10-16-2010
Sounds like you guessed it right, a firewall rule might have been changed in the DMZ since you worked on the project.
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LEARN ABOUT DEBIAN
fwb_ipf
fwb_ipf(1) Firewall Builder fwb_ipf(1)
NAME
fwb_ipf - Policy compiler for ipfilter
SYNOPSIS
fwb_ipf [-vVx] [-d wdir] [-o output.fw] [-i] -f data_file.xml object_name
DESCRIPTION
fwb_ipf is a firewall policy compiler component of Firewall Builder (see fwbuilder(1)). This compiler generates code for ipfilter. Compiler
reads objects definitions and firewall description from the data file specified with "-f" option and generates ipfilter configuration files
and firewall activation script.
All generated files have names that start with the name of the firewall object. Firewall activation script has extension ".fw" and is sim-
ple shell script that flushes current policy, loads new filter and nat rules and then activates ipfilter. IPFilter configuration file name
starts with the name of the firewall object, plus "-ipf.conf". NAT configuration file name also starts with the name of the firewall
object, plus "-nat.conf". For example, if firewall object has name "myfirewall", then compiler will create three files: "myfirewall.fw",
"myfirewall-pf.conf", "myfirewall-nat.conf".
The data file and the name of the firewall objects must be specified on the command line. Other command line parameters are optional.
OPTIONS
-f FILE
Specify the name of the data file to be processed.
-o output.fw
Specify output file name
-d wdir
Specify working directory. Compiler creates firewall activation script and ipfilter configuration files in this directory. If
this parameter is missing, then all files will be placed in the current working directory.
-v Be verbose: compiler prints diagnostic messages when it works.
-V Print version number and quit.
-i When this option is present, the last argument on the command line is supposed to be firewall object ID rather than its name
-x Generate debugging information while working. This option is intended for debugging only and may produce lots of cryptic messages.
NOTES
Support for ipf returned in version 1.0.1 of Firewall Builder
Supported features:
o both ipf.conf and nat.conf files are generated
o negation in policy rules
o stateful inspection in individual rule can be turned off in rule options dialog. By default compiler adds "keep state" or "modulate
state" to each rule with action 'pass'
o rule options dialog provides a choice of icmp or tcp rst replies for rules with action "Reject"
o compiler adds flag "allow-opts" if match on ip options is needed
o compiler can generate rules matching on TCP flags
o compiler can generate script adding ip aliases for NAT rules using addresses that do not belong to any interface of the firewall
o compiler always adds rule "block quick all" at the very bottom of the script to ensure "block all by default" policy even if the
policy is empty.
o Address ranges in both policy and NAT
Features that are not supported (yet)
o negation in NAT
o custom services
Features that won't be supported (at least not anytime soon)
o policy routing
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_pf(1)
FWB
fwb_ipf(1)