查看firewalld状态：
systemctl status firewalld
临时关闭firewalld：
systemctl stop firewalld
永久关闭firewalld：
systemctl disable firewalld
查看firewalld状态：
systemctl status firewalld
临时关闭firewalld：
systemctl stop firewalld
永久关闭firewalld：
systemctl disable firewalld