Windows – Monitor Network Card utilisation using Nagios

Out of curiosity, have you tried writing your own script for doing what you want to do?

NSClient++ is much like NRPE it is a transport for running script on remote server (in this case windows servers). Thus you have a lot of scripts you can run and you can also write your own. In Addition to this it also has some built-in commands (which now days are pretty "ok" documented according to the author (me) if not let me know what is missing) but the "flexibility" comes from scripting if you ask me.

And yes the CheckDisk had problems in the latest stable release and has (to my knowledge) been fixed since (and 0.3.7 will be out pretty soon which fixes this issue).

Anyways, sorry for barging in like this, but I played with "google alerts" and got an eamil with this link so I figured I might as well respond :P

(don't know if this is a double post but I the reply I write before was not here so i am re-posting)

// Michael Medin

I did this with a cron script, stores current value in a temp file then next time uses it to calculate bandwidth utilization since last run.

#!/bin/bash

email_address=""
router_ip=""

# 80% BANDWIDTH [ (384000bps) 48,000Bps ] - 20% = 38,400 Bps
alertBW="76800"

lastBWFile="/var/log/ciscoGW.log"
lastBW=`cat $lastBWFile | awk '{print$2}'`
lastTime=`cat $lastBWFile | awk '{print$1}'`

curBW=` snmpget  -c snmap_name -v 1 $router_ip IF-MIB::ifOutOctets.2  | awk '{print$4}'`

let diffBW=$curBW-$lastBW
#echo "Diff BW: $diffBW"
timeNow=`date +%s`
let diffTime=$timeNow-$lastTime
let alertBW=$alertBW*$diffTime

echo "$timeNow $curBW" > $lastBWFile

if [ $diffBW -gt $alertBW ]; then
#       echo "Over limit!"
        echo "Bandwith used over $diffTime seconds: $diffBW" | mail -s "BANDWIDTH OVER LIMIT!!!!" $email_address
fi

Since I was more interested in actual peaks I've since moved to using rrdtool:

#start 15 minutes ago
#end 5 minutes ago since rrdtool queries every 5 minutes 
rrdtool fetch $FROM MAX -s -900 -e -300