I got a lot out of reading "Red Hat Linux Firewalls" by Bill McCarty (Red Hat Press [Wiley], 2003). It covers firewalls design & implementation, principles of security, ipchains, and iptables, and includes worthwhile example scripts. This is an unsolicited testimonial! -Mike -----Original Message----- From: Peter Marshall [mailto:peter.marshall@xxxxxxxxx] Sent: Wednesday, August 04, 2004 10:09 AM To: netfilter@xxxxxxxxxxxxxxxxxxx Subject: Linux Security I know this is a bit off topic ... but ... Does anyone know a good Linux security book ? ( possibly related Redhat / fedora). Thanks Peter