Hi,
Imagine that I want to create a filter, that blocks/allow every packet that contains the word, for example, "GOOGLE" in it. I don't want to block a packet deriving from some IP, or something like that, I want to filter the content. For example, be able to parse a XML file in a packet, or parse some protocol, something like that.
look for "string" in the manpage to iptables. iptables ... -m string --string "GOOGLE" --algo bm ... should be the right pointer for you. regards Werner Maier -- Werner Maier, Dipl.-Ing. Univ. Friedrich-Bergius-Ring 15 fidion GmbH 97076 Würzburg
