60\u4eec\u3002\u201d \u201c\u6211\u4eec\u77e5\u9053\u4f60\u4e0d\u4f1a\u7ed9\uff0c\u4f46\u6211\u4eec\u8fd8\u662f\u8981\u3002\u201d \u201c\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\uff0c\u65e2\u7136\u4f60\u4eec\u60f3\u8981\uff0c\u5c31\u8fc7\u6765\u62ff\u5427\uff0c\u4f60\u4eec\u65e0\u975e\u662f\u60f3\u8981\u6211\u7684\u4e09\u6b21\u63e1\u624b\u5fc3\u6cd5\u3002\u201d TCP\u6de1\u6de1\u5730\u8bf4\u9053\u3002\u4ed6\u8111\u6d77\u4e2d\u56de\u5fc6\u8d77\u4e86\u4e09\u6b21\u63e1\u624b\u5fc3\u6cd5\u3002\u4e09\u6b21\u63e1\u624b\u662f\u6e90\u81ea\u4f20\u8f93\u5c42\u6559\u5ba4\u7684TCP\u534f\u8bae\u5fc3\u6cd5\uff0c\u901a\u8fc7\u5b83\u53ef\u4ee5\u5efa\u7acb\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u4e4b\u95f4\u7684\u53ef\u9760\u8fde\u63a5\uff0c\u9700\u8981\u53d1\u9001\u4e09\u4e2a\u6570\u636e\u5305\uff0c\u5e76\u6d89\u53ca\u516d\u4e2a\u6807\u5fd7\u4f4d\uff0c\u5206\u522b\u662fSYN\uff08\u5efa\u7acb\u8fde\u63a5\uff09\u3001ACK\uff08\u786e\u8ba4\uff09\u3001PSH\uff08\u4f20\u9001\uff09\u3001FIN\uff08\u7ed3\u675f\uff09\u3001RST\uff08\u91cd\u7f6e\uff09\u548cURG\uff08\u7d27\u6025\uff09\u3002\u6b64\u5916\uff0c\u8fd8\u6709\u5e8f\u53f7\u8f85\u52a9\uff0c\u5f53TCP\u6570\u636e\u91cf\u8fc7\u5927\u65f6\uff0c\u9700\u8981\u8fdb\u884c\u5206\u6bb5\u4f20\u8f93\uff0c\u5e8f\u53f7\u5b57\u6bb5\u7528\u4e8e\u91cd\u65b0\u7ec4\u5408TCP\u6570\u636e\u3002\u5e8f\u53f7\u5b57\u6bb5\u6307\u7684\u662f\u53d1\u9001\u7684\u7b2c\u4e00\u4e2a\u5b57\u8282\u7684\u5e8f\u53f7\u3002\u7b2c\u4e00\u6b21\u63e1\u624b\uff1a\u5ba2\u6237\u7aef\u5c06SYN\u7f6e\u4e3a1\uff0c\u968f\u673a\u751f\u6210\u4e00\u4e2a\u5e8f\u53f7seq=j\uff0c\u5e76\u5c06\u6570\u636e\u5305\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7aef\uff0c\u5ba2\u6237\u7aef\u8fdb\u5165SYN<em>SEND\u72b6\u6001\uff0c\u7b49\u5f85\u670d\u52a1\u5668\u7aef\u786e\u8ba4\u3002\u7b2c\u4e8c\u6b21\u63e1\u624b\uff1a\u670d\u52a1\u5668\u7aef\u6536\u5230\u6570\u636e\u5305\uff0c\u6839\u636e\u6807\u5fd7\u4f4dSYN=1\u5224\u65ad\u5ba2\u6237\u7aef\u5efa\u7acb\u8fde\u63a5\u7684\u610f\u56fe\uff0c\u670d\u52a1\u5668\u7aef\u5c06SYN\u548cACK\u90fd\u7f6e\u4e3a1\uff0c\u5c06ack=j+1\uff0c\u968f\u673a\u751f\u6210\u4e00\u4e2a\u5e8f\u53f7seq=k\uff0c\u5e76\u5c06\u6570\u636e\u5305\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\u4ee5\u786e\u8ba4\u8fde\u63a5\u8bf7\u6c42\uff0c\u670d\u52a1\u5668\u7aef\u8fdb\u5165SYN<\/em>RCVD\u72b6\u6001\u3002<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.ccwifi.cc\/blogs\/wp-content\/uploads\/2024\/03\/1711733845792_1.png\" alt=\"\u63e1\u624b\"><\/p>\n<p>\u7b2c\u4e09\u6b21\u63e1\u624b\uff1a\u5ba2\u6237\u7aef\u6536\u5230\u786e\u8ba4\u540e\uff0c\u68c0\u67e5ack\u662f\u5426\u4e3ak+1\uff0cACK\u662f\u5426\u4e3a1\u3002\u5982\u679c\u6b63\u786e\uff0c\u5219\u5c06ACK\u7f6e\u4e3a1\uff0cack=y+1\uff0c\u5e76\u5c06\u6570\u636e\u5305\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