SNMP showing Unknown

[Gary Every]

I've had this problem, and it's often related to a Stale NFS mount or other
reason snmp can't stat the filesystem. If it's a stale mount, and you can't
umount it (often due to the remote nfs server being down, or no longer
sharing its exports) try:

mount -rf /<mounted_fs>

It may come back with an error, saying it's mounted it ro, and you may need
to repeat this command several times, it MAY umount. There is a chance you'l
have to bite the bullet and reboot.



On Fri, Sep 10, 2010 at 7:36 AM, Dorfman, Justin <justin at mahalo.com> wrote:

> Ananth,
>
> This is how we check an SNMP process (in commands.cfg):
>
>
>> # 'check_snmp' command definition
>
> define command{
>
>         command_name    check_snmp_process
>
>         command_line    $USER1$/check_snmp_process.pl -H $HOSTADDRESS$ -C
>> $USER3$
>
>          }
>
>
> I would recommend you downloading these perl scripts:
> http://nagios.manubulon.com/index_snmp.html and putting them into your *
> /usr/local/nagios/libexec* folder.
>
> Let me know how it goes.
>
> Regards,
>
> Justin Dorfman
> Mahalo.com Inc. > Jr. Systems Engineer
> 818.485.1458
> @jdorfman <http://www.twitter.com/jdorfman> | @MahaloSysops<http://twitter.com/MahaloSysops>| Blog:
> http://bit.ly/aNiWSk
>
>
> On Thu, Sep 9, 2010 at 2:36 AM, IT Toonz <it.toonz at gmail.com> wrote:
>
>>  Hi Justin,
>>
>>
>>
>> We have the native SNMP in Windows installed and we wanted to monitor
>> those readings. We downloaded and installed Net-SNMP, but seems there a bit
>> of configuring to do, we are fiddling with Nagios settings, so not sure
>> whether we want to spend time learning Net-SNMP at present.
>>
>>
>>
>> But its definitely something which we want to look at in the future.
>> Thanks for sharing the info.
>>
>>
>>
>> Meanwhile we are still stuck in SNMP!!
>>
>>
>>
>> This is what we get when we run
>>
>> [root at Nagios nagios]# snmpwalk -v1 -c taipl 192.168.3.100 snmp
>>
>> SNMPv2-MIB::snmpInPkts.0 = Counter32: 1
>>
>> SNMPv2-MIB::snmpOutPkts.0 = Counter32: 11
>>
>> SNMPv2-MIB::snmpInBadVersions.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpInBadCommunityNames.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpInBadCommunityUses.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpInASNParseErrs.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpInTooBigs.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpInNoSuchNames.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpInBadValues.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpInReadOnlys.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpInGenErrs.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpInTotalReqVars.0 = Counter32: 11
>>
>> SNMPv2-MIB::snmpInTotalSetVars.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpInGetRequests.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpInGetNexts.0 = Counter32: 14
>>
>> SNMPv2-MIB::snmpInSetRequests.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpInGetResponses.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpInTraps.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpOutTooBigs.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpOutNoSuchNames.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpOutBadValues.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpOutGenErrs.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpOutGetRequests.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpOutGetNexts.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpOutSetRequests.0 = Counter32: 0
>>
>> SNMPv2-MIB::snmpOutGetResponses.0 = Counter32: 25
>>
>> SNMPv2-MIB::snmpOutTraps.0 = Counter32: 10
>>
>> SNMPv2-MIB::snmpEnableAuthenTraps.0 = INTEGER: enabled(1)
>>
>>
>>
>>
>>
>> So seems client side is fine. Please advice... below is the error we get
>> by mail
>>
>>
>>
>> ***** Nagios *****
>>
>>
>>
>> Notification Type: PROBLEM
>>
>>
>>
>> Service: SNMP
>>
>> Host: antivirsrv
>>
>> Address: 192.168.3.100
>>
>> State: UNKNOWN
>>
>>
>>
>> Date/Time: Thu Sept 9 14:42:56 IST 2010
>>
>>
>>
>> Additional Info:
>>
>>
>>
>> No OIDs specified
>>
>>
>>
>> below is the config settings for windows servers
>>
>>
>>
>> # Create a service for monitoring SNMP
>>
>>
>>
>> define service{
>>
>>         use                     generic-service
>>
