1.4 \u8edf\u9ad4\u8207\u8a2d\u5b9a\u5c64\u9762\u7684\u4f4e\u6548\u554f\u984c<\/h3>\n

\n
• \u4f5c\u696d\u7cfb\u7d71\u6838\u5fc3\u672a\u6700\u4f73\u5316\uff1a\u9810\u8a2d\u7684\u7cfb\u7d71\u8a2d\u5b9a\uff08\u5982Linux TCP\u5354\u5b9a\u5806\u758a\u53c3\u6578\uff09\u672a\u91dd\u5c0d\u9ad8\u6548\u80fd\u7db2\u8def\u5834\u666f\u5b9a\u5236\u3002\u672a\u8abf\u6574TCP\u8996\u7a97\u7e2e\u653e\u3001SYN\u6cdb\u6d2a\u9632\u8b77\u3001\u4fdd\u6d3b\u903e\u6642\u7b49\u53c3\u6578\uff0c\u6703\u9650\u5236\u7db2\u8def\u541e\u5410\u91cf\u3002<\/li>\n
• \u6578\u64da\u5eab\u6548\u80fd\u554f\u984c\uff1a\u672a\u52a0\u7d22\u5f15\u7684\u67e5\u8a62\u3001\u4f4e\u6548\u7684\u95dc\u806f\u67e5\u8a62\u3001\u7f3a\u5c11\u67e5\u8a62\u5feb\u53d6\uff08\u5982MySQL query cache\u6216PostgreSQL pg_prewarm\uff09\uff0c\u6703\u8feb\u4f7f\u6578\u64da\u5eab\u57f7\u884c\u5168\u8868\u6383\u63cf\uff0c\u6d88\u8017\u5927\u91cfCPU\u548cI\/O\u8cc7\u6e90\u3002<\/li>\n
• \u975c\u614b\u8cc7\u6e90\u672a\u58d3\u7e2e\uff1a\u672a\u6700\u4f73\u5316\u7684\u5716\u7247\uff08\u672a\u58d3\u7e2e\u7684PNG\/JPEG\uff09\u3001\u672a\u58d3\u7e2e\u7684JS\/CSS\u6a94\u6848\uff0c\u4ee5\u53ca\u672a\u555f\u7528Gzip\/Brotli\u58d3\u7e2e\uff0c\u6703\u589e\u52a0\u50b3\u8f38\u8f09\u8377\u5927\u5c0f\uff0c\u5c0e\u81f4\u50b3\u8f38\u8017\u6642\u5ef6\u9577\u2014\u2014\u5728\u983b\u5bec\u6709\u9650\u7684\u8de8\u5883\u93c8\u8def\u4e2d\u5c24\u70ba\u660e\u986f\u3002<\/li>\n
• \u7f3a\u5c11\u5feb\u53d6\u5c64\uff1a\u672a\u90e8\u7f72\u61c9\u7528\u7d1a\u5feb\u53d6\uff08\u5982Redis\u3001Memcached\uff09\u6216\u672a\u6574\u5408CDN\uff0c\u6703\u5c0e\u81f4\u4f3a\u670d\u5668\u9700\u91cd\u65b0\u8655\u7406\u6bcf\u4e00\u6b21\u8acb\u6c42\uff0c\u800c\u975e\u76f4\u63a5\u8fd4\u56de\u5feb\u53d6\u5167\u5bb9\uff0c\u9032\u800c\u589e\u52a0\u4f3a\u670d\u5668\u8ca0\u8f09\u548c\u5b58\u53d6\u5ef6\u9072\u3002<\/li>\n<\/ul>\n

