[Nagiosplug-help] Problem with check_http within nagios

[Werner Flamme]

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DeBattista, Joe [19.05.2011 01:06]:
> Hi,
>      I'm trying to use check_http from within nagios, and I keep getting a status UNKNOWN with "no output returned from plugin".  When I run the commands from the command line on both the client and the nagios server, I seem to get the right output, but not from within nagios itself.
> I'm using nagios version 3.0.6 on a RedhHat Linux server, with the check_http from nagios-plugins version 1.4.13. My nagios client is named cenn, and the nagios server is vx8.  
> 
> When I issue the check_nrpe command from vx8, I get the following:
> /usr/local/nagios/libexec/check_nrpe -H cenn -c check_http
> HTTP OK HTTP/1.1 200 OK - 308 bytes in 0.001 seconds |time=0.000777s;5.000000;10.000000;0.000000 size=308B;;;0
> 
>>From the client, cenn, the command also seems to run ok.
> /usr/local/nagios/libexec/check_http -H 127.0.0.1 -w 5 -c 10
> HTTP OK HTTP/1.1 200 OK - 308 bytes in 0.001 seconds |time=0.000797s;5.000000;10.000000;0.000000 size=308B;;;0

Hi Joe,

do you enter the commands as root or as the user nagios/nrpe are running
under? As root, you may try something like

su - nagios -c "/usr/local/nagios/libexec/check_nrpe -H cenn -c check_http"

(in one line).

Since the command works when executed directly and gives the desired
output, it seems to be a rights problem on the nagios server.

I'm running nagios on SLES, and had to change owner and group of
/var/lib/nagios (and its contents) to nagios.nagios before I was able to
see nice results.

HTH
Werner
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