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 ...

Okay, I already have this thread in an attempt to replace the current firewall that is on a network that, I guess, I'm in charge of, but I think I'm going to puch that back a little because I'm a ...

What Does a Firewall Do To Protect My Home Network Your email has been sent Understanding what firewalls do (and don't do) takes just a few minutes. Learn what a firewall does to keep intruders out in ...

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 ...

Why waste money on an enterprise firewall when you can build your own from old PC parts?

A port is a numeric identifier for software that runs on a computer, like Web server or email server software. When a port is open, it's accepting connections from the outside world. It's not uncommon ...

What Is a Host Based Firewall and Is it Secure Enough? Your email has been sent Most devices come with a host based firewall, but is it enough? Learn about this vital ...

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 ...