如何关闭防火墙？

CentOS 7.0默认使用的是firewall作为防火墙。 

常用firewall命令点击(此处)折叠或打开 
systemctl stop firewalld.service  #停止firewall 
systemctl disable firewalld.service #禁止firewall开机启动 
firewall-cmd -- state       #查看默认防火墙状态（关闭后显示notrunning，开启后显示running） 
操作示例查看防火墙状态点击(此处)折叠或打开 
[hoegh@localhost Desktop]$ firewall-cmd --state 
running 
关闭防火墙点击(此处)折叠或打开 
[hoegh@localhost Desktop]$ systemctl stop firewalld.service 
PolicyKit daemon disconnected from the bus. 
We are no longer a registered authentication agent. 
PolicyKit daemon reconnected to bus. 
Attempting to re-register as an authentication agent. 
We are now a registered authentication agent. 
[hoegh@localhost Desktop]$ 
[hoegh@localhost Desktop]$ firewall-cmd --state 
not running 
[hoegh@localhost Desktop]$ 
禁止自动启动点击(此处)折叠或打开 
[hoegh@localhost Desktop]$ 
[hoegh@localhost Desktop]$ systemctl disable firewalld.service 
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service. 
Removed symlink /etc/systemd/system/basic.target.wants/firewalld.service. 
[hoegh@localhost Desktop]$ 
~~~~~~~ the end~~~~~~~~~hoegh2017.11.3 

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