What steps should be taken to configure a MySQL server to access and modify data in specific directories on a local machine?

To configure a MySQL server to access and modify data in specific directories on a local machine, you can set the `secure_file_priv` variable in the MySQL configuration file to restrict the directories that MySQL can read and write from. This helps prevent unauthorized access to sensitive files on the server. Additionally, make sure that the MySQL user has the necessary permissions to access the specified directories.

// Set the secure_file_priv variable in the MySQL configuration file
// This example restricts MySQL to access files only in the /var/www/html/data directory
// Update the directory path as needed
$secure_file_priv = '/var/www/html/data';

// Grant necessary permissions to the MySQL user to access the specified directory
GRANT FILE ON *.* TO 'mysql_user'@'localhost';