I have used portsentry in the past. It detects port scans and responds by firewalling the IP. http://sourceforge.net/projects/sentrytools/ John. dnk wrote: > Can anyone recommend an opensource package (preferably something centos 4X compatible) > that can be used on a (iptables) firewall to block virus/trojan, etc? And maybe > something for intrusion detection? > > Thanks! > > Dnk > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > > > -- John Newbigin Computer Systems Officer Faculty of Information and Communication Technologies Swinburne University of Technology Melbourne, Australia http://www.ict.swin.edu.au/staff/jnewbigin