Shorewall users - Oct 2010 - store shorewall accounting data

Hello,

I have a question regarding accounting rules in Shorewall. Is it
possible to store the accounting data before I restart shorewall and
restore the data after a restart?
If I use the iptable-tools it overrides my Shorewall rules.

iptables-save -c >/etc/shorewall/counter.save
iptables-restore -c </etc/shorewall/counter.save

Is there a solution for this problem or is it possible to implement
that?

Cheers,
Daniel


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Daniel Meißner wrote:
>Is it possible to store the accounting data 
>before I restart shorewall and restore the data 
>after a restart?
I really doubt it.

How are you storing/using the data ? I use 
rrdtool at work and there are a couple of way 
round this problem. The best is to wrap the 
shorewall restart with three calls to update your 
rrd database - before the restart, do a normal 
update followed by an update with values of "U"; 
after the restart, do an update with values of 
"0". Actually the update with "U"s can be before 
or after the shorewall restart.

This will capture the counters just before you 
reset them, and the combination of an update with 
unknown as the value followed by zero will reset 
the counter internal to rrdtool so that it will 
accept the reset to zero without any glitches 
(either a large negative jump or a very large 
positive jump if the change is treated as a wrap 
around).

-- 
Simon Hobson

Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
author Gladys Hobson. Novels - poetry - short stories - ideal as
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------------------------------------------------------------------------------
Nokia and AT&T present the 2010 Calling All Innovators-North America contest
Create new apps & games for the Nokia N8 for consumers in  U.S. and Canada
$10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing
Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store 
http://p.sf.net/sfu/nokia-dev2dev