[vc_row el_class=”blog-detail-section”][vc_column][vc_column_text css=””]<\/p>\n
\u5728\u4e0d\u65b7\u6f14\u8b8a\u7684\u7db2\u8def\u5b89\u5168\u74b0\u5883\u4e2d\uff0cDDoS\u653b\u64ca\u4ecd\u7136\u662f\u5c0d\u7dda\u4e0a\u4f01\u696d\u7684\u6301\u7e8c\u5a01\u8105\u3002\u5c0d\u65bc\u7ba1\u7406\u9999\u6e2f\u4f3a\u670d\u5668\u79df\u7528\u670d\u52d9<\/a>\u7684\u6280\u8853\u7cbe\u901a\u7684\u5c08\u696d\u4eba\u58eb\u4f86\u8aaa\uff0c\u7406\u89e3\u9ad8\u9632\u4f3a\u670d\u5668<\/a>\u3001\u9ad8\u9632IP\u548c\u9ad8\u9632CDN<\/a>\u7684\u7d30\u5fae\u5dee\u5225\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u6df1\u5165\u63a2\u8a0eDDoS\u7de9\u89e3<\/a>\u7684\u6280\u8853\u5c64\u9762\uff0c\u63a2\u7d22\u6280\u8853\u5dee\u7570\u4e26\u63d0\u4f9b\u7a0b\u5f0f\u78bc\u793a\u4f8b\u4f86\u8aaa\u660e\u95dc\u9375\u6982\u5ff5\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 \u5728\u6df1\u5165\u6280\u8853\u7d30\u7bc0\u4e4b\u524d\uff0c\u8b93\u6211\u5011\u5148\u5efa\u7acb\u4e00\u500b\u57fa\u7dda\u3002DDoS\u9632\u8b77\u670d\u52d9\u65e8\u5728\u904e\u6ffe\u60e1\u610f\u6d41\u91cf\uff0c\u540c\u6642\u5141\u8a31\u5408\u6cd5\u8acb\u6c42\u901a\u904e\u3002\u6211\u5011\u6b63\u5728\u7814\u7a76\u7684\u4e09\u7a2e\u4e3b\u8981\u985e\u578b – \u9ad8\u9632\u4f3a\u670d\u5668\u3001\u9ad8\u9632IP\u548c\u9ad8\u9632CDN – \u6bcf\u7a2e\u90fd\u6709\u7368\u7279\u7684\u61c9\u5c0d\u9019\u4e00\u6311\u6230\u7684\u65b9\u6cd5\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 \u9ad8\u9632\u4f3a\u670d\u5668\u662f\u5c08\u7528\u6a5f\u5668\uff0c\u914d\u5099\u589e\u5f37\u7684\u786c\u9ad4\u548c\u5c08\u9580\u8a2d\u8a08\u7684\u8edf\u9ad4\uff0c\u80fd\u5920\u62b5\u79a6\u5927\u898f\u6a21DDoS\u653b\u64ca\u3002\u9019\u4e9b\u4f3a\u670d\u5668\u901a\u5e38\u63a1\u7528\u6838\u5fc3\u7d1a\u904e\u6ffe\u548c\u9032\u968e\u6d41\u91cf\u5206\u6790\u6f14\u7b97\u6cd5\u3002<\/p>\n \u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u5316\u7684Python\u7a0b\u5f0f\u78bc\u7247\u6bb5\uff0c\u8aaa\u660e\u4e86\u57fa\u672c\u7684\u6d41\u91cf\u904e\u6ffe\u6982\u5ff5\uff1a<\/p>\n \u9019\u6bb5\u7a0b\u5f0f\u78bc\u6f14\u793a\u4e86\u4e00\u500b\u57fa\u672c\u4f3a\u670d\u5668\uff0c\u5b83\u6839\u64da\u5047\u8a2d\u7684\u60e1\u610fIP\u8cc7\u6599\u5eab\u6aa2\u67e5\u50b3\u5165\u9023\u63a5\u3002\u5be6\u969b\u4e0a\uff0c\u9ad8\u9632\u4f3a\u670d\u5668\u4f7f\u7528\u66f4\u8907\u96dc\u7684\u65b9\u6cd5\uff0c\u901a\u5e38\u6d89\u53ca\u6a5f\u5668\u5b78\u7fd2\u548c\u5373\u6642\u5a01\u8105\u60c5\u5831\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 \u9ad8\u9632IP\u5145\u7576\u7b2c\u4e00\u9053\u9632\u7dda\uff0c\u5438\u6536\u548c\u904e\u6ffe\u653b\u64ca\u6d41\u91cf\uff0c\u7136\u5f8c\u518d\u5230\u9054\u60a8\u7684\u4f3a\u670d\u5668\u3002\u9019\u4e9bIP\u901a\u5e38\u7531\u5c08\u9580\u7684DDoS\u7de9\u89e3\u670d\u52d9\u63d0\u4f9b\uff0c\u4e26\u4f7f\u7528\u9032\u968e\u8def\u7531\u6280\u8853\u4f86\u6e05\u6d17\u6d41\u91cf\u3002<\/p>\n \u70ba\u4e86\u8aaa\u660e\u6d41\u91cf\u5982\u4f55\u901a\u904e\u9ad8\u9632IP\u91cd\u65b0\u8def\u7531\uff0c\u8acb\u8003\u616e\u9019\u500b\u7c21\u5316\u7684bash\u8173\u672c\uff1a<\/p>\n \u9019\u500b\u8173\u672c\u6f14\u793a\u4e86\u5982\u4f55\u4f7f\u7528iptables\u898f\u5247\u5c07\u6d41\u91cf\u91cd\u5b9a\u5411\u901a\u904e\u53d7\u4fdd\u8b77\u7684IP\u3002\u5be6\u969b\u4e0a\uff0c\u9ad8\u9632IP\u670d\u52d9\u4f7f\u7528\u66f4\u8907\u96dc\u7684\u8def\u7531\u6a5f\u5236\uff0c\u901a\u5e38\u6d89\u53caBGP\u516c\u544a\u4ee5\u5be6\u73fe\u7121\u7e2b\u6d41\u91cf\u91cd\u5b9a\u5411\u3002[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text css=””]<\/p>\n \u5177\u6709DDoS\u9632\u8b77\u529f\u80fd\u7684\u5167\u5bb9\u50b3\u905e\u7db2\u8def\uff08CDN\uff09\u5229\u7528\u5176\u5206\u6563\u5f0f\u7279\u6027\uff0c\u5728\u591a\u500b\u5b58\u5728\u9ede\uff08PoPs\uff09\u5438\u6536\u548c\u7de9\u89e3\u653b\u64ca\u3002\u9019\u7a2e\u65b9\u6cd5\u5c0d\u65bc\u5927\u898f\u6a21DDoS\u653b\u64ca\u7279\u5225\u6709\u6548\u3002<\/p>\n \u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u5316\u7684Node.js\u793a\u4f8b\uff0c\u8aaa\u660eCDN\u5982\u4f55\u5206\u767c\u6d41\u91cf\uff1a<\/p>\n \u9019\u6bb5\u7a0b\u5f0f\u78bc\u6f14\u793a\u4e86\u57fa\u672c\u7684CDN\u884c\u70ba\uff0c\u5176\u4e2d\u8acb\u6c42\u88ab\u8f49\u767c\u5230\u6700\u8fd1\u7684PoP\u3002\u5be6\u969b\u7684CDN\u63a1\u7528\u66f4\u8907\u96dc\u7684\u8ca0\u8f09\u5e73\u8861\u548c\u5feb\u53d6\u6a5f\u5236\uff0c\u4ee5\u53ca\u9032\u968eDDoS\u7de9\u89e3\u6280\u8853\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 \u5728\u70ba\u60a8\u7684\u9999\u6e2f\u4f3a\u670d\u5668\u79df\u7528\u74b0\u5883\u9078\u64c7DDoS\u7de9\u89e3\u89e3\u6c7a\u65b9\u6848\u6642\uff0c\u8acb\u8003\u616e\u4ee5\u4e0b\u56e0\u7d20\uff1a<\/p>\n \u5c0d\u65bc\u9999\u6e2f\u4f3a\u670d\u5668\u79df\u7528\u63d0\u4f9b\u5546\u4f86\u8aaa\uff0c\u6df7\u5408\u65b9\u6cd5\u901a\u5e38\u80fd\u7522\u751f\u6700\u4f73\u7d50\u679c\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u9ad8\u9632IP\u4fdd\u8b77\u95dc\u9375\u57fa\u790e\u8a2d\u65bd\uff0c\u4f7f\u7528CDN\u9032\u884c\u5167\u5bb9\u5206\u767c\u548cDDoS\u5438\u6536\uff0c\u4e26\u4f7f\u7528\u9ad8\u9632\u4f3a\u670d\u5668\u4fdd\u8b77\u9700\u8981\u6700\u5927\u63a7\u5236\u7684\u654f\u611f\u61c9\u7528\u7a0b\u5f0f\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 \u4e86\u89e3\u9ad8\u9632\u4f3a\u670d\u5668\u3001\u9ad8\u9632IP\u548c\u9ad8\u9632CDN\u4e4b\u9593\u7684\u6280\u8853\u5dee\u7570\u5c0d\u65bc\u5be6\u65bd\u6709\u6548\u7684DDoS\u7de9\u89e3\u7b56\u7565\u81f3\u95dc\u91cd\u8981\u3002\u4f5c\u70ba\u9999\u6e2f\u4f3a\u670d\u5668\u79df\u7528\u63d0\u4f9b\u5546\u6216\u4f7f\u7528\u8005\uff0c\u60a8\u7684\u9078\u64c7\u61c9\u8a72\u8207\u60a8\u7684\u7279\u5b9a\u57fa\u790e\u8a2d\u65bd\u9700\u6c42\u3001\u6548\u80fd\u8981\u6c42\u548c\u5b89\u5168\u7b56\u7565\u4fdd\u6301\u4e00\u81f4\u3002\u900f\u904e\u5229\u7528\u6bcf\u7a2e\u65b9\u6cd5\u7684\u512a\u52e2\uff0c\u60a8\u53ef\u4ee5\u5275\u5efa\u4e00\u500b\u5f37\u5927\u7684\u9632\u79a6\u9ad4\u7cfb\uff0c\u4ee5\u61c9\u5c0d\u4e0d\u65b7\u6f14\u8b8a\u7684DDoS\u5a01\u8105\u74b0\u5883\u3002<\/p>\n \u8acb\u8a18\u4f4f\uff0c\u6709\u6548\u7684DDoS\u7de9\u89e3\u4e0d\u50c5\u5728\u65bc\u9078\u64c7\u6b63\u78ba\u7684\u6280\u8853\uff0c\u9084\u5728\u65bc\u4e0d\u65b7\u9069\u61c9\u548c\u5fae\u8abf\u60a8\u7684\u9632\u79a6\u3002\u53ca\u6642\u4e86\u89e3\u6700\u65b0\u7684\u653b\u64ca\u5411\u91cf\uff0c\u5b9a\u671f\u66f4\u65b0\u60a8\u7684\u4fdd\u8b77\u6a5f\u5236\uff0c\u4e26\u59cb\u7d42\u6e96\u5099\u597d\u5728\u9762\u5c0d\u65b0\u5a01\u8105\u6642\u8abf\u6574\u60a8\u7684\u7b56\u7565\u3002\u900f\u904e\u6b63\u78ba\u7d44\u5408\u9ad8\u9632\u4f3a\u670d\u5668\u3001\u9ad8\u9632IP\u548c\u9ad8\u9632CDN\uff0c\u60a8\u7684\u9999\u6e2f\u4f3a\u670d\u5668\u79df\u7528\u57fa\u790e\u8a2d\u65bd\u53ef\u4ee5\u62b5\u79a6\u6700\u8907\u96dc\u7684DDoS\u653b\u64ca\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_ […]<\/p>\n\u89e3\u78bcDDoS\u9632\u8b77\uff1a\u57fa\u790e\u77e5\u8b58<\/strong><\/h2>\n
