My organisation has a number of Windows 2003 domains which are all connected to the internet but not physically connected to each other. I have tried to set up remote desktop connection with one of the workstations (running XP Pro) within the domain and it works within the domain. But when I try to remotely connect to it from outside the domain, it does not work. It does not even see the domain from outside or from another domain. Is there anything else I should do?