centos7 打開3306端口
firewall-cmd --zone=public --add-port=3306/tcp --permanent
firewall-cmd --reload
firewall-cmd --query-port=80/tcp(查詢)
systemctl stop firewalld.service #停止
systemctl disable firewalld.service #禁用
centos7 打開3306端口
firewall-cmd --zone=public --add-port=3306/tcp --permanent
firewall-cmd --reload
firewall-cmd --query-port=80/tcp(查詢)
systemctl stop firewalld.service #停止
systemctl disable firewalld.service #禁用