1.安装
systemctl stop firewalld
systemctl mask firewalld
yum install iptables-services
2.开机启动
systemctl enable iptables
3.相关命令
systemctl stop iptables
systemctl start iptables
systemctl restart iptables
systemctl reload iptables
service iptables save
4.添加端口
vi /etc/sysconfig/iptables
然后在文本中添加需要的端口
