I'm new to networking and have a question regarding the most secure method to insure file security on a home network.
I have a roommate with a single XP Home machine connected to my D-Link DI-604 router. Also connected to the same network are my two XP Pro machines configured with simple file sharing and accessing a couple of printers. All computers require Internet access. I'm using unique user names, passwords, and workgroup identifier for my machines/network.
What is the best method to insure that he has no access to any of my computers or printers? Currently, his computer isn't visible under the Microsoft Windows Network; however, it shows up on the DHCP Client listing on the router's configuration screen.
Should I just rely on current password authentication or can I also exclude his computer using the router or perhaps another more secure means to prevent access to my network?
Thanks for the advise!