How does a VM connect to a MySQL database?

MySQL database management:

Download the phpMyAdmin software, decompress the package, and find a file: config. inc. PHP (or config. *. The file name varies with phpMyAdmin versions.) modify the following Configuration:


Then you FTP to your website, create a directory phpMyAdmin under wwwroot, upload all phpMyAdmin files to this directory and access www.at0731.com/phpmyadmin to manage your database. after you have created your database, remember to remove the phpadmin files. Otherwise, anyone can manage your database. if you use Perl for programming, you can use the followingCodeConnect to the database:

The VM directory contains three subdirectories. What are their respective roles?
 
Three subdirectories, wwwroot, logfile, and database, are set under the user's virtual host. Wwwroot-stores the user site page, that is, you should upload files to this directory; logfile-stores site access logs; database-stores database files.
 
How can I remotely manage a rented server?