FW: a filter for tcp socket
Did you hear about netfilter/iptables/ipchains etc?
This is a firewall task, isn't it?
And there are tons of documentation - visit "netfilter.samba.org".
Or google :).
From: Samu [mailto:email@example.com]
Sent: Monday, September 03, 2001 9:04 PM
Subject: a filter for tcp socket
this is a work i would like to study but i fall in problem when looking for
Linux Socket Filtering Documentation.
I want to make a filter that can alterate data on tcp packets following
some rules ( e.g. faking icq messages to give you an idea ) and must block
the original packet (or rewrite it ... aniway it's IMPORTANT the original
packet can't arrive to destination) .
this filter has to run on a machine in which traffic pass through
( e.g. a linux gw on a LAN ) .
the only way i find to do that ( attach a program that filter sockets)
is through Linux Socket Filtering but it seem not to be any docs about that.
is there someone who has links to docs, examples or can suggest me another
to do that ?
Samuele Tonon <firstname.lastname@example.org>
Undergraduate Student of Computer Science at University of Bologna, Italy
System administrator at Computer Science Lab's, University of Bologna, Italy
Founder & Member of A.A.H.T.
Acid -- better living through chemistry.
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