You could try telneting to port 139 from an outside machine. If you get anything other than an access denied, you likely have an open port.

I'd like to be able to Remote Desktop into my school machine from off campus. What would be the best way to see if any ports are not blocked by my school?<BR><BR>I was thinking I could scan my IP (we ...

Port forwarding is a crucial networking technique that allows you to make a computer or device on your local network accessible to the internet, bypassing the security features of your router. This is ...