リモートクライアントが MySQL サーバーに接続できるようにする方法

# mysql -h 192.168.1.10 -u root -p
Enter password:
[Output]

ERROR 1130 (HY000): Host '192.168.1.12' is not allowed to connect to this MySQL server

# mysql -u root -p
Enter password:

mysql> GRANT ALL ON *.* to root@'192.168.1.12' IDENTIFIED BY 'new-password';
mysql> FLUSH PRIVILEGES;
mysql> quit

# mysql -h 192.168.1.10 -u root -p

[Sample Output] 
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or g.
Your MySQL connection id is 27
Server version: 5.1.69 Source distribution

Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.

mysql>