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From: TJ Easter (tjeastergmail.com)
Date: Mon Jan 03 2005 - 21:54:06 CST
Mods: Sorry for the shameless plug, but I think some might be interested.
I've recently put together firewall 1.4, available at
firewall lets you configure your rules with flat text files such as
/etc/firewall/tcp.ssh or /etc/firewall/udp.nfs. 1.4 comes with a
small daemon that monitors the st_mtime of all of the files in
/etc/firewall. You can cause the firewall to reload and pick up the
changes in the files with 1 second granularity. This is the closest
thing to real-time manipulation of a Linux-based firewall I've come
across. There is little to no cost in my environment (console only,
Comments, feedback, complaints, etc... are welcome.