Return Code 255 Out of Bounds from Nagios but not CMD line

[lmiltchev]

@brayshawuk

Can you run the command successfully from the CLI as nagios user?

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su - nagios -c '/usr/local/nagios/libexec/check_nrpe -H <remote_ip> -p 5666 -c check_xvda1'

[brayshawuk]

Thanks for quick response, however:

nagios@server:/usr/local/nagios/libexec$ ./check_nrpe -H <remote_ip> -p 5666 -c check_xvda1
DISK OK - free space: / 27129 MB (36% inode=10%);| /=46359MB;68940;72770;0;76601

yup

for info, I followed the same procedure to install nrpe on another remote system, added the same adv service using nconf - no issues

tomorrow I will turn up debugging and re-run the setup commands on this remote server

[eloyd]

The specific command that @lmiltchev requested you test was:

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su - nagios -c '/usr/local/nagios/libexec/check_nrpe -H <remote_ip> -p 5666 -c check_xvda1'

Have you tested this specific command in its entirety, including the "su - nagios" part and the quotes?

[lmiltchev]

brayshawuk, can you also run the following command and show us the output?

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grep nag /etc/group

[brayshawuk]

su - nagios -c '/usr/local/nagios/libexec/check_nrpe -H <remote_ip> -p 5666 -c check_xvda1'
DISK OK - free space: / 27176 MB (36% inode=10%);| /=46312MB;68940;72770;0;76601


Ok - so I've been able to resolve this issue

here's how, but not sure which part resolved it

re-installed nrpe on the remote system, and setup my command aliases
verified all settings against working server - nothing different
recreated the host in nconf - exactly the same information (screenshot vs web config) - nothing different, they are identical!
generated config files and scheduled next check
- and it worked

will see how I get on once it's checked a few times, thanks for all your help - much appreciated

[eloyd]

I'm willing to bet that this solved it:

re-installed nrpe on the remote system

[tmcdonald]

We'll keep this thread open for a few days in case you run into problems.

[daave]

In case this helps anyone else who lands here...

I was scratching my head on this one. I had a case similar to the OP, but a little different. Everything seemed to be in place, but I was getting the "Return Code 255 Out of Bounds" error in Nagios even though everything worked okay if I ran from command line.

My XML file looked something like this:

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<TopLevel>
  [Other stuff here]
  <Success>true</Success>
</topLevel>

I was testing for Success==true, and my command line looked like this:

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define command {
	command_name	web_diag_status
	command_line	$USER1$/check_http_xpath.pl -S -k -H $HOSTADDRESS$ -u /Path/To/Web/Status -c '/Status/Success==true'
}

...but no go.

What I eventually figured out was that I was wanting to test for the STRING true, not the BOOLEAN. I updated my command to add double quotes around "true" like so:

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define command {
	command_name	web_diag_status
	command_line	$USER1$/check_http_xpath.pl -S -k -H $HOSTADDRESS$ -u /Path/To/Web/Status -c '/Status/Success=="true"'
}

...and then it worked OK.

[tmcdonald]

Thanks for the post, but this topic is over 3 years old at this point so I will be locking it up.