Michael J. Flickinger > IPTables-Mangle-0.03 > ipmangle

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NAME ^

ipmangle - Manage iptables rules with YAML files

SYNOPSIS ^

   usage: ipmangle --config=[file] [ test | commit | dump | out=[file] ]

   --config   | takes a YAML file
   --dump     | prints processed iptable rules to stdout
   --commit   | commits rules
   --test     | tests rules
   out=[file] | dumps iptables rules to file

CONFIGURATION FILE ^

The configuration file is a YAML data-structure interpreted by the IPTables::Mangle module.

EXAMPLE FILE ^

   filter:
       forward: { default: drop }
       foo:
           rules:
              - src: 9.9.9.9
              - src: 10.10.10.10
                action: drop
       input:
           # by default, do not allow any connections unless authorized
           # in the rules below
           default: drop

           # by default, if no "action" is given to a rule below, accept it
           default_rule_action: accept 

           rules:
               # Accept all traffic on loopback interface
               - in-interface: lo

               # Don't disconnect existing connections during a rule change.
               - { match: state, state: 'ESTABLISHED,RELATED' }

               # Allow for pings (no more than 10 a second)
               - { protocol: icmp, icmp-type: 8, match: limit, limit: 10/sec }

               # Allow these IPs, no matter what
               - src: 123.123.123.123

               # example of blocking an IP 
               - { action: drop, src: 8.8.8.8 }

               # example of allowing ip to connect to port 25 (smtp) (one-line)
               - { protocol: tcp, dport: 25, src: 4.2.2.2 }

               # jump to rules defined in "foo" above
               - action: foo

               # if there are no more rules, reject the connection with icmp, don't just let it hang
               - action: reject
                 action_options:
                     reject-with: icmp-admin-prohibited

COPYRIGHT ^

Copyright 2011, 2012 Ohio-Pennsylvania Software, LLC.

LICENSE ^

This library is free software. You can redistribute it and/or modify it under the same terms as Perl itself.

AUTHOR ^

Michael J. Flickinger, <mjflick@gnu.org>

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