{"id":84043,"date":"2024-03-29T11:39:02","date_gmt":"2024-03-29T03:39:02","guid":{"rendered":"https:\/\/docs.pingcode.com\/?p=84043"},"modified":"2024-03-29T11:39:02","modified_gmt":"2024-03-29T03:39:02","slug":"linux%e7%b3%bb%e7%bb%9f%e4%b8%ad%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8iptables%e9%98%b2%e7%81%ab%e5%a2%99%e9%98%bb%e6%ad%a2ddos%e6%94%bb%e5%87%bb","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/84043.html","title":{"rendered":"Linux\u7cfb\u7edf\u4e2d\u5982\u4f55\u4f7f\u7528iptables\u9632\u706b\u5899\u963b\u6b62DDoS\u653b\u51fb"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-docs.pingcode.com\/wp-content\/uploads\/2024\/03\/uploading_images2024-03-19_17-19-17_2708.png?x-oss-process=image\/auto-orient,1\/format,webp\" alt=\"Linux\u7cfb\u7edf\u4e2d\u5982\u4f55\u4f7f\u7528iptables\u9632\u706b\u5899\u963b\u6b62DDoS\u653b\u51fb\" \/><\/p>\n<p>DDoS\u653b\u51fb\uff08\u5206\u5e03\u5f0f\u62d2\u7edd\u670d\u52a1\u653b\u51fb\uff09\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u7f51\u7edc\u5b89\u5168\u5a01\u80c1\uff0cLinux\u7cfb\u7edf\u4e2d\u53ef\u4ee5\u4f7f\u7528<strong>iptables\u9632\u706b\u5899<\/strong>\u8fdb\u884c\u9632\u5fa1\u3002<strong>iptables<\/strong> \u662f Linux \u7cfb\u7edf\u81ea\u5e26\u7684\u547d\u4ee4\u884c\u9632\u706b\u5899\uff0c\u53ef\u4ee5\u914d\u7f6e\u89c4\u5219\u4ee5\u9632\u6b62\u672a\u7ecf\u6388\u6743\u7684\u7f51\u7edc\u8bbf\u95ee\u3001<strong>\u76d1\u63a7\u6d41\u91cf<\/strong>\u3001<strong>\u8fc7\u6ee4\u5305<\/strong>\u548c<strong>\u963b\u6b62DDoS\u653b\u51fb<\/strong>\u7b49\u3002\u4f8b\u5982\uff0c\u901a\u8fc7\u9650\u5236\u8fde\u63a5\u6570\u3001\u9650\u5236\u5355\u4e2aIP\u8bbf\u95ee\u9891\u7387\u7b49\u65b9\u5f0f\u53ef\u4ee5\u6709\u6548\u51cf\u5c11DDoS\u653b\u51fb\u7684\u5f71\u54cd\u3002\u5bf9\u4e8eDDoS\u653b\u51fb\uff0c\u91cd\u8981\u7684\u662f\u8981\u53ca\u65f6\u68c0\u6d4b\u5f02\u5e38\u6d41\u91cf\u6a21\u5f0f\uff0c\u5e76\u5feb\u901f\u5e94\u5bf9\uff0c\u4ece\u800c\u4fdd\u62a4\u7cfb\u7edf\u7a33\u5b9a\u8fd0\u884c\u3002<\/p>\n<p>### \u4e00\u3001\u4e86\u89e3IPTABLES\u548cDDoS\u653b\u51fb<\/p>\n<p><strong>iptables\u5de5\u4f5c\u539f\u7406<\/strong><\/p>\n<p>iptables\u6839\u636e\u9884\u5b9a\u7684\u89c4\u5219\u96c6\uff0c\u68c0\u67e5\u7ecf\u7531Linux\u5185\u6838\u7684\u6570\u636e\u5305\uff0c\u5e76\u51b3\u5b9a\u5141\u8bb8\u8fd8\u662f\u62d2\u7edd\u3001\u8ddf\u8e2a\u6216\u8005\u4fee\u6539\u8fd9\u4e9b\u6570\u636e\u5305\u3002\u5b83\u5de5\u4f5c\u5728\u5185\u6838\u7a7a\u95f4\uff0c\u64cd\u4f5c\u5728\u7528\u6237\u7a7a\u95f4\u8fdb\u884