\u7f51\u7edc\u8bca\u65ad\u547d\u4ee4<\/h3>\n

\u7f51\u7edc\u8bca\u65ad\u7684\u57fa\u672c\u547d\u4ee4\u884c\u5de5\u5177\u5305\u62ec\uff1a<\/p>\n

\r\nmtr -r target_ip    # \u7528\u4e8e\u8def\u7531\u5206\u6790\r\ntcpdump -i any      # \u7528\u4e8e\u6570\u636e\u5305\u6355\u83b7\r\niftop -P            # \u7528\u4e8e\u5e26\u5bbd\u76d1\u63a7\r\n<\/pre>\n
DDoS\u6d2a\u6c34\u653b\u51fb\u7684\u5173\u952e\u6307\u6807<\/strong><\/h2>\n
\u5728\u68c0\u67e5\u6f5c\u5728\u7684DDoS\u653b\u51fb\u65f6\uff0c\u8bf7\u6ce8\u610f\u4ee5\u4e0b\u660e\u663e\u6807\u5fd7\uff1a<\/p>\n
\n
\u5e26\u5bbd\u9971\u548c\n
\n
\u6301\u7eed\u9ad8\u5e26\u5bbd\u4f7f\u7528<\/li>\n
\u7edf\u4e00\u7684\u6570\u636e\u5305\u5927\u5c0f<\/li>\n
\u4e00\u81f4\u7684\u6d41\u91cf\u6a21\u5f0f<\/li>\n<\/ul>\n<\/li>\n
\u670d\u52a1\u5668\u54cd\u5e94\n
\n
\u9632\u706b\u5899CPU\u4f7f\u7528\u7387\u9ad8<\/li>\n
\u7f51\u7edc\u63a5\u53e3\u9971\u548c<\/li>\n
\u8fde\u63a5\u8868\u6ea2\u51fa<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
\u7f51\u7edc\u62e5\u5835\u5206\u6790<\/strong><\/h2>\n
\u65e5\u672c\u7f51\u7edc\u57fa\u7840\u8bbe\u65bd\u5728\u62e5\u5835\u5206\u6790\u65b9\u9762\u63d0\u51fa\u4e86\u72ec\u7279\u7684\u6311\u6218\u3002\u9700\u8981\u8003\u8651\u4ee5\u4e0b\u56e0\u7d20\uff1a<\/p>\n
\n
\u9ad8\u5cf0\u65f6\u6bb5\u5f71\u54cd\n
\n
\u5de5\u4f5c\u65f6\u95f4\u6d41\u91cf\u6a21\u5f0f<\/li>\n
\u56fd\u9645\u8def\u7531\u5f71\u54cd<\/li>\n
\u8de8\u5883\u5e26\u5bbd\u9650\u5236<\/li>\n<\/ul>\n<\/li>\n
\u57fa\u7840\u8bbe\u65bd\u9650\u5236\n
\n
\u6d77\u5e95\u7535\u7f06\u5bb9\u91cf<\/li>\n
\u533a\u57df\u5bf9\u7b49\u70b9<\/li>\n
\u6700\u540e\u4e00\u516c\u91cc\u62e5\u5835<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n
\u7f13\u89e3\u7b56\u7565<\/strong><\/h2>\n
\u5b9e\u65bd\u6709\u6548\u7684\u5bf9\u7b56\u9700\u8981\u57fa\u4e8e\u51c6\u786e\u8bca\u65ad\u7684\u591a\u5c42\u6b21\u65b9\u6cd5\uff1a<\/p>\n
DDoS\u9632\u62a4\u63aa\u65bd<\/h3>\n
\n
\u6d41\u91cf\u6e05\u6d17\n
\n
BGP\u9ed1\u6d1e\u8def\u7531<\/li>\n
\u4efb\u64ad\u7f51\u7edc\u5206\u5e03<\/li>\n
\u7b2c7\u5c42\u8fc7\u6ee4\u673a\u5236<\/li>\n<\/ul>\n<\/li>\n
\u786c\u4ef6\u89e3\u51b3\u65b9\u6848\n
\n
