{"id":208756,"date":"2025-09-29T21:30:42","date_gmt":"2025-09-29T13:30:42","guid":{"rendered":"https:\/\/www.server.hk\/blog\/208756\/"},"modified":"2025-09-29T21:30:43","modified_gmt":"2025-09-29T13:30:43","slug":"vps-91","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/208756\/","title":{"rendered":"\u9999\u6e2fVPS\u5b9e\u6218\uff1a\u7528 tc \u7cbe\u51c6\u4f18\u5316\u5e26\u5bbd\u5206\u914d\u4e0e\u6d41\u91cf\u63a7\u5236"},"content":{"rendered":"<p>\u5728\u9999\u6e2fVPS\u4e0a\u7cbe\u7ec6\u63a7\u5236\u5e26\u5bbd\u4e0e\u6d41\u91cf\uff0c\u662f\u63d0\u5347\u670d\u52a1\u7a33\u5b9a\u6027\u3001\u964d\u4f4e\u5ef6\u8fdf\u3001\u907f\u514d\u7a81\u53d1\u6d41\u91cf\u51b2\u51fb\u7684\u5173\u952e\u4e00\u73af\u3002\u672c\u6587\u9762\u5411\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u4e0e\u5f00\u53d1\u8005\uff0c\u57fa\u4e8e Linux \u81ea\u5e26\u7684 tc\uff08traffic control\uff09\u5de5\u5177\uff0c\u7cfb\u7edf\u6027\u8bb2\u89e3\u539f\u7406\u3001\u5e38\u89c1\u5e94\u7528\u573a\u666f\u4e0e\u5b9e\u6218\u547d\u4ee4\u793a\u4f8b\uff0c\u5e76\u5bf9\u6bd4\u4e0d\u540c\u65b9\u6848\u4f18\u52a3\uff0c\u6700\u540e\u7ed9\u51fa\u9009\u8d2d\u5efa\u8bae\uff0c\u5e2e\u52a9\u4f60\u5728\u9999\u6e2fVPS\u6216\u7f8e\u56fdVPS\u7b49\u4e91\u4e3b\u673a\u73af\u5883\u4e2d\u5b9e\u73b0\u53ef\u63a7\u3001\u53ef\u89c2\u6d4b\u7684\u7f51\u7edc\u6d41\u91cf\u7ba1\u7406\u3002<\/p>\n<h2>\u6d41\u91cf\u63a7\u5236\u539f\u7406\u4e0e\u5e38\u7528\u6982\u5ff5<\/h2>\n<p>tc \u662f Linux \u5185\u6838\u7684\u6d41\u91cf\u63a7\u5236\u5b50\u7cfb\u7edf\uff0c\u4ece qdisc\uff08\u961f\u5217\u89c4\u5219\uff09\u5f00\u59cb\uff0c\u914d\u5408 class\uff08\u7c7b\uff09\u548c filter\uff08\u8fc7\u6ee4\u5668\uff09\u5b9e\u73b0\u7cbe\u7ec6\u5316\u7684\u5e26\u5bbd\u5206\u914d\u3002\u5e38\u89c1\u6982\u5ff5\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>qdisc\uff08\u961f\u5217\u89c4\u5219\uff09<\/strong>\uff1a\u9644\u7740\u5728\u7f51\u5361\uff08\u5982 eth0\uff09\u4e0a\u7684\u6d41\u91cf\u8c03\u5ea6\u5668\uff0c\u5e38\u89c1\u7684\u6709 pfifo_fast\u3001htb\u3001fq_codel \u7b49\u3002<\/li>\n<li><strong>class\uff08\u7c7b\uff09<\/strong>\uff1a\u4ec5 classful qdisc\uff08\u5982 HTB\uff09\u6709\uff0c\u5141\u8bb8\u6309\u4f18\u5148\u7ea7\u6216\u914d\u989d\u5206\u914d\u5e26\u5bbd\u3002<\/li>\n<li><strong>filter\uff08\u8fc7\u6ee4\u5668\uff09<\/strong>\uff1a\u6839\u636e