---
name: "arno-fwfilter"
section: "1"
platform: "linux"
package: "arno-iptables-firewall"
version: "2.1.2a-3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/arno-fwfilter"
---

# arno-fwfilter(1)

a filter script to make iptables firewall logs more readable for humans

## NAME

arno-fwfilter - a filter script to make iptables firewall logs more readable for humans

## SYNOPSIS

**arno-fwfilter** \[*OPTIONS*\]

## DESCRIPTION

**arno-fwfilter** is a pipe filter script to make the firewall-log better readable. Some usage examples are:

- Static firewall log filtering:

  arno-fwfilter \< logfile

- Realtime firewall logging on tty10:

  tail --follow \<logfile\> \| arno-fwfilter \>/dev/tty10 &

## OPTIONS

- **--help**, **-h**

  Print the available options.

- **--no-resolve**, **-r**

  Disable resolving of IPs to names.

- **--html-output**, **-o**

  Use basic HTML to format the output.

- **--no-locations**, **-l**

  Disable to (try to) obtain the IP's geographical location. By default, http://www.hostip.info/ is visited to get this information.

- **--no-colors**, **-c**

  Disable the use of colors in the output.

- **--single-line**, **-s**

  Put all information about an event in a single line

## SEE ALSO

[**iptables**(8)](/iptables/8.md)**,** [**arno-iptables-firewall**(8)](/arno-iptables-firewall/8.md)

The *https://github.com/arno-iptables-firewall/aif* web site.

## AUTHOR

**arno-fwfilter** was written by Arno van Amersfoort \<arnova@rocky.eld.leidenuniv.nl\>.

This manual page was written by Michael Hanke \<michael.hanke@gmail.com\>, for the Debian project (but may be used by others).