\u9ad8\u9632\u4f3a\u670d\u5668\uff1a\u5805\u56fa\u7684\u5821\u58d8<\/strong><\/h2>\n
import socket\r\n\r\ndef is_malicious(ip_address):\r\n # \u5728\u6b64\u5be6\u73fe\u60a8\u7684\u60e1\u610fIP\u6aa2\u6e2c\u908f\u8f2f\r\n return False\r\n\r\ndef filter_traffic(connection):\r\n client_ip = connection.getpeername()[0]\r\n if is_malicious(client_ip):\r\n connection.close()\r\n else:\r\n # \u8655\u7406\u5408\u6cd5\u6d41\u91cf\r\n pass\r\n\r\nserver_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)\r\nserver_socket.bind(('0.0.0.0', 80))\r\nserver_socket.listen(5)\r\n\r\nwhile True:\r\n client_socket, address = server_socket.accept()\r\n filter_traffic(client_socket)<\/code><\/pre>\n\u9ad8\u9632IP\uff1a\u7121\u5f62\u7684\u76fe\u724c<\/strong><\/h2>\n
#!\/bin\/bash\r\n\r\n# \u6a21\u64ec\u901a\u904e\u9ad8\u9632IP\u91cd\u65b0\u8def\u7531\u6d41\u91cf\r\nPROTECTED_IP=\"203.0.113.1\"\r\nORIGIN_SERVER=\"192.168.1.100\"\r\n\r\n# \u5c07\u6240\u6709\u50b3\u5165\u6d41\u91cf\u91cd\u65b0\u8def\u7531\u5230\u53d7\u4fdd\u8b77\u7684IP\r\niptables -t nat -A PREROUTING -p tcp --dport 80 -j DNAT --to-destination $PROTECTED_IP\r\n\r\n# \u5c07\u6e05\u6d17\u5f8c\u7684\u6d41\u91cf\u8f49\u767c\u56de\u6e90\u4f3a\u670d\u5668\r\niptables -t nat -A POSTROUTING -d $ORIGIN_SERVER -j SNAT --to-source $PROTECTED_IP<\/code><\/pre>\n\u9ad8\u9632CDN\uff1a\u5206\u6563\u5f0f\u9632\u79a6<\/strong><\/h2>\n
const http = require('http');\r\nconst https = require('https');\r\n\r\nconst POPS = [\r\n { ip: '203.0.113.1', region: 'APAC' },\r\n { ip: '203.0.113.2', region: 'EU' },\r\n { ip: '203.0.113.3', region: 'NA' }\r\n];\r\n\r\nfunction selectPOP(clientIP) {\r\n \/\/ \u5be6\u73fe\u9078\u64c7\u6700\u8fd1PoP\u7684\u908f\u8f2f\r\n return POPS[0];\r\n}\r\n\r\nconst server = http.createServer((req, res) => {\r\n const clientIP = req.connection.remoteAddress;\r\n const pop = selectPOP(clientIP);\r\n \r\n https.get(`https:\/\/${pop.ip}\/origin${req.url}`, (popRes) => {\r\n popRes.pipe(res);\r\n });\r\n});\r\n\r\nserver.listen(80);<\/code><\/pre>\n\u70ba\u60a8\u7684\u9999\u6e2f\u4f3a\u670d\u5668\u79df\u7528\u9078\u64c7\u6b63\u78ba\u7684\u4fdd\u8b77<\/strong><\/h2>\n
\n
\u7d50\u8ad6\uff1a\u5236\u5b9a\u60a8\u7684DDoS\u9632\u79a6\u7b56\u7565<\/strong><\/h2>\n