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iptables-apply(8)


NAME

   iptables-apply - a safer way to update iptables remotely

SYNOPSIS

   iptables-apply   [-hV]   [-t  timeout]  [-w  savefile]  {[rulesfile]|-c
   [runcmd]}

DESCRIPTION

   iptables-apply will  try  to  apply  a  new  rulesfile  (as  output  by
   iptables-save,  read by iptables-restore) or run a command to configure
   iptables and then prompt the user whether the changes are okay. If  the
   new  iptables  rules  cut the existing connection, the user will not be
   able to answer affirmatively. In this case, the script  rolls  back  to
   the previous working iptables rules after the timeout expires.

   Successfully  applied  rules  can also be written to savefile and later
   used to roll back to this state. This can be used to implement a  store
   last  good  configuration mechanism when experimenting with an iptables
   setup  script:  iptables-apply  -w  /etc/network/iptables.up.rules   -c
   /etc/network/iptables.up.run

   When    called    as    ip6tables-apply,    the    script    will   use
   ip6tables-save/-restore and IPv6 default values instead. Default  value
   for rulesfile is '/etc/network/iptables.up.rules'.

OPTIONS

   -t seconds, --timeout seconds
          Sets  the  timeout  in  seconds after which the script will roll
          back to the previous ruleset (default: 10).

   -w savefile, --write savefile
          Specify the savefile where successfully applied  rules  will  be
          written    to    (default    if    empty    string   is   given:
          /etc/network/iptables.up.rules).

   -c runcmd, --command runcmd
          Run command runcmd to configure iptables instead of  applying  a
          rulesfile (default: /etc/network/iptables.up.run).

   -h, --help
          Display usage information.

   -V, --version
          Display version information.

SEE ALSO

   iptables-restore(8), iptables-save(8), iptables(8).

LEGALESE

   Original   iptables-apply   -   Copyright   2006   Martin   F.   Krafft
   <madduck@madduck.net>.    Version   1.1    -    Copyright    2010    GW
   <gw.2010@tnode.com or http://gw.tnode.com/>.

   This  manual page was written by Martin F. Krafft <madduck@madduck.net>
   and extended by GW <gw.2010@tnode.com or http://gw.tnode.com/>.

   Permission is granted to copy, distribute and/or modify  this  document
   under the terms of the Artistic License 2.0.



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