The port should be open but do to sme security you cannot see it
install phpmyadmin and you will be able to administer mysql from your local network
you will find most of these basic answers by searching this forum
look for the contrib I would put the link here but it will be good practice using search
when installed just open your browser on a different computer
and type in
https://sme's-ip #/phpmyadmin
use your admin login & password