c\uff0c\u4f7f\u7528\u6237\u80fd\u591f\u914d\u7f6e\u5177\u4f53\u7684\u9632\u706b\u5899\u89c4\u5219\u3002<\/p>\n<p><strong>DDoS\u653b\u51fb\u6982\u8ff0<\/strong><\/p>\n<p>DDoS\u653b\u51fb\u901a\u8fc7\u5c06\u76ee\u6807\u670d\u52a1\u5668\u6216\u7f51\u7edc\u8d44\u6e90\u7528\u5927\u91cf\u4f2a\u9020\u6216\u52ab\u6301\u7684\u4e92\u8054\u7f51\u6d41\u91cf\u6240\u6df9\u6ca1\uff0c\u610f\u56fe\u8ba9\u7cfb\u7edf\u65e0\u6cd5\u5bf9\u6b63\u5e38\u7684\u6d41\u91cf\u505a\u51fa\u54cd\u5e94\u3002\u653b\u51fb\u901a\u5e38\u5229\u7528\u5927\u91cf\u5206\u5e03\u5728\u4e0d\u540c\u5730\u70b9\u7684\u8ba1\u7b97\u673a\u6216\u8005\u5176\u4ed6\u7f51\u7edc\u8bbe\u5907\uff08\u79f0\u4e3a\u50f5\u5c38\u7f51\u7edc\uff09\u6765\u53d1\u8d77\u3002<\/p>\n<p>### \u4e8c\u3001\u914d\u7f6eiptables\u4ee5\u9884\u9632DDoS\u653b\u51fb<\/p>\n<p><strong>\u57fa\u672c\u914d\u7f6e<\/strong><\/p>\n<p>\u4e3a\u4e86\u9632\u5fa1DDoS\u653b\u51fb\uff0c\u9996\u5148\u5e94\u786e\u4fddiptables\u670d\u52a1\u6b63\u5e38\u542f\u52a8\u5e76\u9ed8\u8ba4\u7b56\u7565\u8bbe\u4e3a\u62d2\u7edd\u6240\u6709\u975e\u6cd5\u8bf7\u6c42\u3002\u53ef\u4ee5\u8bbe\u7f6e\u9ed8\u8ba4\u7684INPUT\u3001FORWARD\u548cOUTPUT\u94fe\u7684\u7b56\u7565\u4e3aDROP\u3002<\/p>\n<p>&#8220;`shell<\/p>\n<p>iptables -P INPUT DROP<\/p>\n<p>iptables -P FORWARD DROP<\/p>\n<p>iptables -P OUTPUT DROP<\/p>\n<p>&#8220;`<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u5e94\u5141\u8bb8\u5408\u6cd5\u7684\u57fa\u672c\u901a\u4fe1\uff0c\u4f8b\u5982\u4e0e\u672c\u5730\u4e3b\u673a\u7684\u901a\u4fe1\u3001\u5df2\u5efa\u7acb\u7684\u8fde\u63a5\u548c\u76f8\u5173\u7684\u8fde\u63a5\uff1a<\/p>\n<p>&#8220;`shell<\/p>\n<p>iptables -A INPUT -i lo -j ACCEPT<\/p>\n<p>iptables -A INPUT -m conntrack &#8211;ctstate ESTABLISHED,RELATED -j ACCEPT<\/p>\n<p>&#8220;`<\/p>\n<p><strong>\u9650\u5236\u8fde\u63a5\u9891\u7387<\/strong><\/p>\n<p>\u901a\u8fc7\u9650\u5236\u7279\u5b9aIP\u6216IP\u6bb5\u7684\u8fde\u63a5\u8bf7\u6c42\u9891\u7387\uff0c\u53ef\u4ee5\u51cf\u5c0fDDoS\u653b\u51fb\u7684\u5f71\u54cd\u3002<\/p>\n<p>&#8220;`shell<\/p>\n<p>iptables -A INPUT -p tcp &#8211;dport 80 -m limit &#8211;limit 25\/minute &#8211;limit-burst 100 -j ACCEPT<\/p>\n<p>&#8220;`<\/p>\n<p>### \u4e09\u3001\u6df1\u5ea6\u9632\u5fa1\u7b56\u7565<\/p>\n<p><strong>\u8fde\u63a5\u6570\u9650\u5236<\/strong><\/p>\n<p>\u5bf9\u4e8e\u90a3\u4e9b\u4f1a\u4ea7\u751f\u5927\u91cf\u8fde\u63a5\u7684DDoS\u653b\u51fb\uff0c\u53ef\u4ee5\u901a\u8fc7\u9650\u5236\u5355\u4e2aIP\u6216IP\u6bb5\u5141\u8bb8\u7684\u6700\u5927\u8fde\u63a5\u6570\u6765\u963b\u6b62\u3002<\/p>\n<p>&#8220;`shell<\/p>\n<p>iptables -A INPUT -p tcp &#8211;syn -m connlimit &#8211;connlimit-above 111 -j DROP<\/p>\n<p>&#8220;`<\/p>\n<p><strong>\u7ba1\u7406\u5408\u6cd5\u6d41\u91cf<\/strong><\/p>\n<p>\u5373\u4f7f\u662f\u5408\u6cd5\u7684\u6d41\u91cf\u5728\u9ad8\u5cf0\u65f6\u4e5f\u53ef\u80fd\u5bfc\u81f4\u7cfb\u7edf\u8d44\u6e90\u8017\u5c3d\uff0c\u56e0\u6b64\u5408\u7406\u7ba1\u7406\u5408\u6cd5\u6d41\u91cf\u4e5f\u662f\u9632\u5fa1DDoS\u7684\u91cd\u8981\u4e00\u73af\u3002\u8bbe\u7f6e\u5408\u7406\u7684\u961f\u5217\u548c\u4f18\u5148\u7ea7\u80fd\u6709\u6548\u7ba1\u7406\u4e0d\u540c\u7c7b\u578b\u7684\u5305\u3002<\/p>\n<p>### \u56db\u3001\u76d1\u63a7\u4e0e\u65e5\u5fd7<\/p>\n<p><strong>\u6d41\u91cf\u76d1\u63a7<\/strong><\/p>\n<p>\u4f7f\u7528iptables\u7684\u65e5\u5fd7\u529f\u80fd\u80fd\u591f\u5e2e\u52a9\u60a8\u8ddf\u8e2a\u6f5c\u5728\u7684DDoS\u6d3b\u52a8\u5e76\u5bf9\u5b89\u5168\u7b56\u7565\u505a\u51fa\u8c03\u6574\u3002<\/p>\n<p>&#8220;`shell<\/p>\n<p>iptables -A INPUT -m limit &#8211;limit 5\/min -j LOG &#8211;log-prefix &#8220;iptables INPUT: &#8221; &#8211;log-level 4<\/p>\n<p>&#8220;`<\/p>\n<p><strong>\u65e5\u5fd7\u5206\u6790<\/strong><\/p>\n<p>\u65e5\u5fd7\u8bb0\u5f55\u7684\u5206\u6790\u662f\u5173\u952e\u7684\u4e00\u73af\u3002\u8bf7\u786e\u4fdd\u5b9a\u671f\u68c0\u67e5\u548c\u5206\u6790\u9632\u706b\u5899\u65e5\u5fd7\uff0c\u5229\u7528\u5de5\u5177\u5982Logwatch\u3001Swatch\u6216\u81ea\u5b9a\u4e49\u7684\u811a\u672c\u6765\u81ea\u52a8\u5316\u5206\u6790\u8fc7\u7a0b\u3002<\/p>\n<p>### \u4e94\u3001\u9632\u5fa1\u590d\u6742DDoS\u653b\u51fb<\/p>\n<p>\u590d\u6742\u7684DDoS\u653b\u51fb\u53ef\u80fd\u6d89\u53ca\u591a\u5c42\u6b21\u7684\u653b\u51fb\u6280\u5de7\uff0c\u6bd4\u5982\u540c\u65f6\u8fdb\u884c\u5e26\u5bbd\u8017\u5c3d\u653b\u51fb\u548c\u8d44\u6e90\u8017\u5c3d\u653b\u51fb\u3002\u9762\u5bf9\u8fd9\u79cd\u653b\u51fb\uff0c\u9700\u8981\u7efc\u5408\u8fd0\u7528<strong>\u8de8\u5c42\u9632\u5fa1<\/strong>\u3001<strong>\u6d41\u91cf\u6e05\u6d17<\/strong>\u4ee5\u53ca\u5e94\u6025\u54cd\u5e94\u7b49\u591a\u79cd\u624b\u6bb5\u6765\u7efc\u5408\u9632\u5fa1\u3002<\/p>\n<p><strong>\u7efc\u5408\u9632\u5fa1\u7b56\u7565<\/strong><\/p>\n<p>\u7ed3\u5408\u786c\u4ef6\u548c\u8f6f\u4ef6\u7684\u89e3\u51b3\u65b9\u6848\u6765\u6784\u5efa\u591a\u5c42\u9632\u5fa1\u4f53\u7cfb\uff0c\u4f8b\u5982\u4f7f\u7528\u57fa\u4e8e\u4e91\u7684DDoS\u9632\u62a4\u670d\u52a1\uff0c\u4ee5\u53ca\u672c\u5730\u90e8\u7f72\u7684\u9632\u706b\u5899\u548c\u5165\u4fb5\u68c0\u6d4b\u7cfb\u7edf\u3002<\/p>\n<p>### \u516d\u3001\u5e94\u5bf9\u548c\u6062\u