{"id":209146,"date":"2025-09-30T05:43:01","date_gmt":"2025-09-29T21:43:01","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209146\/"},"modified":"2025-09-30T05:43:02","modified_gmt":"2025-09-29T21:43:02","slug":"vps-206","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209146\/","title":{"rendered":"\u9999\u6e2fVPS\u5ef6\u8fdf\u9ad8\uff1f7\u6761\u5b9e\u7528\u4f18\u5316\u6280\u5de7\u5e2e\u4f60\u5feb\u901f\u964d\u5ef6\u8fdf"},"content":{"rendered":"<p>\u5728\u9999\u6e2f\u90e8\u7f72VPS\u7684\u7528\u6237\u5e38\u5e38\u4f1a\u9047\u5230\u201c\u5ef6\u8fdf\u9ad8\u201d\u8fd9\u4e00\u75db\u70b9\uff0c\u5c24\u5176\u662f\u9762\u5411\u4e2d\u56fd\u5927\u9646\u6216\u4e9a\u592a\u5176\u4ed6\u5730\u533a\u7684\u7ad9\u70b9\u3001\u6e38\u620f\u670d\u52a1\u5668\u3001\u5b9e\u65f6\u901a\u8baf\u6216\u91d1\u878d\u4ea4\u6613\u5e94\u7528\u65f6\uff0c\u5ef6\u8fdf\u8868\u73b0\u76f4\u63a5\u5173\u7cfb\u5230\u7528\u6237\u4f53\u9a8c\u4e0e\u4e1a\u52a1\u6210\u8d25\u3002\u672c\u6587\u9762\u5411\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u53ca\u5f00\u53d1\u8005\uff0c\u4ece\u7f51\u7edc\u539f\u7406\u3001\u4f18\u5316\u573a\u666f\u3001\u4f18\u52bf\u5bf9\u6bd4\u4e0e\u9009\u8d2d\u5efa\u8bae\u51fa\u53d1\uff0c\u63d0\u4f9b<strong>7\u6761\u5b9e\u7528\u4e14\u53ef\u64cd\u4f5c\u7684\u4f18\u5316\u6280\u5de7<\/strong>\uff0c\u5e2e\u52a9\u4f60\u5728\u9999\u6e2fVPS\u4e0a\u5feb\u901f\u5e76\u6301\u7eed\u964d\u4f4e\u5ef6\u8fdf\u3002<\/p>\n<h2>\u4e3a\u4ec0\u4e48\u4f1a\u51fa\u73b0\u5ef6\u8fdf\u9ad8\u7684\u95ee\u9898\uff08\u539f\u7406\u89e3\u6790\uff09<\/h2>\n<p>\u5ef6\u8fdf\uff08Latency\uff09\u6307\u6570\u636e\u5305\u4ece\u6e90\u4e3b\u673a\u5230\u76ee\u7684\u4e3b\u673a\u5f80\u8fd4\u6240\u9700\u7684\u65f6\u95f4\uff0c\u901a\u5e38\u4ee5\u6beb\u79d2\uff08ms\uff09\u4e3a\u5355\u4f4d\u3002\u5f62\u6210\u5ef6\u8fdf\u7684\u4e3b\u8981\u56e0\u7d20\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u7269\u7406\u8ddd\u79bb\uff1a\u4fe1\u53f7\u4f20\u64ad\u53d7\u9650\u4e8e\u5149\u901f\uff0c\u533a\u57df\u95f4\u7269\u7406\u8ddd\u79bb\u8d8a\u8fdc\uff0c\u7406\u8bba\u6700\u4f4e\u5ef6\u8fdf\u8d8a\u9ad8\u3002<\/li>\n<li>\u8def\u7531\u8df3\u6570\u4e0e\u8def\u5f84\u8d28\u91cf\uff1a\u6570\u636e\u5305\u7ecf\u8fc7\u7684\u4e2d\u8f6c\u8282\u70b9\u8d8a\u591a\uff0c\u6392\u961f\u3001\u5904\u7406\u4e0e\u8f6c\u53d1\u5ef6\u8fdf\u8d8a\u5927\u3002