Connecting to MySQL database

hi all -

I’ve just lanched my first app

I have a huge list of IP addresses (thousands) that I would like to
add to my MySQL production database

I naiively thought it would be as simple as connecting to the database
from my computer using Sequel Pro and then uploading the information
from there.

I’m having difficulty connecting to the database though. Is this a
firewall issue with my host or am I missing something else?

Thanks