Temperature Monitoring of HP Switch

[mehmwt]

Hello,

I am trying to monitor the temperature on HP switch, for this reason i have defined the command and services as follow.

here is the command:

define command {

command_name check_snmp
command_line $USER1$/check_snmp -H 10.176.64.1 -o iso.3.6.1.2.1.99.1.1.1.4.25
}


here is the service:

define service {
use generic-service ; Inherit default values from a template
host_name oswitch00
service_description Temp
check_command check_snmp
}


but on my nagios core interface i have error:

(No output on stdout) stderr:

Moreover, i used this command to see check_snmp works manually or not:

./check_snmp -H 10.176.64.1 -C public -P 2c -o iso.3.6.1.2.1.99.1.1.1.4.25

but this gives me segmentation fault (core Dumped)

i am using nagios core version Nagios Core 4.4.13

Thanks

[ssunga]

Hey there, @mehmwt!

Let's walk through some steps together.

Step 1: SNMP Configuration Check
Make sure SNMP is enabled on your HP switch and the community string "public" has the correct permissions.

Step 2: Reinstall `check_snmp` Plugin
Reinstall the plugin to ensure it's not corrupted:

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sudo apt-get install --reinstall nagios-plugins-snmp

or on Centos:

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sudo yum reinstall nagios-plugins-snmp

Step 3: SNMP Tool Validation
Let's see if we can fetch data from the switch using snmpwalk:

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snmpwalk -v2c -c public 10.176.64.1 iso.3.6.1.2.1.99.1.1.1.4.25

If you get a response here, we're on the right track.

Step 4: Update Command Definition
Try updating the Nagios command definition to include the community string and SNMP version:

Code: Select all

define command {
    command_name check_snmp
    command_line $USER1$/check_snmp -H $HOSTADDRESS$ -C public -P 2c -o $ARG1$
}

Step 5: Adjust Service Definition
Update your service definition to pass the OID as an argument:

Code: Select all

define service {
    use generic-service
    host_name oswitch00
    service_description Temp
    check_command check_snmp!iso.3.6.1.2.1.99.1.1.1.4.25
}

Step 6: Manual Command Test
Before we apply changes in Nagios, let's test the command manually to make sure it's working:

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/usr/local/nagios/libexec/check_snmp -H 10.176.64.1 -C public -P 2c -o iso.3.6.1.2.1.99.1.1.1.4.25

Step 7: Enable Debugging
Enable debugging in Nagios by adding to `nagios.cfg`:

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debug_level=32
debug_verbosity=2

Restart Nagios:

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sudo service nagios restart

You can also do

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tail -f /usr/local/nagios/var/nagios.log

To observe nagios logs.

Try these steps and let us know if it resolves the issue!