\u56de\u56fd\u8bbf\u95ee\u5ef6\u8fdf\u9ad8\u3001\u5361\u987f\u6216\u9891\u7e41\u65ad\u6d41\uff0c\u901a\u5e38\u7531\u7269\u7406\u8ddd\u79bb\u3001\u8def\u7531\u8df3\u6570\u3001\u8282\u70b9\u62e5\u5835\u4ee5\u53ca\u5ba2\u6237\u7aef\u914d\u7f6e\u4e0d\u5f53\u5171\u540c\u5bfc\u81f4\u3002\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898\u7684\u6838\u5fc3\u4e0d\u5728\u4e8e\u66f4\u6362\u66f4\u591a\u8282\u70b9\uff0c\u800c\u5728\u4e8e\u901a\u8fc7\u7cfb\u7edf\u5316\u7684\u6392\u67e5\uff0c\u627e\u5230\u5ef6\u8fdf\u4ea7\u751f\u7684\u5177\u4f53\u73af\u8282\uff0c\u5e76\u9488\u5bf9\u6027\u5730\u4f18\u5316\u7f51\u7edc\u8def\u5f84\u548c\u8f6f\u4ef6\u8bbe\u7f6e\u3002<\/p>\n
\u672c\u6587\u5c06\u6309\u7167\u201c\u73b0\u8c61\u786e\u8ba4 -> \u539f\u56e0\u6392\u67e5 -> \u5ba2\u6237\u7aef\u4f18\u5316 -> \u7ebf\u8def\u9009\u62e9 -> \u9a8c\u8bc1\u6d4b\u8bd5\u201d\u7684\u903b\u8f91\u987a\u5e8f\uff0c\u63d0\u4f9b\u4e00\u5957\u53ef\u64cd\u4f5c\u7684\u5ef6\u8fdf\u4f18\u5316\u65b9\u6848\u3002<\/p>\n
\u5728\u8c03\u6574\u4efb\u4f55\u8bbe\u7f6e\u4e4b\u524d\uff0c\u5fc5\u987b\u5148\u660e\u786e\u5ef6\u8fdf\u7684\u6e90\u5934\u3002\u5982\u679c\u95ee\u9898\u51fa\u5728\u672c\u5730\u7f51\u7edc\u6216\u76ee\u6807\u670d\u52a1\u5668\u672c\u8eab\uff0c\u4f18\u5316\u4ee3\u7406\u8282\u70b9\u5c06\u6beb\u65e0\u610f\u4e49\u3002<\/p>\n
\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\uff08\u5982 `ping` \u6216 `tracert`\/`traceroute`\uff09\u8fdb\u884c\u5bf9\u6bd4\u6d4b\u8bd5\uff0c\u8fd9\u662f\u6700\u76f4\u63a5\u7684\u6392\u67e5\u624b\u6bb5\u3002<\/p>\n
* \u6d4b\u8bd5\u672c\u5730\u7f51\u7edc\uff1a<\/strong> \u5728\u7ec8\u7aef\u4e2d ping \u4e00\u4e2a\u7a33\u5b9a\u7684\u56fd\u5185\u57df\u540d\uff08\u5982 `ping www.baidu.com`\uff09\u3002\u5982\u679c\u5ef6\u8fdf\u6b63\u5e38\uff08\u901a\u5e38\u5728 20-50ms \u4ee5\u5185\uff0c\u89c6\u5730\u533a\u800c\u5b9a\uff09\uff0c\u8bf4\u660e\u4f60\u7684\u672c\u5730\u5bbd\u5e26\u548c\u8fd0\u8425\u5546\u94fe\u8def\u6b63\u5e38\u3002 \u6709\u65f6\u5ef6\u8fdf\u9ad8\u5e76\u975e\u4f60\u7684\u7f51\u7edc\u95ee\u9898\uff0c\u800c\u662f\u76ee\u6807\u7f51\u7ad9\u5bf9\u6d77\u5916 IP \u7684\u9650\u5236\u6216\u670d\u52a1\u5668\u8d1f\u8f7d\u8fc7\u9ad8\u3002<\/p>\n * \u5c1d\u8bd5\u4e0d\u540c\u76ee\u6807\uff1a<\/strong> \u5c1d\u8bd5\u8bbf\u95ee\u5176\u4ed6\u56fd\u5185\u7f51\u7ad9\uff08\u5982\u77e5\u4e4e\u3001\u8c46\u74e3\u3001\u89c6\u9891\u5e73\u53f0\uff09\u3002\u5982\u679c\u53ea\u6709\u7279\u5b9a\u7f51\u7ad9\u5ef6\u8fdf\u9ad8\uff0c\u800c\u5176\u4ed6\u7f51\u7ad9\u6b63\u5e38\uff0c\u5219\u95ee\u9898\u51fa\u5728\u8be5\u7f51\u7ad9\u7684 CDN \u8c03\u5ea6\u6216\u9632\u706b\u5899\u7b56\u7565\u4e0a\uff0c\u800c\u975e\u4f60\u7684\u4ee3\u7406\u5de5\u5177\u3002 \u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u901a\u8fc7\u8c03\u6574\u4ee3\u7406\u5ba2\u6237\u7aef\u7684\u914d\u7f6e\uff0c\u53ef\u4ee5\u663e\u8457\u964d\u4f4e\u5ef6\u8fdf\u3002\u9519\u8bef\u7684\u8bbe\u7f6e\u4f1a\u5bfc\u81f4\u6570\u636e\u5728\u672c\u5730\u8fdb\u884c\u4e0d\u5fc5\u8981\u7684\u4e8c\u6b21\u52a0\u5bc6\u6216\u8def\u7531\u6df7\u4e71\u3002<\/p>\n DNS \u89e3\u6790\u9519\u8bef\u662f\u5bfc\u81f4\u201c\u80fd\u8fde\u63a5\u4f46\u8bbf\u95ee\u6162\u201d\u7684\u5e38\u89c1\u539f\u56e0\u3002\u5982\u679c