{"id":54445,"date":"2024-10-09T19:23:15","date_gmt":"2024-10-09T11:23:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/54445\/"},"modified":"2024-10-09T19:23:15","modified_gmt":"2024-10-09T11:23:15","slug":"%e4%bc%ba%e6%9c%8d%e5%99%a8-udp-%e7%ab%af%e5%8f%a3%e5%8d%a0%e7%94%a8%e5%b9%be%e5%8d%83%e5%80%8b%e7%9a%84%e8%a7%a3%e6%b1%ba%e8%be%a6%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/54445\/","title":{"rendered":"\u4f3a\u670d\u5668 UDP \u7aef\u53e3\u5360\u7528\u5e7e\u5343\u500b\u7684\u89e3\u6c7a\u8fa6\u6cd5"},"content":{"rendered":"<h1 id=\"%e4%bc%ba%e6%9c%8d%e5%99%a8-udp-%e7%ab%af%e5%8f%a3%e5%8d%a0%e7%94%a8%e5%b9%be%e5%8d%83%e5%80%8b%e7%9a%84%e8%a7%a3%e6%b1%ba%e8%be%a6%e6%b3%95-LrmDEnNCiq\">\u4f3a\u670d\u5668 UDP 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id=\"udp%e7%ab%af%e5%8f%a3%e5%8d%a0%e7%94%a8%e7%9a%84%e5%8e%9f%e5%9b%a0-LrmDEnNCiq\">UDP\u7aef\u53e3\u5360\u7528\u7684\u539f\u56e0<\/h2>\n<p>UDP\u7aef\u53e3\u5360\u7528\u7684\u539f\u56e0\u4e3b\u8981\u6709\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6d41\u91cf\u61c9\u7528\uff1a<\/strong>\u67d0\u4e9b\u61c9\u7528\u7a0b\u5e8f\uff0c\u5982\u8996\u983b\u6703\u8b70\u548c\u5728\u7dda\u904a\u6232\uff0c\u53ef\u80fd\u6703\u540c\u6642\u4f7f\u7528\u5927\u91cf\u7684UDP\u7aef\u53e3\uff0c\u5c0e\u81f4\u7aef\u53e3\u8cc7\u6e90\u7684\u8017\u76e1\u3002<\/li>\n<li><strong>\u4e0d\u7576\u914d\u7f6e\uff1a<\/strong>\u4f3a\u670d\u5668\u7684\u7db2\u7d61\u914d\u7f6e\u4e0d\u7576\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u7aef\u53e3\u91cd\u8907\u4f7f\u7528\u6216\u4e0d\u5fc5\u8981\u7684\u7aef\u53e3\u958b\u653e\u3002<\/li>\n<li><strong>\u60e1\u610f\u653b\u64ca\uff1a<\/strong>UDP\u6d2a\u6c34\u653b\u64ca\u662f\u4e00\u7a2e\u5e38\u898b\u7684DDoS\u653b\u64ca\u5f62\u5f0f\uff0c\u653b\u64ca\u8005\u901a\u904e\u5411\u4f3a\u670d\u5668\u767c\u9001\u5927\u91cf\u7684UDP\u6578\u64da\u5305\u4f86\u5360\u7528\u7aef\u53e3\uff0c\u5f9e\u800c\u4f7f\u4f3a\u670d\u5668\u7121\u6cd5\u6b63\u5e38\u904b\u884c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%baudp%e7%ab%af%e5%8f%a3%e5%8d%a0%e7%94%a8%e7%9a%84%e8%be%a6%e6%b3%95-LrmDEnNCiq\">\u89e3\u6c7aUDP\u7aef\u53e3\u5360\u7528\u7684\u8fa6\u6cd5<\/h2>\n<p>\u91dd\u5c0dUDP\u7aef\u53e3\u5360\u7528\u7684\u554f\u984c\uff0c\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u7a2e\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e7%9b%a3%e6%8e%a7%e5%92%