建站服务器

CentOS 7.0默认使用的是firewall作为防火墙。

常用firewall命令

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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

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[hoegh@localhost Desktop]$ firewall-cmd –state

running

关闭防火墙

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[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

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[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]$

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hoegh
2017.11.3