Accessing the server through linux

I would like with my Java application (netbeans) to access the database that is on the server, but this was complicated because it is through a Linux machine.

Could someone explain to me how to do this?

The connection class I use is:

public Connection LigaBD() {
    try{
        System.out.println("Entrei !!!");
        Class.forName("org.sqlite.JDBC");
        conn = DriverManager.getConnection("jdbc:sqlite:pesquisa.db");
        System.out.println("Passei a segunda fase !!!");
    }
    catch(Exception e){
        e.printStackTrace();
    }
    System.out.println("Nao consegui entrar na BD");
    return null;
}

Accessing locally I can, the worst is mapping in Linux, I'm new to Linux.