Nagios Support Forum

jdalrymple wrote:When you add custom plugins there is no magic integration with the wizards. Furthermore the switch and router wizard has some magic of its own, and as such it is exclusively used for monitoring port metrics, nothing else.

You will have to manually create your service in the CCM. It's all in the document you referenced earlier:

https://assets.nagios.com/downloads/nag ... ios-XI.pdf

ssax wrote:Here is what I do:

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cd /usr/local/nagios/libexec
./check_nwc_health -h

That will give you the options that it supports.

Then create the command like this:

Command Name: check_nwc_health
Command Line:

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$USER1$/check_nwc_health --hostname $HOSTADDRESS$ --mode $ARG1$ --community '$ARG2$' --warning $ARG3$ --critical $ARG4$ $ARG5$

You can add anything else you need to the command as well but that seems to be the basic settings.

Now under your service set:

$ARG1$ = cpu-load
$ARG2$ = snmp community
$ARG3$ = warning threshold
$ARG4$ = critical threshold
$ARG5$ = you can pass in any other arguments that you need here that differ from the basic command.

You best option is to test from the command line first to make sure it's working the way you want it to:

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cd /usr/local/nagios/libexec
./check_nwc_health --hostname 192.168.4.44 --mode cpu-load --community 'mycommunity' --warning 60 --critical 80

Testing check from command line...

COMMAND: /usr/local/nagios/libexec/check_nwc_health --hostname DartSW01 --mode cpu-load --community 'test123' --warning 60 --critical 80 
OUTPUT: UNKNOWN - cannot write status dir /var/tmp/check_nwc_health! check your filesystem (permissions/usage/integrity) and disk devices, cannot write status file /var/tmp/check_nwc_health/DartSW01_cpu-load_protect_10_usage0b3645a1f7f1dcac467cb0cd60a7d6f0! check your filesystem (permissions/usage/integrity) and disk devices, cpu 1 usage (5 min avg.) is 6.00% | 'cpu_1_usage'=6%;60;80;0;100

Does this mean that I have to create this service to every single device as I want to monitor the CPU on all devices ?

I have tried all of these steps but when I go to create a New Service and press the Test Command button, this is what I get

[root@lisl-ngos-01-pv tmp]# ls -l
total 32
drwxr-xr-x. 2 nagios users 4096 Aug  6 16:01 check_nwc_health

ssax wrote:Try running this command and try the test command again.

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rm -rf /var/tmp/check_nwc_health*

The files would have been created by root when testing, sorry, I should have said to su - nagios before testing from the command line.

UNKNOWN - cannot write status dir /var/tmp/check_nwc_health! check your filesystem (permissions/usage/integrity) and disk devices, cannot write status file /var/tmp/check_nwc_health/10.1.2.243_cpu-load_protect_10_usage0b3645a1f7f1dcac467cb0cd60a7d6f0! che

if you had some specific different needs from one Cisco device to the other, say like you wanted to alert every 5 minutes for one of them but only every 30 minutes for another.

jdalrymple wrote:Repeat what ssax said earlier... `rm -Rf /var/tmp/check_nwc_health*` At this point your check result is owned by apache so the nagios user cannot write it. Once the Nagios user is in control all will be good.

Also, let's have a howto on how to NOT do more work than necessary. snapon_admin is right, bulk mod can be great. In this case though having more than 1 service is just silly.

Note that when you are in CCM creating or modifying your service, and you click the "manage hosts" button you have the option to add more than one host. Unfortunately the wizard way of doing things obfuscates some of the better and more elegant ways of service handling. There is no good reason to have more than 1 service defined on your system with all the same object definitions and only a different hostname. Hostname doesn't come into the check directly, it comes via macro $HOSTADDRESS$.

That's my long winded way of saying it's quite likely that you don't need more than 1 service. The only reason to have more than 1 would be if you had some specific different needs from one Cisco device to the other, say like you wanted to alert every 5 minutes for one of them but only every 30 minutes for another.

Make sense?

vijilants wrote:Are you sating to give the service say a global name like router CPUand assign more than one host to it ?

snapon_admin wrote:I can tell you that we use this one for ASA devices: https://exchange.nagios.org/directory/P ... EM/details .