Greetings! Out of all the recent articles about DOS attacks on some of the big websites, the one thing that stick out to me was the fact that a lot of unsuspecting computers on the internet were used to launch the attacks, and the sysad of those computers may never know it. I have a SuSE Linux 6.3 box with ipchains enabled to route network traffic through a PPP connection to the internet that's on between 8:30am to 1:30am. (This is to avoid being charged by my ISP for having a 24/7 connection.) I'm using a rather simple three-line configuration file to make this stuff happen. I don't have a firewall or anything else to make it difficult for hackers. I have a few questions about this configuration... 1. Does my current configuration prevents someone from using my as a launch pad for DOS attacks? 2. How can I tell if my system is being used in this way? I'm looking into the possibility of setting up a firewall (more for the learning potential rather than a specific security threat) and/or adding some additional rules to ipchains. Any help is greatly appreciated! Thanks! Christopher Reimer -- To unsubscribe send e-mail to suse-linux-e-unsubscribe@suse.com For additional commands send e-mail to suse-linux-e-help@suse.com Also check the FAQ at http://www.suse.com/Support/Doku/FAQ/