[mrtg] Re: oids and multi target syntax

[Mike Koch]

Why do you bother with this approach ? It would be far easier if you write a
little script that query these OIDs, do the substraction, and returns four
lines :
value 1
value 2
0
0

Then, in your Target, put the script.


-----Original Message-----
From: grinnell at american.edu [mailto:grinnell at american.edu]
Sent: mercredi 18 juillet 2001 15:56
To: mrtg at list.ee.ethz.ch
Subject: [mrtg] oids and multi target syntax



Hey,

I'm still looking for an example of a working cfg that uses oids and
multitarget syntax
i.e. something like
Target[test]: .1.3.6.1.4.1.2021.4.5.0:public at localhost -
.1.3.6.1.4.1.2021.4.6.0:public at localhost &
.1.3.6.1.4.1.2021.4.5.0:public at localhost -
.1.3.6.1.4.1.2021.4.6.0:public at localhost

Note the minus signs in there.  I need to get a value of used memory, but
the only oids that i can find are "total memory" and "free memory".  The
Configuration reference page indicates that this can be done with multi
target syntax, but when I try it, in many different combinations, I either
get 0's in the log file, or the error
WARNING: Could not match host:'public at localhost' ref:'' key:''

I know the oids are returning the correct type of values, because I've
checked them with snmpget and I can graph the values seperately in MRTG.
i.e. Green = Total


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