{"id":13262,"date":"2024-07-04T15:23:48","date_gmt":"2024-07-04T07:23:48","guid":{"rendered":"https:\/\/www.simcentric.com\/uncategorized-tc\/what-is-a-ddos-attack-how-do-you-protect-against-it\/"},"modified":"2024-07-04T15:29:34","modified_gmt":"2024-07-04T07:29:34","slug":"what-is-a-ddos-attack-how-do-you-protect-against-it","status":"publish","type":"post","link":"https:\/\/www.simcentric.com\/tc\/hong-kong-dedicated-server-tc\/what-is-a-ddos-attack-how-do-you-protect-against-it\/","title":{"rendered":"\u4ec0\u9ebc\u662fDDoS\u653b\u64ca\uff1f\u5982\u4f55\u9632\u7bc4\uff1f"},"content":{"rendered":"

\u5728\u7576\u4eca\u7684\u6578\u4f4d\u6642\u4ee3\uff0c\u5206\u6563\u5f0f\u963b\u65b7\u670d\u52d9\uff08DDoS\uff09\u653b\u64ca\u5df2\u6210\u70ba\u4f01\u696d\u548c\u7d44\u7e54\u9762\u81e8\u7684\u91cd\u5927\u6311\u6230\u3002\u9019\u4e9b\u60e1\u610f\u653b\u64ca\u65e8\u5728\u900f\u904e\u5927\u91cf\u6d41\u91cf\u6df9\u6c92\u76ee\u6a19\u7cfb\u7d71\u548c\u7db2\u7ad9\uff0c\u4f7f\u5176\u7121\u6cd5\u70ba\u5408\u6cd5\u7528\u6236\u5b58\u53d6\u3002\u70ba\u4e86\u61c9\u5c0d\u9019\u4e00\u65e5\u76ca\u56b4\u91cd\u7684\u5a01\u8105\uff0c\u6280\u8853\u5c08\u696d\u4eba\u58eb\u6b63\u5728\u8f49\u5411Anti-DDoS\u4f3a\u670d\u5668<\/a><\/strong>\u4f5c\u70ba\u5f37\u5927\u7684\u9632\u8b77\u89e3\u6c7a\u65b9\u6848\u3002\u5728\u9019\u4efd\u5168\u9762\u6307\u5357\u4e2d\uff0c\u6211\u5011\u5c07\u63a2\u8a0eDDoS\u653b\u64ca\u7684\u8907\u96dc\u6027\u3001\u6cd5\u5f8b\u5f71\u97ff\u4ee5\u53ca\u5982\u4f55\u6709\u6548\u5730\u4fdd\u8b77\u60a8\u7684\u7cfb\u7d71\u3002<\/p>\n

\u4ec0\u9ebc\u662fDDoS\u653b\u64ca\uff1f<\/strong><\/h2>\n

DDoS\u653b\u64ca\u6d89\u53ca\u591a\u500b\u88ab\u5165\u4fb5\u7684\u96fb\u8166\u7cfb\u7d71\uff0c\u7a31\u70ba\u6bad\u5c4d\u7db2\u8def\uff0c\u5411\u76ee\u6a19\u7cfb\u7d71\u6216\u7db2\u7ad9\u767c\u9001\u5927\u91cf\u8acb\u6c42\u3002\u5176\u76ee\u7684\u662f\u8017\u76e1\u76ee\u6a19\u7684\u8cc7\u6e90\uff0c\u5982\u7db2\u8def\u983b\u5bec\u548c\u4f3a\u670d\u5668\u8655\u7406\u80fd\u529b\uff0c\u4f7f\u5176\u7121\u6cd5\u8655\u7406\u5408\u6cd5\u6d41\u91cf\u3002\u653b\u64ca\u53ef\u4ee5\u5f9e\u5404\u7a2e\u4f86\u6e90\u767c\u8d77\uff0c\u5305\u62ec\u53d7\u611f\u67d3\u7684\u88dd\u7f6e\u3001\u79df\u7528\u7684\u6bad\u5c4d\u7db2\u8def\uff0c\u751a\u81f3\u662f\u96f2\u7aef\u57fa\u790e\u8a2d\u65bd\uff0c\u9019\u4f7f\u5f97\u653b\u64ca\u96e3\u4ee5\u8ffd\u8e64\u548c\u7de9\u89e3\u3002<\/p>\n

\u4ec0\u9ebc\u662fAnti-DDoS\u4f3a\u670d\u5668\uff1f<\/strong><\/h2>\n

Anti-DDoS\u4f3a\u670d\u5668\u5145\u7576\u60a8\u7684\u7cfb\u7d71\u548c\u5165\u7ad9\u653b\u64ca\u6d41\u91cf\u4e4b\u9593\u7684\u4fdd\u8b77\u5c4f\u969c\u3002\u9019\u4e9b\u5c08\u7528\u4f3a\u670d\u5668\u65e8\u5728\u5373\u6642\u5206\u6790\u548c\u904e\u6ffe\u6d41\u91cf\uff0c\u8b58\u5225\u4e26\u963b\u6b62\u60e1\u610f\u8acb\u6c42\uff0c\u540c\u6642\u5141\u8a31\u5408\u6cd5\u6d41\u91cf\u901a\u904e\u3002\u4ee5\u4e0b\u662fAnti-DDoS\u4f3a\u670d\u5668\u7684\u5de5\u4f5c\u539f\u7406\uff1a<\/p>\n