DNS \u89e3\u6790\u5230\u4e86\u9519\u8bef\u7684 CDN \u8282\u70b9\u6216\u6d77\u5916\u8282\u70b9\uff0c\u4f1a\u5bfc\u81f4\u9ad8\u5ef6\u8fdf\u3002<\/p>\n * \u542f\u7528 DNS \u5206\u6d41\/\u76f4\u8fde\uff1a<\/strong> \u786e\u4fdd\u5ba2\u6237\u7aef\u914d\u7f6e\u4e2d\uff0c\u56fd\u5185\u57df\u540d\uff08CN Domain\uff09\u8bbe\u7f6e\u4e3a\u201c\u76f4\u8fde\uff08Direct\uff09\u201d\u6216\u201c\u9ed8\u8ba4\u201d\uff0c\u800c\u975e\u901a\u8fc7\u4ee3\u7406\u3002\u8fd9\u6837\u56fd\u5185\u7f51\u7ad9\u7684 DNS \u89e3\u6790\u7531\u672c\u5730\u8fd0\u8425\u5546\u5b8c\u6210\uff0c\u901f\u5ea6\u6700\u5feb\u3002 MTU \u8bbe\u7f6e\u4e0d\u5f53\u4f1a\u5bfc\u81f4\u6570\u636e\u5305\u5206\u7247\uff0c\u4ece\u800c\u589e\u52a0\u5ef6\u8fdf\u548c\u4e22\u5305\u7387\uff0c\u5c24\u5176\u662f\u5728\u7ecf\u8fc7\u591a\u4e2a\u8def\u7531\u5668\u65f6\u3002<\/p>\n * \u6807\u51c6\u503c\uff1a<\/strong> \u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0cMTU \u5e94\u8bbe\u7f6e\u4e3a `1500`\uff08\u4ee5\u592a\u7f51\u6807\u51c6\uff09\u6216 `1400`\uff08\u5982\u679c\u7ecf\u8fc7\u67d0\u4e9b\u7279\u6b8a\u96a7\u9053\uff09\u3002 * \u7981\u7528 IPv6 \u652f\u6301\uff08\u5982\u679c\u4e0d\u9700\u8981\uff09\uff1a<\/strong> \u5982\u679c\u4f60\u7684\u672c\u5730\u7f51\u7edc\u6216\u4ee3\u7406\u8282\u70b9\u4e0d\u652f\u6301 IPv6\uff0c\u4f46\u5ba2\u6237\u7aef\u5f00\u542f\u4e86 IPv6 \u4f18\u5148\uff0c\u4f1a\u5bfc\u81f4\u8fde\u63a5\u5c1d\u8bd5\u8d85\u65f6\uff0c\u589e\u52a0\u5ef6\u8fdf\u3002\u5728\u5ba2\u6237\u7aef\u8bbe\u7f6e\u4e2d\uff0c\u660e\u786e\u6307\u5b9a\u4ec5\u4f7f\u7528 IPv4\uff0c\u6216\u5173\u95ed IPv6 \u652f\u6301\u3002 \u4e0d\u540c\u7684\u534f\u8bae\u548c\u52a0\u5bc6\u7b97\u6cd5\u5bf9 CPU \u7684\u5360\u7528\u7387\u548c\u7f51\u7edc\u5f00\u9500\u5f71\u54cd\u5de8\u5927\u3002<\/p>\n * TLS \u52a0\u5bc6\u7684\u5f00\u9500\uff1a<\/strong> \u5982\u679c\u4f7f\u7528\u7684\u662f V2Ray \u7b49\u652f\u6301 TLS \u7684\u534f\u8bae\uff0cTLS \u63e1\u624b\u548c\u52a0\u5bc6\u8fc7\u7a0b\u4f1a\u589e\u52a0\u5ef6\u8fdf\u3002\u5728\u5e26\u5bbd\u5145\u8db3\u7684\u60c5\u51b5\u4e0b\uff0cTLS \u80fd\u63d0\u4f9b\u4f2a\u88c5\u6548\u679c\uff0c\u4f46\u5ef6\u8fdf\u901a\u5e38\u9ad8\u4e8e\u672a\u52a0\u5bc6\u6216\u8f7b\u91cf\u52a0\u5bc6\u534f\u8bae\u3002 \u5982\u679c\u5ba2\u6237\u7aef\u8bbe\u7f6e\u65e0\u8bef\uff0c\u5ef6\u8fdf\u95ee\u9898\u901a\u5e38\u6e90\u4e8e\u8282\u70b9\u672c\u8eab\u7684\u8d28\u91cf\u3002<\/p>\n * \u5730\u7406\u4f4d\u7f6e\uff1a<\/strong> \u4f18\u5148\u9009\u62e9\u8ddd\u79bb\u4f60\u7269\u7406\u4f4d\u7f6e\u8f83\u8fd1\u7684\u8282\u70b9\u3002\u4f8b\u5982\uff0c\u5728\u4e2d\u56fd\u4e1c\u90e8\uff0c\u9009\u62e9\u65e5\u672c\u3001\u97e9\u56fd\u6216\u65b0\u52a0\u5761\u7684\u8282\u70b9\u901a\u5e38\u6bd4\u9009\u62e9\u7f8e\u56fd\u6216\u6b27\u6d32\u7684\u8282\u70b9\u5ef6\u8fdf\u4f4e\u5f97\u591a\u3002 * BGP \u591a\u7ebf\u8282\u70b9\uff1a<\/strong> \u9009\u62e9\u652f\u6301 BGP\uff08\u8fb9\u754c\u7f51\u5173\u534f\u8bae\uff09\u7684\u8282\u70b9\uff0c\u8fd9\u4e9b\u8282\u70b9\u901a\u5e38\u80fd\u81ea\u52a8\u9009\u62e9\u6700\u4f18\u8def\u5f84\u56de\u56fd\uff0c\u51cf\u5c11\u8def\u7531\u8df3\u6570\u3002 * \u5b9a\u671f\u66f4\u65b0\u8ba2\u9605\uff1a<\/strong> \u8282\u70b9\u72b6\u6001\u4f1a\u968f\u65f6\u95f4\u53d8\u5316\u3002\u5b9a\u671f\u66f4\u65b0\u8ba2\u9605\uff0c\u83b7\u53d6\u6700\u65b0\u7684\u8282\u70b9\u5217\u8868\uff0c\u907f\u514d\u4f7f\u7528\u5df2\u5931\u6548\u6216\u8fc7\u8f7d\u7684\u65e7\u8282\u70b9\u3002 \u672c\u5730\u8bbe\u5907\u7684\u7f51\u7edc\u6808\u914d\u7f6e\u4e5f\u4f1a\u5f71\u54cd\u6700\u7ec8\u4f53\u9a8c\u3002<\/p>\n * TCP \u7a97\u53e3\u5927\u5c0f\uff1a<\/strong> \u5728\u6ce8\u518c\u8868\u4e2d\u8c03\u6574 `TcpWindowSize`\uff0c\u5c06\u5176\u8bbe\u7f6e\u4e3a `65535` \u6216\u66f4\u5927\uff0c\u4ee5\u4f18\u5316\u5927\u6d41\u91cf\u4f20\u8f93\u3002 * \u7f51\u7edc\u670d\u52a1\u6392\u5e8f\uff1a<\/strong> \u5728\u201c\u7cfb\u7edf\u8bbe\u7f6e\u201d > \u201c\u7f51\u7edc\u201d\u4e2d\uff0c\u786e\u4fdd\u4ee3\u7406\u63a5\u53e3\u7684\u670d\u52a1\u987a\u5e8f\u4f4d\u4e8e\u4ee5\u592a\u7f51\/Wi-Fi \u4e4b\u524d\uff0c\u6216\u8005\u76f4\u63a5\u4f7f\u7528\u5ba2\u6237\u7aef\u7684\u7cfb\u7edf\u4ee3\u7406\u529f\u80fd\uff0c\u907f\u514d\u624b\u52a8\u914d\u7f6e\u7cfb\u7edf\u4ee3\u7406\u5e26\u6765\u7684\u51b2\u7a81\u3002 * \u540e\u53f0\u9650\u5236\uff1a<\/strong> \u786e\u4fdd\u4ee3\u7406\u5ba2\u6237\u7aef\u5728\u540e\u53f0\u8fd0\u884c\u65f6\u4e0d\u88ab\u7cfb\u7edf\u6740\u6b7b\u3002\u5728\u7535\u6c60\u4f18\u5316\u8bbe\u7f6e\u4e2d\uff0c\u5c06\u5ba2\u6237\u7aef\u8bbe\u7f6e\u4e3a\u201c\u65e0\u9650\u5236\u201d\u6216\u201c\u5141\u8bb8\u540e\u53f0\u6d3b\u52a8\u201d\u3002 \u4f18\u5316\u540e\uff0c\u9700\u8981\u9a8c\u8bc1\u6548\u679c\u5e76\u5efa\u7acb\u76d1\u63a7\u673a\u5236\u3002<\/p>\n * Speedtest\uff1a<\/strong> \u4f7f\u7528 Speedtest \u7b49\u5de5\u5177\uff0c\u5206\u522b\u6d4b\u8bd5\u76f4\u8fde\u548c\u4ee3\u7406\u6a21\u5f0f\u4e0b\u7684\u4e0b\u8f7d\/\u4e0a\u4f20\u901f\u5ea6\u548c\u5ef6\u8fdf\u3002\u6ce8\u610f\uff0c\u6d4b\u901f\u670d\u52a1\u5668\u5e94\u9009\u62e9\u56fd\u5185\u8282\u70b9\uff0c\u4ee5\u6a21\u62df\u771f\u5b9e\u56de\u56fd\u8bbf\u95ee\u4f53\u9a8c\u3002 * \u67e5\u770b\u5ba2\u6237\u7aef\u65e5\u5fd7\uff1a<\/strong> \u5982\u679c\u8fde\u63a5\u4e0d\u7a33\u5b9a\uff0c\u67e5\u770b\u5ba2\u6237\u7aef\u7684\u8be6\u7ec6\u65e5\u5fd7\u3002\u5bfb\u627e `timeout`\u3001`drop`\u3001`reset` \u7b49\u5173\u952e\u8bcd\uff0c\u8fd9\u4e9b\u901a\u5e38\u8868\u793a\u8fde\u63a5\u95ee\u9898\u3002 * \u591a\u8282\u70b9\u5907\u4efd\uff1a<\/strong> \u6c38\u8fdc\u4e0d\u8981\u4f9d\u8d56\u5355\u4e00\u8282\u70b9\u3002\u8ba2\u9605\u4e2d\u5e94\u4fdd\u7559\u591a\u4e2a\u4e0d\u540c\u5730\u533a\u3001\u4e0d\u540c\u534f\u8bae\u7684\u5907\u7528\u8282\u70b9\uff0c\u4ee5\u4fbf\u5728\u4e3b\u8282\u70b9\u5931\u6548\u65f6\u5feb\u901f\u5207\u6362\u3002 \u53ef\u80fd\u539f\u56e0\uff1a<\/strong> \u89e3\u51b3\u65b9\u6cd5\uff1a<\/strong> \u68c0\u67e5 DNS \u5206\u6d41\u8bbe\u7f6e\uff0c\u786e\u4fdd\u56fd\u5185\u57df\u540d\u76f4\u8fde\uff1b\u6d4b\u8bd5 MTU \u503c\uff1b\u5c1d\u8bd5\u8bbf\u95ee\u5176\u4ed6\u7f51\u7ad9\u4ee5\u6392\u9664\u76ee\u6807\u670d\u52a1\u5668\u95ee\u9898\u3002<\/p>\n \u5224\u65ad\u65b9\u6cd5\uff1a<\/strong> \u89e3\u51b3\u65b9\u6cd5\uff1a<\/strong> \u7acb\u5373\u5207\u6362\u5230\u5176\u4ed6\u8282\u70b9\uff0c\u5c24\u5176\u662f\u4e0d\u540c\u5730\u533a\u6216\u4e0d\u540c\u534f\u8bae\u7684\u8282\u70b9\u3002<\/p>\n \u5f71\u54cd\u673a\u5236\uff1a<\/strong> \u5efa\u8bae\uff1a<\/strong> \u59cb\u7ec8\u4f7f\u7528\u89c4\u5219\u6a21\u5f0f\uff0c\u5e76\u786e\u4fdd\u56fd\u5185\u57df\u540d\u548c IP \u8bbe\u7f6e\u4e3a\u76f4\u8fde\u3002<\/p>\n \u53ef\u80fd\u539f\u56e0\uff1a<\/strong> \u5efa\u8bae\uff1a<\/strong> \u5728\u975e\u9ad8\u5cf0\u65f6\u6bb5\u6d4b\u8bd5\uff1b\u5c1d\u8bd5\u4e0d\u540c\u8282\u70b9\uff1b\u68c0\u67e5\u672c\u5730\u7f51\u7edc\u72b6\u6001\u3002<\/p>\n \u901a\u8fc7\u4ee5\u4e0a\u6b65\u9aa4\uff0c\u4f60\u53ef\u4ee5\u7cfb\u7edf\u5730\u6392\u67e5\u548c\u4f18\u5316\u56de\u56fd\u8bbf\u95ee\u5ef6\u8fdf\u95ee\u9898\u3002\u8bb0\u4f4f\uff0c\u6ca1\u6709\u201c\u5b8c\u7f8e\u201d\u7684\u8282\u70b9\uff0c\u53ea\u6709\u201c\u6700\u9002\u5408\u201d\u5f53\u524d\u7f51\u7edc\u73af\u5883\u7684\u914d\u7f6e\u3002\u6301\u7eed\u76d1\u63a7\u548c\u8c03\u6574\uff0c\u624d\u80fd\u83b7\u5f97\u7a33\u5b9a\u7684\u8bbf\u95ee\u4f53\u9a8c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":" \u56de\u56fd\u8bbf\u95ee\u5ef6\u8fdf\u9ad8\u3001\u5361\u987f\u6216\u9891\u7e41\u65ad\u6d41\uff0c\u901a\u5e38\u7531\u7269\u7406\u8ddd\u79bb\u3001\u8def\u7531\u8df3\u6570\u3001\u8282\u70b9\u62e5\u5835\u4ee5\u53ca\u5ba2\u6237\u7aef\u914d\u7f6e\u4e0d\u5f53\u5171\u540c\u5bfc\u81f4\u3002\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898\u7684\u6838 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1144","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.suannai.link\/blog\/wp-json\/wp\/v2\/posts\/1144","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.suannai.link\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.suannai.link\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.suannai.link\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.suannai.link\/blog\/wp-json\/wp\/v2\/comments?post=1144"}],"version-history":[{"count":0,"href":"https:\/\/www.suannai.link\/blog\/wp-json\/wp\/v2\/posts\/1144\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.suannai.link\/blog\/wp-json\/wp\/v2\/media?parent=1144"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.suannai.link\/blog\/wp-json\/wp\/v2\/categories?post=1144"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.suannai.link\/blog\/wp-json\/wp\/v2\/tags?post=1144"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
* \u6d4b\u8bd5\u4ee3\u7406\u94fe\u8def\uff1a<\/strong> \u5728\u5f00\u542f\u4ee3\u7406\u7684\u60c5\u51b5\u4e0b\uff0c\u518d\u6b21 ping \u540c\u4e00\u4e2a\u57df\u540d\u3002\u5982\u679c\u5ef6\u8fdf\u663e\u8457\u589e\u52a0\uff08\u4f8b\u5982\u4ece 30ms \u53d8\u6210 300ms+\uff09\uff0c\u8bf4\u660e\u95ee\u9898\u51fa\u5728\u4ee3\u7406\u901a\u9053\u6216\u76ee\u6807\u670d\u52a1\u5668\u54cd\u5e94\u4e0a\u3002
* \u8ffd\u8e2a\u8def\u7531\u8df3\u6570\uff1a<\/strong> \u4f7f\u7528 `tracert www.baidu.com`\uff08Windows\uff09\u6216 `traceroute www.baidu.com`\uff08Mac\/Linux\uff09\u3002\u89c2\u5bdf\u6570\u636e\u5305\u7ecf\u8fc7\u7684\u8282\u70b9\u3002\u5982\u679c\u770b\u5230\u5927\u91cf\u7ea2\u8272 `* * *` \u6216\u5ef6\u8fdf\u6781\u9ad8\u7684\u8282\u70b9\uff0c\u8bf4\u660e\u8def\u7531\u8def\u5f84\u4e2d\u5b58\u5728\u74f6\u9888\u6216\u4e22\u5305\u3002<\/p>\n2. \u6392\u9664\u76ee\u6807\u670d\u52a1\u5668\u9650\u5236<\/h3>\n