  1.5 \u5916\u90e8\u6280\u8853\u56e0\u7d20<\/h3>\n

  \n
  • \u5206\u6563\u5f0f\u963b\u65b7\u670d\u52d9\uff08DDoS\uff09\u653b\u64ca\uff1a\u6d41\u91cf\u578bDDoS\u653b\u64ca\uff08\u5982UDP\u6cdb\u6d2a\uff09\u6703\u5360\u6eff\u983b\u5bec\uff0c\u61c9\u7528\u5c64\u653b\u64ca\uff08\u5982HTTP\u6cdb\u6d2a\uff09\u5247\u6d88\u8017CPU\/\u8a18\u61b6\u9ad4\u8cc7\u6e90\u2014\u2014\u5169\u985e\u653b\u64ca\u90fd\u6703\u5c0e\u81f4\u5408\u6cd5\u6d41\u91cf\u7684\u5b58\u53d6\u6548\u80fd\u4e0b\u964d\u3002<\/li>\n
  • \u50b3\u8f38\u71df\u904b\u5546\u6545\u969c\uff1a\u570b\u969b\u50b3\u8f38\u71df\u904b\u5546\uff08\u5982\u4e00\u7d1aISP\uff09\u5076\u723e\u6703\u51fa\u73fe\u6545\u969c\u6216\u8def\u7531\u554f\u984c\uff0c\u5c0e\u81f4\u7f8e\u570b\u8207\u5176\u4ed6\u5730\u5340\u7684\u7db2\u8def\u9023\u7dda\u4e2d\u65b7\u3002<\/li>\n
  • \u4f75\u767c\u7ba1\u7406\u4e0d\u7576\uff1aWeb\u4f3a\u670d\u5668\u8a2d\u5b9a\u4e0d\u5408\u7406\uff08\u5982Nginx\/Apache\u5de5\u4f5c\u7a0b\u5e8f\u6578\u4e0d\u8db3\uff09\u6216\u672a\u90e8\u7f72\u8ca0\u8f09\u5e73\u8861\uff0c\u6703\u5c0e\u81f4\u6d41\u91cf\u5c16\u5cf0\u671f\u9023\u7dda\u6392\u968a\uff0c\u9032\u800c\u5f15\u767c\u8acb\u6c42\u903e\u6642\u548c\u56de\u61c9\u7de9\u6162\u3002<\/li>\n<\/ul>\n

    [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text css=””]<\/p>\n

    \u4e8c\u3001\u7d93\u6975\u5ba2\u9a57\u8b49\u7684\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u901f\u5ea6\u6700\u4f73\u5316\u65b9\u6848<\/strong><\/h2>\n

    \u89e3\u6c7a\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u901f\u5ea6\u6162\u7684\u554f\u984c\uff0c\u9700\u8981\u63a1\u7528\u5206\u5c64\u7684\u6280\u8853\u65b9\u6848\u2014\u2014\u91dd\u5c0d\u6027\u6700\u4f73\u5316\u786c\u9ad4\u3001\u7db2\u8def\u3001\u8edf\u9ad4\u548c\u57fa\u790e\u8a2d\u65bd\u5c64\u9762\u7684\u554f\u984c\u3002\u4ee5\u4e0b\u662f\u70ba\u6280\u8853\u4eba\u54e1\u91cf\u8eab\u5b9a\u5236\u7684\u53ef\u843d\u5730\u6700\u4f73\u5316\u63aa\u65bd\uff1a<\/p>\n