    \n
  1. \u6d41\u91cf\u6e05\u6d17\uff1a<\/strong>Anti-DDoS\u4f3a\u670d\u5668\u63a1\u7528\u5148\u9032\u7684\u6f14\u7b97\u6cd5\u548c\u5a01\u8105\u60c5\u5831\u4f86\u6e05\u6d17\u50b3\u5165\u6d41\u91cf\uff0c\u6aa2\u6e2c\u4e26\u4e1f\u68c4\u8868\u73fe\u51fa\u653b\u64ca\u7279\u5fb5\u7684\u8cc7\u6599\u5305\uff0c\u5982\u9ad8\u6d41\u91cf\u3001\u91cd\u8907\u6a21\u5f0f\u6216\u7570\u5e38\u884c\u70ba\u3002<\/li>\n
  2. \u81ea\u9069\u61c9\u904e\u6ffe\uff1a<\/strong>\u96a8\u8457\u653b\u64ca\u6a21\u5f0f\u7684\u6f14\u8b8a\uff0cAnti-DDoS\u4f3a\u670d\u5668\u4e0d\u65b7\u8abf\u6574\u5176\u904e\u6ffe\u898f\u5247\uff0c\u4ee5\u4fdd\u6301\u9818\u5148\u65bc\u653b\u64ca\u8005\u3002\u6a5f\u5668\u5b78\u7fd2\u6280\u8853\u88ab\u7528\u65bc\u8b58\u5225\u65b0\u7684\u653b\u64ca\u5411\u91cf\u4e26\u81ea\u52d5\u66f4\u65b0\u9632\u79a6\u6a5f\u5236\u3002<\/li>\n
  3. \u5206\u6563\u5f0f\u7de9\u89e3\uff1a<\/strong>Anti-DDoS\u4f3a\u670d\u5668\u901a\u5e38\u4ee5\u5206\u6563\u5f0f\u65b9\u5f0f\u90e8\u7f72\uff0c\u5728\u4e0d\u540c\u5730\u7406\u5340\u57dfstrategically\u5e03\u7f6e\u591a\u500b\u7bc0\u9ede\u3002\u9019\u7a2e\u5206\u6563\u5f0f\u65b9\u6cd5\u5141\u8a31\u9ad8\u6548\u5438\u6536\u548c\u7de9\u89e3\u6d41\u91cf\uff0c\u9632\u6b62\u4efb\u4f55\u55ae\u9ede\u6545\u969c\u3002<\/li>\n<\/ol>\n
    \/\/ \u4f7f\u7528Nginx\u914d\u7f6eAnti-DDoS\u670d\u52d9\u5668\u7684\u793a\u4f8b\u914d\u7f6e\u7247\u6bb5\r\nhttp {\r\n    # \u555f\u7528DDoS\u9632\u8b77\r\n    limit_req_zone $binary_remote_addr zone=one:10m rate=10r\/s;\r\n    limit_conn_zone $binary_remote_addr zone=addr:10m;\r\n\r\n    server {\r\n        # \u5c0d\u50b3\u5165\u8acb\u6c42\u61c9\u7528DDoS\u9632\u8b77\r\n        location \/ {\r\n            limit_req zone=one burst=20 nodelay;\r\n            limit_conn addr 20;\r\n            proxy_pass http:\/\/backend;\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n
    DDoS\u653b\u64ca\u662f\u5426\u9055\u6cd5\uff1f<\/strong><\/h2>\n
    \u5728\u5927\u591a\u6578\u570b\u5bb6\uff0cDDoS\u653b\u64ca\u662f\u975e\u6cd5\u7684\uff0c\u56e0\u70ba\u5b83\u5011\u6703\u7d66\u76ee\u6a19\u7d44\u7e54\u9020\u6210\u56b4\u91cd\u7684\u8ca1\u52d9\u548c\u71df\u904b\u640d\u5931\u3002\u767c\u52d5DDoS\u653b\u64ca\u7684\u8087\u4e8b\u8005\u53ef\u80fd\u9762\u81e8\u56b4\u53b2\u7684\u8655\u7f70\uff0c\u5305\u62ec\u7f70\u6b3e\u548c\u76e3\u7981\u3002\u7136\u800c\uff0c\u6bad\u5c4d\u7db2\u8def\u63d0\u4f9b\u7684\u533f\u540d\u6027\u548c\u7db2\u969b\u7db2\u8def\u7684\u5168\u7403\u6027\u8cea\u4f7f\u5f97\u8b58\u5225\u548c\u8d77\u8a34\u653b\u64ca\u8005\u8b8a\u5f97\u5f88\u6709\u6311\u6230\u6027\u3002\u5c0d\u7d44\u7e54\u4f86\u8aaa\uff0c\u63a1\u53d6\u4e3b\u52d5\u63aa\u65bd\u4fdd\u8b77\u81ea\u5df1\u514d\u53d7DDoS\u653b\u64ca\uff0c\u4e26\u5411\u76f8\u95dc\u90e8\u9580\u5831\u544a\u4efb\u4f55\u4e8b\u4ef6\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n
    \u70ba\u4ec0\u9ebc\u6709\u4eba\u6703\u767c\u52d5DDoS\u653b\u64ca\uff1f<\/strong><\/h2>\n
    \u4e86\u89e3\u767c\u52d5DDoS\u653b\u64ca\u80cc\u5f8c\u7684\u52d5\u6a5f\u53ef\u4ee5\u5e6b\u52a9\u7d44\u7e54\u66f4\u597d\u5730\u8a55\u4f30\u98a8\u96aa\u4e26\u5be6\u65bd\u9069\u7576\u7684\u9632\u79a6\u3002\u767c\u8d77DDoS\u653b\u64ca\u7684\u5e38\u898b\u539f\u56e0\u5305\u62ec\uff1a<\/p>\n