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Firewall

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Senforce Unveils Mobile Firewall

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Senforce Technologies has released its Senforce Portable Firewall Plus (SPF+) for mobile devices. The software takes control of laptop computers at the network level, enabling users to shut off wireless connectivity, control access to hotspots and ensure computers are equipped with the latest virus protection. . . .

Are Firewalls Useful? And Another Thing...

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Address spoofing depends crucially on being able to hide the real source address, so why not make that impossible? One way to do it would be to have all the ISPs and network carriers whose connections constitute the Internet certify where packets entering the network come from. . . .

Building a Linux Router-Firewall

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This site is an introduction to simple hardware routers for small networks built from old, obsolete hardware and free software. The intended audience for this site are Newbies to both Linux and to hardware routers and firewalls. Included are instructions for hardware assembly and software configuration. . . .

Updated: fwall 1.4.6_rc4

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Fwall is a simple user-friendly firewall script for iptables. It is based on bash. It includes a configuration for 1-2 interfaces, port forwarding, DoS protection, and so on. The base code was cleaned up. Succession of rules was fixed. Logging of syn packets in the OUTPUT and FORWARD chains was fixed. . . .

Updated: fwall 1.4-6rc1

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fwall is a simple user-friendly firewall script for iptables. It is based on bash. It includes a configuration for 1-2 interfaces, port forwarding, DoS protection, and so on. . . .

Securing Linux Systems With Host-Based Firewalls Implemented With Linux iptables

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This article provides information and recommendations for securing Linux operating systems with host-based firewalls. This article aims to provide readers with a template for constructing a host-based firewall that provides a useful layer of protection against the risks of exposing a system to internal and/or external users. Additionally, readers can gain an understanding of construction methods for host-based firewalls in general and Linux-based firewalls in particular. This article targets an intermediate audience. . . .