Q
Problem solve Get help with specific problems with your technologies, process and projects.

Virus protection on a firewall

I read you should not put virus protection software on a firewall (or even a proxy) to avoid an denial-of-service attack. Why is that?
I assume that your advisors are concerned about performance and/or the security risk of overloading your firewall with functionality. If someone sends a bunch of virus-loaded e-mail to your network, your firewall could choke from all of the traffic. Your best bet is to put antivirus solutions not on the firewall itself, but on your mail server and http/ftp proxy box. If these are separate machines from your firewall, a flood of viral traffic won't kill all of your Internet connectivity, but only those components being attacked. It's a pretty good idea from an architecture perspective to remove these functions from your firewall. Let the firewall focus on firewalling... other systems can do virus protection better.


For more information on this topic, visit these other SearchSecurity.com resources:
Best Web Links: Firewalls
Best Web Links: Secure Messaging


This was last published in October 2002

Dig Deeper on Malware, virus, Trojan and spyware protection and removal

PRO+

Content

Find more PRO+ content and other member only offers, here.

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.

Start the conversation

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.

-ADS BY GOOGLE

SearchCloudSecurity

SearchNetworking

SearchCIO

SearchEnterpriseDesktop

SearchCloudComputing

ComputerWeekly.com

  • CIO Trends #6: Nordics

    In this e-guide, read how the High North and Baltic Sea collaboration is about to undergo a serious and redefining makeover to ...

  • CIO Trends #6: Middle East

    In this e-guide we look at the role of information technology as the Arabian Gulf commits billions of dollars to building more ...

  • CIO Trends #6: Benelux

    In this e-guide, read about the Netherlands' coalition government's four year plan which includes the term 'cyber' no fewer than ...

Close