\u67d0\u4e9bDDoS\u653b\u51fb\u4ee5\u5927\u91cf\u67e5\u8be2\u653b\u51fbDNS\u670d\u52a1\u5668\u3002\u5bf9\u4e8e\u5145\u5f53DNS\u89e3\u6790\u5668\u7684\u9999\u6e2f\u670d\u52a1\u5668\u6765\u8bf4\uff0c\u8fd9\u53ef\u80fd\u7279\u522b\u6210\u95ee\u9898\u3002\u76d1\u63a7\u60a8\u7684DNS\u67e5\u8be2\u7387\u5e76\u5bfb\u627e\u5f02\u5e38\u6fc0\u589e\u3002<\/p>\n

\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u76d1\u63a7BIND\u670d\u52a1\u5668\u4e0a\u7684DNS\u67e5\u8be2\uff1a<\/p>\n

\r\nrndc stats && cat \/var\/named\/data\/named_stats.txt | grep \"queries\"\r\n<\/code><\/pre>\n
\u8fd9\u4e2a\u547d\u4ee4\u63d0\u4f9b\u4e86DNS\u67e5\u8be2\u7684\u7edf\u8ba1\u4fe1\u606f\uff0c\u5e2e\u52a9\u60a8\u8bc6\u522b\u6f5c\u5728\u7684\u57fa\u4e8eDNS\u7684DDoS\u653b\u51fb\u3002<\/p>\n
[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text css=””]<\/p>\n
6. \u5e94\u7528\u5c42\u5f02\u5e38<\/strong><\/h2>\n
\u590d\u6742\u7684DDoS\u653b\u51fb\u901a\u5e38\u9488\u5bf9\u7279\u5b9a\u5e94\u7528\u3002\u5bf9\u4e8e\u63d0\u4f9b\u591a\u6837\u5316\u670d\u52a1\u7684\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u63d0\u4f9b\u5546\u6765\u8bf4\uff0c\u76d1\u63a7\u7279\u5b9a\u5e94\u7528\u7684\u6307\u6807\u81f3\u5173\u91cd\u8981\u3002\u5bfb\u627e\u5e94\u7528\u65e5\u5fd7\u6216\u6027\u80fd\u6307\u6807\u4e2d\u7684\u5f02\u5e38\u6a21\u5f0f\u3002<\/p>\n
\u4ee5\u4e0b\u662f\u4e00\u4e2aPython\u811a\u672c\uff0c\u7528\u4e8e\u76d1\u63a7HTTP\u54cd\u5e94\u4ee3\u7801\uff0c\u53ef\u4ee5\u5e2e\u52a9\u8bc6\u522b\u5e94\u7528\u5c42\u653b\u51fb\uff1a<\/p>\n
\r\nimport re\r\nfrom collections import Counter\r\n\r\ndef analyze_http_codes(log_file):\r\n    http_codes = []\r\n    with open(log_file, 'r') as f:\r\n        for line in f:\r\n            match = re.search(r'\" (\\d{3}) ', line)\r\n            if match:\r\n                http_codes.append(match.group(1))\r\n    \r\n    code_counts = Counter(http_codes)\r\n    for code, count in code_counts.most_common():\r\n        print(f\"HTTP {code}: {count}\")\r\n\r\nanalyze_http_codes('\/var\/log\/apache2\/access.log')\r\n<\/code><\/pre>\n
\u8fd9\u4e2a\u811a\u672c\u5206\u6790\u60a8\u7684Web\u670d\u52a1\u5668\u65e5\u5fd7\u5e76\u63d0\u4f9bHTTP\u54cd\u5e94\u4ee3\u7801\u7684\u8ba1\u6570\uff0c\u5e2e\u52a9\u60a8\u8bc6\u522b\u6f5c\u5728\u7684\u5e94\u7528\u5c42\u653b\u51fb\u3002<\/p>\n
[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text css=””]<\/p>\n
7. \u9632\u706b\u5899\u548cIDS\u8b66\u62a5<\/strong><\/h2>\n
