Once upon a time I configured a 2.2.x Linux firewall with ipchains, and
used a script with which I was happy, as it opened only certain ports, had
anti-spoofing protection, etc.
More recently I configured a 2.4.x Linux firewall with iptables. However
I am not happy with the iptables configuration used there.
Does anyone know about a collection of recommended iptables scripts for
the following environments:
1. Single Linux PC at home (no need to export services like WWW to the
Internet).
2. Home or small office network (NAT, any PC can access the Internet,
nothing is exported to the world).
Note: for more complicated setups (such as office Web server to be
accessible from the Internet), I'd not rely upon cookbook scripts but have
someone who really knows the stuff (possibly me) set it up for me.
But for the average home/small office user, a restrictive cookbook
approach is the best approach, for if he has to figure things out by
himself he may make mistakes; and if he hires a security expert, this may
be expensive and he may be let down by an improperly qualified "expert".
--- Omer
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