7aef\u3002\u670d\u52a1\u5668\u7aef\u68c0\u67e5ack\u662f\u5426\u4e3ak+1\uff0cACK\u662f\u5426\u4e3a1\u3002\u5982\u679c\u6b63\u786e\uff0c\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u5c31\u53ef\u4ee5\u5efa\u7acb\u8fde\u63a5\u4e86\u3002TCP\u60f3\u5230\u8fd9\u91cc\uff0c\u51dd\u89c6\u7740ThinkPad\u7684\u5c4f\u5e55\u3002\u53c8\u662f\u4e00\u7247\u5bc2\u9759\uff0c\u7a7a\u8c03\u7535\u6247\u7684\u58f0\u97f3\u4f3c\u4e4e\u66f4\u52a0\u660e\u663e\u4e86\u3002\u9ed1\u5f71\u72b9\u8c6b\u4e86\u4e00\u4e0b\uff0cTCP\u751a\u81f3\u6ca1\u6709\u8f6c\u8fc7\u5934\u53bb\u3002\u201c\u4e0d\u53ef\u80fd\uff01\u201d\u4ed6\u5927\u58f0\u8bf4\u9053\u3002\u5728\u8fd9\u4e2a\u4e16\u754c\u4e0a\uff0c\u53ea\u6709\u4e24\u79cd\u4eba\u80cc\u53db\u4f60\uff0c\u4e00\u4e2a\u662f\u4e0d\u61c2\u6b66\u529f\u7684\u50bb\u74dc\uff0c\u4e00\u4e2a\u662f\u4e0d\u5c51\u4e8e\u4f60\u7684\u9ad8\u624b\u3002TCP\u7edd\u5bf9\u4e0d\u662f\u50bb\u74dc\uff0c\u9ed1\u5f71\u9690\u7ea6\u770b\u5230TCP\u768413\u5bf8\u5c4f\u5e55\u4e0a\u660e\u660e\u5c31\u662f\u7f16\u7a0b\u754c\u5931\u4f20\u591a\u5e74\u7684\u7edd\u5b66\u5fc3\u6cd5\u3002\u6c5f\u6e56\u4e0a\u5f88\u591a\u4eba\u90fd\u77e5\u9053Socket\uff0c\u4f46\u662f\u5931\u4f20\u5df2\u4e45\u7684\u56db\u6b21\u5206\u624b\u5374\u53ea\u6709\u5c11\u6570\u4eba\u77e5\u9053\u3002\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u60ca\u8bb6\u5730\u8bf4\u9053\uff1a\u201c\u96be\u9053\u4f60\u5df2\u7ecf\u638c\u63e1\u4e86\u56db\u6b21\u5206\u624b\u5fc3\u6cd5\uff1f\u201d\u56db\u6b21\u5206\u624b\u5fc3\u6cd5\u662f\u6307\u5728\u7ec8\u6b62\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u65f6\uff0c\u9700\u8981\u53d1\u9001\u56db\u4e2a\u6570\u636e\u5305\u6765\u786e\u8ba4\u8fde\u63a5\u7684\u65ad\u5f00\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u53ef\u4ee5\u7531\u670d\u52a1\u5668\u7aef\u6216\u5ba2\u6237\u7aef\u7684\u4efb\u610f\u4e00\u65b9\u6765\u5b9e\u73b0\u3002\u7531\u4e8eTCP\u8fde\u63a5\u662f\u5168\u53cc\u5de5\u7684\uff0c\u6240\u4ee5\u6bcf\u4e2a\u65b9\u5411\u90fd\u5fc5\u987b\u5355\u72ec\u5173\u95ed\u3002\u5f53\u4e00\u65b9\u5b8c\u6210\u6570\u636e\u53d1\u9001\u4efb\u52a1\u540e\uff0c\u53d1\u9001\u4e00\u4e2aFIN\u6765\u7ec8\u6b62\u8be5\u65b9\u5411\u7684\u8fde\u63a5\u3002\u7b2c\u4e00\u6b21\u5206\u624b\uff1a\u5ba2\u6237\u7aef\u53d1\u9001\u4e00\u4e2aFIN\u6765\u5173\u95ed\u5ba2\u6237\u7aef\u5230\u670d\u52a1\u5668\u7aef\u7684\u8fde\u63a5\uff0c\u6b64\u65f6\u5ba2\u6237\u7aef\u8fdb\u5165FIN<em>WAIT<\/em>1\u72b6\u6001\u3002\u7b2c\u4e8c\u6b21\u5206\u624b\uff1a\u670d\u52a1\u5668\u7aef\u6536\u5230FIN\u540e\uff0c\u53d1\u9001\u4e00\u4e2aACK\u7ed9\u5ba2\u6237\u7aef\uff0c\u786e\u8ba4\u5e8f\u53f7\u4e3a\u6536\u5230\u7684\u5e8f\u53f7\u52a01\u3002\u670d\u52a1\u5668\u7aef\u8fdb\u5165CLOSE<em>WAIT\u72b6\u6001\u3002\u7b2c\u4e09\u6b21\u5206\u624b\uff1a\u670d\u52a1\u5668\u7aef\u53d1\u9001\u4e00\u4e2aFIN\u6765\u5173\u95ed\