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Nginx优化设需要我们注意很多事情，在配置中当keepalive起用的时候，TCP发送keepalive消息的频度。缺省是2小时。其实这些都不是什么太大的问题，下面就是一个完整的Nginx优化设置：
Nginx优化设置引用
net.ipv4.ip_forward = 0 - net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.default.accept_source_route = 0 - kernel.sysrq = 0
kernel.core_uses_pid = 1 - net.ipv4.tcp_syncookies = 1
kernel.msgmnb = 65536 - kernel.msgmax = 65536
kernel.shmmax = 68719476736 - kernel.shmall = 4294967296
net.ipv4.tcp_max_tw_buckets = 6000 - net.ipv4.tcp_sack = 1
net.ipv4.tcp_window_scaling = 1 - net.ipv4.tcp_rmem = 4096 87380 4194304
net.ipv4.tcp_wmem = 4096 16384 4194304 - net.core.wmem_default = 8388608
net.core.rmem_default = 8388608 - net.core.rmem_max = 16777216
net.core.wmem_max = 16777216 - net.core.netdev_max_backlog = 262144
net.core.somaxconn = 262144 - net.ipv4.tcp_max_orphans = 3276800
net.ipv4.tcp_max_syn_backlog = 262144 - net.ipv4.tcp_timestamps = 0
net.ipv4.tcp_synack_retries = 1 - net.ipv4.tcp_syn_retries = 1
net.ipv4.tcp_tw_recycle = 1 - net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_mem = 94500000 915000000 927000000 - net.ipv4.tcp_fin_timeout = 1
net.ipv4.tcp_keepalive_time = 30 - net.ipv4.ip_local_port_range = 1024 65000
以上就是对Nginx配置文件的详细介绍。
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