* \u5207\u6362\u534f\u8bae\u6d4b\u8bd5\uff1a<\/strong> \u5982\u679c\u53ef\u80fd\uff0c\u5c1d\u8bd5\u4f7f\u7528\u76f4\u8fde\u6a21\u5f0f\u8bbf\u95ee\u8be5\u7f51\u7ad9\u3002\u5982\u679c\u76f4\u8fde\u4e5f\u6162\uff0c\u5219\u786e\u8ba4\u662f\u670d\u52a1\u5668\u7aef\u95ee\u9898\u3002<\/p>\n\n\u4e8c\u3001 \u5ba2\u6237\u7aef\u8bbe\u7f6e\u4f18\u5316\uff1a\u51cf\u5c11\u8f6f\u4ef6\u5c42\u9762\u7684\u635f\u8017<\/h2>\n
1. \u68c0\u67e5\u5e76\u4f18\u5316 DNS \u8bbe\u7f6e<\/h3>\n
* \u4f7f\u7528\u516c\u5171 DNS\uff1a<\/strong> \u5728\u5ba2\u6237\u7aef\u7684\u9ad8\u7ea7\u8bbe\u7f6e\u4e2d\uff0c\u5c1d\u8bd5\u5c06 DNS \u670d\u52a1\u5668\u8bbe\u7f6e\u4e3a\u56fd\u5185\u516c\u5171 DNS\uff08\u5982 `223.5.5.5` \u6216 `119.29.29.29` \u7684\u56fd\u5185\u8282\u70b9\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u5ba2\u6237\u7aef\u652f\u6301\u60c5\u51b5\uff09\uff0c\u6216\u4fdd\u6301\u7cfb\u7edf\u9ed8\u8ba4\u3002\u907f\u514d\u4f7f\u7528\u5883\u5916 DNS \u89e3\u6790\u56fd\u5185\u57df\u540d\uff0c\u8fd9\u4f1a\u5f15\u5165\u989d\u5916\u7684\u89e3\u6790\u8df3\u6570\u3002
* \u5237\u65b0 DNS \u7f13\u5b58\uff1a<\/strong> \u4fee\u6539\u914d\u7f6e\u540e\uff0c\u5728\u5ba2\u6237\u7aef\u4e2d\u70b9\u51fb\u201c\u5237\u65b0 DNS\u201d\u6216\u201c\u6e05\u9664\u7f13\u5b58\u201d\uff0c\u786e\u4fdd\u65b0\u914d\u7f6e\u7acb\u5373\u751f\u6548\u3002<\/p>\n2. \u8c03\u6574 MTU\uff08\u6700\u5927\u4f20\u8f93\u5355\u5143\uff09<\/h3>\n
* \u81ea\u52a8\u63a2\u6d4b\uff1a<\/strong> \u90e8\u5206\u9ad8\u7ea7\u5ba2\u6237\u7aef\u652f\u6301\u201c\u81ea\u52a8 MTU\u201d\u6216\u201c\u8def\u5f84 MTU \u53d1\u73b0\uff08PMTUD\uff09\u201d\u529f\u80fd\uff0c\u5efa\u8bae\u5f00\u542f\u3002
* \u624b\u52a8\u6d4b\u8bd5\uff1a<\/strong> \u5982\u679c\u4f9d\u7136\u5361\u987f\uff0c\u53ef\u4ee5\u5c1d\u8bd5\u5728\u5ba2\u6237\u7aef\u8bbe\u7f6e\u4e2d\u624b\u52a8\u964d\u4f4e MTU \u503c\uff08\u5982\u964d\u81f3 `1350` \u6216 `1280`\uff09\uff0c\u89c2\u5bdf\u662f\u5426\u6709\u6240\u6539\u5584\u3002\u964d\u4f4e MTU \u4f1a\u589e\u52a0\u5305\u5934\u5f00\u9500\uff0c\u4f46\u80fd\u51cf\u5c11\u5206\u7247\uff0c\u6709\u65f6\u80fd\u7ed5\u8fc7\u67d0\u4e9b\u8def\u7531\u5668\u7684 MTU \u9ed1\u6d1e\u95ee\u9898\u3002<\/p>\n3. \u5173\u95ed\u4e0d\u5fc5\u8981\u7684\u529f\u80fd<\/h3>\n
* \u5173\u95ed TCP \u5feb\u901f\u6253\u5f00\uff08TFO\uff09\uff1a<\/strong> \u5728\u67d0\u4e9b\u7f51\u7edc\u73af\u5883\u4e0b\uff0cTFO \u53ef\u80fd\u5bfc\u81f4\u8fde\u63a5\u4e0d\u7a33\u5b9a\u3002\u5c1d\u8bd5\u5728\u5ba2\u6237\u7aef\u8bbe\u7f6e\u4e2d\u5173\u95ed TFO\uff0c\u89c2\u5bdf\u8fde\u63a5\u662f\u5426\u66f4\u7a33\u5b9a\u3002
* \u907f\u514d\u201c\u5168\u5c40\u6a21\u5f0f\u201d\uff1a<\/strong> \u9664\u975e\u5fc5\u8981\uff0c\u5426\u5219\u4e0d\u8981\u4f7f\u7528\u5168\u5c40\u6a21\u5f0f\u3002\u5168\u5c40\u6a21\u5f0f\u4f1a\u5c06\u6240\u6709\u6d41\u91cf\uff08\u5305\u62ec\u56fd\u5185\u6d41\u91cf\uff09\u90fd\u7ecf\u8fc7\u4ee3\u7406\u8282\u70b9\uff0c\u8fd9\u4e0d\u4ec5\u6d6a\u8d39\u5e26\u5bbd\uff0c\u8fd8\u4f1a\u56e0\u7ed5\u8def\u5bfc\u81f4\u56fd\u5185\u8bbf\u95ee\u5ef6\u8fdf\u6fc0\u589e\u3002\u52a1\u5fc5\u4f7f\u7528\u201c\u89c4\u5219\u6a21\u5f0f\uff08Rule Mode\uff09\u201d\u6216\u201c\u667a\u80fd\u5206\u6d41\u201d\u3002<\/p>\n4. \u534f\u8bae\u4e0e\u52a0\u5bc6\u7b97\u6cd5\u7684\u9009\u62e9<\/h2>\n
