[Netfilter] Question

[Krish Ahya]

Hi all,   I was just wondering, is Netfilter as good as Cisco's PIX and Checkpoint's Firewall-1, if not better?   Also I'm wondering say if I have a dmz and allow people to come into a server on port 80, will netfilter inspect the packet on all 7 layers of the OSI model and make sure that it is actually a http packet and following the rules and protocol specifications of http? Sorta like checkpoints INSPECT module.   Thanks.   - Krish ~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~ I have not failed 10,000 times, I have sucessfully found 10,000 ways that won't work." -- Thomas A. Edison