安装

ubuntu

sudo apt update

sudo apt install iptables-persistent

启用

sudo systemctl start iptables

关闭

sudo systemctl stop iptables

重启

sudo systemctl restart netfilter-persistent

规则配置文件

文件路径 /etc/iptables

加载规则

sudo iptables-restore < /etc/iptables/rules.v4

验证

sudo iptables -t nat -L -n -v

#查看OUTPUT
sudo iptables -t nat -L OUTPUT -n -v