Linux

Free firewalls : programs for Linux ...

Firestarter is an Open Source visual firewall program. The software aims to combine ease of use with powerful features, therefore serving both Linux desktop users and system administrators.
Producer / download / (1,2 MB) / Open Source - Donationware


Multi-platform firewall configuration and management tool. Firewall Builder uses object-oriented approach, it helps administrator maintain a database of network objects and allows policy editing using simple drag-and-drop operations. Firewall Builder currently supports iptables, ipfilter, OpenBSD PF and Cisco PIX.
Producer / Download from: link / Open Source


Alfandega is a strong and Modular IpTables Firewall. It provides NAT, port-forwarding, spoofing list, blacklist of crackers and spywares sites, protection for tcp/udp scans, DOS/DDOS and Smurf attacks, TCP tuning, DHCP and PPP support and much more.
Producer / download / (70 KB) / Open Source


A firewall for a single computer. Default setup works for any workstation allows all client programs (web browse, send email etc.) but denies access to your computer from the internet. For a server, sample configuration is available for most common daemons. It uses iptables syntax.
Producer / download / (2 KB) / GPL


Vuurmuur is a middle-end and front-end for netfilter and iptables that is aimed at system administrators who need a decent firewall, but don't have netfilter specific knowledge. It converts human-readable rules into an iptables ruleset (or optional a bash script), makes netfilter logs readable, includes an ncurses GUI.
Producer / download / (1,7 MB) / GPL

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