1、
https://www.jianshu.com/p/e52c41be32ac
开启防火墙
systemctl start firewalld.service
防火墙开机启动
systemctl enable firewalld.service
关闭防火墙
systemctl stop firewalld.service
查看防火墙状态
firewall-cmd --state
查看现有的规则
iptables -nL
重载防火墙配置
firewall-cmd --reload
添加单个单端口
firewall-cmd --permanent --zone=public --add-port=81/tcp
添加多个端口
firewall-cmd --permanent --zone=public --add-port=8080-8083/tcp
删除某个端口
firewall-cmd --permanent --zone=public --remove-port=81/tcp
针对某个 IP开放端口
firewall-cmd --permanent --add-rich-rule="rule family="ipv4" source address="192.168.142.166" port protocol="tcp" port="6379" accept"
firewall-cmd --permanent --add-rich-rule="rule family="ipv4" source address="192.168.0.233" accept"
删除某个IP
firewall-cmd --permanent --remove-rich-rule="rule family="ipv4" source address="192.168.1.51" accept"
针对一个ip段访问
firewall-cmd --permanent --add-rich-rule="rule family="ipv4" source address="192.168.0.0/16" accept"
firewall-cmd --permanent --add-rich-rule="rule family="ipv4" source address="192.168.1.0/24" port protocol="tcp" port="9200" accept"
添加操作后别忘了执行重载
firewall-cmd --reload
作者：风亡小窝
链接：https://www.jianshu.com/p/e52c41be32ac
来源：简书
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