How to close the firewall and ports in centos

Close the firewall

The specific command is as follows:

###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

Close the specified port

The specific commands are as follows:

Check the firewall status and see if it is running

firewall-cmd --state

Close the port

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

Reload to make the previous port setting take effect

firewall-cmd --reload

Recommended tutorial: centos tutorial

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