Centos 7 永久关闭防火墙
查看防火墙状态
systemctl status firewalld
出现：Active: inactive (dead)，代表防火墙已关闭
临时关闭防火墙
重启后，防火墙会重新开启
systemctl stop firewalld.service
永久关闭防火墙
systemctl disable firewalld.service
systemctl status firewalld
出现：Active: inactive (dead)，代表防火墙已关闭
重启后，防火墙会重新开启
systemctl stop firewalld.service
systemctl disable firewalld.service
