chech_snmp ..... how to determine OID

[Marcus]

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Hi there,

Agnello George schrieb:

> I have installed nagios on one of my server and now i am tring to understand
> how to query my client machine using OIDs. But i just not understain one
> thing is how does one determine a a OID. I am following a tutorial by
> http://www.debianhelp.co.uk/linuxoids.htm . But what ai don't seem to
> understand is how do they determin a OID.
Common OIDs are standardized in MIB2, afaik.
Have a look here: http://www.et.put.poznan.pl/snmp/mib2/mib2.html

There are also RFC's covering the topic.

> Can some on help me with  the concept of OIDs and how do i come up with my
> own OID
What do you mean by "own OID"? I humbly and well-meaningly suggest
reading some documentation on SNMP, MIBs (especially MIB2) and OIDs.

> i followed the above tutorial and tried to query my clinet server to get the
> path where the disk is mounted  but was not successful here ..
> 
> [root at vps libexec]# ./check_snmp -H 121.XXX.XX.11 -C public -o
> 1.3.6.1.4.1.2021.9.1.2.1
> SNMP problem - No data received from host
could it be, that your host 121.XXX.XX.11 doesn't allow nagios to query
it on protocol UDP port 161. (Maybe a firewall is enabled.)
Is the snmp-server running? Is the community-string set right.

If you stick with the example and your firewall doesn't get in your way,
queries should work.

Hth,

Marcus
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