IP\u3001\u7aef\u53e3\u3001fwmark \u7b49\u5339\u914d\u6d41\u91cf\uff0c\u628a\u6d41\u91cf\u5bfc\u5165\u5230\u5bf9\u5e94 class\u3002<\/li>\n<li><strong>policing \u4e0e shaping<\/strong>\uff1apolicing \u662f\u901f\u7387\u9650\u5236\u5e76\u4e22\u5f03\u8d85\u989d\u6570\u636e\u5305\uff0cshaping \u662f\u6392\u961f\u5ef6\u8fdf\u53d1\u9001\u4ee5\u5e73\u6ed1\u7a81\u53d1\u3002<\/li>\n<li><strong>ingress \u4e0e egress<\/strong>\uff1aegress\uff08\u51fa\u7ad9\uff09\u53ef\u76f4\u63a5\u7528 tc \u63a7\u5236\uff1bingress\uff08\u5165\u7ad9\uff09\u901a\u5e38\u9700\u8981\u4f7f\u7528 ifb\uff08\u4e2d\u65ad\u8f6c\u53d1\uff09\u6216 ingress policing \u505a\u955c\u50cf\u64cd\u63a7\u3002<\/li>\n<\/ul>\n<h3>\u5e38\u7528 qdisc \u9009\u62e9<\/h3>\n<ul>\n<li><strong>HTB\uff08hierarchical token bucket\uff09<\/strong>\uff1a\u9002\u5408\u7cbe\u51c6\u5206\u914d\u5e26\u5bbd\uff0c\u80fd\u5efa\u7acb\u5c42\u6b21\u5316\u7c7b\uff0c\u5e38\u7528\u4e8e\u5171\u4eab\u5e26\u5bbd\u5206\u914d\u573a\u666f\u3002<\/li>\n<li><strong>fq_codel<\/strong>\uff1a\u9762\u5411\u7f13\u89e3\u961f\u5934\u963b\u585e\u548c\u964d\u4f4e\u5ef6\u8fdf\uff0c\u9002\u5408\u4f4e\u5ef6\u8fdf\u8981\u6c42\u7684\u5e94\u7528\u3002<\/li>\n<li><strong>pfifo_fast<\/strong>\uff1a\u9ed8\u8ba4\u7b80\u5355\u961f\u5217\uff0c\u65e0\u6cd5\u505a\u590d\u6742\u5206\u914d\u3002<\/li>\n<\/ul>\n<h2>\u9999\u6e2fVPS\u4e0a\u7684\u5b9e\u6218\u573a\u666f\u4e0e\u547d\u4ee4\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u793a\u4f8b\u5728\u5178\u578b\u7684\u9999\u6e2fVPS\uff08\u5355\u7f51\u5361 eth0\uff09\u4e0a\u6267\u884c\uff0c\u5c55\u793a\u5982\u4f55\u57fa\u4e8e HTB \u5b9e\u65bd\u5e26\u5bbd\u5206\u914d\u3001\u57fa\u4e8e fwmark\/iptables \u505a\u667a\u80fd\u8def\u7531\u548c\u4f18\u5148\u7ea7\u3001\u4ee5\u53ca ingress \u63a7\u5236\u7684\u5e38\u89c1\u505a\u6cd5\u3002\u8bf7\u5728 root \u6216 sudo \u4e0b\u6267\u884c\uff0c\u5e76\u6839\u636e\u5b9e\u9645\u7f51\u5361\u4e0e\u5e26\u5bbd\u8c03\u6574\u6570\u503c\u3002<\/p>\n<h3>\u573a\u666f\u4e00\uff1a\u5c06 100Mbps \u7684\u5e26\u5bbd\u6309\u670d\u52a1\u5206\u914d\uff08Web\/\u4e0b\u8f7d\/\u5907\u4efd\uff09<\/h3>\n<p>\u76ee\u6807\uff1a100Mbps \u603b\u5e26\u5bbd\uff0c\u5206\u914d\u5982\u4e0b\uff1aWeb 40Mbps\uff08\u9ad8\u4f18\u5148\uff09\u3001\u4e0b\u8f7d 40Mbps\uff08\u4e2d\u4f18\u5148\uff09\u3001\u5907\u4efd 20Mbps\uff08\u4f4e\u4f18\u5148\uff09\u3002<\/p>\n<p>\u547d\u4ee4\uff08\u793a\u4f8b\uff09\uff1a<\/p>\n<p><code>tc qdisc add dev eth0 root handle 1: htb default 30<\/code><br \/>\n<code>tc class add dev eth0 parent 1: classid 1:1 htb rate 100mbit<\/code><br \/>\n<code>tc class add dev eth0 parent 1:1 classid 1:10 htb rate 40mbit ceil 100mbit prio 1<\/code><br \/>\n<code>tc class add dev eth0 parent 1:1 classid 1:20 htb rate 40mbit ceil 100mbit prio 2<\/code><br \/>\n<code>tc class add dev eth0 parent 1:1 classid 1:30 htb rate 20mbit ceil 100mbit prio 3<\/code><\/p>\n<p>\u63a5\u7740\u6839\u636e\u7aef\u53e3\u6216 IP \u505a\u8fc7\u6ee4\u5668\uff08\u793a\u4f8b\u4ee5 80\/443 \u4e3a Web\uff09\uff1a<\/p>\n<p><code>tc filter add dev eth0 protocol ip parent 1:0 prio 1 u32 match ip dport 80 0xffff flowid 1:10<\/code><br \/>\n<code>tc filter add dev eth0 protocol ip parent 1:0 prio 1 u32 match ip dport 443 0xffff flowid 1:10<\/code><br \/>\n<code>tc filter add dev eth0 protocol ip parent 1:0 prio 2 u32 match ip sport 21 0xffff flowid 1:20<\/code><\/p>\n<p>\u8bf4\u660e\uff1a\u4f7f\u7528 u32 \u76f4\u63a5\u5339\u914d\u7aef\u53e3\u9002\u7528\u4e8e\u7b80\u5355\u573a\u666f\uff1b\u590d\u6742\u573a\u666f\u5efa\u8bae\u4f7f\u7528 iptables \u6807\u8bb0\uff08MARK\uff09+ tc fw filter \u6765\u5b9e\u73b0\u66f4\u7075\u6d3b\u7684\u5339\u914d\u3002<\/p>\n<h3>\u573a\u666f\u4e8c\uff1a\u57fa\u4e8e iptables \u6807\u8bb0\u505a\u591a\u79df\u6237\/\u591a\u7ad9\u70b9\u5206\u914d<\/h3>\n<p>\u6b65\u9aa4\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528 iptables \u5c06\u4e0d\u540c\u6765\u6e90\uff08\u6216\u76ee\u6807\uff09\u7684\u6d41\u91cf\u6253\u4e0a\u4e0d\u540c\u7684 mark\u3002<\/li>\n<li>\u7528 tc \u7684 fw\uff08fwmark\uff09\u8fc7\u6ee4\u5668\u628a mark \u5bfc\u5165\u5bf9\u5e94 class\u3002<\/li>\n<\/ul>\n<p>\u793a\u4f8b\uff1a<\/p>\n<p><code>iptables -t mangle -A PREROUTING -s 10.0.0.0\/24 -j MARK --set-mark 10<\/code><br \/>\n<code>iptables -t mangle -A PREROUTING -s 10.0.1.0\/24 -j MARK --set-mark 20<\/code><br \/>\n<code>tc filter add dev eth0 protocol ip parent 1:0 prio 1 handle 10 fw