arno-iptables-firewall(8) Single- & multi-homed firewall script with DSL/ADSL support.


/etc/init.d/arno-iptables-firewall [start|stop|status|force-reload|restart]


arno-iptables-firewall is an iptables configuration script with support for both IPv4 & IPv6. While it is extremely easy to use one can nevertheless use it in quite complicated environments.

All available options are explained in the extensively documented configuration file.

The external interface of the system needs to be set up properly in the firewalls configuration file (EXT_IF). The default behavior of the firewall is to deny all incoming connections.

For additional requirements not covered by the configuration file custom iptables rules can be placed in /etc/arno-iptables-firewall/custom-rules. This file is automatically parsed by the service script.

See the README file (eg. in /usr/(local/)share/doc/arno-iptables-firewall) for an example how to manage logging of firewall events through syslogd.

The arno-fwfilter script can be used to make the firewall logs more readable for humans (see manpage).

Several plugins for the firewall script are available online. Plugins can be downloaded from Please see the README file for more information.


/etc/init.d/arno-iptables-firewall              system service script
/etc/arno-iptables-firewall/firewall.conf       firewall configuration
/etc/arno-iptables-firewall/conf.d/             firewall configuration directory
/etc/arno-iptables-firewall/custom-rules        custom iptables rules
/etc/arno-iptables-firewall/blocked-hosts       host blacklist
/etc/arno-iptables-firewall/mac-addresses       mac filter list

Please note, that the last two files do exist in the initial configuration and their use is disabled in /etc/arno-iptables-firewall/firewall.conf


arno-iptables-firewall was written by Arno van Amersfoort <[email protected]> and Lonnie Abelbeck <[email protected]>.

This manual page was written by Michael Hanke <[email protected]>, for the Debian project (but may be used by others).