1、firewalld的基本使用
启动: systemctl start firewalld
关闭: systemctl stop firewalld
查看状态: systemctl status firewalld
开机禁用: systemctl disable firewalld
开机启用: systemctl enable firewalld
启动: systemctl start firewalld
关闭: systemctl stop firewalld
查看状态: systemctl status firewalld
开机禁用: systemctl disable firewalld
开机启用: systemctl enable firewalld