From: Jerry Kreps Date: Fri, 29 Dec 2000 17:22:32 -0600 Message-Id: <00122917223204.31709@JLKreps> Subject: Re: [SLE] Is my firewall safe? Try out some of the following sites: http://www.sdesign.com/securitytest For browsers that use ActiveX: http://windows.about.com/compute/windows/gi/dynamic/offsite.htm?site=http%3A... Or, you can download tools which you can run yourself: http://packetstorm.securify.com JLK <p>On Friday 29 December 2000 06:27, Andrew Smith wrote:

Hi

I've just finished setting up a linux box to act as an internet gateway & firewall, tho i'm not sure whether it's secure. I have currently blocked all incomming CONNECTIONS from ports 0 to 1023 except for 20, 21 and 80 (as the machine is also being used for a web & ftp server). I know that this range of ports are used by services run as root, so should this be enough? I was considering blocking connections from 0 to 65535 but this would mean 'real' ftp wouldnt work for me and i'd have problems running Ha flife multiplayer games - oh no!!!

Thanks,

Andrew

-- Scientific theories, according to Sir Karl Popper, can be "falsified," or proven wrong, by experiment. Unscientific theories -Marxist dialectical history and Freudian psychology were Popper's favorites- are formed in such a way that they cannot be falsified by data.