MariaDB/MySQL database server only runs on the IP 127.0. 0.1 or the hostname localhost by default. So, it is not accessible from other computers on your local network or the internet.
What is MySQL in IP?
127.0.0.1 is the IP address of local machine on which Mysql server is hosted.
How do I know MySQL server?
To check the version your MySQL is running, type and execute mysql -V (note the uppercase V) in the command line. As you can see, the MySQL version for this system is 10.4.