\u5dee\u7684\u8def\u7531\u7b56\u7565\u6216\u4e0d\u7a33\u5b9a\u94fe\u8def\u4e5f\u4f1a\u9020\u6210\u4e22\u5305\u4e0e\u91cd\u4f20\uff0c\u4ece\u800c\u653e\u5927\u5ef6\u8fdf\u3002<\/li>\n<li>\u5e26\u5bbd\u9971\u548c\u4e0e\u961f\u5217\u5ef6\u8fdf\uff1a\u94fe\u8def\u5e26\u5bbd\u8017\u5c3d\u6216\u7f51\u7edc\u8bbe\u5907\u961f\u5217\u79ef\u538b\u4f1a\u5bfc\u81f4\u6392\u961f\u5ef6\u8fdf\uff08queuing delay\uff09\u3002<\/li>\n<li>\u670d\u52a1\u5668\u7aef\u5904\u7406\u65f6\u5ef6\uff1aVPS\u7684CPU\u8d1f\u8f7d\u3001IO\u6027\u80fd\uff08\u78c1\u76d8\/SSD\u5ef6\u8fdf\uff09\u3001\u4ee5\u53ca\u64cd\u4f5c\u7cfb\u7edf\u7f51\u7edc\u6808\u914d\u7f6e\u90fd\u4f1a\u5f71\u54cd\u54cd\u5e94\u65f6\u95f4\u3002<\/li>\n<li>\u4f20\u8f93\u5c42\u534f\u8bae\u4e0e\u5e94\u7528\u5c42\u8bbe\u8ba1\uff1a\u6bd4\u5982\u5927\u91cf\u5c0f\u5305\u9891\u7e41\u4ea4\u4e92\u3001\u672a\u542f\u7528TCP\u4f18\u5316\u6216\u4f7f\u7528\u975e\u4f18\u5316\u7684TLS\u5b9e\u73b0\uff0c\u90fd\u4f1a\u589e\u52a0\u5f80\u8fd4\u6b21\u6570\u4e0e\u5904\u7406\u65f6\u95f4\u3002<\/li>\n<\/ul>\n<h2>\u5e94\u7528\u573a\u666f\u4e0e\u5bf9\u5ef6\u8fdf\u9700\u6c42\u7684\u533a\u522b<\/h2>\n<p>\u4e0d\u540c\u5e94\u7528\u5bf9\u5ef6\u8fdf\u654f\u611f\u5ea6\u5dee\u5f02\u660e\u663e\uff0c\u56e0\u6b64\u4f18\u5316\u7b56\u7565\u5e94\u9488\u5bf9\u573a\u666f\u5236\u5b9a\uff1a<\/p>\n<ul>\n<li>\u5b9e\u65f6\u901a\u8baf\/VoIP\u4e0e\u5728\u7ebf\u6e38\u620f\uff1a\u5bf9\u7aef\u5230\u7aef\u5ef6\u8fdf\u8981\u6c42\u6781\u9ad8\uff08\u901a\u5e38\u9700\u4f4e\u4e8e100ms\uff0c\u7406\u60f3\u4f4e\u4e8e50ms\uff09\uff0c\u5bf9\u4e22\u5305\u4e5f\u975e\u5e38\u654f\u611f\u3002<\/li>\n<li>\u91d1\u878d\u4ea4\u6613\/\u9ad8\u9891\u4ea4\u6613\uff1a\u9700\u8981\u6781\u4f4e\u4e14\u7a33\u5b9a\u7684\u5ef6\u8fdf\uff0c\u5f80\u5f80\u91c7\u7528\u4e13\u7ebf\u6216\u9760\u8fd1\u4ea4\u6613\u6240\u7684\u7269\u7406\u670d\u52a1\u5668\u3002<\/li>\n<li>Web\u670d\u52a1\u4e0eAPI\uff1a\u5bf9\u5ef6\u8fdf\u6709\u4e2d\u7b49\u8981\u6c42\uff0c\u9996\u5305\u65f6\u95f4\uff08TTFB\uff09\u4e0e\u9875\u9762\u52a0\u8f7d\u901f\u5ea6\u5f71\u54cdSEO\u4e0e\u7528\u6237\u4f53\u9a8c\u3002<\/li>\n<li>\u6587\u4ef6\u4f20\u8f93\u4e0e\u5907\u4efd\uff1a\u5bf9\u5e26\u5bbd\u66f4\u654f\u611f\uff0c\u5ef6\u8fdf\u5f71\u54cd\u4f4e\uff0c\u4f46\u9ad8\u5ef6\u8fdf\u4ecd\u4f1a\u964d\u4f4e\u541e\u5410\u6548\u7387\uff08\u7279\u522b\u662f\u5728\u9ad8RTT\u7684TCP\u8fde\u63a5\u4e2d\uff09\u3002<\/li>\n<\/ul>\n<h2>\u9999\u6e2fVPS\u76f8\u6bd4\u7f8e\u56fdVPS\u4e0e\u7f8e\u56fd\u670d\u52a1\u5668\u7684\u5ef6\u8fdf\u5dee\u5f02\uff08\u4f18\u52bf\u5bf9\u6bd4\uff09<\/h2>\n<p>\u9009\u62e9\u9999\u6e2fVPS\u6216\u7f8e\u56fdVPS\/\u7f8e\u56fd\u670d\u52a1\u5668\uff0c\u5e94\u57fa\u4e8e\u76ee\u6807\u7528\u6237\u5730\u57df\u4e0e\u4e1a\u52a1\u9700\u6c42\uff1a<\/p>\n<ul>\n<li>\u5bf9\u4e2d\u56fd\u5927\u9646\u7528\u6237\uff1a<strong>\u9999\u6e2fVPS\u901a\u5e38\u6bd4\u7f8e\u56fdVPS\u5ef6\u8fdf\u66f4\u4f4e<\/strong>\uff0c\u56e0\u5730\u7406\u8ddd\u79bb\u77ed\u3001\u7f51\u7edc\u51fa\u53e3\u5230\u5927\u9646\u94fe\u8def\u591a\u4e14\u7a33\u5b9a\u3002\u5bf9\u4e8e\u9762\u5411\u4e2d\u56fd\u5185\u5730\u6d41\u91cf\u7684\u7f51\u7ad9\u4e0e\u670d\u52a1\uff0c\u9999\u6e2f\u670d\u52a1\u5668\u662f\u5e38\u89c1\u9996\u9009\u3002<\/li>\n<li>\u5bf9\u5317\u7f8e\u7528\u6237\uff1a\u7f8e\u56fdVPS\u6216\u7f8e\u56fd\u670d\u52a1\u5668\u5728\u5ef6\u8fdf\u65b9\u9762\u66f4\u5177\u4f18\u52bf\uff0c\u8bbf\u95ee\u901f\u5ea6\u4e0e\u7f51\u7edc\u76f4\u8fde\u66f4\u597d\u3002<\/li>\n<li>\u5168\u7403\u5206\u53d1\u573a\u666f\uff1a\u7ed3\u5408\u9999\u6e2fVPS\u4e0e\u7f8e\u56fdVPS\uff0c\u518d\u914d\u5408CDN\uff0c\u80fd\u5728\u4e0d\u540c\u5730\u57df\u4fdd\u6301\u8f83\u4f4e\u5ef6\u8fdf\u4e0e\u9ad8\u53ef\u7528\u6027\u3002<\/li>\n<\/ul>\n<h2>7\u6761\u5b9e\u7528\u4f18\u5316\u6280\u5de7\uff08\u9010\u6761\u7ed9\u51fa\u6280\u672f\u7ec6\u8282\u4e0e\u64cd\u4f5c\u6b65\u9aa4\uff09<\/h2>\n<h3>1. \u4f18\u5316\u8def\u7531\u4e0e\u9009\u62e9\u4f18\u8d28\u4e2d\u8f6c\u8282\u70b9<\/h3>\n<p>\u8def\u7531\u662f\u51b3\u5b9a\u5ef6\u8fdf\u7684\u5173\u952e\u3002\u64cd\u4f5c\u5efa\u8bae\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528traceroute\uff08Linux: traceroute \u6216 mtr; Windows: tracert\uff09\u68c0\u6d4b\u5230\u76ee\u6807\u7684\u8def\u5f84\u4e0e\u5404\u8df3\u5ef6\u8fdf\uff0c\u627e\u51fa\u5ef6\u8fdf\u6216\u4e22\u5305\u96c6\u4e2d\u7684\u8282\u70b9\u3002<\/li>\n<li>\u8054\u7cfb\u4f60\u7684VPS\u63d0\u4f9b\u5546\u8bf7\u6c42\u9009\u62e9\u4e0d\u540c\u51fa\u53e3\u6216\u4f18\u5316BGP\u7b56\u7565\u3002\u6709\u4e9b\u9999\u6e2fVPS\u63d0\u4f9b\u5546\u53ef\u4ee5\u5207\u6362\u5230\u66f4\u4f18AS\u8def\u5f84\u6216\u66f4\u4f4e\u5ef6\u8fdf\u7684\u4e2d\u8f6c\u70b9\u3002<\/li>\n<li>\u4e3a\u5173\u952e\u5bf9\u7aef\u914d\u7f6e\u9759\u6001\u8def\u7531\u6216BGP