CentOS에서 방화벽과 포트를 닫는 방법

###关闭防火墙 systemctl stop firewalld.service ###查看防火墙状态 [root@rocketmq-nameserverB ~]# firewall-cmd --state not running ###禁止firewalld开机启动 systemctl disable firewalld.service

firewall-cmd --state

firewall-cmd --remove-port=80/tcp --permanent ##永久移除80端口

firewall-cmd --reload