I have installed Remote SQL for CyberPanel according to the instructions at: https://cyberpanel.net/docs/remote-sql-for-cyberpanel/
but after I tested it connected to the root user sql, the message came out:
[root @ office ~] # mysql -u root -h xxx.xxx.xxx.xxx -p
ERROR 2003 (HY000): Can't connect to MySQL server on 'xxx.xxx.xxx.xxx' (111 "Connection refused")
can help me?