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 ...

Have a quick question just so I hop off on the right foot. I'm fairly sure I know the answer, but I need confirmation. We run a Cisco PIX 515 Firewall, and also have a Cisco 1720 Internet router. Here ...

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?

To defend against data loss and theft, companies need as much protection as possible from external threats. Hardware and software firewalls prevent malicious traffic from reaching computers connected ...

Linux is highly secure, but you should still have a firewall. You should know if your ISP's hardware (gateway) uses a firewall. One of the easiest Linux firewalls is UFW and its GUI sidekick, GUFW.

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 ...