启动防火墙
systemctl start firewalld.service
关闭防火墙
systemctl stop firewalld.service
重启防火墙
service firewalld restart
查看防火墙状态
firewall-cmd --state
配置立即生效
firewall-cmd --reload
开放端口
firewall-cmd --zone=public --add-port=5672/tcp --permanent
关闭端口
firewall-cmd --zone=public --remove-port=5672/tcp --permanent
