1. 查看默认防火墙状态
firewall-cmd --state
2. 停止firewall
systemctl stop firewalld.service
3. 禁止firewall开机启动
systemctl disable firewalld.service
4. 开放防火墙具体端口
[root@localhost sbin]# firewall-cmd --zone=public --add-port=15672/tcp --permanent
[root@localhost sbin]# firewall-cmd --reload
5. 启动防火墙
systemctl start firewalld
6. 开机启用防火墙
systemctl enable firewalld