590d<\/p>\n<p><strong>\u5e94\u6025\u54cd\u5e94\u8ba1\u5212<\/strong><\/p>\n<p>\u5efa\u7acb\u548c\u6d4b\u8bd5\u5e94\u6025\u54cd\u5e94\u8ba1\u5212\uff0c\u786e\u4fdd\u5728DDoS\u653b\u51fb\u53d1\u751f\u65f6\u80fd\u5feb\u901f\u53cd\u5e94\u5e76\u6700\u5c0f\u5316\u635f\u5931\u3002\u8ba1\u5212\u4e2d\u5305\u62ec\u7f51\u7edc\u6d41\u91cf\u91cd\u5b9a\u5411\u3001\u5907\u7528\u670d\u52a1\u5668\u542f\u7528\u7b49\u3002<\/p>\n<p><strong>\u707e\u96be\u6062\u590d<\/strong><\/p>\n<p>\u6062\u590d\u7b56\u7565\u4e0e\u5907\u4efd\uff0c\u4ee5\u53caDDoS\u653b\u51fb\u540e\u6570\u636e\u7684\u5feb\u901f\u6062\u590d\u540c\u6837\u91cd\u8981\u3002\u5b9a\u671f\u5907\u4efd\u5173\u952e\u6570\u636e\u548c\u7cfb\u7edf\u914d\u7f6e\uff0c\u786e\u4fdd\u53ef\u4ee5\u5728\u77ed\u65f6\u95f4\u5185\u6062\u590d\u4e1a\u52a1\u64cd\u4f5c\u3002<\/p>\n<p>\u7efc\u5408\u5730\u770b\uff0c\u4f7f\u7528iptables\u9632\u706b\u5899\u9632\u5fa1DDoS\u653b\u51fb\u6d89\u53ca\u5bf9\u5165\u7ad9\u6d41\u91cf\u8fdb\u884c\u4e25\u683c\u7684\u63a7\u5236\u548c\u76d1\u63a7\uff0c\u4ee5\u53ca\u4e0d\u65ad\u8c03\u6574\u7b56\u7565\u5e94\u5bf9\u4e0d\u540c\u7c7b\u578b\u548c\u89c4\u6a21\u7684\u653b\u51fb\u3002\u4e00\u822c\u800c\u8a00\uff0c\u5355\u7eaf\u4f9d\u8d56iptables\u5bf9\u4e8e\u5927\u89c4\u6a21\u548c\u590d\u6742\u7684DDoS\u653b\u51fb\u53ef\u80fd\u662f\u4e0d\u591f\u7684\uff0c\u56e0\u6b64\u8fd8\u5e94\u7ed3\u5408\u5176\u4ed6\u7f51\u7edc\u5b89\u5168\u63aa\u65bd\u548c\u6280\u672f\u6765\u6784\u5efa\u66f4\u4e3a\u5065\u58ef\u548c\u591a\u5c42\u6b21\u7684\u9632\u5fa1\u7cfb\u7edf\u3002<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p><strong>\u5982\u4f55\u5229\u7528iptables\u8bbe\u7f6e\u9632\u706b\u5899\u89c4\u5219\u6765\u963b\u6b62DDoS\u653b\u51fb\uff1f<\/strong><\/p>\n<p>\u9632\u706b\u5899\u5728Linux\u7cfb\u7edf\u4e2d\u662f\u81f3\u5173\u91cd\u8981\u7684\u5b89\u5168\u5de5\u5177\uff0c\u800ciptables\u5219\u662f\u7528\u4e8e\u8bbe\u7f6e\u9632\u706b\u5899\u89c4\u5219\u7684\u5173\u952e\u5de5\u5177\u4e4b\u4e00\u3002\u8981\u963b\u6b62DDoS\u653b\u51fb\uff0c\u53ef\u4ee5\u901a\u8fc7iptables\u8bbe\u7f6e\u89c4\u5219\u6765\u9650\u5236\u7279\u5b9aIP\u5730\u5740\u7684\u8bbf\u95ee\u9891\u7387\uff0c\u9632\u6b62\u5927\u91cf\u6076\u610f\u6d41\u91cf\u5bf9\u670d\u52a1\u5668\u9020\u6210\u5f71\u54cd\u3002\u540c\u65f6\uff0c\u8fd8\u53ef\u4ee5\u8bbe\u7f6e\u89c4\u5219\u6765\u9650\u5236\u6216\u5c4f\u853d\u7279\u5b9a\u7aef\u53e3\u7684\u8bbf\u95ee\uff0c\u4ee5\u9632\u6b62\u653b\u51fb\u8005\u5229\u7528\u5df2\u77e5\u6f0f\u6d1e\u8fdb\u884c\u653b\u51fb\u3002<\