I think that the performance of the machine (server) fall down. "Kevin Crichton" <[EMAIL PROTECTED]> wrote:
>I run zone alarm and norton internet security 2001 together. I think >that if you are going to install software firewalls you should have 2 >installed to complement each other or provide "defence in depth" since >its not really true to believe or argue that they 'spread the load' in >the way proxy servers can do. > >A few UK pc and internet magazines have recommended this dual firewall >strategy and I have not noticed any conflicts (judging by my log files). >To the best of my knowledge, I don't think I've seen any warning in >print or online about the dangers of running 2 firewalls together (so >long as you remember to configure them correctly!). After all, any >security expert worth their salt would say that no one software firewall >is 100% effective by itself. > >Kevin Crichton, MCSE >ICL, UK > >Philip Wagenaar wrote: > >> Hi, >> >> Would there be a problem if you ran two two firewall proggies at the >> same time? >> >> >> >> I did a websearch first any only found >> http://www.fosters.com/special_sections/online/articles2001/1023d.htm >> Which only says two firewalls might conflict with each other without any >> specific info. >> >> Besides that there might be softwarewise conflict between them, I'm only >> interested in this from security standpoint. I was thinking you could >> use the strengths of both. >> >> I also read on the website of networkice that most firewalls fall short >> when networkload is high: BlackICE was able to catch 99% of the attacks >> on a fully-loaded 10/100 Mbps network using less than 40% of the CPU >> resources. The closest competitor used 90% of the CPU resources and only >> managed to catch 9% of the attacks. >> >> I can't imagine that when you have installed two firewalls that they >> would spread the load since the two programs do not interact with each >> other, but more likely that they both would take more cpu resources and >> check less network traffic when running two firewalls at the same time >> under heave network traffic. Is this true? >> >> Philip Wagenaar >> >> >> >> > > > > >**************************************************************************************** >This message is confidential, its contents do not constitute >a commitment by AXA except where provided for in a written agreement >between you and AXA. >Any unauthorised disclosure, use or dissemination, either whole >or partial, is prohibited. If you are not the intended recipient of the message, >please notify the sender immediately. >***************************************************************************************** > > -- __________________________________________________________________ Your favorite stores, helpful shopping tools and great gift ideas. Experience the convenience of buying online with Shop@Netscape! http://shopnow.netscape.com/ Get your own FREE, personal Netscape Mail account today at http://webmail.netscape.com/