* \u5c1d\u8bd5\u8f7b\u91cf\u7ea7\u534f\u8bae\uff1a<\/strong> \u5982\u679c\u8ffd\u6c42\u4f4e\u5ef6\u8fdf\uff0c\u53ef\u4ee5\u5c1d\u8bd5\u4f7f\u7528 `XTLS`\u3001`Vision` \u6216 `Reality` \u7b49\u8f83\u65b0\u7684\u534f\u8bae\u7279\u6027\uff08\u5982\u679c\u5ba2\u6237\u7aef\u652f\u6301\uff09\uff0c\u5b83\u4eec\u901a\u5e38\u6bd4\u4f20\u7edf TLS \u63e1\u624b\u66f4\u5feb\u3002
* \u52a0\u5bc6\u7b97\u6cd5\uff1a<\/strong> \u907f\u514d\u4f7f\u7528\u9ad8\u5f3a\u5ea6\u7684\u52a0\u5bc6\u7b97\u6cd5\uff08\u5982 `chacha20-ietf-poly1305` \u5728\u4f4e\u6027\u80fd\u8bbe\u5907\u4e0a\uff09\u3002\u5c1d\u8bd5 `aes-256-gcm` \u6216 `xchacha20-ietf-poly1305`\uff0c\u73b0\u4ee3 CPU \u5bf9\u8fd9\u4e9b\u7b97\u6cd5\u6709\u786c\u4ef6\u52a0\u901f\u652f\u6301\uff0c\u6027\u80fd\u66f4\u597d\u3002<\/p>\n\u4e09\u3001 \u8282\u70b9\u4e0e\u7ebf\u8def\u9009\u62e9\uff1a\u7269\u7406\u8ddd\u79bb\u4e0e\u8def\u7531\u4f18\u5316<\/h2>\n
1. \u9009\u62e9\u4f4e\u5ef6\u8fdf\u8282\u70b9<\/h3>\n
* \u5ef6\u8fdf\u6d4b\u8bd5\uff1a<\/strong> \u5728\u8ba2\u9605\u5217\u8868\u4e2d\uff0c\u67e5\u770b\u8282\u70b9\u63d0\u4f9b\u7684\u5ef6\u8fdf\u6570\u636e\uff08Ping \u503c\uff09\u3002\u9009\u62e9\u5ef6\u8fdf\u6700\u4f4e\u4e14\u7a33\u5b9a\u7684\u8282\u70b9\u3002\u6ce8\u610f\uff0c\u5ef6\u8fdf\u6570\u636e\u53ef\u80fd\u662f\u8fc7\u65f6\u7684\uff0c\u5efa\u8bae\u81ea\u884c\u8fdb\u884c Ping \u6d4b\u8bd5\u3002
* \u907f\u514d\u9ad8\u5cf0\u65f6\u6bb5\uff1a<\/strong> \u516c\u5171\u8282\u70b9\u5728\u665a\u95f4\u9ad8\u5cf0\u65f6\u6bb5\u5bb9\u6613\u62e5\u5835\u3002\u5982\u679c\u53ef\u80fd\uff0c\u9009\u62e9\u63d0\u4f9b\u201c\u4e13\u7ebf\u201d\u6216\u201c\u72ec\u4eab\u201d\u670d\u52a1\u7684\u8282\u70b9\uff0c\u867d\u7136\u6210\u672c\u8f83\u9ad8\uff0c\u4f46\u7a33\u5b9a\u6027\u66f4\u597d\u3002<\/p>\n2. \u8def\u7531\u4f18\u5316\u4e0e BGP \u7ebf\u8def<\/h3>\n
* CN2 GIA \u7ebf\u8def\uff1a<\/strong> \u5982\u679c\u9884\u7b97\u5141\u8bb8\uff0c\u4f18\u5148\u9009\u62e9\u63d0\u4f9b CN2 GIA\uff08China Netcom Global Internet Access\uff09\u7ebf\u8def\u7684\u8282\u70b9\u3002CN2 GIA \u662f\u7535\u4fe1\u9aa8\u5e72\u7f51\u7684\u9ad8\u54c1\u8d28\u7ebf\u8def\uff0c\u4e13\u95e8\u9488\u5bf9\u56fd\u9645\u56de\u56fd\u6d41\u91cf\u4f18\u5316\uff0c\u5ef6\u8fdf\u4f4e\u3001\u4e22\u5305\u5c11\u3002
* \u907f\u514d\u591a\u8df3\uff08Multi-hop\uff09\uff1a<\/strong> \u9664\u975e\u6709\u7279\u6b8a\u9700\u6c42\uff0c\u5426\u5219\u4e0d\u8981\u4f7f\u7528\u591a\u8df3\u914d\u7f6e\uff08\u5373\u6d41\u91cf\u7ecf\u8fc7\u4e24\u4e2a\u6216\u66f4\u591a\u4ee3\u7406\u8282\u70b9\uff09\u3002\u6bcf\u589e\u52a0\u4e00\u8df3\uff0c\u5ef6\u8fdf\u548c\u4e22\u5305\u98ce\u9669\u90fd\u4f1a\u663e\u8457\u589e\u52a0\u3002<\/p>\n3. \u8ba2\u9605\u6e90\u8d28\u91cf<\/h3>\n
