{"id":16568,"date":"2024-11-18T09:00:57","date_gmt":"2024-11-18T01:00:57","guid":{"rendered":"https:\/\/fwq.ai\/blog\/16568\/"},"modified":"2024-11-18T09:00:57","modified_gmt":"2024-11-18T01:00:57","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8linux%e8%bf%9b%e8%a1%8c%e7%bd%91%e7%bb%9c%e6%80%a7%e8%83%bd%e8%b0%83%e4%bc%98","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/16568\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528Linux\u8fdb\u884c\u7f51\u7edc\u6027\u80fd\u8c03\u4f18"},"content":{"rendered":"<p>\u5982\u4f55\u4f7f\u7528\u8fdb\u884c\u7f51\u7edc\u6027\u80fd\u8c03\u4f18<\/p>\n<p>\u7f51\u7edc\u6027\u80fd\u662f\u8ba1\u7b97\u673a\u7f51\u7edc\u4e2d\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u6307\u6807\uff0c\u5b83\u76f4\u63a5\u5173\u7cfb\u5230\u7528\u6237\u7684\u7f51\u7edc\u4f53\u9a8c\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e9b\u7b80\u5355\u7684\u7f51\u7edc\u6027\u80fd\u8c03\u4f18\u6765\u63d0\u5347\u7f51\u7edc\u7684\u4f20\u8f93\u901f\u5ea6\u548c\u7a33\u5b9a\u6027\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5e38\u89c1\u7684Linux\u7f51\u7edc\u6027\u80fd\u8c03\u4f18\u65b9\u6cd5\uff0c\u5e76\u63d0\u4f9b\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n<ol>\n<li>MTU\u8c03\u6574<\/li>\n<\/ol>\n<p>MTU\u662f\u7f51\u7edc\u4f20\u8f93\u4e2d\u6700\u5927\u4f20\u8f93\u5355\u5143\u7684\u7f29\u5199\uff0c\u5b83\u8868\u793a\u4e00\u6b21\u7f51\u7edc\u4f20\u8f93\u7684\u6700\u5927\u6570\u636e\u5305\u5927\u5c0f\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cLinux\u7cfb\u7edf\u7684MTU\u5927\u5c0f\u662f1500\u5b57\u8282\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u8fd9\u53ef\u80fd\u4e0d\u591f\u5927\uff0c\u5bfc\u81f4\u7f51\u7edc\u4f20\u8f93\u6548\u7387\u4f4e\u4e0b\u3002<\/p>\n<p>\u901a\u8fc7\u8c03\u6574MTU\u5927\u5c0f\uff0c\u6211\u4eec\u53ef\u4ee5\u63d0\u9ad8\u7f51\u7edc\u4f20\u8f93\u6548\u7387\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff0c\u7528\u4e8e\u8c03\u6574\u7f51\u7edc\u63a5\u53e3eth0\u7684MTU\u5927\u5c0f\u4e3a9000\u5b57\u8282\uff1a<\/p>\n<pre>sudo ifconfig eth0 mtu 9000<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ol>\n<li>TCP\u8fde\u63a5\u8c03\u4f18<\/li>\n<\/ol>\n<p>TCP\u662f\u6700\u5e38\u7528\u7684\u7f51\u7edc\u4f20\u8f93\u534f\u8bae\u4e4b\u4e00\uff0c\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8c03\u6574TCP\u8fde\u63a5\u53c2\u6570\u6765\u63d0\u9ad8\u7f51\u7edc\u6027\u80fd\u3002\u4e0b\u9762\u662f\u4e00\u4e9b\u5e38\u7528\u7684TCP\u8fde\u63a5\u8c03\u4f18\u53c2\u6570\u53ca\u5176\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<ul>\n<li>\u8c03\u6574TCP\u7a97\u53e3\u5927\u5c0f<\/li>\n<\/ul>\n<pre>sudo sysctl -w net.ipv4.tcp_window_scaling=1\nsudo sysctl -w net.core.rmem_max=8388608\nsudo sysctl -w net.core.wmem_max=8388608\nsudo sysctl -w net.core.rmem_default=65535\nsudo sysctl -w net.core.wmem_default=65535<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li>\u5f00\u542f\u5feb\u901f\u91cd\u4f20\u548c\u5feb\u901f\u6062\u590d<\/li>\n<\/ul>\n<pre>sudo sysctl -w net.ipv4.tcp_sack=1\nsudo sysctl -w net.ipv4.tcp_fack=1\nsudo sysctl -w