[mrtg] Re: Fully integrated monitoring

Steve Shipway s.shipway at auckland.ac.nz
Wed Jul 6 22:36:28 MEST 2005

>I am really just beginning to scratch the surface of MRTG and 
>am currently using it to successfully monitor numerous network 
>devices on my LAN.  What I would really like to do is make it 
>act more like an early warning device.

This is more of an Alerting function than an Logging function.  MRTGis
logging, although it does have primitive thresholds.  Here, we use Nagios
for the alerting, which can be tied in to MRTG quite nicely (they can use
the same agents, and Nagios can be set to alert on RRD values, and so on).

>1. Is there a way to specify multiple threashholds (i.e., cpu 
>exceeds 60%, turn the graph orange, 90% turns graph red,...). 

Currently you cant do this with any of the MRTG frontends (routers2, 14all,
mrtg-rrd), as far as I know.  However, routers2 will add al ine to the graph
to show any defined thresholds.

>2. Is there a way to mail a warning notification?

This would be a function of the alerting tool.  Nagios can do this easily.


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