    2.1 \u786c\u9ad4\u5c64\u9762\u6700\u4f73\u5316<\/h3>\n

    \n
    1. \u5408\u7406\u8a2d\u5b9a\u904b\u7b97\u8cc7\u6e90\uff1a\u6839\u64da\u696d\u52d9\u8ca0\u8f09\u5339\u914dCPU\u6838\u5fc3\u6578\u3001\u8a18\u61b6\u9ad4\u548c\u5132\u5b58\u8cc7\u6e90\u3002\u5c0d\u65bc\u52d5\u614b\u61c9\u7528\uff08\u5982\u96fb\u5546\u5e73\u53f0\uff09\uff0c\u5efa\u8b70\u81f3\u5c11\u914d\u7f6e4\u68388GB\u8a18\u61b6\u9ad4\uff0c\u4ee5\u7121\u7af6\u722d\u5730\u8655\u7406\u4f75\u767c\u8acb\u6c42\u3002<\/li>\n
    2. \u5347\u7d1a\u81f3SSD\u6216NVMe\u5132\u5b58\uff1aNVMe SSD\u7684I\/O\u541e\u5410\u91cf\u6bd4SATA SSD\u5feb10\u500d\uff0c\u6bd4HDD\u5feb100\u500d\u2014\u2014\u9019\u5c0d\u6578\u64da\u5eab\u3001\u5feb\u53d6\u5c64\u548c\u4f4e\u5ef6\u9072\u6578\u64da\u5b58\u53d6\u578b\u61c9\u7528\u81f3\u95dc\u91cd\u8981\u3002<\/li>\n
    3. \u907f\u958b\u8d85\u552e\u7684\u4f3a\u670d\u5668\u79df\u7528\u65b9\u6848\uff1a\u9078\u64c7\u8cc7\u6e90\u6709\u4fdd\u969c\u7684\u5c08\u7528\u4f3a\u670d\u5668\u79df\u7528\u65b9\u6848\u6216\u96f2\u7aef\u57f7\u884c\u500b\u9ad4\uff08\u5982\u975e\u8d85\u552e\u7684vCPU\uff09\uff0c\u907f\u514d\u8207\u5176\u4ed6\u4f7f\u7528\u8005\u722d\u6436\u8cc7\u6e90\u3002<\/li>\n
    4. \u90e8\u7f72\u786c\u9ad4\u5099\u63f4\uff1a\u5c0d\u65bc\u6838\u5fc3\u696d\u52d9\u8ca0\u8f09\uff0c\u4f7f\u7528\u914d\u5099\u5099\u63f4\u96fb\u6e90\uff08PSU\uff09\u548cRAID\u5132\u5b58\u7684\u4f3a\u670d\u5668\uff0c\u907f\u514d\u786c\u9ad4\u6545\u969c\u5c0e\u81f4\u6548\u80fd\u4e0b\u964d\u3002<\/li>\n<\/ol>\n

       2.2 \u7db2\u8def\u5c64\u9762\u6700\u4f73\u5316\u7b56\u7565<\/h3>\n

       \n
       1. \u9078\u7528\u76f4\u9023\u4e92\u901a\u7dda\u8def\uff1a\u9078\u64c7\u914d\u5099\u76f4\u9023\u4e92\u901a\u7dda\u8def\u7684\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u65b9\u6848\uff08\u5982\u4e2d\u7f8e\u8de8\u5883\u7684CN2\u7dda\u8def\u3001\u9762\u5411\u5168\u7403\u7684\u4e00\u7d1a\u4e92\u901a\u7dda\u8def\uff09\uff0c\u6e1b\u5c11\u8def\u7531\u8df3\u6578\u548c\u5ef6\u9072\u3002\u53ef\u900f\u904eTraceroute\u3001MTR\u7b49\u5de5\u5177\u9a57\u8b49\u4e92\u901a\u72c0\u6cc1\u3002<\/li>\n
       2. \u9078\u64c7BGP\u591a\u7dda\u983b\u5bec\uff1a\u591a\u7dda\u4f3a\u670d\u5668\u79df\u7528\u65b9\u6848\u63a5\u5165\u591a\u5bb6\u50b3\u8f38\u71df\u904b\u5546\uff0cBGP\u5354\u5b9a\u53ef\u81ea\u52d5\u5c07\u6d41\u91cf\u8def\u7531\u81f3\u6700\u512a\u8def\u5f91\u2014\u2014\u9069\u5408\u4f7f\u7528\u4e0d\u540cISP\u7684\u8de8\u5883\u4f7f\u7528\u8005\u3002<\/li>\n
       3. \u9810\u7559\u5099\u63f4\u983b\u5bec\uff1a\u6309\u5cf0\u503c\u983b\u5bec\u9700\u6c42\u591a\u5206\u914d20%-30%\u7684\u983b\u5bec\uff0c\u4ee5\u61c9\u5c0d\u6d41\u91cf\u5cf0\u503c\u548cDDoS\u9632\u8b77\u9700\u6c42\uff08\u5982\u65e5\u5e38\u970010Mbps\u983b\u5bec\uff0c\u53ef\u914d\u7f6e15Mbps\uff09\u3002<\/li>\n
       4. \u6700\u4f73\u5316TCP\/IP\u53c3\u6578\uff1a\u8abf\u6574Linux\u6838\u5fc3\u53c3\u6578\uff08\u5982net.ipv4.tcp_window_scaling = 1\uff0cnet.ipv4.tcp_max_syn_backlog = 4096\uff09\u63d0\u5347\u8de8\u5883TCP\u50b3\u8f38\u6548\u80fd\u3002\u53ef\u900f\u904esysctl\u5de5\u5177\u5957\u7528\u53c3\u6578\u8abf\u6574\u3002<\/li>\n<\/ol>\n

