The MySQL password is not set by default (blank), and can only be set when the MySQL daemon is running (upon first boot). To set the password, execute the following command as 'root':
If you are certain you have no need for MySQL, either for websites or for your Minecraft server mods, you may remove it from the services list.
# vi /etc/rc.conf
PhpMyAdmin is available as an addon. To install, ensure you have first secured MySQL. Then, as root:
# cd /usr/games/minecraft/addons # wget http://minecraft.codeemo.com/crux/mineos-scripts/addons/phpmyadmin.sh # chmod +x phpmyadmin.sh # ./phpmyadmin.sh