• 首要条件防火墙是开启的

systemctl start firewalld

• 查看防火墙的配置

firewall-cmd --state
firewall-cmd --list-all

• 开放端口

firewall-cmd --permanent --add-port=80/tcp
firewall-cmd --reload #重新加载防火墙配置才会起作用

• 移除端口

firewall-cmd --permanent --remove-port=80/tcp
firewall-cmd --reload

• 放通某个端口段

firewall-cmd --permanent --zone=public --add-port=1000-2000/tcp
firewall-cmd --reload

• 放通某个IP访问，默认允许

firewall-cmd --permanent --add-rich-rule='rule family=ipv4 source address=192.168.1.169 accept'
firewall-cmd --reload

• 禁止某个IP访问

firewall-cmd --permanent --add-rich-rule='rule family=ipv4 source address=10.0.0.42 drop'
firewall-cmd --reload

• 放通某个IP访问某个端口

firewall-cmd --permanent --add-rich-rule='rule family=ipv4 source address=192.168.1.169 port protocol=tcp port=6379 accept'
firewall-cmd --reload

• 移除某个IP访问某个端口

firewall-cmd --permanent --remove-rich-rule='rule family="ipv4" source address="192.168.1.169" port port="6379" protocol="tcp" accept'
firewall-cmd --reload

• 放通某个IP段访问

firewall-cmd --permanent --add-rich-rule='rule family=ipv4 source address=10.0.0.0/24 accept'
firewall-cmd --reload

• 移除某个IP段访问

firewall-cmd --permanent --remove-rich-rule='rule family=ipv4 source address=10.0.0.0/24 accept'
firewall-cmd --reload