I have had a BI web server set up for several years and opened up port 100 on my Airport Extreme router for this purpose. I suspect this open port has become a problem as I have suspisicions that some one is remotely accessing my computer. Are there a couple SIMPLE things that I can do to be better protected? I have at VPN installed but have never used it because I simple do not understand it. I also know that some use stunnel but, once again, its difficult for me to figure out.