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Discussion in 'Linux and Unix' started by j4c, Jan 15, 2013.

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  1. j4c

    j4c Thread Starter

    Jan 15, 2013

    Is it possible to compare incoming packets against a text document, if the text document and the packets match (specifically TCP/IP packet) then the packet will be allowed through otherwise the packet will be dropped and a log file would be made?

    My current test environment consists of the following:

    Ubuntu 12.04 with netkit machines, manipulating tcp / ip packets (creating a covert channel) using scapy, , I will be using tcp dump to capture the packets and later view then on wireshark.

    I have been looking into the mangle table and the u32 module but unsure if packet authentication can be possible using iptables? using this setup.

    Any suggestions would be appreciated.

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