[Nagiosplug-help] check_snmp hangs

Ham, Gerrit van IA60 g.van.ham at nijmegen.nl
Mon Dec 3 10:08:05 CET 2012

Hello Brian,

I guess the '-c' instead of '-C' to specify the community string is also a typo. If I specify this incorrectly I get an error message:
./check_snmp -H testserver -o iso. -c public -P2c
check_snmp: Invalid critical threshold: %s
- public
Usage:check_snmp -H <ip_address> -o <OID> [-w warn_range] [-c crit_range]
[-C community] [-s string] [-r regex] [-R regexi] [-t timeout] [-e retries]
[-l label] [-u units] [-p port-number] [-d delimiter] [-D output-delimiter]
[-m miblist] [-P snmp version] [-L seclevel] [-U secname] [-a authproto]
[-A authpasswd] [-X privpasswd]

Which version of check_snmp are you using? I have 1.72 on RHEL6 and RHEL5.

./check_snmp -V
check_snmp (nagios-plugins 1.4.9) 1.72

Maybe download and compile check_snmp?

Kind regards,

Gerrit van Ham

Van: Broughton, Brian [mailto:Brian.Broughton at PPHeartland.org]
Verzonden: Thursday, November 29, 2012 4:24 PM
Aan: 'Nagios Plugin Help List'
Onderwerp: Re: [Nagiosplug-help] check_snmp hangs

The -p2c is a typo on my part I am using -P2c.

From: Ham, Gerrit van IA60 [mailto:g.van.ham at nijmegen.nl]
Sent: Thursday, November 29, 2012 8:55 AM
To: Nagios Plugin Help List
Subject: Re: [Nagiosplug-help] check_snmp hangs

Hello Brian,

I think you have to replace '-p2c' by '-P2c'.
The -p option is used to specify a port,
-P is used to specify the SNMP protocol.
Run check_snmp --help for more information.

Kind regards,

Gerrit van Ham

Van: Broughton, Brian [mailto:Brian.Broughton at PPHeartland.org]
Verzonden: Thursday, November 29, 2012 3:34 PM
Aan: 'nagiosplug-help at lists.sourceforge.net'
Onderwerp: [Nagiosplug-help] check_snmp hangs

I originally posted this issue to Nagios forums but was directed to present this issue to developers of the plugin, see below.

Under Host Groups I have the following problem, the uptime on the router is listed as critical, (Service Check Timed Out)

Log file has the following entry Warning:
Attempting to execute the command "/usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: PROBLEM\n\nService: Uptime\nHost: RD Cisco 8818\nAddress: 192.168.xxx.xxx\nState: CRITICAL\n\nDate/Time: Wed Nov 28 12:49:00 CST 2012\n\nAdditional Info:\n\n(Service Check Timed Out)\n"

When I manually run check_snmp it hangs.
/usr/local/nagios/libexec# ./check_snmp -H 192.168.xxx.xxx -o iso. -c comname -p2c
While check_snmp is running I ran:
ps -aux | grep snmp
I get the following output;
/usr/bin/snmpget -t 1 -r 5 -m ALL -v 2c -c   192.168.xxx.xxx:161 iso.

When I manually run snmpget it will return;
snmpget -t 1 -r 5 -m ALL -v 2c -c comname 192.168.xxx.xxx:161 iso.
iso. = Timeticks: (406909583) 47 days, 2:18:15.83

The community name is not being passed, is this normal?
I have the proper community name listed in switch.cfg, not sure what else I can do.
This is my first pass at setting up and using nagios.
Using Ubuntu 12.10 fresh install.

[cid:image001.png at 01CDD13D.015A7C90]<http://www.plannedparenthood.org/heartland/>

Brian Broughton
Network Administrator 1

Planned Parenthood of the Heartland
1171 7th Street, Des Moines, IA 50314
phone: 515.235.0435
fax: 515.280.9525
brian.broughton at ppheartland.org<marsha.dorhout at ppheartland.org>

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