Open Source Unix Shell Firewall Software

Smoothwall is a best-of-breed Internet firewall/router, designed to run on commodity hardware and to provide an easy-to-use administration interface to those using it. Built using open source and Free software, it's distributed under the GNU Public License.

This project will serve as a central hosting/bug tracking center for modifications to the SmoothWall.org firewall distribution. Support and information for the "mods" posted here can be found on the SmoothWall.org forums, the SmoothWall.org IRC server, or

Bypass is an IP forwarding/tunneling tool which can be used where limited bypassing of a firewall is necessary, but relaxing the restrictions in the actual firewall is not an option. The aim is for bypass to be automatic and transparent.

Bootable CD Forensics/Virus Scanning/Recovery/PenTesting platform

OpenVoucher is an open source voucher management / hotspot system for authenticating guests in your wifi or cable network. It is designed to be easy to use for anyone who wants to issue vouchers. For further information and installation how to's, see the project's homepage. The source code is maintained on Github.

Debian packages for PeerGuardian Linux (including the GUI) and its precessor moblock/blockcontrol/mobloquer. PeerGuardian is a privacy oriented firewall application. It blocks connections to and from hosts specified in huge blocklists (thousands or millions of IP ranges). Its origins lie in targeting aggressive IPs while you use P2P. See http://sourceforge.net/projects/peerguardian/

BadTuxWall will help you to implement your own firewall on a Linux operating system using an efficient graphical user interface. It also allows you to generate iptables scripts, export them and share them with friends.

Bait and Switch combines IDS tech (Snort primarily) and Honeypots into a new, more valuable, reactive system. After receiving an alert, B&S protects your server by silently redirecting hostile traffic to a honeypot while leaving other traffic alone.

BastionX is a suite of bash scripts which provide a firewall system using netfilter on linux. Some of the supported features are flow control & QoS, local & WAN ip blacklists, dynamic trusted hosts, DMZ feature, auto detection of interfaces.

FireGate is an IPtables script for use as a firewall and NAT/masquerade for home networks or SOHO applications.

Easiest way to turn a Linux System into a Nat router with a web interface for firewall configuration and monitoring. For beginers, offers a simple and secure solution. For advanced users, a customizable and friendly way of remote administration.

Firedoor is firewall , qos , masquerading and nat script that uses bash, iptables and iproute2. It's designed to be in firewall/router box but can also protect a single workstation.

Linux Firewall Defender - Script feito em Unix Shell Script que controla as tabelas do firewall Iptables/Netfilter.

Frankenwall is a bash shell script intended to create a highly secure IPTables based linux firewall/router with QOS/traffic shaping/bandwidth management. Be certain you know EXACTLY what your network needs before using Frankenwall. Wimps need not apply.

GTCop Professional Security Appliance aims to provide a powerful tool for satellite communications, with enhanced QoS and bandwidth controls. As derived from IPCop Firewall, it is a stable, secure, easy to configure and maintain GNU/Linux firewall box.

A very simple Linux firewall scripts designed for home users/small office users. Requires Linux kernel 2.4.x, ipcalc and iptables to run. These scripts have been tested on Trustix 1.2, 1.5 and 2.0 (Beta), Redhat 7.2, and 7.3 only.

Smoothwall Mod for Dansguardian User group editing. Creates five initial groups; everybody, child, preteen, teen and adult. Intended to automated the editing of filtergroupslist and exceptionuserlist via the web interface of Smoothwall. Inserts as a new

FBSD-DEV: INSTALL6 is a post installation script that automates several key points and procedures involved in updating and securing FreeBSD. Updating the source and ports, securing system, and the configuration of pf firewall.

etherdam is an IPTables firewall configuration engine; it implements a primitive (and hopefully simple) scripting language as an alternative to direct use of iptables.

This project has been modified amd now is ISP Manager . This is working on linux , and make the life of isp administrator easy like never cod be .

iptables based firewall for Linux

LFR is a Linux/Netfilter based firewall/router on a single floppy disk. Think of it as a micro Linux distribution with a purpose. With LFR you can take that old 486 with 4 MB of RAM that you have in the closet and put it to good use. With a pair of ch

An easy, yet highly-configurable iptables-based firewall solution designed for everybody from home users to network admins. Functionality for IPv6, tunneling, IPSec, and advanced routing is planned.

A Firewallscript for Linux which allows you to do easy loadbalancing, dualrouting, failover, traffic control, etc. The script allows you to set up things in a few settings files and just run (after some kernel patching ;) ).

LrFW Is a Linux RAM Baised Firewall. A fully featured firewall and router with no moving parts to break. In the future I may also write an optional Cisco PIX translator and interface.