check_ntp

[Rich West]

This might be obvious to some, but the reason/solution escapes me.

I'm running check_ntp against two hosts, and, although (as the nagios 
user) I can run it successfully from the command line:
./check_ntp -H localhost
NTP OK: Offset 0.000001 secs, jitter 3.797 msec, peer is stratum 1

Nagios itself is complaining that it is getting "No output!".

Thinking that it would be with the way I have it configured in the 
nagios config files, I checked them and they _look_ ok:
In checkcommands.cfg:
define command{
        command_name    checkntp
        command_line    /usr/lib/nagios/plugins/check_ntp -H $HOSTADDRESS$
        }

In services.cfg:
# Service definition
define service{
        use                             generic-service         ; Name 
of service template to use

        host_name                       myhost
        service_description             NTP
        is_volatile                     0
        check_period                    24x7
        max_check_attempts              3
        normal_check_interval           3
        retry_check_interval            1
        contact_groups                  linux-admins
        notification_interval           120
        notification_period             24x7
        notification_options            w,u,c,r
        check_command                   checkntp
        }

Not that NTP is a critical process (I haven't gotten to the point of 
fine tuning the config), but I cannot even get nagios to monitor it.  
Now, Nagios is happily monitoring a bunch of other services, though...

Any ideas as to where to start to debug this?  I would be great to see 
what command it is acutally executing as it might help in the debugging..

-Rich



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