Check_http

[Jonathan Angliss]

On 10/20/10 01:08, Rajesh Kumar wrote:
> Hi All
>                  I have configured Nagios Core in CentOS. I did
> remotehost(retpro) services of cpu, memory, user, ssh and ping also but
> unable to config check_http.
>      How to configure remotehost http (url) and Notification Alert (If
> http down). Pls verify my cfg file in
> /usr/local/nagios/etc/objects/retpro.cfg

Monitoring remote services like HTTP, SSH, and the likes are covered in 
the manual, and there is probably already a sample setup in the default 
configs with CentOS:

   http://nagios.sourceforge.net/docs/3_0/monitoring-publicservices.html

But basically, it'll most likely look something like this:

define service {
	use			generic-service
	host_name		retpro
	service_description	HTTP
	check_command		check_http
}

If you're looking to monitor a specific page loads, you may need to 
create a new command, something like this:

define command {
   command_name		check_http_url
   command_line		$USER1$/check_http -H $HOSTADDRESS$ -u $ARG1$
}

define service {
	{usual service stuff}
	check_command	check_http_url!/testpage.php
}

> define service{
>          use                                 generic-service
>          host_name                       retpro
>          service_description           Root Partition
>          check_command              check_local_disk!20%!10%!/
>          }

As Robert Wolfe pointed out, this command is probably not doing what you 
think it is.  check_local_disk will most likely be doing disk checks 
against the server running nagios, making this a duplicate of a monitor 
you may already have in place.  You will need to use something like 
NRPE, or check_by_ssh to check remote hosts.  Your services for those 
real checks will likely look something like:

define service {
	use			generic-service
	host_name		retpro
	service_description	root partition
	check_command		check_nrpe!check_disk!20!10
}

This assumes a check_nrpe command has been defined.

-- 
Jonathan Angliss


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