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vi /etc/sysctl.conf #直接在配置文件底部加入一下修改即可。 net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_tw_reuse = 1 net.ipv4.tcp_tw_recycle = 1 net.ipv4.ip_local_port_range = 1024 65000 net.ipv4.tcp_max_syn_backlog = 8192 net.ipv4.tcp_max_tw_buckets = 5000 net.ipv4.tcp_max_syn_backlog = 65536 net.core.netdev_max_backlog = 32768 net.core.somaxconn = 32768 net.core.wmem_default = 8388608 net.core.rmem_default = 8388608 net.core.rmem_max = 16777216 net.core.wmem_max = 16777216 net.ipv4.tcp_timestamps = 0 net.ipv4.tcp_synack_retries = 2 net.ipv4.tcp_syn_retries = 2 net.ipv4.tcp_tw_recycle = 1 net.ipv4.tcp_tw_reuse = 1 net.ipv4.tcp_mem = 94500000 915000000 927000000 net.ipv4.tcp_max_orphans = 3276800 让改动配置立即生效 /sbin/sysctl –p修改ulimit 1.vi /etc/security/limits.conf * soft nproc 65535 * hard nproc 65535 * soft nofile 65535 * hard nofile 65535 2. vi /etc/security/limits.d/90-nproc.conf * soft nproc 65535 记得重启服务器 关于ulimit的具体描述可以到一下网址查看。 http://www.ibm.com/developerworks/cn/linux/l-cn-ulimit/ (责任编辑：IT) |