peering\uff08\u9002\u7528\u4e8e\u6258\u7ba1\u6709\u81ea\u6709IP\u5757\u4e0e\u8def\u7531\u63a7\u5236\u7684\u4f01\u4e1a\u5ba2\u6237\uff09\uff0c\u4ee5\u907f\u5f00\u9ad8\u5ef6\u8fdf\u94fe\u8def\u3002<\/li>\n<\/ul>\n<h3>2. \u4f7f\u7528TCP\u4e0e\u5185\u6838\u7f51\u7edc\u6808\u4f18\u5316<\/h3>\n<p>\u9488\u5bf9\u9ad8RTT\u73af\u5883\uff0cTCP\u53c2\u6570\u4f18\u5316\u80fd\u663e\u8457\u63d0\u5347\u8868\u73b0\uff1a<\/p>\n<ul>\n<li>\u8c03\u6574\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\uff1aLinux\u5185\u6838\u5e38\u7528\u7684\u6709 cubic\u3001reno\u3001bbr\u3002\u5bf9\u4e8e\u9ad8\u4e22\u5305\u6216\u957f\u94fe\u8def\u73af\u5883\uff0c\u5c1d\u8bd5\u542f\u7528 <code>tcp_congestion_control=bbr<\/code>\uff08\u9700\u8981\u5185\u6838\u652f\u6301\uff09\uff0cBBR\u80fd\u5728\u5e26\u5bbd\u53d7\u9650\u548c\u9ad8\u5ef6\u8fdf\u4e0b\u63d0\u4f9b\u66f4\u7a33\u5b9a\u541e\u5410\u3002<\/li>\n<li>\u8c03\u6574\u7a97\u53e3\u5927\u5c0f\uff1a\u7f16\u8f91 <code>\/etc\/sysctl.conf<\/code>\uff0c\u8bbe\u7f6e\u4f8b\u5982\uff1a<\/li>\n<li><code>net.core.rmem_default=262144<\/code>, <code>net.core.rmem_max=16777216<\/code><\/li>\n<li><code>net.core.wmem_default=262144<\/code>, <code>net.core.wmem_max=16777216<\/code><\/li>\n<li><code>net.ipv4.tcp_rmem=4096 87380 16777216<\/code>, <code>net.ipv4.tcp_wmem=4096 65536 16777216<\/code><\/li>\n<li>\u542f\u7528TCP\u5feb\u901f\u6253\u5f00\uff08TFO\uff09\u4ee5\u51cf\u5c11\u63e1\u624b\u5ef6\u8fdf\uff1a<code>net.ipv4.tcp_fastopen<\/code>\u76f8\u5173\u8bbe\u7f6e\u4ee5\u53ca\u5e94\u7528\u7aef\u652f\u6301\u3002<\/li>\n<\/ul>\n<h3>3. \u4f7f\u7528UDP\u6216QUIC\u66ff\u4ee3\u4f20\u7edfTCP\uff08\u82e5\u5e94\u7528\u652f\u6301\uff09<\/h3>\n<p>\u5bf9\u4e8e\u5b9e\u65f6\u5e94\u7528\u6216HTTP\/3\uff0c\u53ef\u8003\u8651\uff1a<\/p>\n<ul>\n<li>\u5c06\u5b9e\u65f6\u6d41\u91cf\u5728\u53ef\u884c\u8303\u56f4\u5185\u8fc1\u79fb\u5230UDP+\u5e94\u7528\u5c42\u534f\u8bae\uff08\u5982QUIC\/HTTP\/3\uff09\u4ee5\u51cf\u5c11\u5934\u90e8\u4e0e\u91cd\u4f20\u5ef6\u8fdf\u3002<\/li>\n<li>\u90e8\u7f72\u652f\u6301QUIC\u7684\u53cd\u5411\u4ee3\u7406\uff08\u5982Caddy\u6216\u542f\u7528nginx\u7684quic\u6a21\u5757\uff09\u4ee5\u63d0\u5347\u77ed\u8fde\u63a5\u4e0eTLS\u63e1\u624b\u6548\u7387\u3002<\/li>\n<\/ul>\n<h3>4. 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