A flaw in Windows Firewall may prevent users from seeing all the open network ports on a Windows XP or Windows Server 2003 computer. The flaw manifests itself in the way the security application ...

Fred Stluka from Bristle.com just introduced me to port knocking — a method of opening ports on a firewall by trying to connect with a series of ports in a pre-determined order. The sequence of ...

I have a little problem that I'd like some help with. I'm behind a firewall, but I'd like to host a game server that uses port 53. I have the option of opening certain ports from the fw but sadly, 53 ...

We’re frequently asked what firewall ports need to be opened and what protocols are communicated between servers in a System Center Operations Manager envrionment. This gets a little more detailed ...

well I run an ISA server behind my hardware firewall and I have clients on a separate network that have to go thought the firewall and back when the request incoming or outgoing web access.<BR><BR>But ...

Jeff is tasked with separating the “gee whiz” factor from the truly useful when it comes to the latest tech gadgets, and oh, he holds a Ph.D. in physics. He currently works as the supervisor of ...

Networked devices behind a firewall are at risk to attack because of poor authentication in the UPnP protocol in most home routers. Security vulnerabilities in UPnP continue to crop up and continue to ...

Forbes contributors publish independent expert analyses and insights. Technology journalist specializing in audio, computing and Apple Macs. This article is more than 3 years old. Despite its powerful ...