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#firewall #linux
### 基本操作:
配置firewalld-cmd
查看版本: `firewall-cmd --version`
查看帮助: `firewall-cmd --help`
显示状态: `firewall-cmd --state`
查看所有打开的端口: `firewall-cmd --zone=public --list-ports`
更新防火墙规则: `firewall-cmd --reload`
查看区域信息:  `firewall-cmd --get-active-zones`
查看指定接口所属区域: `firewall-cmd --get-zone-of-interface=eth0`
拒绝所有包:`firewall-cmd --panic-on`
取消拒绝状态: `firewall-cmd --panic-off`
查看是否拒绝: `firewall-cmd --query-panic`
添加端口:`firewall-cmd --zone=public --add-port=31702/tcp --permanent`
重新载入:`firewall-cmd --reload`
查看:`firewall-cmd --zone=public --query-port=80/tcp`
删除:`firewall-cmd --zone=public --remove-port=80/tcp --permanent`
允许IP段对某端口的访问:`firewall-cmd --permanent --add-rich-rule="rule family="ipv4" source address="192.168.3.1/16" port protocol="tcp" port="8383" accept"`
firewall-cmd --permanent --add-rich-rule="rule family="ipv4" source address="192.168.3.1/16" port protocol="tcp" port="18180" accept"
firewall-cmd --permanent --add-rich-rule="rule family="ipv4" source address="192.168.3.1/16" port protocol="tcp" port="11434" accept"
firewall-cmd --permanent --add-forward-port=port=54320:proto=tcp:toaddr=192.168.3.225:toport=54321