firewall 如何開放端口

轉自官方網頁：http://www.firewalld.org/documentation/howto/open-a-port-or-service.html

How to open port 80/tcp with firewall-cmd:

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

重啓後才能生效

Reload firewalld

firewall-cmd --reload