Legacy Firewalls Get Failing Grade in Web 2.0
Legacy firewalls that rely on port and protocols are not effective in the Web 2.0 landscape.
According to this ZDNet report, Web 2.0 applications are rendering first-generation enterprise firewalls useless because users can easily bypass these legacy technologies. Expert advice offered in the story recommends that firewalls should identify data, not at port or protocol level, but at the application level.
"One of the ways applications can bypass firewalls is by using HTTP (Hypertext Transfer Protocol) or HTTPS (Hypertext Transfer Protocol Secure) as launch points, he said.
"Therefore, firewalls should identify data not at port or protocol level but at the application level, Mao said, adding that Palo Alto Networks' 'next-generation firewalls' features three core identification technologies catered to today's applications landscape."