Permission Denied on check_nt

[Paul Broadwith]

Hi,

 

Hoping somebody can help me out here.

 

I've installed Nagios on CentOS using the following page
http://www.maxsworld.org/index.php/how-tos/nagios and been through the
permissions sections here
http://nagios.sourceforge.net/docs/2_0/commandfile.html

 

I have two problems now - the first one is with the check_nt command.

 

I have installed the NS Client on the server. The server has an ISA
Firewall on there and I've allowed the connections and am monitoring the
traffic. I've configured the host, services and everything else and they
show up in the Nagios web interface fine. However whenever a check is
done, I get the error Permission Denied in the web interface. No actual
traffic is sent to the server and Nagios is not trying to connect to the
NS Client on the server (Firewall logs show no connections). If I try to
run the command from the linux server command line I get the results
back. I've also done an 'su nagios' and run the command from that user
account and it again works fine. I have a check setup for the local
Nagios server to monitor it's disk space and that is fine. I'm assuming
it's a permissions problem with the plugin or Nagios or something, but
don't know where.

 

Here is the check_nt entry from commands.cfg:

 

define command{

        command_name    check_nt

        command_line    $USER1$/check_nt -H $HOSTADDRESS$ -p 12489 -v
$ARG1$ $ARG2$

        }

 

And one of the service entries:

 

 

define service{

        host_name               MYHOST

        use                     server-service-template

        service_description     Drive Space - C:

        check_command           check_nt!USEDDISKSPACE!-l c -w 80 -c 90

        }

 

And the server-service-template entry is:

 

define service {

        name                            server-service-template

 

        contact_groups                  client_monitoring

 

        is_volatile                     0

        max_check_attempts              3

        normal_check_interval           1

        retry_check_interval            1

 

        active_checks_enabled           1

        passive_checks_enabled          1

        check_period                    24x7

 

# leave this unless you know what you are doing

        parallelize_check               1

        obsess_over_service             0

        check_freshness                 0

#       freshness_threshold

 

        flap_detection_enabled          0

        event_handler_enabled           0

#       low_flap_threshold

#       high_flap_threshold

 

        process_perf_data               1

 

        retain_status_information       1

        retain_nonstatus_information    1

 

        notifications_enabled           1

        notification_interval           30

        notification_period             24x7

# w = send notifications on a WARNING state

# u = send notifications on an UNKNOWN state

# c = send notifications on a CRITICAL state

# r = send notifications on recoveries (OK state)

# f = send notifications when the service starts and stops flapping

# n (none) as an option, no service notifications will be sent out

        notification_options            w,u,c,r

 

        contact_groups                  client_monitoring

 

        register                        0

}

 

(as you can see I like to have all of the entries in there, even the
ones that have the same default as I want)

 

The second problem I have is when I try to change the scheduled time for
the next check on a service - the error I get is:

 

Error: Could not stat() command file '/var/log/nagios/rw/nagios.cmd'!

The external command file may be missing, Nagios may not be running,
and/or Nagios may not be checking external commands. 

An error occurred while attempting to commit your command for
processing.

 

Any suggestions to this?

 

I'm liking Nagios, but these problems are stopping me from using it any
further.

 

Kind regards,

 

Paul Broadwith MBCS

Blue Ivy Ltd - Microsoft Small Business Specialist, UK Partner Qualified
for 2007

 

Tel.: 0800 612 0601

Windows Messenger: paul.broadwith at blueivy.co.uk
<mailto:paul.broadwith at blueivy.co.uk> 

Web: http://www.blueivy.co.uk <http://www.blueivy.co.uk> 

Blog: http://blog.blueivy.co.uk <http://blog.blueivy.co.uk> 

 



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