[Nagiosplug-help] check_url.pl plugin

[Philip Marcus]

On Mon, May 18, 2009 at 10:36 AM, Evans Plummer <evans.plummer at usis.com>wrote:

>  Philip
>
>     Thanks very much, that helped!  I have been frustrated for a while
> trying to figure this out.  I was not aware that the nagios -v check
> actually identified your problem.  That is a huge help.
>

You are welcome!


>
>
>     So each 3rd party plugin you choose to use must be defined in the
> command.cfg to operate properly?  I assume that all the standard nagios
> plugins are already defined?
>


Many come predefined in the commands.cfg, although lots do not.
Also, if you use the predefined command in different ways, you may need to
define additional commands.

For instance I use the check_http command to verify the age of my SSL
certificates.
I have defined the following in my commands.cfg:
# check SSL certificate age
define command{
        command_name    check_ssl_cert
        command_line    $USER1$/check_http -S -I $HOSTADDRESS$ -C $ARG1$
        }


Good luck with Nagios!

-Philip


>
>
>     Thanks again for you assistance!
>
> Van
>
>
>
>
> On Mon, 2009-05-18 at 09:14 -0700, Philip Marcus wrote:
>
> Hi Van,
>
> Looks like it may be a type error:
>
> in your service definition, you use the check command called:
> check_url.pl
>
> In your command definition, you have named the command:
> check_url     ### without the .pl
>
> Also, when before starting nagios, you can have it run a configuration
> check with something like:
>
> /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
>
> That should alert you to the config option which is failing.
> It should say something like, undefined check_command on line XXX of
> services.cfg
>
> Hope that helps,
>
> -Philip
>
>
>
>  On Mon, May 18, 2009 at 7:16 AM, Evans Plummer <evans.plummer at usis.com>
> wrote:
>
>  Morning,
>
>     I am attempting to use the above referenced plugin without success.  I
> can execute it from a command line and it works fine, when I add it to the
> cfg file it does not.  I get the "Running configuration check... CONFIG
> ERROR!  Restart aborted.  Check your Nagios configuration." error.  Here is
> the syntax I am using:
>
>     define service{
>         use                             generic-service
>         host_name                  somehost
>         service_description      URL
>         check_command         check_url.pl!URL!1
>         max_check_attempts   5
>         normal_check_interval  5
>         retry_check_interval     3
>         check_period               24x7
>         notification_interval       0
>         notification_period        24x7
>         notification_options      c,r
>         contact_groups           some group
>         }
>
>     I have defined this info in the command.cfg file, I assume this must be
> done for all added check commands?  Is this true?
>
>     # 'check_url command' definition
> define command{
>         command_name    check_url
>         command_line    $USER1$/check_url.pl $HOSTADDRESS$ $ARG1$ $ARG2$
>         }
>
>         Through trail and error I have remmed out all lines in the "define
> service" section 1 at a time and restart the Nagios service and have
> identified the "service_description" line as being the problem.  That seem
> very strange to me since it appears to only be a name.  Never the less, I
> obviously have some syntax error preventing this from operating properly.
> Thanks for any assistance!
>
> Van
>
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> unlimited royalty-free distribution of the report engine
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