{"id":1649,"date":"2026-03-12T04:52:55","date_gmt":"2026-03-12T12:52:55","guid":{"rendered":"https:\/\/zhaomihao.com\/zh\/?p=1649"},"modified":"2026-03-12T04:59:30","modified_gmt":"2026-03-12T12:59:30","slug":"vps-network-configuration","status":"publish","type":"post","link":"https:\/\/zhaomihao.com\/zh\/vps-network-configuration\/","title":{"rendered":"Ubuntu 24.04 VPS\u7f51\u7edc\u914d\u7f6e"},"content":{"rendered":"\n<h4 class=\"wp-block-heading\">\u8bbe\u7f6eBBR<\/h4>\n\n\n\n<p>BBR\uff08Bottleneck Bandwidth and Round-trip propagation time\uff09\u662f\u7531 Google \u5f00\u53d1\u7684\u4e00\u79cd\u200c<strong>TCP \u62e5\u585e\u63a7\u5236\u7b97\u6cd5<\/strong>\u200c\uff0c\u901a\u8fc7\u4e3b\u52a8\u6d4b\u91cf\u7f51\u7edc\u7684\u200c<strong>\u5e26\u5bbd\u548c\u5f80\u8fd4\u65f6\u95f4\uff08RTT\uff09<\/strong>\u200c\u6765\u4f18\u5316\u6570\u636e\u4f20\u8f93\u6548\u7387\uff0c\u5c24\u5176\u5728\u200c<strong>\u9ad8\u5ef6\u8fdf\u3001\u8de8\u8fd0\u8425\u5546\u6216\u9ad8\u4e22\u5305\u7387<\/strong>\u200c\u7684\u7f51\u7edc\u73af\u5883\u4e0b\u8868\u73b0\u4f18\u5f02 \u200c\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>\u9002\u7528\u573a\u666f<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8de8\u8fd0\u8425\u5546\u8bbf\u95ee\u5361\u987f\uff08\u5982\u56fd\u5185\u8bbf\u95ee\u6d77\u5916\u670d\u52a1\u5668\uff09<\/li>\n\n\n\n<li>VPS\/\u4e91\u670d\u52a1\u5668\u7f51\u7edc\u541e\u5410\u91cf\u4f4e<\/li>\n\n\n\n<li>\u89c6\u9891\u6d41\u5a92\u4f53\u3001\u5927\u6587\u4ef6\u4e0b\u8f7d\u7b49\u5bf9\u5e26\u5bbd\u654f\u611f\u7684\u5e94\u7528<\/li>\n\n\n\n<li>\u200c<strong>\u6ce8\u610f<\/strong>\u200c\uff1aBBR \u4e3b\u8981\u4f5c\u7528\u4e8e\u200c<strong>\u670d\u52a1\u5668\u7aef<\/strong>\u200c\uff0c\u5ba2\u6237\u7aef\u65e0\u9700\u989d\u5916\u914d\u7f6e\u5373\u53ef\u751f\u6548<\/li>\n<\/ul>\n\n\n\n<p>\u7f16\u8f91 <code>\/etc\/sysctl.conf<\/code>\uff0c\u6dfb\u52a0\u4ee5\u4e0b\u4e24\u884c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">bashCopy Code<code>net.core.default_qdisc=fq<br>net.ipv4.tcp_congestion_control=bbr<\/code><\/pre>\n\n\n\n<p>\u4fdd\u5b58\u540e\u6267\u884c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">bashCopy Code<code>sudo sysctl -p  # \u4f7f\u914d\u7f6e\u7acb\u5373\u751f\u6548<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u8bbe\u7f6e\u9632\u706b\u5899<\/h4>\n\n\n\n<p>\u4e3a VPS \u9632\u706b\u5899\u542f\u7528 \u200cSSH\uff0822\u7aef\u53e3\uff09\u200c\u3001\u200cHTTP\uff0880\u7aef\u53e3\uff09\u200c\u3001\u200cHTTPS\uff08443\u7aef\u53e3\uff09\u200c \u548c \u200cHTTP\/3\u200c\uff0c\u9700\u6ce8\u610f\uff1a\u200cHTTP\/3 \u57fa\u4e8e QUIC \u534f\u8bae\uff0c\u4f7f\u7528 UDP \u7aef\u53e3\uff08\u901a\u5e38\u662f 443\uff09\u200c\uff0c\u56e0\u6b64\u9664\u5e38\u89c4 TCP \u7aef\u53e3\u5916\uff0c\u8fd8\u9700\u5f00\u653e\u5bf9\u5e94 UDP \u7aef\u53e3\u3002<br>\u200c\u5173\u952e\u64cd\u4f5c\u6b65\u9aa4\u200c<\/p>\n\n\n\n<p>\u200c\u786e\u8ba4\u7cfb\u7edf\u4f7f\u7528\u7684\u9632\u706b\u5899\u5de5\u5177\u200c\uff08\u5e38\u89c1\u6709 UFW\u3001firewalld\u3001iptables\uff09\n\u200c\u4ec5\u5f00\u653e\u5fc5\u8981\u7aef\u53e3\u200c\uff0c\u9075\u5faa\u6700\u5c0f\u6743\u9650\u539f\u5219\n\u200cHTTP\/3 \u9700\u5f00\u653e UDP 443 \u7aef\u53e3\u200c\uff0c\u800c\u4e0d\u4ec5\u662f TCP<\/p>\n\n\n\n<p>\u200c\u4e3b\u6d41\u9632\u706b\u5899\u914d\u7f6e\u793a\u4f8b\u200c<br>\u200c1. \u4f7f\u7528 UFW\uff08\u9002\u7528\u4e8e Ubuntu\/Debian\uff09\u200c<\/p>\n\n\n\n<p>\u5141\u8bb8 SSH (TCP 22)<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo ufw allow 22\/tcp<\/code><\/pre>\n\n\n\n<p>\u5141\u8bb8 HTTP (TCP 80)<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo ufw allow 80\/tcp<\/code><\/pre>\n\n\n\n<p>\u5141\u8bb8 HTTPS (TCP 443)<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo ufw allow 443\/tcp<\/code><\/pre>\n\n\n\n<p>\u5141\u8bb8 HTTP\/3 (UDP 443)<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo ufw allow 443\/udp<\/code><\/pre>\n\n\n\n<p>\u542f\u7528\/\u5173\u95edOpenLiteSpeed\u4eea\u8868\u76d8<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo ufw allow 7080\/tcp<br>sudo ufw deny 7080\/tcp<\/code><\/pre>\n\n\n\n<p>\u542f\u7528\u9632\u706b\u5899\uff08\u82e5\u5c1a\u672a\u542f\u7528\uff09<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo ufw enable<\/code><\/pre>\n\n\n\n<p>\u9a8c\u8bc1\u89c4\u5219\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo ufw status verbose<\/code><\/pre>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8bbe\u7f6eBBR BBR\uff08Bottleneck Bandwidth and Round-trip propagati [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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