Installing and using a free firewall will not guarantee you complete
security, however your firewall is your first line of defence against malicious
attacks and is therefore recommended to all PC users.
Free COMODO Personal Firewall PC Magazine Online's Editor's Choice, Comodo personal firewall secures against internal and external attacks, blocks internet access to malicious
Trojan programs and safeguards your personal data against theft.
Offers free maintenance upgrades and no license fee.
Complete protection for networks & home users, the Comodo personal firewall is available in 14 languages
Free Filseclab Firewall Filseclab Personal Firewall Professional Edition is very easy to use and also very powerful. It can provide more secure protection for your PC, and it is FREE.
The Filseclab Personal Firewall blocks attacks from worm viruses, Trojans and most
of the main ad ware and spy ware.
Filseclab Personal Firewall's definition supports live updates & provides traffic graph, privacy protection, Windows Security Center, balloon message alert, etc.
Jetico Personal Firewall Jetico Personal Firewall software provides you with security against hackers who try to access your PC when you are connected to the Internet. Having inherited the
open architecture principles from BestCrypt, Jetico Personal Firewall allows you to construct a strong yet accurate security policy and provides clear control over your network connections. The Jetico Personal Firewall is for Windows and Linux/UNIX operating systems.
Free Zone Alarm Firewall The Zone Alarm firewall is one of the easiest to use.
Before you download the firewall, Zone Alarm will give you the option to allow a scan of your PC which will instantly find spyware, keyloggers, cookies, ad ware, browser help objects and other pests, at absolutely no cost to you.
The second of the links allows you to download the Zone Alarm firewall program to your PC.
Free Linux Firewall
Free Guarddog Firewall for Linux Guarddog is a firewall configuration utility for Linux systems aimed at novice to intermediate users.
Guarddog lets you maintain and modify the firewall in place and uses a "what is not explicitly allowed, is denied" philosophy.
Well documented with tutorials and reference material. Guarddog Firewall for Linux is Free & will remain Free !
Free FireStarter Firewall for Linux With Firestarter you will have a firewall up and running in minutes. Then it is up to you how deep you choose to go. User friendly, easy to use, graphical interface,
a wizard walks you through setting up your firewall.
Advanced Linux kernel tuning features provide protection from flooding, broadcasting and spoofing. Firestarter supports Linux Kernels 2.4 and 2.6. Translations available for over 30 languages
Free Network Firewall
Omniquad Personal Firewall, Free Network Firewall Networked PCs are vulnerable even if no one targets you in particular. An extra layer of security between your PC and the world is what Omniquad Personal Firewall offers, monitoring network activity in real time, letting you control attempted internet access by programs, and enforce trusted zones for other users on your LAN
The Omniquad Personal Firewall is freeware.
Free Network Firewall from SoftPerfect Please be aware that the SoftPerfect Personal Firewall is not designed for novices and requires some networking knowledge from you for a correct configuration.
The SoftPerfect Personal Firewall is a free network firewall designed to protect your PC against attacks from the Internet or via a local area network.
SoftPerfect Personal Firewall offers customizable security and supports multiple network adapter configurations.
The program is easy to use, comes with a set of predefined rules and it is completely free.