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Full Discussion: Firewall
Operating Systems Linux SuSE Firewall Post 302531715 by Corona688 on Friday 17th of June 2011 02:35:06 PM
Old 06-17-2011
Much like how 'man perl' doesn't tell you how to program in perl, the iptables manpage doesn't tell you how to make firewalls, and unfortunately iptables is a language of sorts. I had to start from base principles to try and understand it, and ended up having to draw flowcharts for the first time in a decade.

Utilities like firehol exist to make generating firewalls easier.
 

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fwb_compile_all(1)						 Firewall Builder						fwb_compile_all(1)

NAME
fwb_compile_all - Wrapper script that compiles policies for multiple firewall objects SYNOPSIS
fwb_compile_all -ffile.xml [-dwdir] [-av] [obj[ obj ...]] DESCRIPTION
fwb_compile_all is a wrapper script that compiles policies for several firewall objects in one batch job. This script takes a list of fire- wall object names on the command line (or '-a' command line option, see below) and calls policy compiler for each one. The script correctly determines which policy compiler is needed depending on the firewall platform of each object. OPTIONS
-a The script processes all firewall objects in the "/Firewalls" subtree. -d wdir Specify working directory. Compiler creates file with iptables script in this directory. If this parameter is missing, then ipta- bles script will be placed in the current working directory. -f FILE Specify the name of the data file to be processed. -v Script passes this option to the compiler, this makes it print diagnostic messages indicating its progress. URL
Firewall Builder home page is located at the following URL: http://www.fwbuilder.org/ BUGS
Please report bugs using bug tracking system on SourceForge: http://sourceforge.net/tracker/?group_id=5314&atid=105314 SEE ALSO
fwbuilder(1), fwb_ipt(1) fwb_ipf(1) fwb_pf(1) fwbedit(1), fwblookup(1) FWB
fwb_compile_all(1)
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