Freedom251 › Firewall Software
Arno's IPTABLES Firewall

Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Arno's IPTABLES Firewall | GPLv2 software · no warranty stated | Free |
As github.com lists them, read 8 Oct 2026. The maker's own page has the final word.
Facts from Arno's IPTABLES Firewall's own pages
- Application rules
- No · github.com, 23 Sept 2026
- Central management
- No · github.com, 23 Sept 2026
- Dependencies
- The README lists iptables, iproute, and a POSIX-compliant /bin/sh among the requirements. · github.com, 8 Oct 2026
- Free plan
- Yes · github.com, 23 Sept 2026
- Installation
- The project includes an install script and describes deployment on a Linux system. · github.com, 8 Oct 2026
- IPv6
- It supports mixed IPv4 and IPv6 operation, enabled with IPV6_SUPPORT=1 in the configuration. · github.com, 8 Oct 2026
- License and warranty
- The project identifies itself as GPL version 2 software and says it is provided without warranty. · github.com, 8 Oct 2026
- Logging
- The package includes arno-fwfilter, a pipe filter script for making firewall logs more readable. · github.com, 8 Oct 2026
- Multi-routing
- It supports multi-routing or load balancing, optionally with NAT, and the README says this requires static external IP addresses. · github.com, 8 Oct 2026
- NAT
- It supports NAT masquerading and configurable TCP port forwarding. · github.com, 8 Oct 2026
- Outbound control
- advanced · github.com, 23 Sept 2026
- Supported platforms
- Linux · github.com, 23 Sept 2026
- Plugins
- The firewall supports plugins for added functionality, and plugin configuration is disabled by default until ENABLED=1 is set. · github.com, 8 Oct 2026
- Purpose
- AIF is a single- and multi-homed firewall script with DSL/ADSL support. · github.com, 8 Oct 2026
- Rule direction
- both · github.com, 23 Sept 2026
- Security defaults
- The README says various security features are enabled by default to protect against hostile attacks. · github.com, 8 Oct 2026
- Security guidance
- The author warns that changing expert security settings without understanding them can significantly affect machine security. · github.com, 8 Oct 2026
- 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. · github.com, 8 Oct 2026
- Traffic filtering
- The firewall blocks all incoming traffic by default, and users configure allowed ports in its settings. · github.com, 8 Oct 2026
Where Arno's IPTABLES Firewall stands on Freedom251
- Firewall Software#45 of 81