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Full Discussion: Compare an item in one line of a file against an item in the next line of the same file
Top Forums Shell Programming and Scripting Compare an item in one line of a file against an item in the next line of the same file Post 303045909 by championc on Friday 17th of April 2020 05:48:41 PM
Old 04-17-2020
Thanks for taking the time to reply

I am trying to work with a firewall ruleset. Every DROP rule should have a partner LOG rule. But from the following, you can see that two rules do not have a corresponding LOG rule. So I am trying to process the file and identify all rules I have a DROP but no LOG. The two offenders in this selection below are in BOLD

Code:
set security firewall name Private-to-AA rule 25 action 'drop'
set security firewall name Private-to-AA rule 9999 action 'drop'
set security firewall name Private-to-AA rule 9999 'log'
set security firewall name Private-to-BB default-action 'drop'
set security firewall name Private-to-BB 'default-log'
set security firewall name Private-to-CC default-action 'drop'
set security firewall name Private-to-CC 'default-log'
set security firewall name Private-to-CC rule 9999 action 'drop'
set security firewall name Private-to-CC rule 9999 'log'
set security firewall name Private-to-DD default-action 'drop'
set security firewall name Private-to-DD 'default-log'
set security firewall name Private-to-DD rule 9999 action 'drop'
set security firewall name Private-to-DD rule 9999 'log'
set security firewall name local default-action 'drop'
set security firewall name local rule 10 action 'drop'
set security firewall name local rule 10 'log'

 

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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)
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