[mrtg] Re: Accounting rules and MRTG

[Alex van den Bogaerdt]

John Oliver wrote:
> 
> Oh, is *that* all? :-)
> 
> I can't "compose a command that returns the statistics for a particular
> address" 'cause I don't know where or how those statistics are kept. 
> I've never done this before, so i don't know where to start...

Then why not just tell that.  In the manual page for ipchains
is described how to do accounting.

You don't know how to use IP chains; this is not a MRTG problem.

First rule of ipchains is: be careful.
If you do something wrong you might close yourself out (remote
administration) or at least disrupt normal services.

Simple command to count SMTP and NNTP traffic:

ipchains --new-chain account
ipchains --insert input --jump account
ipchains --insert account --protocol tcp --source-port  25 --bidirectional
ipchains --insert account --protocol tcp --source-port 119 --bidirectional

To list the numbers:
ipchains --list account --verbose --exact

Now my original answer:
Write a script that parses the output of that last command
(which I assumed you new about) and make it output some numbers
in MRTG compliant format (see reference.txt in the doc dir).

cheers,
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