[1] : Jargon File (4.3.1, 29 Jun 2001)

firewall machine n. a dedicated gateway machine with special security
   precautions on it, used to service outside network connections and
   dial-in lines. the idea is to protect a cluster of more loosely
   administered machines hidden behind it from crackers. the typical
   firewall is an inexpensive micro-based unix box kept clean of critical
   data, with a bunch of modems and public network ports on it but just one
   carefully watched connection back to the rest of the cluster. the
   special precautions may include threat monitoring, callback, and even a
   complete iron box keyable to particular incoming ids or activity
   patterns. syn. flytrap, venus flytrap. see also wild side.

   when first coined in the mid-1980s this term was pure jargon. now
   1999 it is techspeak, and has been retained only as an example of
   uptake --esr


see also:
cracker iron box flytrap venus flytrap wild side 

[2] : The Free On-line Dictionary of Computing (27 SEP 03)

firewall machine
     
         a dedicated gateway machine with special security
        precautions on it, used to service outside network, especially
        internet, connections and dial-in lines.  the idea is to
        protect a cluster of more loosely administered machines hidden
        behind it from crackers.  the typical firewall is an
        inexpensive microprocessor-based unix machine with no
        critical data, with modems and public network ports on it, but
        just one carefully watched connection back to the rest of the
        cluster.  the special precautions may include threat
        monitoring, call-back, and even a complete iron box
        keyable to particular incoming ids or activity patterns.
     
        firewalls often run proxy gateways.
     
        synonym flytrap, venus flytrap.
     
        1997-06-08
     
     
see also:
internet crackers microprocessor unix call-back iron box 
proxy gateways flytrap venus flytrap 

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