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Chris Maxcer

Guide to Firewall Software and Services

Without a suitable firewall, hackers, viruses and worms can hijack your data

By Chris Maxcer, Freelance Writer

With the advent of "always-on" high-speed Internet connections in small businesses, computers are under constant threat of attack. To protect your systems from viruses, spyware and other threats that can take up residence in your PC without your knowledge, you'll need a good firewall.

A firewall helps you protect your private business information. Some top ways it can help your business:

  1. You can choose the information you want a firewall to protect, such as credit card numbers, passwords or banking information.
  2. A firewall can prevent outside computers from accessing sensitive information, such as your address, while you and your employees are online.
  3. A firewall can let you block "cookies" on a site by site basis. Cookies are small text files stored on your computer that help other sites remember when you revisit.
  4. Firewalls let you know if anyone has tried to tap your systems.
  5. A two-way firewall can help control outgoing information as well as incoming.

Action Steps
The best contacts and resources to help you get it done


Choose a dedicated firewall application

Make sure that the version you want runs on your PC, and look for an application that monitors both inbound and outbound traffic.
I recommend: Norton Internet Security is a top-of-the-line software bundle that includes firewall protection and can also protect your business against viruses, hackers, spyware and spam. Also check out PCMag.com's Firewall Security Software, TheFirewallGuide.com and ConsumerSearch.com's Firewalls guide. You can see more on PC security in PC World's "Bigger Threats, Better Defense."

Choose a free firewall application

Windows XP with Service Pack 2 comes with a basic built-in firewall, as does Mac OS X, but other free options are available.
I recommend: Check out the popular ZoneAlarm or others at Symantec. Freebyte's Guide to Free Anti-Virus Software.

Choose a firewall service

If you have a larger business with many PCs, you may want to choose a robust solution.
I recommend: McAfee and Symantec offer a wide range of computer security solutions for home office and small business. If you have a larger business with many Internet-connected PCs, you might want to hire an IT consultant to help you find the right managed service. Check out Geeks on Call or GeeksOnTime.

Get the right hardware

If you have an office network, consider a hardware-based firewall, which is typically found in broadband routers.
I recommend: Check out Webopedia.com's article "The Differences and Features of Hardware & Software Firewalls" for more details.

Tips & Tactics
Helpful advice for making the most of this Guide

  • Never use two software firewalls at the same time; turn off the basic firewall that is built into Windows XP if you plan to install another firewall application.
  • A firewall is only one part of the security you need on your PC — consider an all-in-one solution that includes antivirus, anti-spyware and anti-spam capabilities.

The official source of Firewall Software and Services is
the Network Firewalls page at Business.com

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Recommended Solution Providers

Cisco: Firewall Appliances
Offers network security appliances.

Firewalls: Network Securtiy Solutions
Firewall appliances as well as other network security products.

Astaro Internet Security: Firewall Solutions
Provides real-time protection for networks.

Symantec: Firewall
Essential protection from viruses, hackers, spyware, and spam.

McAfee
Provides integrated technologies provide protection that is efficient, effective, and affordable.

Freebyte
Lists free firewall programs.

Best Sites to Learn More

About.com: Information and Advice on Protecting Your Network with Firewalls
Articles and resources about firewalls.

Small Business Computing: Firewalls
Guide to small business firewall and other network security service.

Network World: Firewalls/VPN/Intrusion
Articles regarding firewalls, VPN and network intrusion and prevention.

Core Competence: Firewall Resources
Articles with information about various aspects of firewalls.

Really Linux: Firewall and Server Small Business Primer
Basics of firewall and servers for small business.

Enterprise IT Planet: Firewalls
Guide to firewall products.

PC Magazine: Firewalls
Compares various firewall products.

Firewall Guide
Personal firewall reviews.

Consumer Search
Features firewall reviews.

Best Blogs and Forums

Weblog of David M. Piscitello: Security Blog
Information about firewalls.

CERIAS Weblog: Information Assurance and Security
Features opinions from top computer security experts.

Gearater: Hardware Blog
Reviews and information about computer hardware, including firewall appliances.

Security Zero: IT Security Blog
News and information about IT Security technologies, products and market trends.

Internet Security Online: Internet Security Blog
News and information about internet security.

Screaming Electron: Firewall Forum
Discussion of firewall issues.

Firewall Forums: Firewall Discussion
Topics regarding firewall information and issues.



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