flex-fw is a small and fast front-end for the Linux iptables utility with an easy command syntax like ipfw or pf from BSD systems. It features service-oriented configuration, support for network profiles, which is useful for notebooks, support for macros, easy migration to another network environment by redefining macros, easy distribution to many hosts, syslog logging support for iptables errors and dropped packets, an interactive mode for manually configuring "on the fly", a batch mode for execution from shell scripts, and a library mode for using the flex-fw functions in your shell scripts.
'blaze' is a Netfilter iptables firewall script that is meant to be ridiculously easy to use, pretty basic, but powerful enough to handle a box with multiple NICs to support gateway usage, possibly with NAT. Setup should take no more than five minutes. Logging is not currently supported.