monitor hosts behind firewalls

[mail at catsnest.co.uk]

On Mon, Feb 6, 2012 at 2:57 AM, doug <goldcup at ix.netcom.com> wrote:

> Hi Everyone,
>
> I currently monitor various hosts behind firewalls, windows servers,
> linux, and some workstations. I have them all setup as active hosts that
> nagios pings to indicate they are up. Since they are all behind
> firewalls all I'm doing for host status is in fact just pinging the
> firewall. I'm a little confused about using passive checks and not sure
> if this is the right way to go about doing what I want. I monitor the
> firewall and know that is up, and for all those hosts behind I'm just
> pinging the fw, no need to do that. I use nrpe or nsclient to monitor
> the services and really that's all I need. Can someone point me in the
> right direction so I can stop the active host status pings for all hosts
> behind the firewalls.
>
>

If you dont want to open up ping on the firewalls you could ether have a
dummy hosts check (a check that just returns 0) or have nrpe as the hosts
check (eg a check that just checks if nrpe is responding, again an nrpe
check that just returns 0 )


client nrpe command like this
command[check_nrpe_alive]=/patch/script/that/returns.0.sh


Nagios command:

define command{
        command_name    check_nrpe_alive
        command_line    $USER1$/check_nrpe -H $HOSTADDRESS$ -C
check_nrpe_alive
        }

define host{
        name            behind_firewall
        use             generic-host
        hostgroups      +behind_firewall
        register        0
}

then a use clause in your host config of behind_firewall

Ritchie
--
<-- http://23.me.uk/2 -->
<--Time flies like an arrow; fruit flies like a banana.  -->



> Thanks
> Doug
>
>
>
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