Feb 16 2009
Nir Zuk, founder and CTO of Palo Alto Networks, responded via video to the conversation Richard Stiennon, Mike Murray, Amrit Williams and I had about firewalls for Demos on Demand. He’s got a good point, that without added intellegence, once you open one port on the firewall, it’s functionally the same as a network cable. Many applications are capable of proxying through ports 80 and 443 without any modification, so much of the filtering capabilities of an old-school firewall are rendered moot. Not that many of firewalls are just firewalls any more, but that may be part of his point.