Firewall - Page 6 - Results from #117

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Week 45: Firewall Security Tips

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A DMZ (Demilitarized Zone) is a combination of firewalls -- a perimeter network segment logically between internal and external networks. Also called a "screened subnet," its purpose is to enforce the internal network's IA policy for external information exchange and to provide external, untrusted sources with restricted access to releasable information while shielding internal networks from outside attacks. . . .

Anthony Pell
Oct 28, 2004

How many firewalls are enough?

We recently had a situation in which one of our servers was accessed by someone from another building/floor who had no need to get into the system. Part of the problem was that someone left their username/password out in plain sight; that problem has been fixed. . . .

Anthony Pell
Oct 15, 2004

How To Shop For A Small-Business Firewall

So your business has outgrown the el cheapo hardware firewall you picked up at the mall? Learn how to find top-of-the-line capabilities without paying top-of-the-line prices. . . .

Anthony Pell
Oct 14, 2004

Firewalls for small business

A firewall is either hardware, software or a combination of both that is used to prevent, block or should I say try to prevent unwanted information from entering your network. This applies to a home, small business, or a large corporation network. A firewall monitors all of the incoming and outgoing traffic (information) to the local area network. . . .

Anthony Pell
Oct 13, 2004

Microsoft: Firewalls are failing to keep out hackers

Firewalls aren't doing a good enough job of protecting corporate networks, according to a Microsoft security expert. Speaking in London on Monday at a technical briefing on the need for next generation firewalls, Microsoft security technology architect Fred Baumhardt outlined some of the gaps that traditional firewalls are leaving open. . . .

Anthony Pell
Oct 06, 2004

Senforce Unveils Mobile Firewall

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. . . .

Anthony Pell
Sep 28, 2004

Are Firewalls Useful? And Another Thing...

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. . . .

Anthony Pell
Sep 23, 2004

Building a Linux Router-Firewall

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. . . .

Anthony Pell
Jun 25, 2004

Updated: fwall 1.4.6_rc4

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. . . .

Anthony Pell
Mar 04, 2004

Updated: fwall 1.4-6rc1

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. . . .

Anthony Pell
Feb 11, 2004

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

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. . . .

Anthony Pell
Jan 30, 2004

Linux as a Firewall Foundation

For a few days in NYC, LinuxWorld is the center of the open source universe. In keeping with that spirit, we examine some AO member recommendations on firewalls based on the open-source OS. Whether it's used to power complex datacenters or breathe new life into aging machines, Linux has undoubtedly established itself as a formidable IT presence. . . .

Anthony Pell
Jan 23, 2004

Are Consumer-Grade Firewalls Really Secure?

With the growing demand for always-on high-speed Internet access, consumer-grade firewall boxes are becoming as common in computing as modems and mice. The prevalence of these devices makes sense, as network security and protection against intruders have become topics of great concern for home-office telecommuters as well as for IT staff in upscale corporations. . . .

Anthony Pell
Jan 14, 2004

fwall 1.4-2

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. . . .

Anthony Pell
Dec 29, 2003

Multilayer firewall strategy

There is a common misconception that you can protect all assets with only a firewall. Find out why every organisation must consider a multilayer approach along with the firewall to protect all its assets While firewalls can secure Internet access, protect . . .

Anthony Pell
Dec 17, 2003

Firewall: Migrating to Astaro Security Linux

Facing a time-consuming and expensive upgrade process, Lloyd found an ideal solution: he turned to an all-in-one security product. Lloyd set up his own network at home where he downloaded a free 30-day trial of Astaro Security Linux. "To meet my . . .

Anthony Pell
Dec 16, 2003

Making the VPN connection

When a VPN does its job correctly, remote users don't notice it's there. Packets move from site to site, user to user. Encryption algorithms scramble the data and then safely unscramble it at the other end. Information flows. Work gets done.. . .

Anthony Pell
Dec 10, 2003

Home User Security: Personal Firewalls

Firewalls play a crucial role in network and computer security. Part I of this series, Home User Security: Your First Defense, examined the typical functions of firewalls and how they can be of use on an individual level. More specifically, the . . .

Anthony Pell
Dec 09, 2003

VPN and Firewall Market Up in Q3

Worldwide VPN and firewall hardware and software revenue grew 9% to $780 million between 2Q03 and 3Q03, and will reach $955 million by 3Q04, according to Infonetics Research's quarterly worldwide market share and forecast service, VPN and Firewall Products. By 2006, . . .

Anthony Pell
Dec 09, 2003

User-Level Firewalling with Nufw

Nufw brings the concept of users into IP packet Filtering. This is a set of daemons that permit to filter packets on a per-user basis. The gateway authorizes a packet depending on which remote user has sent it. On the client . . .

Anthony Pell
Dec 08, 2003

Firewall - Page 4

An Introduction to UFW, Ubuntu’s ‘Uncomplicated’ Firewall

The Open Source Firewall – IPFire 2.27 – Core Update 173 Released: What’s New?

IPFire Hardened Linux Firewall Distro Is Now Powered by Linux Kernel 6.1 LTS