centos7 设置防火墙

1.查看已开放的端口(默认不开放任何端口)

firewall-cmd --list-ports

2.开启80端口

firewall-cmd --zone=public(作用域) --add-port=80/tcp(端口和访问类型) --permanent(永久生效)

3.重启防火墙firewall-cmd --reload

4.停止防火墙

systemctl stop firewalld.service

5.禁止防火墙开机启动

systemctl disable firewalld.service

6.删除

firewall-cmd --zone= public --remove-port=80/tcp --permanent

https://www.cnblogs.com/moxiaoan/p/5683743.html

https://blog.csdn.net/u013410747/article/details/61696178