NAME

       cutter - cut tcp/ip connections

SYNOPSIS

       cutter ipaddress1 [ port1 [ ipaddress2 [ port2  ]  ]  ]

DESCRIPTION

       Cutter  is  an  open source program that allows Linux firewall administrators to abort TCP/IP connections
       routed over the firewall or router on which it is run.

WARNING

       Cutter has been designed for use as a administrators tool for  Linux  firewalls.  It's  use  (as  is,  or
       modified)  for  any  other  purpose  is  not  sanctioned  by  the  author. So - do not use this tool as a
       parachute, or to dry your cat, chill meat, answer your phone, drive you car, teach your kids to  read  or
       attack other people's computer systems or networks.

       This  software has been designed for legal and appropriate use by network security administrators and the
       like. It has been written as part of a larger Linux firewall project, targetting at  controlling  traffic
       from  peer-to-peer  software such as Kazaa, iMesh and others into and out of a private network. It is not
       designed as a tool for malicious use and the author in no way sanctions such use.

       Users of the software should be aware that it's actions are easily detectable using a number  of  readily
       available  network  monitoring  tools, and it makes no attempt to disguise it's actions. Malicious use of
       "cutter" could result in a jail sentance in a number of countries around the world.

       The author is not responsible for the results of using this software. It is provided "as is" in the  hope
       that it will be useful, but no garantees are made about it's use.

USAGE

       Cutter can be called using one of the following four syntaxes.

       cutter ip-address

       Example:
              cutter 10.10.0.45

              Cuts  all  connections  passing through the firewall between any ports on the specified ip-address
              (either a "private" or "public" address) and any other hosts. This can be used to close  down  all
              incoming  connections to a particular server, all outgoing connections from a particular client or
              all outgoing connections to a server.

       cutter ip-address port

       Example:
              cutter 200.1.2.3 80

              Cuts all connections to or from the specified ip-address/port pair. This allows the user to  be  a
              little  more  specific  than  the  previous  example and allows targetting of specific services on
              specific hosts.

       cutter ip-address-1 port-1 ip-address-2

       Example:
              cutter 200.1.2.3 22 10.10.0.45

              Cuts all connections between ip-address-2 and ip-address-1/port-1. This allows  the  user  to  cut
              connections between a specified "client" and a particular service on a specified host. Our example
              closes host 10.10.0.45's SSH connection to server 200.1.2.3.

       cutter ip-address-1 port-1 ip-address-2 port-2

       Example:
              cutter 200.1.2.3 22 10.10.0.45 32451

              Cuts the specific connection between the two ip/port number pairs given.

STATUS

       Cutter  1.03 should be considered EXPERIMENTAL.  The author is releasing a tool that works on the systems
       he has access to (namely: IPCop and RedHat Linux), and he is seeking input on it's use on other  systems,
       ideas for improvement, offers of sponsorship - etc.

ADDITIONAL DOCUMENTATION

       This program is documented at http://www.lowth.com/cutter/

AUTHOR

       Blars  Blarson  addapted  the  README  and  web page written by Chris Lowth into this man page for debian
       package of cutter.  This man page may be distribuated under the terms of the Gnu GPL version 2.

                                                   April, 2005                                         CUTTER(8)