centos7 开启80和3306端口

sudo systemctl start firewalld.service
sudo firewall-cmd --list-all
sudo firewall-cmd --add-service=http --permanent
sudo firewall-cmd --add-port=80/tcp --permanent
sudo firewall-cmd --zone=public --add-port=3306/tcp --permanent
sudo firewall-cmd --reload
sudo firewall-cmd --list-all