Skip to content
SPECIFICTION
Get listed

Arno's IPTABLES Firewall

github.com

Free plan LinuxSelf-hosted
Visit github.com
Spec score 7.6 #58 of 80 in Firewall Software

Spec sheet

Purpose
AIF is a single- and multi-homed firewall script with DSL/ADSL support.Read 8 Oct 2026 · github.com
Supported platforms
LinuxRead 23 Sep 2026 · github.com
Free plan
YesRead 23 Sep 2026 · github.com
Support
The author says they do not provide end-user support by email and directs bug reports to GitHub and other questions to community sites or the FAQ.Read 8 Oct 2026 · github.com
Application rules
NoRead 23 Sep 2026 · github.com
Central management
NoRead 23 Sep 2026 · github.com
Dependencies
The README lists iptables, iproute, and a POSIX-compliant /bin/sh among the requirements.Read 8 Oct 2026 · github.com
Installation
The project includes an install script and describes deployment on a Linux system.Read 8 Oct 2026 · github.com
IPv6
It supports mixed IPv4 and IPv6 operation, enabled with IPV6_SUPPORT=1 in the configuration.Read 8 Oct 2026 · github.com
License and warranty
The project identifies itself as GPL version 2 software and says it is provided without warranty.Read 8 Oct 2026 · github.com
Logging
The package includes arno-fwfilter, a pipe filter script for making firewall logs more readable.Read 8 Oct 2026 · github.com
Multi-routing
It supports multi-routing or load balancing, optionally with NAT, and the README says this requires static external IP addresses.Read 8 Oct 2026 · github.com
NAT
It supports NAT masquerading and configurable TCP port forwarding.Read 8 Oct 2026 · github.com
Outbound control
advancedRead 23 Sep 2026 · github.com
Plugins
The firewall supports plugins for added functionality, and plugin configuration is disabled by default until ENABLED=1 is set.Read 8 Oct 2026 · github.com
Rule direction
bothRead 23 Sep 2026 · github.com
Security defaults
The README says various security features are enabled by default to protect against hostile attacks.Read 8 Oct 2026 · github.com
Security guidance
The author warns that changing expert security settings without understanding them can significantly affect machine security.Read 8 Oct 2026 · github.com
Traffic filtering
The firewall blocks all incoming traffic by default, and users configure allowed ports in its settings.Read 8 Oct 2026 · github.com

Plans and prices

Arno's IPTABLES Firewall Free GPLv2 software · no warranty stated Read 8 Oct 2026 · github.com

Every Arno's IPTABLES Firewall plan and price →

Where Specifiction places it

Alternatives to Arno's IPTABLES FirewallAll alternatives →