aaajjj

it is possible to access a database from a server without accessing any page on that server?

for example let's say that i have 2 dedicated servers; on server1 i have database1; if i know the users and passswords for databasename1 it is posible make that: when a visitor visit the page site2.com hosted on server2 to introduce some info (for example the ip of the visitor) in the database1 from server1?

hope i make me understand