flowid 1:10<\/code><br \/>\n<code>tc filter add dev eth0 protocol ip parent 1:0 prio 1 handle 20 fw flowid 1:20<\/code><\/p>\n<p>\u4f18\u70b9\uff1a\u975e\u5e38\u7075\u6d3b\uff0c\u53ef\u6309 IP \u6bb5\u3001\u7aef\u53e3\u3001TLS SNI\uff08\u914d\u5408 TPROXY \u6216 Layer7 \u5de5\u5177\uff09\u7b49\u7ef4\u5ea6\u6253 mark\u3002<\/p>\n<h3>\u573a\u666f\u4e09\uff1a\u63a7\u5236\u5165\u7ad9\u6d41\u91cf\uff08ingress\uff09<\/h3>\n<p>\u95ee\u9898\uff1aLinux \u539f\u751f\u53ea\u63a7\u5236\u51fa\u7ad9\u5bb9\u6613\uff0c\u5bf9\u5165\u7ad9\u9700\u7528 ifb \u5c06 ingress \u91cd\u5b9a\u5411\u5230\u865a\u62df\u63a5\u53e3\uff0c\u518d\u7528 tc \u505a shaping\u3002<\/p>\n<p>\u793a\u4f8b\uff1a<\/p>\n<p><code>modprobe ifb numifbs=1<\/code><br \/>\n<code>ip link set dev ifb0 up<\/code><br \/>\n<code>tc qdisc add dev eth0 handle ffff: ingress<\/code><br \/>\n<code>tc filter add dev eth0 parent ffff: protocol ip u32 match u32 0 0 action mirred egress redirect dev ifb0<\/code><br \/>\n<code>tc qdisc add dev ifb0 root handle 1: htb default 30<\/code><br \/>\n\uff08\u7136\u540e\u5728 ifb0 \u4e0a\u6309\u524d\u8ff0\u65b9\u6cd5\u5efa class \u4e0e filter\uff09<\/p>\n<p>\u6ce8\u610f\uff1a\u5728 VPS \u73af\u5883\uff08\u5c24\u5176\u662f\u865a\u62df\u5316\u5e73\u53f0\uff09\u4e0b\uff0c\u5bbf\u4e3b\u673a\u6216\u4e0a\u5c42\u7f51\u7edc\u53ef\u80fd\u4e5f\u4f1a\u5f71\u54cd\u5230\u5165\u7ad9\u5e26\u5bbd\uff0c\u82e5\u9047\u5230\u65e0\u6cd5\u751f\u6548\u7684\u60c5\u51b5\uff0c\u8bf7\u4e0e\u63d0\u4f9b\u5546\uff08\u5982\u9999\u6e2f\u670d\u52a1\u5668\u5546\uff09\u786e\u8ba4\u4e0a\u5c42\u9650\u901f\u7b56\u7565\u3002<\/p>\n<h2>\u76d1\u6d4b\u3001\u6d4b\u8bd5\u4e0e\u8c03\u4f18\u65b9\u6cd5<\/h2>\n<p>\u5728\u5b9e\u65bd\u6d41\u91cf\u63a7\u5236\u540e\uff0c\u5fc5\u987b\u6d4b\u91cf\u4e0e\u8c03\u4f18\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528 iperf3\/iperf \u6d4b\u901f\uff0c\u9a8c\u8bc1\u5355\u6d41\u548c\u5e76\u53d1\u6d41\u4e0b\u7684\u5b9e\u9645\u5e26\u5bbd\u3002<\/li>\n<li>\u7528 tc -s qdisc show \/ tc -s class show \u67e5\u770b\u961f\u5217\u7edf\u8ba1\uff0c\u627e\u51fa\u4e22\u5305\u6216\u9971\u548c class\u3002<\/li>\n<li>\u4f7f\u7528 bmon\u3001ifstat \u6216 netdata \u5bf9\u6d41\u91cf\u4e0e\u5ef6\u8fdf\u8fdb\u884c\u957f\u671f\u76d1\u63a7\u3002<\/li>\n<li>\u5bf9\u4e8e