Why Can't I Connect to My MySQL Server Remotely?

When encountering the error "Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server" while attempting to connect remotely to a MySQL server, it can be due to security restrictions.

First, ensure that the MySQL user has privileges to connect from the remote host. Check in the mysql.user table for entries associated with the user. There should be entries with "Host" values of both "localhost" and "%".

If this does not resolve the issue, consider adding a separate administrator account with restricted privileges. For example:

mysql> CREATE USER 'monty'@'localhost' IDENTIFIED BY 'some_pass';
mysql> GRANT ALL PRIVILEGES ON *.* TO 'monty'@'localhost'
    ->     WITH GRANT OPTION;
mysql> CREATE USER 'monty'@'%' IDENTIFIED BY 'some_pass';
mysql> GRANT ALL PRIVILEGES ON *.* TO 'monty'@'%'
    ->     WITH GRANT OPTION;

However, it is generally not advisable to grant full administrative privileges to a user with access from any IP address. Instead, it is recommended to create a dedicated user with only the necessary privileges and restrict access to specific hosts or IP addresses. Refer to the MySQL documentation for further guidance on access control and user management.

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