/etc/mysql/my.cnf 修改bind-address也不行
mysql给root远程授权也不行
阿里云安全组也添加了3306
最后发现是防火墙问题
解决办法firewall-cmd --zone=public --permanent --add-service=mysql
systemctl restart firewalld 阿里云centos Can't connect to MySQL server on ':3306' (61)
Can't connect to MySQL server on ':3306' (61)