Nagios Support Forum

mcapra wrote:Probably, though we don't have such a system to test against unfortunately.

Here's our documents for Nagios XI regarding this topic. The steps for the first 4 pages should still be relevant even though this is a Nagios Core machine:
https://assets.nagios.com/downloads/nag ... ng_SSH.pdf

Yes, the document is relevant for establishing connection between two servers, but I assume HP iLO has it's own Linux distribution or different sshd server.

After I run ssh-copy-id, this error is printed out:
/usr/bin/ssh-copy-id:ERROR: No identities found

I also tried to upload base64 certificate by iLO website but it doesn't accept it?
Can you consider this option as well as a solution for connection with check_by_ssh and getting information back ?

On your Core system, did you login as the nagios and run ssh-keygen to generate the public key that the ssh-copy-id is looking for?
If the .pub file isn't setup using the ssh-keygen util, that could cause the error you are having.

Instead of using check_by_ssh I tried to get check_ilo2_health working, but I have an error like at the end:

My current configuration:

define host{
use template
host_name host
address 192.168.0.1
contact_group admins
_ILO_ADDRESS 192.168.0.2
register 1
}

define service{
use template
host_name host
service_description check_ilo2_health
check_command check_ilo2_health!-c -3
}

Result:

State: CRITICAL
Status Information: ( Service check did not exit properly )

Thanks in advance.

Can you post how the check_ilo2_health command is defined in the commands,cfg file?
Can you run the following command and post the output so we can see what the error is? Fill in the correct username, password, and IP address for your device and adjust the path if the plugin is installed in a different folder.

When you installed the plugin, did you install the required perl modules?
Take a look at the exchange site for installing the required modules.
https://exchange.nagios.org/directory/P ... th/details

define command {
command_name check_ilo2_health
command_line /usr/local/nagios/libecex/check_ilo2_health.pl -u $USER1$ -p $USER2$ -H xxx.xxx.xxx.xxx -c -3
}

After running command in the command line I get:
ILO_HEALTH_OK ... and all of the parameters of the hardware.

Yes, Perl modules are installed.

The check_ilo2_health command should be defined like the example below, it that how it is setup? Is the $USER1$ and $USER2$ macros setup in the resource.cfg file and are they correct to login to the device with the check?

Yes, it is as in the example and Macros are set up in the resource.cfg

The output still is:
Service check did not exit properly.

I would have to see the check_ilo2_health.pl script to be sure but the error could be that the Nagios daemon is trying to embed the script and that is causing the error.
Edit the check_ilo2_health.pl script and change the following line from to Save the changes and see if that fixes the issue.
Also, verify that the plugin is readable and executable by the nagios user account.

I tried these options, but they didn't solve the issue.
Can you write me what permission should be set up? I also have SELinux enabled.

Disable selinux for sure, sometimes nagios has issues with that running.
To set the permissions, go to the folder the plugin is installed at and run the following. Let us know how it works.