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From: "Andras Kende" <andras@kende.com>
To: "'Shawn Guillemette'" <sgill@metrocast.net>,
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Date: Tue, 11 Jan 2005 10:40:48 -0600
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Subject: RE: Mrtg question
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-----Original Message-----
From: owner-freebsd-questions@freebsd.org
[mailto:owner-freebsd-questions@freebsd.org] On Behalf Of Shawn Guillemette
Sent: Tuesday, January 11, 2005 8:40 AM
To: questions@freebsd.org
Subject: Mrtg question

Im using net-snmp-5.2.1 with mrtg on a Alpha CPU.

I want to monitor my memorry usage. However when I add the following to 
the mrtg.cfg file I find that SNMPD shuts down and I get these errors in 
the logs.


I add this to mrtg.cfg




LoadMIBs: /usr/local/share/snmp/mibs/UCD-SNMP-MIB.txt


### Memmory

Target[freemem]:.1.3.6.1.4.1.2021.4.11.0&.1.3.6.1.4.1.2021.4.11.0:public@loc
alhost
Options[freemem]: nopercent,growright,gauge,noinfo
Title[freemem]: Free Memory
PageTop[freemem]: <H1> Free Memory </H1>
MaxBytes[freemem]: 1000000
kMG[freemem]: k,M,G,T,P,X
YLegend[freemem]: bytes
ShortLegend[freemem]: bytes
LegendI[freemem]:  Free Memory:
LegendO[freemem]:
Legend1[freemem]: Free memory, not including swap, in bytes





I get this in the snmpd.log file


kvm_openfiles: Permission denied
kvm_openfiles: /dev/mem: Permission denied


I do see the file in /dev/mem


ls -la mem
crw-r-----  1 root  kmem    2,   0 Jan  6 17:45 mem

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Hello Shawn,

Try these OID:

ucd/net - Memory - Buffers:
.1.3.6.1.4.1.2021.4.14.0

ucd/net - Memory - Cache:
.1.3.6.1.4.1.2021.4.15.0

ucd/net - Memory - Free:
.1.3.6.1.4.1.2021.4.6.0

http://www.kende.com/cacti/graph.php?local_graph_id=14&rra_id=all


Andras Kende
http://www.kende.com