FireHOL - ArchWiki

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FireHOL is a language (and a program to run it) to build secure, stateful firewalls from easy to understand, human-readable configuration files. The configuration stays readable even for very complex setups. In the background it interfaces with iptables (IPv4/IPv6).

## Installation

Install fireholAUR or firehol-gitAUR.

## Configuration

### Initial Auto Configuration

Firehol comes with its own firewall wizard. All traffic is allowed by default. Using the wizard is the first step to get a basic firewall configuration which automatically detects all open port and interfaces running on the system.

    # firehol wizard > /tmp/firehol.conf

The configuration is well documented. You find it at `/tmp/firehol.conf`. After finishing editing move it to `/etc/firehol/firehol.conf`. Then test run it with the command

    # firehol try

You have 30 seconds trying and if you can make it permanent by starting and enabling `firehol.service`

This article or section needs expansion.

Reason: stub (Discuss in Talk:FireHOL)

The configuration file is `/etc/firehol/firehol.conf`.

A good way to start learning its scripting declarations is by copying an Firehol example configuration.

The configuration file is bash file and has 3 parts:

- helper
- interface
- router

## Try, Run and Enable

You can test the configuration file's correctness by issuing:

    # firehol try

or

    # firehol nofast try

If the configuration is working, start/enable the `firehol.service`.

Tip:

- The package also includes FireQOS, a helper for Advanced traffic control. It is packaged with its own `fireqos.service`.
- The netdata (or netdata-gitAUR) application for traffic monitoring, created by the same project authors, also is available. See Netdata for more information.

Category:

- Firewalls

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