* \u9009\u62e9\u4e13\u4e1a\u670d\u52a1\u5546\uff1a<\/strong> \u67d0\u4e9b\u670d\u52a1\u5546\u63d0\u4f9b\u4e13\u95e8\u7684\u201c\u4f4e\u5ef6\u8fdf\u201d\u6216\u201c\u6e38\u620f\u52a0\u901f\u201d\u6807\u7b7e\u7684\u8282\u70b9\uff0c\u8fd9\u4e9b\u8282\u70b9\u901a\u5e38\u7ecf\u8fc7\u4e13\u95e8\u4f18\u5316\uff0c\u9002\u5408\u5bf9\u5ef6\u8fdf\u654f\u611f\u7684\u7528\u6237\u3002<\/p>\n\u56db\u3001 \u64cd\u4f5c\u7cfb\u7edf\u4e0e\u8bbe\u5907\u5c42\u9762\u7684\u4f18\u5316<\/h2>\n
1. Windows \u7cfb\u7edf\u4f18\u5316<\/h3>\n
* \u7981\u7528 Nagle \u7b97\u6cd5\uff1a<\/strong> \u5728\u5ba2\u6237\u7aef\u8bbe\u7f6e\u4e2d\uff0c\u5c1d\u8bd5\u542f\u7528\u201c\u7981\u7528 Nagle \u7b97\u6cd5\u201d\u6216\u201cTCP NoDelay\u201d\uff0c\u8fd9\u53ef\u4ee5\u51cf\u5c11\u5c0f\u6570\u636e\u5305\u7684\u53d1\u9001\u5ef6\u8fdf\uff0c\u5bf9\u4ea4\u4e92\u5f0f\u5e94\u7528\uff08\u5982\u6e38\u620f\u3001\u804a\u5929\uff09\u6709\u5e2e\u52a9\u3002
* \u9632\u706b\u5899\u51b2\u7a81\uff1a<\/strong> \u786e\u4fdd\u4ee3\u7406\u5ba2\u6237\u7aef\u88ab Windows \u9632\u706b\u5899\u6216\u7b2c\u4e09\u65b9\u6740\u6bd2\u8f6f\u4ef6\u5141\u8bb8\u3002\u9632\u706b\u5899\u7684\u6df1\u5c42\u5305\u68c0\u6d4b\uff08DPI\uff09\u53ef\u80fd\u4f1a\u589e\u52a0\u5ef6\u8fdf\u3002\u5c1d\u8bd5\u6682\u65f6\u7981\u7528\u9632\u706b\u5899\u6d4b\u8bd5\uff0c\u6216\u6dfb\u52a0\u4f8b\u5916\u89c4\u5219\u3002<\/p>\n2. macOS \u7cfb\u7edf\u4f18\u5316<\/h3>\n
* DNS \u5237\u65b0\uff1a<\/strong> macOS \u6709\u65f6\u4f1a\u7f13\u5b58 DNS \u8bb0\u5f55\u3002\u5728\u7ec8\u7aef\u4e2d\u8fd0\u884c `sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder` \u4ee5\u5237\u65b0 DNS \u7f13\u5b58\u3002<\/p>\n3. \u79fb\u52a8\u7aef\uff08iOS\/Android\uff09\u4f18\u5316<\/h3>\n
* Wi-Fi \u4e0e 4G\/5G \u5207\u6362\uff1a<\/strong> \u5728\u79fb\u52a8\u7f51\u7edc\u4e0b\uff0c\u5ef6\u8fdf\u53ef\u80fd\u66f4\u4e0d\u7a33\u5b9a\u3002\u5c1d\u8bd5\u5728 Wi-Fi \u548c\u79fb\u52a8\u6570\u636e\u4e4b\u95f4\u5207\u6362\uff0c\u9009\u62e9\u5ef6\u8fdf\u8f83\u4f4e\u7684\u7f51\u7edc\u3002
* \u5173\u95ed\u7701\u7535\u6a21\u5f0f\uff1a<\/strong> \u7701\u7535\u6a21\u5f0f\u53ef\u80fd\u4f1a\u9650\u5236\u7f51\u7edc\u5904\u7406\u80fd\u529b\uff0c\u5bfc\u81f4\u5ef6\u8fdf\u589e\u52a0\u3002<\/p>\n\u4e94\u3001 \u9a8c\u8bc1\u4e0e\u6301\u7eed\u76d1\u63a7<\/h2>\n
1. \u4f7f\u7528\u4e13\u4e1a\u6d4b\u901f\u5de5\u5177<\/h3>\n
* Ping \u6d4b\u8bd5\uff1a<\/strong> \u5b9a\u671f Ping \u5e38\u7528\u7f51\u7ad9\uff0c\u8bb0\u5f55\u5ef6\u8fdf\u53d8\u5316\u3002\u5982\u679c\u5ef6\u8fdf\u7a81\u7136\u5347\u9ad8\uff0c\u53ef\u80fd\u662f\u8282\u70b9\u6545\u969c\u6216\u7f51\u7edc\u6ce2\u52a8\u3002<\/p>\n2. \u65e5\u5fd7\u5206\u6790<\/h3>\n
* \u5206\u6790\u9519\u8bef\u4ee3\u7801\uff1a<\/strong> \u6839\u636e\u9519\u8bef\u4ee3\u7801\u5224\u65ad\u95ee\u9898\u7c7b\u578b\u3002\u4f8b\u5982\uff0c`connection refused` \u53ef\u80fd\u8868\u793a\u7aef\u53e3\u88ab\u5c01\uff0c`timeout` \u53ef\u80fd\u8868\u793a\u8282\u70b9\u8fc7\u8f7d\u6216\u8def\u7531\u95ee\u9898\u3002<\/p>\n3. \u957f\u671f\u7ef4\u62a4\u5efa\u8bae<\/h3>\n
* \u5173\u6ce8\u7f51\u7edc\u53d8\u5316\uff1a<\/strong> \u56fd\u9645\u7f51\u7edc\u73af\u5883\u52a8\u6001\u53d8\u5316\uff0c\u5b9a\u671f\u5173\u6ce8\u8282\u70b9\u72b6\u6001\u548c\u53ef\u7528\u6027\u3002