          2.3 \u8edf\u9ad4\u8207\u8a2d\u5b9a\u8abf\u6821<\/h3>\n

          \n
          1. \u90e8\u7f72\u5feb\u53d6\u5c64\uff1a\u70ba\u9ad8\u983b\u5b58\u53d6\u6578\u64da\uff08\u5982\u4f7f\u7528\u8005\u5de5\u4f5c\u968e\u6bb5\u3001\u5546\u54c1\u5217\u8868\uff09\u90e8\u7f72\u8a18\u61b6\u9ad4\u5feb\u53d6\uff08Redis\/Memcached\uff09\uff0c\u70ba\u975c\u614b\u8cc7\u6e90\uff08\u5716\u7247\u3001JS\/CSS\uff09\u555f\u7528CDN\u5feb\u53d6\u3002\u6839\u64da\u5167\u5bb9\u65b0\u9bae\u5ea6\u8981\u6c42\u8a2d\u5b9a\u5feb\u53d6TTL\uff08\u751f\u5b58\u6642\u9593\uff09\u3002<\/li>\n
          2. \u6700\u4f73\u5316\u6578\u64da\u5eab\u6548\u80fd\uff1a\n
             \n
             • \u70ba\u9ad8\u983b\u67e5\u8a62\u6b04\u4f4d\uff08\u5982ORDER BY\u3001WHERE\u5b50\u53e5\u6d89\u53ca\u7684\u6b04\u4f4d\uff09\u65b0\u589e\u7d22\u5f15\u3002<\/li>\n
             • \u6700\u4f73\u5316\u95dc\u806f\u67e5\u8a62\uff0c\u6e1b\u5c11\u8868\u6383\u63cf\u6b21\u6578\u3002<\/li>\n
             • \u555f\u7528\u67e5\u8a62\u5feb\u53d6\uff08\u652f\u63f4\u7684\u6578\u64da\u5eab\uff09\uff0c\u6216\u4f7f\u7528\u6578\u64da\u5eab\u4ee3\u7406\uff08\u5982ProxySQL\uff09\u5be6\u73fe\u67e5\u8a62\u8def\u7531\u8207\u5feb\u53d6\u3002<\/li>\n<\/ul>\n<\/li>\n
             • \u58d3\u7e2e\u975c\u614b\u8207\u52d5\u614b\u5167\u5bb9\uff1a\u5728Web\u4f3a\u670d\u5668\uff08Nginx\/Apache\uff09\u4e0a\u555f\u7528Gzip\/Brotli\u58d3\u7e2e\uff0c\u4f7f\u7528\u5716\u7247\u6700\u4f73\u5316\u5de5\u5177\uff08\u5982Squoosh\u3001ImageMagick\uff09\u5728\u4e0d\u640d\u5931\u756b\u8cea\u7684\u524d\u63d0\u4e0b\u58d3\u7e2e\u5716\u7247\u3002\u5c07\u5716\u7247\u8f49\u63db\u70ba\u73fe\u4ee3\u683c\u5f0f\uff08WebP\u3001AVIF\uff09\u4ee5\u6e1b\u5c0f\u6a94\u6848\u9ad4\u7a4d\u3002<\/li>\n
             • \u6700\u4f73\u5316Web\u4f3a\u670d\u5668\u8a2d\u5b9a\uff1a\u8abf\u6574\u5de5\u4f5c\u7a0b\u5e8f\/\u57f7\u884c\u7dd2\u6578\u4ee5\u5339\u914dCPU\u6838\u5fc3\u6578\uff08\u5982Nginx worker_processes = auto\uff09\uff0c\u5408\u7406\u8a2d\u5b9a\u9023\u7dda\u903e\u6642\u6642\u9593\uff08\u5982keepalive_timeout = 65s\uff09\uff0c\u964d\u4f4e\u9023\u7dda\u958b\u92b7\u3002<\/li>\n
             • \u555f\u7528HTTP\/2\u6216HTTP\/3\u5354\u5b9a\uff1a\u9019\u985e\u5354\u5b9a\u652f\u63f4\u591a\u8def\u8907\u7528\uff08\u55ae\u4e00\u9023\u7dda\u5e73\u884c\u8655\u7406\u591a\u500b\u8acb\u6c42\uff09\u548c\u8868\u982d\u58d3\u7e2e\uff0c\u53ef\u964d\u4f4e\u8de8\u5883\u6d41\u91cf\u7684\u5ef6\u9072\u3002\u9700\u78ba\u4fddWeb\u4f3a\u670d\u5668\u548cSSL\u6191\u8b49\u652f\u63f4\u8a72\u5354\u5b9a\u3002<\/li>\n<\/ol>\n

