将当前iptables规则保存
mkdir /etc/sysconfig iptables-save > /etc/sysconfig/iptables
创建开机自启脚本
cat > /etc/network/if-pre-up.d/iptables <<-EOF #!/bin/bash /sbin/iptables-restore < /etc/sysconfig/iptables EOF
赋权
chmod +x /etc/network/if-pre-up.d/iptables