\u60a8\u7684\u9632\u706b\u5899\u548c\u5165\u4fb5\u68c0\u6d4b\u7cfb\u7edf\uff08IDS\uff09\u662f\u62b5\u5fa1DDoS\u653b\u51fb\u7684\u7b2c\u4e00\u9053\u9632\u7ebf\u3002\u5bf9\u4e8e\u9762\u5bf9\u56fd\u9645\u6d41\u91cf\u7684\u9999\u6e2f\u670d\u52a1\u5668\u6765\u8bf4\uff0c\u6b63\u786e\u914d\u7f6e\u7684\u5b89\u5168\u7cfb\u7edf\u81f3\u5173\u91cd\u8981\u3002\u5bc6\u5207\u5173\u6ce8\u8fd9\u4e9b\u7cfb\u7edf\u53d1\u51fa\u7684\u8b66\u62a5\u3002<\/p>\n
\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u76d1\u63a7iptables\u65e5\u5fd7\u4ee5\u53d1\u73b0\u6f5c\u5728\u7684DDoS\u6307\u6807\uff1a<\/p>\n
\r\ntail -f \/var\/log\/iptables.log | grep SYN-FLOOD\r\n<\/code><\/pre>\n
\u8fd9\u4e2a\u547d\u4ee4\u5b9e\u65f6\u76d1\u63a7\u60a8\u7684iptables\u65e5\u5fd7\uff0c\u5bfb\u627eSYN\u6d2a\u6c34\u653b\u51fb\uff0c\u8fd9\u662f\u4e00\u79cd\u5e38\u89c1\u7684DDoS\u653b\u51fb\u7c7b\u578b\u3002<\/p>\n
[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text css=””]<\/p>\n
\u7ed3\u8bba\uff1a\u5728\u9999\u6e2f\u7684\u6570\u5b57\u524d\u6cbf\u4fdd\u6301\u8b66\u60d5<\/strong><\/h2>\n
\u4f5c\u4e3a\u7ba1\u7406\u9999\u6e2f\u670d\u52a1\u5668\u7684\u6280\u672f\u4e13\u4e1a\u4eba\u58eb\uff0c\u4fdd\u6301\u5bf9DDoS\u5a01\u80c1\u7684\u9886\u5148\u5730\u4f4d\u81f3\u5173\u91cd\u8981\u3002\u901a\u8fc7\u76d1\u63a7\u8fd9\u4e03\u4e2a\u5173\u952e\u6307\u6807\u5e76\u5b9e\u65bd\u63d0\u4f9b\u7684\u811a\u672c\u548c\u547d\u4ee4\uff0c\u60a8\u5c06\u505a\u597d\u5145\u5206\u51c6\u5907\uff0c\u80fd\u591f\u5feb\u901f\u68c0\u6d4b\u548c\u54cd\u5e94DDoS\u653b\u51fb\u3002\u8bf7\u8bb0\u4f4f\uff0c\u5728\u670d\u52a1\u5668\u79df\u7528\u548c\u670d\u52a1\u5668\u6258\u7ba1\u7684\u4e16\u754c\u91cc\uff0c\u8b66\u60d5\u662f\u60a8\u5bf9\u6297\u4e0d\u65ad\u6f14\u53d8\u7684\u7f51\u7edc\u5a01\u80c1\u666f\u89c2\u7684\u6700\u5927\u76df\u53cb\u3002<\/p>\n
[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"
[vc_row el_class=”blog-detail-section”][vc_column][vc_column_text css=””] \u5728\u9999\u6e2f\u84ec\u52c3\u53d1\u5c55\u7684\u6570\u5b57\u666f\u89c2\u4e2d\uff0c\u670d\u52a1\u5668\u79df\u7528\u548c\u670d\u52a1\u5668\u6258\u7ba1\u670d\u52a1\u84b8\u84b8\u65e5\u4e0a\uff0c\u5bf9\u4e8e\u4efb\u4f55\u7cbe\u901a\u6280\u672f\u7684\u4e13\u4e1a\u4eba\u58eb\u6765\u8bf4\uff0c\u4e86\u89e3DDoS\u653b\u51fb\u7684\u590d\u6742\u6027\u81f3\u5173\u91cd\u8981\u3002\u672c\u6307\u5357\u6df1\u5165\u63a2\u8ba8\u4e86\u9999\u6e2f\u670d\u52a1\u5668\u53ef\u80fd\u906d\u53d7DDoS\u653b\u51fb\u7684\u4e03\u4e2a\u5173\u952e\u6307\u6807\uff0c\u4e3a\u60a8\u63d0\u4f9b\u6709\u6548\u68c0\u6d4b\u3001\u5206\u6790\u548c\u7f13\u89e3\u8fd9\u4e9b\u5a01\u80c1\u7684\u77e5\u8bc6\u3002 [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text css=””] 1. \u7f51\u7edc\u6d41\u91cf\u5f02\u5e38\u6fc0\u589e DDoS\u653b\u51fb\u7684\u7b2c\u4e00\u4e2a\u4e5f\u662f\u6700\u660e\u663e\u7684\u8ff9\u8c61\u662f\u7f51\u7edc\u6d41\u91cf\u5f02\u5e38\u6fc0\u589e\u3002\u9999\u6e2f\u670d\u52a1\u5668\u4ee5\u5176\u5f3a\u5927\u7684\u57fa\u7840\u8bbe\u65bd\u800c\u95fb\u540d\uff0c\u4f46\u4ecd\u53ef\u80fd\u6210\u4e3a\u8fd9\u4e9b\u5927\u89c4\u6a21\u6d41\u91cf\u6d8c\u5165\u7684\u53d7\u5bb3\u8005\u3002\u8981\u68c0\u6d4b\u8fd9\u4e00\u70b9\uff0c\u60a8\u9700\u8981\u5b9e\u65bd\u6d41\u91cf\u5206\u6790\u5de5\u5177\u3002 \u4ee5\u4e0b\u662f\u4f7f\u7528psutil\u5e93\u76d1\u63a7\u7f51\u7edc\u6d41\u91cf\u7684\u7b80\u5355Python\u811a\u672c\uff1a import psutil import time def monitor_network_traffic(): old_value = psutil.net_io_counters().bytes_recv while True: time.sleep(1) new_value = psutil.net_io_counters().bytes_recv traffic = new_value – old_value print(f”\u5f53\u524d\u7f51\u7edc\u6d41\u91cf\uff1a{traffic\/1024\/1024:.2f} MB\/s”) old_value = new_value if __name__ == “__main__”: monitor_network_traffic() \u8fd9\u4e2a\u811a\u672c\u63d0\u4f9b\u4e86\u5b9e\u65f6\u76d1\u63a7\u4f20\u5165\u7f51\u7edc\u6d41\u91cf\u7684\u529f\u80fd\uff0c\u8ba9\u60a8\u80fd\u591f\u53d1\u73b0\u53ef\u80fd\u8868\u660eDDoS\u653b\u51fb\u7684\u7a81\u7136\u6fc0\u589e\u3002 [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text css=””] 2. \u670d\u52a1\u5668\u54cd\u5e94\u65f6\u95f4\u53d8\u6162 \u5f53\u60a8\u7684\u9999\u6e2f\u670d\u52a1\u5668\u5f00\u59cb\u5bf9\u8bf7\u6c42\u54cd\u5e94\u8fdf\u7f13\u65f6\uff0c\u53ef\u80fd\u662f\u5728DDoS\u653b\u51fb\u7684\u91cd\u538b\u4e0b\u6323\u624e\u3002\u76d1\u63a7\u54cd\u5e94\u65f6\u95f4\u5bf9\u4e8e\u7ef4\u6301\u6700\u4f73\u6027\u80fd\u81f3\u5173\u91cd\u8981\u3002 \u4f7f\u7528\u50cfApache Benchmark\uff08ab\uff09\u8fd9\u6837\u7684\u5de5\u5177\u6765\u6d4b\u8bd5\u60a8\u670d\u52a1\u5668\u7684\u54cd\u5e94\u65f6\u95f4\uff1a ab -n 1000 -c 100 […]<\/p>\n
Read More…<\/a><\/p>\n","protected":false},"author":2,"featured_media":17497,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[62],"tags":[2971,2369,1764,583,265],"class_list":["post-17505","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hong-kong-dedicated-server-sc","tag-server-monitoring-sc","tag-traffic-analysis-sc","tag-ddos-attacks-sc","tag-network-security-sc","tag-265"],"acf":[],"yoast_head":"\n