* \u5408\u7406\u9884\u671f\uff1a<\/strong> \u7269\u7406\u8ddd\u79bb\u51b3\u5b9a\u4e86\u5ef6\u8fdf\u7684\u4e0b\u9650\u3002\u4ece\u4e2d\u56fd\u5927\u9646\u5230\u6d77\u5916\u8282\u70b9\uff0c\u5373\u4f7f\u4f7f\u7528\u6700\u4f18\u7ebf\u8def\uff0c\u5ef6\u8fdf\u4e5f\u5f88\u96be\u4f4e\u4e8e 50ms\u3002\u5982\u679c\u8ffd\u6c42\u6781\u4f4e\u5ef6\u8fdf\uff0c\u5e94\u8003\u8651\u4f7f\u7528\u56fd\u5185\u76f4\u8fde\u6216\u672c\u5730 CDN \u7f13\u5b58\u3002<\/p>\n\u5e38\u89c1\u95ee\u9898\u89e3\u7b54<\/h2>\n
Q1: \u4e3a\u4ec0\u4e48\u6211\u6362\u4e86\u4f4e\u5ef6\u8fdf\u8282\u70b9\uff0c\u8bbf\u95ee\u4f9d\u7136\u5361\u987f\uff1f<\/h3>\n
\u2022 DNS \u89e3\u6790\u9519\u8bef\uff1a<\/strong> \u56fd\u5185\u57df\u540d\u88ab\u89e3\u6790\u5230\u4e86\u6d77\u5916 IP\u3002
\u2022 MTU \u8bbe\u7f6e\u4e0d\u5f53\uff1a<\/strong> \u5bfc\u81f4\u6570\u636e\u5305\u5206\u7247\u3002
\u2022 \u76ee\u6807\u670d\u52a1\u5668\u9650\u5236\uff1a<\/strong> \u76ee\u6807\u7f51\u7ad9\u5bf9\u6d77\u5916 IP \u8fdb\u884c\u9650\u901f\u6216\u5c4f\u853d\u3002
\u2022 \u5ba2\u6237\u7aef\u914d\u7f6e\u9519\u8bef\uff1a<\/strong> \u4f7f\u7528\u4e86\u5168\u5c40\u6a21\u5f0f\u6216\u9519\u8bef\u7684\u8def\u7531\u89c4\u5219\u3002<\/p>\nQ2: \u5982\u4f55\u5224\u65ad\u8282\u70b9\u662f\u5426\u62e5\u5835\uff1f<\/h3>\n
\u2022 Ping \u503c\u6ce2\u52a8\uff1a<\/strong> \u5982\u679c Ping \u503c\u5728\u51e0\u79d2\u5185\u5267\u70c8\u6ce2\u52a8\uff08\u5982\u4ece 100ms \u8df3\u5230 500ms \u518d\u56de\u5230 100ms\uff09\uff0c\u8bf4\u660e\u8282\u70b9\u6216\u94fe\u8def\u4e0d\u7a33\u5b9a\u3002
\u2022 \u4e0b\u8f7d\u901f\u5ea6\u9aa4\u964d\uff1a<\/strong> \u5728\u5e26\u5bbd\u5145\u8db3\u7684\u60c5\u51b5\u4e0b\uff0c\u4e0b\u8f7d\u901f\u5ea6\u7a81\u7136\u964d\u81f3\u5f88\u4f4e\uff0c\u4e14 Ping \u503c\u5347\u9ad8\u3002
\u2022 \u8fde\u63a5\u9891\u7e41\u65ad\u5f00\uff1a<\/strong> \u5ba2\u6237\u7aef\u65e5\u5fd7\u663e\u793a\u5927\u91cf `timeout` \u6216 `reset` \u9519\u8bef\u3002<\/p>\nQ3: \u4ee3\u7406\u4f1a\u5f71\u54cd\u56fd\u5185\u8bbf\u95ee\u901f\u5ea6\u5417\uff1f<\/h3>\n
* \u5168\u5c40\u6a21\u5f0f\uff1a<\/strong> \u4f1a\u5c06\u6240\u6709\u6d41\u91cf\uff08\u5305\u62ec\u56fd\u5185\u6d41\u91cf\uff09\u90fd\u7ecf\u8fc7\u4ee3\u7406\u8282\u70b9\uff0c\u5bfc\u81f4\u56fd\u5185\u8bbf\u95ee\u5fc5\u987b\u7ed5\u9053\u6d77\u5916\uff0c\u663e\u8457\u589e\u52a0\u5ef6\u8fdf\u3002
* \u89c4\u5219\u6a21\u5f0f\uff1a<\/strong> \u4ec5\u5c06\u9700\u8981\u4ee3\u7406\u7684\u6d41\u91cf\u7ecf\u8fc7\u4ee3\u7406\u8282\u70b9\uff0c\u56fd\u5185\u6d41\u91cf\u76f4\u8fde\uff0c\u5bf9\u56fd\u5185\u8bbf\u95ee\u901f\u5ea6\u65e0\u5f71\u54cd\u3002<\/p>\nQ4: \u4e3a\u4ec0\u4e48\u6709\u65f6\u5ef6\u8fdf\u4f4e\uff0c\u6709\u65f6\u5ef6\u8fdf\u9ad8\uff1f<\/h3>\n
\u2022 \u7f51\u7edc\u62e5\u585e\uff1a<\/strong> \u9ad8\u5cf0\u65f6\u6bb5\uff08\u5982\u665a\u95f4 8-11 \u70b9\uff09\u56fd\u9645\u5e26\u5bbd\u7d27\u5f20\u3002
\u2022 \u8282\u70b9\u8d1f\u8f7d\uff1a<\/strong> \u8282\u70b9\u7528\u6237\u8fc7\u591a\uff0c\u5e26\u5bbd\u88ab\u5206\u644a\u3002
\u2022 \u8def\u7531\u53d8\u5316\uff1a<\/strong> \u56fd\u9645\u8def\u7531\u52a8\u6001\u8c03\u6574\uff0c\u53ef\u80fd\u7ecf\u8fc7\u66f4\u957f\u7684\u8def\u5f84\u3002
\u2022 \u672c\u5730\u7f51\u7edc\u6ce2\u52a8\uff1a<\/strong> \u672c\u5730\u8fd0\u8425\u5546\u7f51\u7edc\u4e0d\u7a33\u5b9a\u3002<\/p>\n