Web \u573a\u666f\uff0c\u5173\u6ce8 95%\/99% \u5ef6\u8fdf\uff0c\u907f\u514d\u77ed\u65f6\u95f4\u5185\u628a\u6240\u6709\u5e26\u5bbd\u90fd\u5206\u914d\u7ed9\u4f4e\u4f18\u5148\u7ea7\u4efb\u52a1\uff08\u5982\u5907\u4efd\uff09\u3002<\/li>\n<\/ul>\n<h2>\u4e0e\u5176\u4ed6\u6d41\u91cf\u7ba1\u7406\u5de5\u5177\u7684\u5bf9\u6bd4\u4e0e\u9002\u7528\u6027<\/h2>\n<p>\u5e38\u89c1\u66ff\u4ee3\u65b9\u6848\u5305\u62ec\u5e94\u7528\u5c42\u9650\u901f\uff08\u5982 Nginx rate_limit\u3001rsync &#8211;bwlimit\uff09\u4e0e\u786c\u4ef6\/\u4e0a\u5c42\u8def\u7531\u5668\u7b56\u7565\u3002\u5bf9\u6bd4\u8981\u70b9\uff1a<\/p>\n<ul>\n<li><strong>\u5185\u6838\u7ea7 tc<\/strong>\uff1a\u6700\u7cbe\u786e\u3001\u5ef6\u8fdf\u4f4e\u3001\u9002\u5408 VPS\/\u670d\u52a1\u5668\u573a\u666f\uff0c\u53ef\u5bf9\u6240\u6709\u534f\u8bae\u751f\u6548\u3002<\/li>\n<li>\u5e94\u7528\u5c42\u9650\u901f\uff1a\u5b9e\u73b0\u7b80\u5355\uff0c\u9002\u5408\u5355\u4e00\u670d\u52a1\uff0c\u4f46\u65e0\u6cd5\u7edf\u4e00\u7ba1\u63a7\u591a\u670d\u52a1\u6216\u591a\u79df\u6237\u6d41\u91cf\u3002<\/li>\n<li>\u4e0a\u6e38\u8bbe\u5907\u9650\u901f\uff08\u4e91\u63d0\u4f9b\u5546\u6216\u5bbf\u4e3b\u673a\u7b56\u7565\uff09\uff1a\u53ef\u80fd\u66f4\u7a33\u5b9a\uff0c\u4f46\u7075\u6d3b\u6027\u53d7\u9650\uff0c\u4e14\u4e0d\u5728\u7528\u6237\u63a7\u5236\u8303\u56f4\u3002<\/li>\n<\/ul>\n<p>\u5728\u5bf9\u6bd4\u9999\u6e2fVPS \u4e0e \u7f8e\u56fdVPS\/\u7f8e\u56fd\u670d\u52a1\u5668 \u7b49\u65f6\u673a\u623f\u4f4d\u7f6e\u3001\u5e26\u5bbd\u6210\u672c\u4e0e\u5ef6\u8fdf\u9700\u6c42\u4e5f\u4f1a\u5f71\u54cd\u7b56\u7565\u9009\u62e9\u3002\u6bd4\u5982\u9762\u5411\u4e9a\u592a\u7528\u6237\u65f6\uff0c\u9999\u6e2fVPS \u601d\u8def\u662f\u4f18\u5148\u4fdd\u8bc1\u4f4e\u5ef6\u8fdf\uff08\u4f7f\u7528 fq_codel \u4e0e\u5c0f\u961f\u5217\u5ef6\u8fdf\u4f18\u5148\uff09\uff0c\u9762\u5411\u5317\u7f8e\u7528\u6237\u65f6\uff0c\u53ef\u80fd\u66f4\u5173\u6ce8\u51fa\u53e3\u5e26\u5bbd\u7684\u5cf0\u503c\u9650\u5236\u3002<\/p>\n<h2>\u5e38\u89c1\u95ee\u9898\u4e0e\u6ce8\u610f\u4e8b\u9879<\/h2>\n<ul>\n<li>VPS \u63d0\u4f9b\u5546\u53ef\u80fd\u5728\u5bbf\u4e3b\u673a\u5c42\u9762\u9650\u901f\u6216\u5b9e\u65bd\u6d41\u91cf\u6e05\u6d17\uff0c\u8fd9\u4f1a\u5e72\u6270 tc \u7684\u6548\u679c\uff0c\u6d4b\u8bd5\u524d\u5e94\u5148\u786e\u8ba4\u65e0\u4e0a\u5c42\u9650\u901f\u3002<\/li>\n<li>\u5bf9\u4e8e\u52a0\u5bc6\u6d41\u91cf\uff08\u5982 TLS\uff09\uff0c\u53ea\u80fd\u57fa\u4e8e IP\/\u7aef\u53e3\u6216 fwmark \u505a\u5206\u7c7b\uff0c\u65e0\u6cd5\u76f4\u63a5\u5224\u65ad\u5e94\u7528\u7c7b\u578b\uff0c\u9664\u975e\u5728\u5e94\u7528\u5c42\u6253\u6807\u3002<\/li>\n<li>\u914d\u7f6e\u6301\u4e45\u5316\uff1atc \u914d\u7f6e\u91cd\u542f\u540e\u4e22\u5931\uff0c\u5e94\u5c06\u547d\u4ee4\u5199\u5165\u542f\u52a8\u811a\u672c\u6216\u4f7f\u7528\u7f51\u7edc\u7ba1\u7406\u5de5\u5177\uff08\u5982 systemd unit\u3001ifup scripts\uff09\u6301\u4e45\u5316\u3002<\/li>\n<li>\u5b89\u5168\u6027\uff1a\u5728\u591a\u79df\u6237\u573a\u666f\u4e0b\uff0c\u5408\u7406\u9650\u5236\u6bcf\u4e2a\u79df\u6237\u5e26\u5bbd\u5e76\u914d\u5408\u6d41\u91cf\u76d1\u63a7\uff0c\u9632\u6b62\u5355\u7528\u6237\u6d41\u91cf\u653b\u51fb\u5f71\u54cd\u6574\u4e2a VPS \u5b9e\u4f8b\u3002<\/li>\n<\/ul>\n<h2>\u9009\u8d2d\u5efa\u8bae\uff1a\u5982\u4f55\u4e3a\u6d41\u91cf\u63a7\u5236\u9009\u62e9\u5408\u9002\u7684 VPS<\/h2>\n<p>\u5728\u6311\u9009\u9999\u6e2fVPS \u6216 \u7f8e\u56fdVPS \u65f6\uff0c\u8003\u8651\u4ee5\u4e0b\u8981\u70b9\u53ef\u4ee5\u8ba9\u4f60\u66f4\u987a\u5229\u5730\u5b9e\u65bd tc 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target=\"_blank\" rel=\"noopener\">https:\/\/www.server.hk\/cloud.php<\/a>\u3002\u6b64\u5916\uff0c\u82e5\u9700\u4e86\u89e3\u66f4\u591a\u670d\u52a1\u4e0e\u673a\u623f\u9009\u578b\uff0c\u4e5f\u53ef\u67e5\u770b\u9996\u9875\uff1a<a href=\"https:\/\/www.server.hk\/\" target=\"_blank\" rel=\"noopener\">https:\/\/www.server.hk\/<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u60f3\u964d\u4f4e\u5ef6\u8fdf\u3001\u907f\u514d\u7a81\u53d1\u6d41\u91cf\u51b2\u51fb\u5e76\u63d0\u5347\u670d\u52a1\u7a33\u5b9a\u6027\uff1f\u672c\u6587\u9762\u5411\u7ad9\u957f\u4e0e\u5f00\u53d1\u8005\uff0c\u624b\u628a\u624b\u7528 tc \u6559\u4f60\u5728\u9999\u6e2fVPS\u4e0a\u4ece qdisc \u5230 filter \u5b9e\u73b0\u7cbe\u7ec6\u5e26\u5bbd\u5206\u914d\uff0c\u5e76\u901a\u8fc7\u5b9e\u6218\u547d\u4ee4\u3001\u573a\u666f\u5bf9\u6bd4\u4e0e\u9009\u8d2d\u5efa\u8bae\uff0c\u5e2e\u4f60\u8f7b\u677e\u8fbe\u5230\u53ef\u89c2\u6d4b\u3001\u53ef\u63a7\u7684\u9999\u6e2fVPS 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