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SOURCE AND FREE TO USE FREE SOFTWARE LICENSED UNDER THE GNU (General Public License) Firestarter is a free personal firewall tool and open source that uses the system (iptables / ipchains) Netfilter included in the Linux kernel. Firestarter has a graphical interface for configuring firewall rules and other options. It also monitors real-time network traffic across the system and also facilitate port forwarding, internet connection sharing and the DHCP service. Firestarter is licensed under the GNU General Public License. Introduction Firestarter is an Open Source visual firewall program. The program aims to combine ease of use with powerful features, therefore serving both Linux desktop users and system administrators. We are firmly convinced that their job is to make the political decisions of high level of safety and ours is to take care of the underlying details. This is a departure from your typical Linux firewall , which has traditionally required arcane im...

ON DYNAMIC CONFIGURATION (Stateful Rules) PF (Packet Filter) is the packet filter or firewall configuration based on dynamic (stateful rules) written by Darren OpenBSD. It replaced the filter in OpenBSD Darren Reed IPFilter due to problems with the license, namely that Reed had to give permission to the OpenBSD developers to change the  code. Theo de Raadt said when IPFilter was removed "the software that OpenBSD uses and shares should be free for all (both users and companies), for any purpose you want to be given, including their modification, use, piss on it or even join babies in crushing machines or atomic bombs to drop in Australia. " Due to the discomfort of the OpenBSD team is licensed by Reed, it was decided to replace the entire package rather than lose more time trying to negotiate the issue. The PF has since developed very rapidly, and in OpenBSD 3.8 and have much advantage over other firewall options. Filtering syntax is very similar to IPFilt...

INCLUDES AN INTRUSION DETECTION SYSTEM INBOUND AND OUTBOUND PROGRAMS ZoneAlarm is a firewall software produced by Check Point . It includes an intrusion detection system starters, like the ability to control which programs can create outbound connections - the latter is not included in the firewall of Windows XP Service Pack 2.  In ZoneAlarm, program access is controlled by the "zones" in which divide the network connections on your computer . The "zone of confidence" ("trusted zone") typically includes local area network users and can share resources such as files and printers, while the "Internet zone" ("Internet zone") includes everything but is in the "zone of confidence". The user can specify that "permits" (trusted zone client, trusted zone server, Internet zone client, Internet zone server) to a program before you attempt to access the Internet (eg before running for the first time) or, alternatively,...