\u4e13\u7528DDoS\u7f13\u89e3\u8bbe\u5907<\/li>\n
\u667a\u80fd\u7f51\u5361\u5b9e\u65bd<\/li>\n
\u8d1f\u8f7d\u5747\u8861\u5668\u914d\u7f6e<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
\u62e5\u5835\u7ba1\u7406<\/h3>\n
\n
\u57fa\u7840\u8bbe\u65bd\u4f18\u5316\n
\n
\u591a\u8def\u7531\u914d\u7f6e<\/li>\n
CDN\u5b9e\u65bd<\/li>\n
\u6d41\u91cf\u6574\u5f62\u7b56\u7565<\/li>\n<\/ul>\n<\/li>\n
\u8def\u7531\u4f18\u5316\n
\n
BGP\u8def\u5f84\u9009\u62e9<\/li>\n
\u5730\u7406DNS\u8def\u7531<\/li>\n
\u4efb\u64ad\u90e8\u7f72<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n
\u5b9e\u8df5\u5b9e\u65bd\u6307\u5357<\/strong><\/h2>\n
\u9075\u5faa\u4ee5\u4e0b\u6b65\u9aa4\u8fdb\u884c\u51c6\u786e\u8bca\u65ad\uff1a<\/p>\n
\n
\u521d\u6b65\u8bc4\u4f30\n
\r\nnetstat -s | grep -i \"syn\"    # \u68c0\u67e5SYN\u6d2a\u6c34\u6307\u6807\r\niptables -L -n -v            # \u5206\u6790\u9632\u706b\u5899\u547d\u4e2d\r\ndmesg | tail -n 50           # \u67e5\u770b\u5185\u6838\u6d88\u606f<\/pre>\n<\/li>\n
\u6df1\u5ea6\u5206\u6790\n
\n
\u5ba1\u67e5NetFlow\u6570\u636e\u6a21\u5f0f<\/li>\n
\u5206\u6790\u5730\u7406\u5206\u5e03<\/li>\n
\u68c0\u67e5\u6570\u636e\u5305\u7279\u5f81<\/li>\n<\/ul>\n<\/li>\n
\u5b9e\u65bd\n
\n
\u90e8\u7f72\u9002\u5f53\u7684\u5bf9\u7b56<\/li>\n
\u76d1\u63a7\u6709\u6548\u6027<\/li>\n
\u6839\u636e\u9700\u8981\u8c03\u6574\u7b56\u7565<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n
\u7ed3\u8bba<\/strong><\/h2>\n
\u5728\u65e5\u672c\u670d\u52a1\u5668\u73af\u5883\u4e2d\u6210\u529f\u533a\u5206DDoS\u6d2a\u6c34\u653b\u51fb\u548c\u7f51\u7edc\u62e5\u5835\u9700\u8981\u7ed3\u5408\u6280\u672f\u4e13\u4e1a\u77e5\u8bc6\u3001\u9002\u5f53\u7684\u5de5\u5177\u548c\u7cfb\u7edf\u5206\u6790\u3002\u901a\u8fc7\u9075\u5faa\u8fd9\u4e9b\u6307\u5357\u5e76\u4fdd\u6301\u5bf9\u76d1\u63a7\u548c\u54cd\u5e94\u7684\u8b66\u60d5\uff0c\u7ba1\u7406\u5458\u53ef\u4ee5\u6709\u6548\u4fdd\u62a4\u5176\u57fa\u7840\u8bbe\u65bd\uff0c\u540c\u65f6\u786e\u4fdd\u6700\u4f73\u6027\u80fd\u3002<\/p>\n
