Firewall Tester 0.3 (Development)

From: aleph1at_private
Date: Mon Oct 22 2001 - 17:59:42 PDT

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    Firewall Tester 0.3 (Development)
      by Andrea Barisani (
      Friday, October 19th 2001 09:38
    Categories: Security, System :: Networking :: Firewalls
    About: The Firewall Tester consists of two simple Perl scripts: the client
    part ( and the listening "daemon" ( The client injects
    custom packets, defined in ftest.conf, with a signature in the data part
    while the daemon listens for such marked packets. The scripts both write
    similarly formatted log files of their activities. If the two scripts are
    run on hosts on opposite sides of a firewall, then a diff of the two
    produced files shows the packets that were unable to reach the daemon due
    to filtering rules. This is not an automated process, and ftest.conf must
    be crafted for every different situation. Examples and rules are included
    in the included ftest.conf. 
    Changes: The ability to spoof real connections was added for handling
    stateful inspection firewalls. 
    License: GNU General Public License (GPL)
    Elias Levy
    Si vis pacem, para bellum

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