MySQL远程连接root用户的坑

# 踩坑场景

Unable to access MySQL database remotely using root account. Any attempt to access MySQL database will result in error

ERROR 1045 (28000): Access denied for user 'root'@'ip-address' (using password: YES)

• user: root
• password: 123456

# 解决方案

The above MySQL error message is a default behavior of the MySQL server to disallow a Root user to connect remotely as by default the Root user is allowed to connect to MySQL server on from localhost that is 127.0.0.1. The solution is to create a new admin user. The below SQL commands will create new user called admin and grant remote access:

mysql> CREATE USER 'admin'@'%' IDENTIFIED BY '';
Query OK, 0 rows affected (0.00 sec)

mysql> GRANT ALL PRIVILEGES ON *.* TO 'admin'@'%' WITH GRANT OPTION;
Query OK, 0 rows affected (0.00 sec)

 Alternative but not recommended solution is to grant remote MySQL access to root user:

mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456';
Query OK, 0 rows affected (0.00 sec)

 The above line will grant a privilege to the root user to connect remotely:

$ mysql -h 10.8.9.76 -P 3306 -u root -p123456
Welcome to the MariaDB monitor.  Commands end with ; or g.
Your MySQL connection id is 41
Server version: 5.5.43-0+deb8u1 (Debian)

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