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u4e4b\u95f4\u7684\u8fde\u63a5\uff0c\u670d\u52a1\u5668\u7aef\u8fdb\u5165LAST<\/em>ACK\u72b6\u6001\u3002\u7b2c\u56db\u6b21\u5206\u624b\uff1a\u5ba2\u6237\u7aef\u6536\u5230FIN\u540e\uff0c\u5ba2\u6237\u7aef\u8fdb\u5165TIME_WAIT\u72b6\u6001\uff0c\u7136\u540e\u53d1\u9001\u4e00\u4e2aACK\u7ed9\u670d\u52a1\u5668\u7aef\uff0c\u786e\u8ba4\u5e8f\u53f7\u4e3a\u6536\u5230\u7684\u5e8f\u53f7\u52a01\u3002\u670d\u52a1\u5668\u7aef\u8fdb\u5165CLOSE\u72b6\u6001\u3002<\/p>\n<p><!-- \u6587\u7ae0\u6765\u6e90:https:\/\/zhuanlan.zhihu.com\/p\/28276726 --><\/p>\n<p>TCP\u7ec8\u4e8e\u8f6c\u8fc7\u5934\u6765\uff0c\u4f46\u53ea\u80fd\u770b\u5230\u9ed1\u5f71\u7684\u4fa7\u9762\u3002\u4ed6\u7f13\u7f13\u5730\u8bf4\u9053\uff1a\u201c\u4f60\u4eec\u8fd9\u4e48\u60f3\u8981\u4e09\u6b21\u63e1\u624b\uff0c\u90a3\u4e48\u6211\u5c31\u544a\u8bc9\u4f60\u4eec\uff0c\u5176\u5b9e\u5f88\u7b80\u5355\uff0c\u542c\u597d\u4e86\u3002\u201d\u201c\u4f60\u4eec\u5728\u62c5\u5fc3\u4ec0\u4e48\uff1f\u201d\u201c\u770b\u4f60\u4eec\u6709\u4ec0\u4e48\u4e86\u4e0d\u8d77\u7684\u3002\u201d\u201c\u6765\uff0c\u6211\u4eec\u6765\u804a\u804a\u3002\u201d\u9ed1\u5f71\u7684\u8eab\u4f53\u4e00\u9707\uff0c\u4f3c\u4e4e\u660e\u767d\u4e86\u4ec0\u4e48\u2026\u2026\u5168\u6587\u5b8c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63e1\u624bTCP\u534f\u8bae\u7684\u4e09\u6b21\u63e1\u624b\u5fc3\u6cd5\u3010\u8f6c\u8f7d\u3011\u9ed1\u591c\u3002\u8fd1\u5343\u5e73\u65b9\u7684\u6559\u5ba4\u91cc\u8fd8\u6709\u4e00\u4e2a\u4eba\u5728\uff0c\u567c\u567c\u556a\u556a\u7684\u673a\u68b0\u952e\u76d8\u7684\u58f0\u97f3\u548c\u7a7a\u8c03\u7535\u6247\u7684\u51fa\u98ce\u53e3\u4ea4\u7ec7\u5728\u4e00\u8d77\uff0c\u5b89\u9759\u7684\u53ef\u6015\u3002\u4f46\u9ed1\u591c\u66f4\u53ef\u6015\uff0c\u53ebTCP\u7684\u7537\u4eba\u6572\u6253\u7740\u952e\u76d8\uff0c\u5168\u573a\u53ea\u6709\u5fae\u5fae\u7684\u6708\u5149\u548c\u5c4f\u5e55\u7684\u5149\u7ebf\u3002TCP\u60f3\u8d77\uff0c\u5728\u767d\u5929<\/p>\n","protected":false},"author":1,"featured_media":4055,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"topic":[],"class_list":["post-4054","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-1"],"_links":{"self":[{"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/posts\/4054","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/comments?post=4054"}],"version-history":[{"count":0,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/posts\/4054\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/media\/4055"}],"wp:attachment":[{"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/media?parent=4054"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/categories?post=4054"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/tags?post=4054"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/topic?post=4054"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}