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528iptables\u76d1\u63a7\u670d\u52a1\u5668\u6d41\u91cf\u5e76\u963b\u6b62\u6f5c\u5728\u7684DDoS\u653b\u51fb\uff1f<\/strong><\/p>\n<p>\u9664\u4e86\u8bbe\u7f6e\u89c4\u5219\u6765\u963b\u6b62DDoS\u653b\u51fb\uff0c\u8fd8\u53ef\u4ee5\u5229\u7528iptables\u76d1\u63a7\u670d\u52a1\u5668\u7684\u7f51\u7edc\u6d41\u91cf\u60c5\u51b5\uff0c\u53ca\u65f6\u53d1\u73b0\u5f02\u5e38\u6d41\u91cf\u5e76\u8fdb\u884c\u76f8\u5e94\u7684\u963b\u6b62\u3002\u901a\u8fc7\u76d1\u63a7\u670d\u52a1\u5668\u7684\u6d41\u91cf\u60c5\u51b5\uff0c\u53ef\u4ee5\u53ca\u65f6\u91c7\u53d6\u63aa\u65bd\u5e94\u5bf9\u6f5c\u5728\u7684DDoS\u653b\u51fb\uff0c\u4fdd\u969c\u670d\u52a1\u5668\u7684\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n<p><strong>\u5982\u4f55\u5728Linux\u7cfb\u7edf\u4e2d\u914d\u7f6eiptables\u4ee5\u5c3d\u53ef\u80fd\u51cf\u5c11DDoS\u653b\u51fb\u7684\u5f71\u54cd\uff1f<\/strong><\/p>\n<p>\u9664\u4e86\u8bbe\u7f6e\u89c4\u5219\u6765\u963b\u6b62DDoS\u653b\u51fb\u548c\u76d1\u63a7\u6d41\u91cf\u5916\uff0c\u8fd8\u53ef\u4ee5\u5728Linux\u7cfb\u7edf\u4e2d\u914d\u7f6eiptables\u6765\u5c3d\u53ef\u80fd\u51cf\u5c11DDoS\u653b\u51fb\u7684\u5f71\u54cd\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u914d\u7f6eiptables\u4ee5\u8fc7\u6ee4\u7279\u5b9a\u7c7b\u578b\u7684\u6570\u636e\u5305\uff0c\u9650\u5236\u8fde\u63a5\u901f\u7387\uff0c\u8bbe\u7f6e\u8fde\u63a5\u6570\u9650\u5236\u7b49\u63aa\u65bd\u6765\u52a0\u5f3a\u670d\u52a1\u5668\u7684\u5b89\u5168\u9632\u62a4\uff0c\u4ece\u800c\u51cf\u5c11DDoS\u653b\u51fb\u5bf9\u670d\u52a1\u5668\u7684\u5f71\u54cd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"DDoS\u653b\u51fb\uff08\u5206\u5e03\u5f0f\u62d2\u7edd\u670d\u52a1\u653b\u51fb\uff09\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u7f51\u7edc\u5b89\u5168\u5a01\u80c1\uff0cLinux\u7cfb\u7edf\u4e2d\u53ef\u4ee5\u4f7f\u7528iptables\u9632\u706b\u5899\u8fdb\u884c [&hellip;]","protected":false},"author":1,"featured_media":84044,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[384],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/84043"}],"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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=84043"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/84043\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/84044"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=84043"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=84043"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=84043"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}