When compare Netscreen Firewall vs. Cisco Firewall PIX 535, The Netscreen Company said that:"While the PIX 535 does support gigabit firewall performance, this does not hold up under normal traffic activity. With just a few thousand sessions active o...

Does PIX firewall run tranperant mode with user by default. I mean that does PIX firewall open all the Internet port ? and can we deny by the domain name?

Does it run base on server infrastructure