8c%e5%88%86%e6%9e%90%e6%b5%81%e9%87%8f-LrmDEnNCiq\">1. \u76e3\u63a7\u548c\u5206\u6790\u6d41\u91cf<\/h3>\n<p>\u4f7f\u7528\u7db2\u7d61\u76e3\u63a7\u5de5\u5177\uff08\u5982Wireshark\u6216Netstat\uff09\u4f86\u5206\u6790UDP\u6d41\u91cf\uff0c\u627e\u51fa\u54ea\u4e9b\u61c9\u7528\u7a0b\u5e8f\u6216\u670d\u52d9\u6b63\u5728\u4f54\u7528\u5927\u91cf\u7684\u7aef\u53e3\u3002\u9019\u6a23\u53ef\u4ee5\u5e6b\u52a9\u7ba1\u7406\u54e1\u4e86\u89e3\u6d41\u91cf\u4f86\u6e90\uff0c\u4e26\u91dd\u5c0d\u6027\u5730\u9032\u884c\u8abf\u6574\u3002<\/p>\n<pre><code>netstat -an | find \"UDP\"<\/code><\/pre>\n<h3 id=\"2-%e9%99%90%e5%88%b6%e7%ab%af%e5%8f%a3%e7%af%84%e5%9c%8d-LrmDEnNCiq\">2. \u9650\u5236\u7aef\u53e3\u7bc4\u570d<\/h3>\n<p>\u5728\u4f3a\u670d\u5668\u7684\u9632\u706b\u7246\u4e2d\u8a2d\u7f6e\u898f\u5247\uff0c\u9650\u5236\u53ef\u7528\u7684UDP\u7aef\u53e3\u7bc4\u570d\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u4e0d\u5fc5\u8981\u7684\u7aef\u53e3\u5360\u7528\uff0c\u4e26\u63d0\u9ad8\u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\u3002<\/p>\n<pre><code>iptables -A INPUT -p udp --dport 10000:20000 -j ACCEPT<\/code><\/pre>\n<h3 id=\"3-%e5%84%aa%e5%8c%96%e6%87%89%e7%94%a8%e9%85%8d%e7%bd%ae-LrmDEnNCiq\">3. 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id=\"5-%e5%ae%9a%e6%9c%9f%e9%87%8d%e5%95%9f%e6%9c%8d%e5%8b%99-LrmDEnNCiq\">5. \u5b9a\u671f\u91cd\u555f\u670d\u52d9<\/h3>\n<p>\u5b9a\u671f\u91cd\u555fUDP\u670d\u52d9\u53ef\u4ee5\u91cb\u653e\u88ab\u5360\u7528\u7684\u7aef\u53e3\uff0c\u9019\u662f\u4e00\u7a2e\u7c21\u55ae\u4f46\u6709\u6548\u7684\u81e8\u6642\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-LrmDEnNCiq\">\u7d50\u8ad6<\/h2>\n<p>UDP\u7aef\u53e3\u7684\u5360\u7528\u554f\u984c\u5728\u4f3a\u670d\u5668\u7ba1\u7406\u4e2d\u662f\u4e0d\u53ef\u5ffd\u8996\u7684\uff0c\u901a\u904e\u76e3\u63a7\u6d41\u91cf\u3001\u9650\u5236\u7aef\u53e3\u7bc4\u570d\u3001\u512a\u5316\u61c9\u7528\u914d\u7f6e\u3001\u4f7f\u7528\u8ca0\u8f09\u5747\u8861\u4ee5\u53ca\u5b9a\u671f\u91cd\u555f\u670d\u52d9\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u548c\u7a69\u5b9a\u6027\u7684\u61c9\u7528\uff0c\u5408\u7406\u7ba1\u7406UDP\u7aef\u53e3\u7684\u4f7f\u7528\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc\u4f3a\u670d\u5668\u7ba1\u7406\u548c<code><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a\u4f3a\u670d\u5668 UDP 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