Robert Glover wrote:
> Some wretched soul might send a non-SYN packet at one your open TCP ports as
> part of some kind of port scan. The response from that port would tell them
> that something is there. If those ports were blocked by the stateful
> inspection firewall, then there would be no response.
I see. I don't have a lot of experience writing custom IP packets, so
what kind of response would a Linux kernel send to a packet without a
SYN flag that wasn't part of an established stream?
I really don't want to sound argumentative... just trying to learn more
about TCP. From what you've described, I can see the value of stateful
firewalls. Sounds like something that would be very useful to all of us
broadband users...
Thanks
MSG
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