!Hubzilla Support Forum
I found that #Hubzilla
(and seems a lot of other #PHP
software) have issue with #MySQL
8. In my case this is a latest release 8.0.12.
MySQL changed Preferred Authentication Plugin on new
type. It causes authentication errors like
mysqli_real_connect(): The server requested authentication method unknown to the client [caching_sha2_password]
mysqli_real_connect(): (HY000/2054): The server requested authentication method unknown to the client
To avoid this replace authentication scheme for users on
ALTER USER 'user@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';
Until software will not be updated to work with the new password schema will be a good idea to leave the old driver on by
adding default_authentication_plugin = mysql_native_password
section of MySQL configuration file.