net.ipv4.tcp_congestion_control=cubic<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li>\u8c03\u6574TCP\u8fde\u63a5\u8d85\u65f6\u65f6\u95f4<\/li>\n<\/ul>\n<pre>sudo sysctl -w net.ipv4.tcp_keepalive_time=120<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ol>\n<li>IP\u8def\u7531\u8c03\u4f18<\/li>\n<\/ol>\n<p>IP\u8def\u7531\u662f\u7f51\u7edc\u901a\u4fe1\u4e2d\u975e\u5e38\u91cd\u8981\u7684\u4e00\u73af\uff0c\u901a\u8fc7\u8c03\u6574IP\u8def\u7531\u8868\uff0c\u6211\u4eec\u53ef\u4ee5\u63d0\u9ad8\u7f51\u7edc\u4f20\u8f93\u6548\u7387\u3002\u4e0b\u9762\u662f\u4e00\u4e9b\u5e38\u7528\u7684IP\u8def\u7531\u8c03\u4f18\u53c2\u6570\u53ca\u5176\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<ul>\n<li>\u5173\u95edIP\u8f6c\u53d1<\/li>\n<\/ul>\n<pre>sudo sysctl -w net.ipv4.ip_forward=0<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li>\u5f00\u542f\u6e90\u5730\u5740\u9a8c\u8bc1<\/li>\n<\/ul>\n<pre>sudo sysctl -w net.ipv4.conf.all.rp_filter=1<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li>\u5f00\u542fIP\u8def\u7531\u7f13\u5b58<\/li>\n<\/ul>\n<pre>sudo sysctl -w net.ipv4.route.flush=1<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ol>\n<li>\u7cfb\u7edf\u8d44\u6e90\u8c03\u4f18<\/li>\n<\/ol>\n<p>\u9664\u4e86\u4e0a\u8ff0\u7f51\u7edc\u6027\u80fd\u8c03\u4f18\u65b9\u6cd5\u5916\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u901a\u8fc7\u8c03\u6574\u7cfb\u7edf\u8d44\u6e90\u6765\u63d0\u9ad8\u7f51\u7edc\u6027\u80fd\u3002\u4e0b\u9762\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u7cfb\u7edf\u8d44\u6e90\u8c03\u4f18\u53c2\u6570\u53ca\u5176\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<ul>\n<li>\u8c03\u6574\u6587\u4ef6\u63cf\u8ff0\u7b26\u9650\u5236<\/li>\n<\/ul>\n<pre>sudo ulimit -n 65535<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li>\u8c03\u6574\u5185\u6838\u53c2\u6570<\/li>\n<\/ul>\n<pre>sudo sysctl -w net.core.netdev_max_backlog=30000\nsudo sysctl -w net.ipv4.tcp_max_syn_backlog=8192\nsudo sysctl -w net.core.somaxconn=4096<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u7684\u7f51\u7edc\u6027\u80fd\u8c03\u4f18\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u5927\u5927\u63d0\u5347Linux\u7cfb\u7edf\u7684\u7f51\u7edc\u6027\u80fd\uff0c\u63d0\u9ad8\u7f51\u7edc\u4f20\u8f93\u901f\u5ea6\u548c\u7a33\u5b9a\u6027\u3002\u5f53\u7136\uff0c\u5177\u4f53\u7684\u8c03\u4f18\u65b9\u6cd5\u548c\u53c2\u6570\u9700\u8981\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8fdb\u884c\uff0c\u4e0d\u540c\u7684\u573a\u666f\u53ef\u80fd\u6709\u4e0d\u540c\u7684\u4f18\u5316\u65b9\u6848\u3002<\/p>\n<p>\u603b\u7ed3<\/p>\n<p>\u672c\u6587\u4ecb\u7ecd\u4e86\u5982\u4f55\u4f7f\u7528linux\u8fdb\u884c\u7f51\u7edc\u6027\u80fd\u8c03\u4f18\uff0c\u5e76\u63d0\u4f9b\u4e86\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u3002\u901a\u8fc7\u8c03\u6574MTU\u5927\u5c0f\u3001TCP\u8fde\u63a5\u53c2\u6570\u3001IP\u8def\u7531\u53c2\u6570\u4ee5\u53ca\u7cfb\u7edf\u8d44\u6e90\uff0c\u6211\u4eec\u53ef\u4ee5\u63d0\u9ad8Linux\u7cfb\u7edf\u7684\u7f51\u7edc\u6027\u80fd\uff0c\u63d0\u5347\u7f51\u7edc\u4f20\u8f93\u901f\u5ea6\u548c\u7a33\u5b9a\u6027\u3002\u540c\u65f6\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u60c5\u51b5\u8fdb\u884c\u8c03\u4f18\uff0c\u4ee5\u83b7\u5f97\u6700\u4f73\u7684\u7f51\u7edc\u6027\u80fd\u6548\u679c\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528Linux\u8fdb\u884c\u7f51\u7edc\u6027\u80fd\u8c03\u4f18\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4f7f\u7528\u8fdb\u884c\u7f51\u7edc\u6027\u80fd\u8c03\u4f18 \u7f51\u7edc\u6027\u80fd\u662f\u8ba1\u7b97\u673a\u7f51\u7edc\u4e2d\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u6307\u6807\uff0c\u5b83\u76f4\u63a5\u5173\u7cfb\u5230\u7528\u6237\u7684\u7f51\u7edc\u4f53\u9a8c\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e9b\u7b80\u5355\u7684\u7f51\u7edc\u6027\u80fd\u8c03\u4f18\u6765\u63d0\u5347\u7f51\u7edc\u7684\u4f20\u8f93\u901f\u5ea6\u548c\u7a33\u5b9a\u6027\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5e38\u89c1\u7684Linux\u7f51\u7edc\u6027\u80fd\u8c03\u4f18\u65b9\u6cd5\uff0c\u5e76\u63d0\u4f9b\u4ee3\u7801\u793a\u4f8b\u3002 MTU\u8c03\u6574 MTU\u662f\u7f51\u7edc\u4f20\u8f93\u4e2d\u6700\u5927\u4f20\u8f93\u5355\u5143\u7684\u7f29\u5199\uff0c\u5b83\u8868\u793a\u4e00\u6b21\u7f51\u7edc\u4f20\u8f93\u7684\u6700\u5927\u6570\u636e\u5305\u5927\u5c0f\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cLinux\u7cfb\u7edf\u7684MTU\u5927\u5c0f\u662f1500\u5b57\u8282\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u8fd9\u53ef\u80fd\u4e0d\u591f\u5927\uff0c\u5bfc\u81f4\u7f51\u7edc\u4f20\u8f93\u6548\u7387\u4f4e\u4e0b\u3002 \u901a\u8fc7\u8c03\u6574MTU\u5927\u5c0f\uff0c\u6211\u4eec\u53ef\u4ee5\u63d0\u9ad8\u7f51\u7edc\u4f20\u8f93\u6548\u7387\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff0c\u7528\u4e8e\u8c03\u6574\u7f51\u7edc\u63a5\u53e3eth0\u7684MTU\u5927\u5c0f\u4e3a9000\u5b57\u8282\uff1a sudo ifconfig eth0 mtu 9000 \u767b\u5f55\u540e\u590d\u5236 TCP\u8fde\u63a5\u8c03\u4f18 TCP\u662f\u6700\u5e38\u7528\u7684\u7f51\u7edc\u4f20\u8f93\u534f\u8bae\u4e4b\u4e00\uff0c\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8c03\u6574TCP\u8fde\u63a5\u53c2\u6570\u6765\u63d0\u9ad8\u7f51\u7edc\u6027\u80fd\u3002\u4e0b\u9762\u662f\u4e00\u4e9b\u5e38\u7528\u7684TCP\u8fde\u63a5\u8c03\u4f18\u53c2\u6570\u53ca\u5176\u793a\u4f8b\u4ee3\u7801\uff1a \u8c03\u6574TCP\u7a97\u53e3\u5927\u5c0f sudo sysctl -w net.ipv4.tcp_window_scaling=1 sudo sysctl -w net.core.rmem_max=8388608 sudo sysctl -w net.core.wmem_max=8388608 sudo sysctl -w net.core.rmem_default=65535 sudo sysctl -w net.core.wmem_default=65535 \u767b\u5f55\u540e\u590d\u5236 \u5f00\u542f\u5feb\u901f\u91cd\u4f20\u548c\u5feb\u901f\u6062\u590d sudo sysctl -w net.ipv4.tcp_sack=1 sudo sysctl -w net.ipv4.tcp_fack=1 sudo sysctl -w net.ipv4.tcp_congestion_control=cubic \u767b\u5f55\u540e\u590d\u5236 \u8c03\u6574TCP\u8fde\u63a5\u8d85\u65f6\u65f6\u95f4 sudo sysctl -w net.ipv4.tcp_keepalive_time=120 \u767b\u5f55\u540e\u590d\u5236 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-16568","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/16568","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=16568"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/16568\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=16568"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=16568"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=16568"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}