1、系统初始化
systemctl stop firewalld
systemctl disable firewalld
firewall-cmd --state
cd /etc/sysconfig/network-scripts/
2、优化内核参数
修改/etc/sysctl.conf,添加如下参数:
kernel.sem = 50100 128256000 50100 2560
net.core.netdev_max_backlog = 1000
net.ipv4.tcp_max_syn_backlog = 2048
kernel.core_pattern = /corefile/core.%p.%e
kernel.core_uses_pid = 1
kernel.shmmni = 4096
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_default = 262144
net.core.wmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_max = 1048576
fs.aio-max-nr = 1048576
fs.file-max = 6815744
sysctl -p --刷新