MySQL 'Access Denied for User 'root'' Error: How Do I Fix It?

Access Denied for User 'root' With Password: Addressing the MySQL Error

When deploying a web application, encountering the MySQL database exception "Access denied for user 'root'@'localhost' (using password: YES)" can be frustrating. This error indicates that the root user is unable to access the MySQL database from the deployed application.

Cause:

The error typically occurs when the 'root' user lacks the necessary permissions to connect to the MySQL database. This can happen due to incorrect user privileges or a firewall blocking access.

Solution:

To resolve this issue, you need to grant access to the 'root' user from the 'localhost' host.

Steps:

1. Connect to MySQL: From the command prompt, connect to MySQL using the 'root' user with the '-p' option to enter your password:

   mysql -u root -p

2. Grant Access: Grant permissions to the 'root' user to access the database from the 'localhost' host:

   GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' IDENTIFIED BY 'your_password';

3. Flush Privileges: Apply the granted privileges to the MySQL session:

   FLUSH PRIVILEGES;

4. Test Connection: Exit the MySQL prompt and try connecting to the database from your application again.

Additional Considerations:

• Ensure that your application's code uses the correct username and password to connect to the MySQL database.
• Verify that the firewall allows access to the MySQL server from the application server.
• If you are still facing issues, check the MySQL error logs for additional information on the failure reason.

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