MySQL Tutorial/Privilege/Remote User

Designate an IP or host address from which the user can connect

GRANT ALL PRIVILEGES
ON myDatabase.*
TO newuser@192.168.0.2
IDENTIFIED BY "newpassword";

Give a non-local user permissions on the database for use with remote clients.

GRANT ALL PRIVILEGES
ON myDatabase.*
TO newuser@192.168.0.2
IDENTIFIED BY "newpassword";
Now a user on the machine "192.168.0.2" can connect to the database.

To allow a user to connect from anywhere you would use a wildcard "%"

GRANT ALL PRIVILEGES
ON myDatabase.*
TO newuser@"%"
IDENTIFIED BY "newpassword";