Linux CentOS 7防火墙常用命令汇总

systemctl命令：

1、启动防火墙

systemctl start firewalld.service

或

systemctl start firewalld

2、关闭防火墙

systemctl stop firewalld.service

或

systemctl stop firewalld

3、重启防火墙

systemctl restart firewalld.service

或

systemctl restart firewalld

4、查看防火墙状态

firewall-cmd --state

systemctl status firewalld.service

或

systemctl status firewalld

5、开机禁用防火墙

systemctl disable firewalld.service

或

systemctl disable firewalld

6、开机启用防火墙

systemctl enable firewalld.service

或

systemctl enable firewalld

7、查看防火墙开机是否启动

systemctl is-enabled firewalld.service

或

systemctl is-enabled firewalld

8、查看已启动的服务列表

systemctl list-unit-files|grep enabled

9、查看启动失败的服务列表

systemctl --failed

firewall-cmd命令：

1、开启80端口，重启后失效

firewall-cmd --zone=public --add-port=80/tcp

2、开启80端口，重启后不失效（永久生效）

firewall-cmd --zone=public --add-port=80/tcp --permanent

3、查看80端口

firewall-cmd --zone=public --query-port=80/tcp

4、查看所有打开的端口

firewall-cmd --zone=public --list-ports

5、关闭80端口、重启后失效

firewall-cmd --zone=public --remove-port=80/tcp

6、关闭80端口，重启后不失效

firewall-cmd --zone=public --remove-port=80/tcp --permanent

7、查看版本

firewall-cmd --version

8、查看帮助

firewall-cmd --help

9、查看区域信息

firewall-cmd --get-active-zones

10、查看指定接口所属区域

firewall-cmd --get-zone-of-interface=eth0

11、开启拒绝所有包请求

firewall-cmd --panic-on

12、取消拒绝所有包请求

firewall-cmd --panic-off

13、查看是否拒绝

firewall-cmd --query-panic

14、查看防火墙规则

firewall-cmd --list-all