Authentication plugin 'caching_sha2_password' cannot be loaded

Question

I am connecting MySQL - 8.0 with MySQL Workbench and getting the below error:

Authentication plugin \'caching_sha2_password\' cannot be loaded: dlop

Answer 1

I found that

ALTER USER 'username'@'ip_address' IDENTIFIED WITH mysql_native_password BY 'password';

didn't work by itself. I also needed to set

[mysqld]
    default_authentication_plugin=mysql_native_password

in /etc/mysql/mysql.conf.d/mysqld.cnf on Ubuntu 18.04 running PHP 7.0