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I'm setting up a monitoring system for our servers. I installed nagios on a linux box and then I installed nsclient++ (with these instruction http://nagios.sourceforge.net/docs/3_0/monitoring-windows.html) (windows server 2008 r2). I thought it was easy but nsclient++ doesn't communicate with my nagios box. All services are down. Nsclient'log is this but I can't figure out what's wrong. enter image description here

Launching nsclient from the console doesn't give me any error so it seems it ok.

UPDATE: I found 1 error due to Rackspace networking and the firewall. Now if I run manually

/usr/lib/nagios/plugins/check_nt -H IP -p 12489 -v UPTIME

it works fine, I set the same IP used here in the windows.cfg config file but in Nagios everything is still not working

Have you any idea?

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  • You can make sure that nsclient is listening and waiting for requests. Use netstat -anb.
    – Khaled
    Jan 25, 2011 at 6:31
  • @Khaled Yes it's listening, but on my remote linux I don't see it open. I'm now with rackspace support to understand why Jan 25, 2011 at 7:50
  • Ok port is open, firewall is down. Still not working Jan 25, 2011 at 8:33

2 Answers 2

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If the command works fine from command line check commands.cfg at nagios server for the check_nt UPTIME service and replicate it to your service command:

define command{
    command_name    check_nt_uptime
    command_line    $USER1$/check_nt -H $HOSTADDRESS$ -p 12489 -v UPTIME
    }

--

define service{
    use                             windows.template
    host_name                       hostname
    service_description             Uptime
    check_command                   check_nt_uptime
    }

Regards.

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  • It works!!! I copied the windows.cfg and commands.cfg from the debian templates, I suppose they are broken with my config! Jan 25, 2011 at 15:21
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Instead of using the "Log viewer". Id recomend running nsclient++ in "/test mode" as that will also enable debug log.

So try the following:

nsclient++ /stop
nsclient++ /test
...
... (run commands from nagios, ans see where what happens...)
...
exit
nsclient++ /start

In most cases though this is related to the built-in firewall which many people forget to configure.

1
  • See the update on my question I got some news Jan 25, 2011 at 12:29

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