虚拟机linux 外部访问phpmyadmin连接数据库报错

Question

报错:mysqli_real_connect():No such file or directory

然后改了phpmyadmin的配置文件config.default.php,把$cfg['service'][$i]['host']='localhost'改成$cfg['service']

[$i]['host']='127.0.0.1'就报这个错了mysqli_real_connect():Permission denied。请问大神们怎么处理？