[Nagiosplug-help] (Return code of 127 is out of bounds - plugin may be missing)

Andy Shellam andy-lists at networkmail.eu
Fri Oct 10 18:55:43 CEST 2008

Hi Grant,

It's possible it may be the check_nrpe plugin on the Nagios host that is 
having trouble - i.e. what are the permissions on 
/usr/local/nagios/libexec/check_nrpe (replace /usr/local/nagios with the 
actual path to the plugins on your Nagios server.)

 From my own experience, when the error is on the NRPE-host side of 
things, Nagios returns the status as "unknown."


Grant Lowe wrote:
> Hi All,
> Since I've had such good luck with you guys, I thought I would ask for some more help :-).  Anyway, I'm getting this message 
> "(Return code of 127 is out of bounds - plugin may be missing)."  The plugins aren't missing:
> myhost /tmp> ls -l /opt/csw/libexec/nagios-plugins/check_swap /opt/csw/libexec/nagios-plugins/check_mailq
> -rwxr-xr-x   1 root     bin        20371 Oct  9 12:46 /opt/csw/libexec/nagios-plugins/check_mailq*
> -rwxr-xr-x   1 root     bin        61364 Jan  4  2008 /opt/csw/libexec/nagios-plugins/check_swap*
> myhost /tmp>
> I've searched google and found similar problems and their solutions, but nothing seems to work.  This is rather puzzling because, if I run the command from the command line from the Nagios host, I get good information back from the NRPE host.  But I get this error in the GUI.  I get this error for two different commands.  Here are the commands I'm checking in nrpe.cfg
> command[check_swap]=/opt/csw/libexec/nagios-plugins/check_swap -w 85 -c 75
> command[check_mailq]= /opt/csw/libexec/nagios-plugins/check_mailq -w 90 -c 95
> Any and all help is appreciated.
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