BBR开启

echo "net.core.default_qdisc=fq" >> /etc/sysctl.conf
echo "net.ipv4.tcp_congestion_control=bbr" >> /etc/sysctl.conf
sysctl -p

# 查看开启状态
sysctl net.ipv4.tcp_available_congestion_control

网络优化配置

fs.file-max = 1000000
fs.inotify.max_user_instances = 8192
net.ipv4.tcp_tw_reuse = 1
net.ipv4.ip_local_port_range = 1024 65535
net.ipv4.tcp_rmem = 16384 262144 8388608
net.ipv4.tcp_wmem = 32768 524288 16777216
net.core.somaxconn = 8192
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216
net.core.wmem_default = 2097152
net.ipv4.tcp_max_tw_buckets = 5000
net.ipv4.tcp_max_syn_backlog = 10240
net.core.netdev_max_backlog = 10240
net.ipv4.tcp_slow_start_after_idle = 0

# forward ipv4
net.ipv4.ip_forward = 1

修改主机名

hostnamectl set-hostname XXX