"Cannot log in to the MySQL server" without code using phpMyAdmin on CentOS7

I’ve set up a new CentOS 7 server with Apache, MySQL and phpMyAdmin using Digital Ocean’s guides. However, when I try to log in to phpMyAdmin via the browser, I get the message “Cannot log in to the MySQL server” without any error code.

For testing purposes I’ve set the IP addresses in phpMyAdmin.conf to Require all granted.

I have two accounts in MySQL, namely the root user and a user ‘niels’, which I gave all permissions. Logging in to MySQL via the command line works fine for both accounts. Only the phpMyAdmin web version is doing something unexpected.

Thank you!

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Accepted Answer

Assuming MySQL 8.

  ALTER USER root IDENTIFIED WITH mysql_native_password BY 'PASSWORD';

Reason: Some applications are having trouble with caching _sha2 _password method. Above sets the credentials to use the native one.

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