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Help with check_snmp to get a temperature sensor...
Posted: Wed Oct 21, 2015 10:58 am
by jasonlehman
We have an X-300
http://www.controlbyweb.com/x300/ temperature sensor.
I would like to create a Nagios check via check_snmp to this devices sensor 1.
I can get this device to work w/ a third party MibBrowser & get the temperature of sensor 1 returned to me.
Before I attempt to create the command and service, I tried to just run check_snmp to test my snytax.
I think I am using the correct syntax...
Code: Select all
[root@nagios plugins]# ./check_snmp -H 10.25.102.247 -p 161 -P 1 -C webrelay -o .1.3.6.1.4.1.30586.10.1 -w 80 -c 90
External command error: Error in packet
Reason: (noSuchName) There is no such variable name in this MIB.
But, as you can see I get an error.
I even emailed X-300 support & they verified that I am using the correct OID & since it works w/ a third part GUI tool; dont think they'll be much help.
Any suggestions / see this before?
Thanks.
Re: Help with check_snmp to get a temperature sensor...
Posted: Wed Oct 21, 2015 11:06 am
by jasonlehman
I just found that appending a .0 to the end of the OID it what was missing.
Code: Select all
[root@nagios plugins]# ./check_snmp -H 10.25.102.247 -p 161 -P 1 -C webrelay -o .1.3.6.1.4.1.30586.10.1.0 -w 80 -c 90
SNMP OK - 76.7 | iso.3.6.1.4.1.30586.10.1.0=76.7
I guess I'm just new to this, as it seems to a normal thing to do w/ snmp requests.
Anyways, now onto creating the command & service.
Any suggestions based off of what i provided?
Thanks.
Re: Help with check_snmp to get a temperature sensor...
Posted: Wed Oct 21, 2015 12:30 pm
by hsmith
What version of core are you running? I don't think the commands.cfg file has changed a lot over time, but I want to make sure I am referencing the same one when we set this up.
Re: Help with check_snmp to get a temperature sensor...
Posted: Wed Oct 21, 2015 1:20 pm
by jasonlehman
Using core 4.0.7
Re: Help with check_snmp to get a temperature sensor...
Posted: Wed Oct 21, 2015 1:34 pm
by hsmith
All right so....
Here is a more customized command definition for
check_snmp:
Code: Select all
# 'check_snmp' command definition
define command{
command_name check_snmp
command_line $USER1$/check_snmp -H $HOSTADDRESS$ -p 161 $ARG1$
}
So we could write up a service that looks something like this:
Code: Select all
define service{
host_name yourhostname
service_description description here. temperature check or something.
check_command check_snmp!-P 1 -C webrelay -o .1.3.6.1.4.1.30586.10.1.0 -w 80 -c 90
max_check_attempts 5
check_interval 1
retry_interval 1
check_period 24x7
contacts yourcontact
notification_interval 30
notification_period 24x7
}
It's kind of messy, could be cleaned up with more $ARGx$'s, but hopefully you get the idea. In the check_command service definition !'s separate the arguments.
I also have not tested this as I do not have the device here
but it should be pretty close to what you need.
This is a good read:
https://assets.nagios.com/downloads/nag ... ml#service
Re: Help with check_snmp to get a temperature sensor...
Posted: Wed Oct 21, 2015 2:37 pm
by jasonlehman
Thank you, it is working.
I haven't tested/triggered high heat on the sensor yet, to see if the warnings/alerts work.
That wasn't my concern; just getting it setup was.
Thanks again for helping me to get this to work.
I will also give the website a good read that you recommended.
Jason
Re: Help with check_snmp to get a temperature sensor...
Posted: Wed Oct 21, 2015 2:46 pm
by hsmith
Glad to hear we could help. Feel free to post if you need anything else!
I'll close this topic and mark it resolved.