MySQL Access Denied: Why Can't My Non-Root User Connect?
Jan 03, 2025 am 01:35 AMMySQL: Access Denied for Non-Root User
Problem:
When attempting to log in to MySQL as a non-root user, the error "Access denied for user 'test'@'localhost' (using password: YES)" is encountered, despite having created the user and granted privileges.
Steps Taken to Create User and Privileges:
- Installed MySQL on RHEL 5.7 64bit
- Created MySQL database using mysql_install_db
- Started MySQL service
- Performed mysql_upgrade
Issue with Non-Root User Access:
The issue arises when attempting to log in as a non-root user.
Solution:
To resolve the access denied error, avoid granting all privileges over all databases to a non-root user. This practice is not secure and compromises system integrity. Instead, grant only the necessary privileges to the user.
Grant Command:
The following command can be used to grant specific privileges to a user:
GRANT <privileges> ON database.* TO 'user'@'localhost' IDENTIFIED BY 'password';
For example, the following command grants insert, select, delete, and update privileges on the database "test":
GRANT INSERT, SELECT, DELETE, UPDATE ON test.* TO 'user'@'localhost' IDENTIFIED BY 'password';
Additional Information:
For a detailed list of all privileges, refer to the MySQL documentation. To view information related to user hosts, execute the following query (logged in as "root"):
select Host, User from mysql.user;
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