>>         host_name               taipl-domsrv
>>
>>         host_name               tai3dserver
>>
>>         host_name               tai3dstorage-02
>>
>>         host_name               tai3d-avsrv
>>
>>         service_description     SNMP
>>
>>         check_command
>> check_snmp!.1.3.6.1.2.1.25.2.3.1.6.2!1!Cachebuffers!50000!2000
>>
>>         }
>>
>>
>>
>> Please advice....what else is there to configure, please be specific, we
>> just started in Fully Automated Nagios, with a lot of help we have reached
>> this far.... J
>>
>>
>>
>> Regards
>>
>> Ananth.
>>
>>
>>
>> *From:* Dorfman, Justin [mailto:justin at mahalo.com]
>> *Sent:* 08 September 2010 22:59
>>
>> *To:* Nagios Users List
>> *Subject:* Re: [Nagios-users] SNMP showing Unknown
>>
>>
>>
>> First off do you have NET-SNMP (
>> http://sourceforge.net/projects/net-snmp/files/net-snmp%20binaries/5.5-binaries/)
>> installed on the server you are trying to fetch info from?
>>
>>
>>
>>
>> Regards,
>>
>> Justin Dorfman
>> Mahalo.com Inc. > Jr. Systems Engineer
>> 818.485.1458
>> @jdorfman <http://www.twitter.com/jdorfman> | @MahaloSysops<http://twitter.com/MahaloSysops>| Blog:
>> http://bit.ly/aNiWSk
>>
>>  On Wed, Sep 8, 2010 at 4:54 AM, IT Toonz <it.toonz at gmail.com> wrote:
>>
>> *You need to look at the service definition as well as the command*
>>
>> *definition to find out how the command is configured to run for this*
>>
>> *particular service check.*
>>
>>
>>
>> Which file that will be? The command.cfg file entry was the one we had put
>> in the earlier mail.
>>
>>
>>
>> We are newbies's so if possible kindly explain in detail.
>>
>>
>>
>> Regards
>>
>> Ananth.
>>
>>
>>
>>
>>
>>
>>
>> -----Original Message-----
>> From: Jim Avery [mailto:jim at jimavery.me.uk]
>> Sent: 08 September 2010 16:13
>> To: Nagios Users List
>> Subject: Re: [Nagios-users] SNMP showing Unknown
>>
>>
>>
>> On 8 September 2010 10:19, IT Toonz <it.toonz at gmail.com> wrote:
>>
>> > We are using FAN 2.0
>>
>> >
>>
>> >
>>
>> >
>>
>> > One of our Windows Servers shows in Nagios.
>>
>> >
>>
>> >
>>
>> >
>>
>> > tai3dstorage-02 SNMP UNKNOWN 09-08-2010 15:09:50 1d 21h 46m 25s 3/3 No
>> OIDs
>>
>> > specified
>>
>> >
>>
>> >
>>
>> >
>>
>> > How can we troubleshoot it. This is the snmp entry in commands.cfg file.
>>
>> >
>>
>> >
>>
>> >
>>
>> > # 'check_snmp' command definition
>>
>> >
>>
>> > define command{
>>
>> >
>>
>> >         command_name    check_snmp
>>
>> >
>>
>> >         command_line    $USER1$/check_snmp -H $HOSTADDRESS$ $ARG1$
>>
>> >
>>
>> >         }
>>
>> >
>>
>> >
>>
>> >
>>
>> > We entered the snmp community name give the switch –C after check_snmp,
>> but
>>
>> > still no effect.
>>
>>
>>
>> You need to look at the service definition as well as the command
>>
>> definition to find out how the command is configured to run for this
>>
>> particular service check.
>>
>>
>>
>> hth,
>>
>>
>>
>> Jim
>>
>>
>>
>>
>> ------------------------------------------------------------------------------
>>
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>>
>>
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>>
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>>
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>>
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>>
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>>
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>>
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>>
>> ::: Please include Nagios version, plugin version (-v) and OS when
>> reporting any issue.
>>
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>>
>>
>>
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>>
>>
>>
>>
>> ------------------------------------------------------------------------------
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>>
>> Show off your parallel programming skills.
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>> _______________________________________________
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>> ::: Please include Nagios version, plugin version (-v) and OS when
>> reporting any issue.
>> ::: Messages without supporting info will risk being sent to /dev/null
>>
>
>
>
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>



-- 
Gary Every
"Pay it Forward!"
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