               2.4 DDoS\u9632\u8b77\u8207\u5b89\u5168\u52a0\u56fa<\/h3>\n

               \n
               1. \u90e8\u7f723\/4\u5c64\u82077\u5c64DDoS\u9632\u8b77\uff1a\u7d50\u5408\u7db2\u8def\u5c64\u9632\u8b77\uff08\u5982\u901f\u7387\u9650\u5236\u3001IP\u9ed1\u540d\u55ae\uff09\u548c\u61c9\u7528\u5c64\u9632\u8b77\uff08\u5982\u91dd\u5c0dHTTP\u6cdb\u6d2a\u7684WAF\u898f\u5247\uff09\uff0c\u5728\u4e0d\u5f71\u97ff\u5408\u6cd5\u6d41\u91cf\u7684\u524d\u63d0\u4e0b\u7de9\u89e3\u653b\u64ca\u3002<\/li>\n
               2. \u8a2d\u5b9aWeb\u61c9\u7528\u9632\u706b\u7246\uff08WAF\uff09\uff1a\u6514\u622a\u6d88\u8017\u4f3a\u670d\u5668\u8cc7\u6e90\u7684\u60e1\u610f\u8acb\u6c42\uff08\u5982SQL\u6ce8\u5165\u3001\u8de8\u7ad9\u6307\u4ee4\u78bc\u653b\u64ca\uff09\u3002\u4f7f\u7528\u9069\u914d\u696d\u52d9\u61c9\u7528\u7684\u898f\u5247\u96c6\uff08\u5982WordPress\u3001\u81ea\u8a02API\u5c08\u7528\u898f\u5247\uff09\u3002<\/li>\n
               3. \u8a2d\u5b9aIP\u767d\u540d\u55ae\uff1a\u5c07\u654f\u611f\u670d\u52d9\uff08\u5982SSH\u3001\u6578\u64da\u5eab\u9023\u63a5\u57e0\uff09\u7684\u5b58\u53d6\u6b0a\u9650\u9650\u5236\u5728\u53ef\u4fe1IP\u6bb5\u5167\uff0c\u6e1b\u5c0f\u653b\u64ca\u9762\uff0c\u964d\u4f4e\u672a\u6388\u6b0a\u8acb\u6c42\u7684\u8cc7\u6e90\u6d88\u8017\u3002<\/li>\n<\/ol>\n

                  [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text css=””]<\/p>\n

                  \u4e09\u3001\u9078\u64c7\u9ad8\u6548\u80fd\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u7684\u6280\u8853\u8a55\u5224\u6a19\u6e96<\/strong><\/h2>\n

                  \u82e5\u8981\u9078\u64c7\u9069\u5408\u8de8\u5883\u5b58\u53d6\u7684\u9ad8\u6548\u80fd\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u65b9\u6848\uff0c\u9700\u512a\u5148\u95dc\u6ce8\u4ee5\u4e0b\u6280\u8853\u56e0\u7d20\uff0c\u800c\u975e\u50f9\u683c\u6216\u884c\u92b7\u5671\u982d\uff1a<\/p>\n

                  \n
                  • \u7db2\u8def\u4e92\u806f\u4e92\u901a\uff1a\u900f\u904ePeeringDB\u7b49\u5de5\u5177\uff0c\u9a57\u8b49\u670d\u52d9\u5546\u662f\u5426\u8207\u76ee\u6a19\u5730\u5340\u7684\u4e3b\u6d41ISP\uff08\u5982\u4e2d\u570b\u96fb\u4fe1\u3001\u6c83\u9054\u8c50\uff09\u5efa\u7acb\u76f4\u9023\u4e92\u901a\u3002<\/li>\n
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