jdbc:mysql://localhost:3306/test/useSSL=false&allowPublicKeyRetrieval=true
com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure
show variables like 'port';
!includedir /etc/mysql/conf.d/
!includedir /etc/mysql/mysql.conf.d/
[mysqld]
port=3306
bind-address=127.0.0.1
mysqlx-bind-address=127.0.0.1
skip-networking
skip-grant-tables