[mrtg] Re: Creating Graph

PAUL WILLIAMSON pwilliamson at mandtbank.com
Sat Feb 12 01:22:04 MET 2005

>>> "Anson Rinesmith" <arinesmith at bigrivertelephone.com> 2/11/2005
6:01:57 PM >>>
>Okay, lets take this example:
>I have a script that executes all the necessary code to update my
>"myownlog.log". By making this the first step in the script that would
>every 5 minutes, I should avoid having this file be open or locked
>running the next step. I'll handle all of the (if thens) and
>Then and only then, go on to making the graph.
>The next step in that script would be ...... what?
>I'm hearing use the external program call function. What is this?
>Does rateup change the log file?
>Sorry for all the confusion, but as Paul mentioned, I don't want to
put my
>server in a poor state.

Ok, here goes...

Write a script that outputs four lines:

In number
Out number

The uptime and hostname may be reversed, but neither is really 

Copy an existing MRTG config file (or duplicate an existing target 
section), adjust what is necessary (hostname, max vaules, etc.)
Put this script on your Target[ezwf]: line.  


MRTG calls the program, takes in the values generated, then does 
all the other stuff needed to generate the log file, the backup 
log file, the daily, weekly, monthly and yearly graphs, plus 
the webpage.

Replace the 1:communitystring at host with `/full/path/to/script`
Notice I put backticks in there, not single quotes.

Good luck.


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