\u4e3a\u6301\u7eed\u9632\u62a4DDoS\u6d2a\u6c34\u653b\u51fb\u548c\u7f51\u7edc\u62e5\u5835\uff0c\u8bf7\u8003\u8651\u5b9e\u65bd\u5168\u9762\u7684\u76d1\u63a7\u7cfb\u7edf\uff0c\u5e76\u4e0eDDoS\u7f13\u89e3\u670d\u52a1\u63d0\u4f9b\u5546\u4fdd\u6301\u8054\u7cfb\u3002\u5b9a\u671f\u6d4b\u8bd5\u548c\u66f4\u65b0\u5b89\u5168\u534f\u8bae\u5c06\u6709\u52a9\u4e8e\u786e\u4fdd\u5728\u65e5\u672c\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u4e2d\u6301\u7eed\u6709\u6548\u5730\u5e94\u5bf9\u4e0d\u65ad\u6f14\u53d8\u7684\u5a01\u80c1\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5728\u65e5\u672c\u670d\u52a1\u5668\u8fd0\u8425\u9886\u57df\uff0c\u533a\u5206DDoS\u6d2a\u6c34\u653b\u51fb\u548c\u7f51\u7edc\u62e5\u5835\u5bf9\u4e8e\u7ef4\u6301\u6700\u4f73\u670d\u52a1\u6027\u80fd\u81f3\u5173\u91cd\u8981\u3002\u672c\u6307\u5357\u6df1\u5165\u63a2\u8ba8\u4e86\u8bc6\u522b\u8fd9\u4e9b\u95ee\u9898\u7684\u5b9e\u7528\u65b9\u6cd5\uff0c\u91cd\u70b9\u5173\u6ce8\u65e5\u672c\u6570\u636e\u4e2d\u5fc3\u7684\u5e26\u5bbd\u653b\u51fb\u548c\u6d41\u91cf\u5206\u6790\u3002 \u4e86\u89e3DDoS\u6d2a\u6c34\u653b\u51fb DDoS\u6d2a\u6c34\u653b\u51fb\u662f\u5bf9\u670d\u52a1\u5668\u57fa\u7840\u8bbe\u65bd\u7684\u4e00\u79cd\u590d\u6742\u5a01\u80c1\u3002\u4e0e\u5e38\u89c4\u6d41\u91cf\u6a21\u5f0f\u4e0d\u540c\uff0c\u8fd9\u4e9b\u653b\u51fb\u5177\u6709\u72ec\u7279\u7684\u7279\u5f81\uff0c\u4f7f\u5176\u533a\u522b\u4e8e\u5178\u578b\u7684\u7f51\u7edc\u62e5\u5835\u95ee\u9898\u3002 \u5728\u6ca1\u6709\u76f8\u5e94\u7528\u6237\u6d3b\u52a8\u7684\u60c5\u51b5\u4e0b\u7a81\u7136\u51fa\u73b0\u6d41\u91cf\u5cf0\u503c \u5f02\u5e38\u7684\u534f\u8bae\u5206\u5e03 \u6765\u81ea\u76f8\u4f3cIP\u8303\u56f4\u7684\u591a\u4e2a\u8bf7\u6c42 \u4e0d\u5bfb\u5e38\u7684\u5730\u7406\u6d41\u91cf\u6a21\u5f0f \u7f51\u7edc\u62e5\u5835\u7279\u5f81 \u7279\u522b\u662f\u5728\u65e5\u672c\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u4e2d\uff0c\u7f51\u7edc\u62e5\u5835\u7684\u8868\u73b0\u5f80\u5f80\u4e0e\u6076\u610f\u653b\u51fb\u4e0d\u540c\u3002\u7406\u89e3\u8fd9\u4e9b\u6a21\u5f0f\u5bf9\u4e8e\u51c6\u786e\u8bca\u65ad\u81f3\u5173\u91cd\u8981\u3002 \u6027\u80fd\u9010\u6e10\u4e0b\u964d \u53ef\u9884\u6d4b\u7684\u4f7f\u7528\u9ad8\u5cf0\u6a21\u5f0f \u5ef6\u8fdf\u6301\u7eed\u589e\u52a0 \u533a\u57df\u6d41\u91cf\u76f8\u5173\u6027 \u8bca\u65ad\u5de5\u5177\u548c\u65b9\u6cd5 \u6709\u6548\u8bca\u65ad\u9700\u8981\u4f7f\u7528\u4e13\u4e1a\u5de5\u5177\u548c\u65b9\u6cd5\u8fdb\u884c\u7cfb\u7edf\u6027\u5206\u6790\u3002\u4ee5\u4e0b\u662f\u57fa\u672c\u8bca\u65ad\u7a0b\u5e8f\u7684\u5168\u9762\u5206\u6790\uff1a \u6d41\u91cf\u5206\u6790\u5de5\u5177 NetFlow\u5206\u6790 \u5b9e\u65f6\u76d1\u63a7\u6d41\u91cf\u6a21\u5f0f \u5206\u6790\u6570\u636e\u5305\u5927\u5c0f\u5206\u5e03 \u8ddf\u8e2a\u6e90IP\u591a\u6837\u6027 Wireshark\u8c03\u67e5 \u6df1\u5ea6\u6570\u636e\u5305\u68c0\u6d4b \u534f\u8bae\u5206\u6790 \u6d41\u91cf\u6a21\u5f0f\u53ef\u89c6\u5316 \u7f51\u7edc\u8bca\u65ad\u547d\u4ee4 \u7f51\u7edc\u8bca\u65ad\u7684\u57fa\u672c\u547d\u4ee4\u884c\u5de5\u5177\u5305\u62ec\uff1a mtr -r target_ip # \u7528\u4e8e\u8def\u7531\u5206\u6790 tcpdump -i any # \u7528\u4e8e\u6570\u636e\u5305\u6355\u83b7 iftop -P # \u7528\u4e8e\u5e26\u5bbd\u76d1\u63a7 DDoS\u6d2a\u6c34\u653b\u51fb\u7684\u5173\u952e\u6307\u6807 \u5728\u68c0\u67e5\u6f5c\u5728\u7684DDoS\u653b\u51fb\u65f6\uff0c\u8bf7\u6ce8\u610f\u4ee5\u4e0b\u660e\u663e\u6807\u5fd7\uff1a \u5e26\u5bbd\u9971\u548c \u6301\u7eed\u9ad8\u5e26\u5bbd\u4f7f\u7528 \u7edf\u4e00\u7684\u6570\u636e\u5305\u5927\u5c0f \u4e00\u81f4\u7684\u6d41\u91cf\u6a21\u5f0f \u670d\u52a1\u5668\u54cd\u5e94 \u9632\u706b\u5899CPU\u4f7f\u7528\u7387\u9ad8 \u7f51\u7edc\u63a5\u53e3\u9971\u548c \u8fde\u63a5\u8868\u6ea2\u51fa \u7f51\u7edc\u62e5\u5835\u5206\u6790 \u65e5\u672c\u7f51\u7edc\u57fa\u7840\u8bbe\u65bd\u5728\u62e5\u5835\u5206\u6790\u65b9\u9762\u63d0\u51fa\u4e86\u72ec\u7279\u7684\u6311\u6218\u3002\u9700\u8981\u8003\u8651\u4ee5\u4e0b\u56e0\u7d20\uff1a \u9ad8\u5cf0\u65f6\u6bb5\u5f71\u54cd \u5de5\u4f5c\u65f6\u95f4\u6d41\u91cf\u6a21\u5f0f \u56fd\u9645\u8def\u7531\u5f71\u54cd […]<\/p>\n
Read More…<\/a><\/p>\n","protected":false},"author":2,"featured_media":28637,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[8117],"tags":[9379,9380,8283,7870,2369],"class_list":["post-28640","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-japan-dedicated-server-sc","tag-bandwidth-attack","tag-ddos-floods","tag-japan-servers-sc","tag-network-congestion-sc","tag-traffic-analysis-sc"],"acf":[],"yoast_head":"\n