[HOWTO] Install and configure the Net-SNMP agent for Unix

fmangeant · **Posted:** Tue Dec 04, 2007 2:53 pm

Can you try the lib/functions.php from this thread ?

If that doesn't work, I guess you'll have to open a bug :oops:

Smux · **Joined:** Mon Sep 10, 2007 2:47 pm **Posts:** 40

No, this issue dont work for me. I create a issue for my problem here

aixuser · **Joined:** Thu Jan 31, 2008 3:06 pm **Posts:** 3

> AIX Packages are available in the University of California repository:

This site is no longer available.
Is there any other site or place to download?

Thanks!

gandalf · **Posted:** Fri Feb 01, 2008 7:19 am

Please search bullfreeware
Reinhard

fmangeant · **Posted:** Fri Feb 01, 2008 8:06 am

I've updated the HowTo with Bull links.

gandalf · **Posted:** Fri Feb 01, 2008 9:31 am

I've updated http://docs.cacti.net accordingly
Reinhard

utdrmac · **Joined:** Wed Dec 19, 2007 12:31 pm **Posts:** 11

Nice HOWTO!

But 'exec' is now deprecated. Got a HOWTO on using 'extend' ?

fmangeant · **Posted:** Wed Feb 27, 2008 8:25 am

Hi

in fact 'exec' still works with 5.4 :

Code:

$ /usr/sbin/snmpd --version

NET-SNMP version:  5.4.1
Web:               http://www.net-snmp.org/
Email:             net-snmp-coders@lists.sourceforge.net

Code:

$ cat /etc/snmp/snmpd.conf
rocommunity public
disk /
exec foo /tmp/foo.sh

Code:

$ snmpwalk -v 1 -c public localhost exttable
UCD-SNMP-MIB::extIndex.1 = INTEGER: 1
UCD-SNMP-MIB::extNames.1 = STRING: foo
UCD-SNMP-MIB::extCommand.1 = STRING: /tmp/foo.sh
UCD-SNMP-MIB::extResult.1 = INTEGER: 0
UCD-SNMP-MIB::extOutput.1 = STRING: 123
UCD-SNMP-MIB::extErrFix.1 = INTEGER: noError(0)
UCD-SNMP-MIB::extErrFixCmd.1 = STRING:

But the 'exec' keyword does not work anymore with custom OIDs...

I'll update the HowTo soon.

utdrmac · **Joined:** Wed Dec 19, 2007 12:31 pm **Posts:** 11

Quote:

But the 'exec' keyword does not work anymore with custom OIDs...

Exactly. And when I use 'extend' like this:

Code:

extend .1.3.6.1.4.1.2021.69 sysLoad /root/sysload_snmp.sh

I get incredibly long OIDs like this:

Code:

.1.3.6.1.4.1.2021.69.3.1.1.13.114.101.106.101.99.116.84.114.97.102.102.105.99

It works; just doesn't look right.

Lonlie · **Posted:** Tue Aug 12, 2008 7:48 am

Hi

Cacti is installed on Xp et I want to recover informations from CentOs.
When I save a new device, I have a snmp error.

I followed the tutorial :

com2sec Local 192.168.1.105 public
group ROGroup v1 Local
view all included .1
access ROGroup "" v1 noauth exact all none none

I saved and I restarted the snmp Daemon ...

Icer · **Joined:** Sun Sep 14, 2008 7:34 pm **Posts:** 2

Hi,

I did an snmpwalk on the .1.3.6.1.4.1.2021 (ucdavis)
to check all the stuff that is available.
But the extTable 1.3.6.1.4.1.2021.8 doesn't seem to be there.
prTable and dskTable are there but not extTable.
How can I add this part?

ty

gandalf · **Posted:** Wed Sep 17, 2008 2:31 pm

Please ask this question at the net-snmp-user mailing list
Reinhard

quequotion · **Joined:** Fri Oct 17, 2008 6:38 am **Posts:** 5

I can't seem to understand how any of this works.

One point in particular confounds me: How do you know the OID of any particular process? Is there some way to list all of the OIDs currently in use, or a way to get an OID for a process? Would process x have the same OID on every machine or a unique one on any machine running it?

gandalf · **Posted:** Fri Feb 20, 2009 3:53 pm

quequotion wrote:

I can't seem to understand how any of this works.

One point in particular confounds me: How do you know the OID of any particular process? Is there some way to list all of the OIDs currently in use, or a way to get an OID for a process? Would process x have the same OID on every machine or a unique one on any machine running it?

No. But if you create a script that first examines all "process name to index" correlations, you will then know the index to use for e.g. CPU usage.
Reinhard

allta · **Joined:** Fri Oct 24, 2008 12:41 am **Posts:** 3

For me, I've been struggling to graph the snmp "STRING" outputs.
For example:
snmpwalk -v2c -c cdsro228 1.2.3.4 .1.3.6.1.4.1.2021.8.1.101.2
UCD-SNMP-MIB::extOutput.2 = STRING: 10

I setup the SNMP OID Graph Template as stated in the http://forums.cacti.net/viewtopic.php?t=15353 webpage

However, my graphs aren't showing up. I'm getting nan, but whenever the snmp result changes, I see a spike in my graph and then it goes back to zero.

Ideally, I am expecting result between 0 and 100, but whenever this spike happens, I see something like 70m 50u etc.

Is there anything I'm getting wrong? I've tried exec, extend, pass commands of snmp and I'm not making headway at all.

Any Help will be highly appreciated.

[HOWTO] Install and configure the Net-SNMP agent for Unix

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