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       pyroman - a firewall configuration utility


              [ -hvnspP ] [ -r RULESDIR ] [ -t SECONDS ]
              [ --help ] [ --version ] [ --safe ] [ --no-act ]
              [ --print ] [ --print-verbose ] [ --rules=RULESDIR ]
              [ --timeout=SECONDS ] [ safe ]


       pyroman is a firewall configuration utility.

       It will compile a set of configuration files to iptables statements to
       setup IP packet filtering for you.

       While it is not necessary for operating and using Pyroman, you should
       have understood how IP, TCP, UDP, ICMP and the other commonly used
       Internet protocols work and interact. You should also have understood
       the basics of iptables in order to make use of the full functionality.

       pyroman does not try to hide all the iptables complexity from you, but
       tries to provide you with a convenient way of managing a complex
       networks firewall.  For this it offers a compact syntax to add new
       firewall rules, while still exposing access to add arbitrary iptables


       -r RULESDIR,--rules=RULES
              Load the rules from directory RULESDIR instead of the default
              directory (usually /etc/pyroman )
       -t SECONDS,--timeout=SECONDS
              Wait SECONDS seconds after applying the changes for the user to
              type OK to confirm he can still access the firewall. This
              implies --safe but allows you to use a different timeout.
       -h, --help
              Print a summary of the command line options and exit.
       -V, --version
              Print the version number of pyroman and exit.
       -s, --safe, safe
              When the firewall was committed, wait 30 seconds for the user to
              type OK to confirm, that he can still access the firewall (i.e.
              the network connection wasn’t blocked by the firewall).
              Otherwise, the firewall changes will be undone, and the firewall
              will be restored to the previous state.  Use the
              --timeout=SECONDS option to change the timeout.
       -n, --no-act
              Don’t actually run iptables. This can be used to check if
              pyroman accepts the configuration files.
       -p, --print
              Instead of running iptables, output the generated rules.
       -P, --print-verbose
              Instead of running iptables, output the generated rules. Each
              statement will have one comment line explaining how this rules
              was generated. This will usually include the filename and line
              number, and is useful for debugging.


       Configuration of pyroman consists of a number of files in the directory
       /etc/pyroman.  These files are in python syntax, although you do not
       need to be a python programmer to use these rules. There is only a
       small number of statements you need to know:
              Define a new host or network
              Define a new interface (group)
              Add a new service alias (note that you can always use e.g.
              www/tcp to reference the www tcp service as defined in
              Define a new NAT (Network Address Translation) rule
       allow  Allow a service, client, server combination
       reject Reject access for this service, client, server combination
       drop   Drop packets for this service, client, server combination
              Add a rule for this service, client, server and target
              Add an arbitrary iptables statement to be executed at beginning
              Add an arbitrary iptables statement to be executed at the end
       Detailed parameters for these functions can be looked up by caling
              cd /usr/share/pyroman
              pydoc ./


       None known as of pyroman-0.4 release


       pyroman was written by Erich Schubert <>


       iptables(8), iptables-restore(8) iptables-load(8)