Monitoring a host behind VPN/Firewall

[Steven Carr]

So 4800 will allow your tests to go stale for 80mins before reporting
them as stale, you might wanna drop that down to just abit more than
when you expect them to update, e.g. if your tests run every 5 mins
then set the staleness to >5<10.

But in passive mode you are never going to get even close to realtime
notification. Like others have suggested, perhaps looks at a more
distributed setup with a poller on the other side of the firewall.

Steve


On 22 October 2012 13:54, Gilberto Ferreira
<gilberto.nunes at selbetti.com.br> wrote:
> Hi
>
> Mark, I check freshness configuration and it's set like that:
>
> Check Freshness         Yes
> Freshness Threshold     4800 seconds
>
>
> Any suggestions???
>
> Thanks
>
> Gilberto Nunes Ferreira
>
>
>
>
>
>
>
> ----- Mensagem original -----
>
> De: "Mark Elsen" <mark.elsen at gmail.com>
> Para: "Nagios Users List" <nagios-users at lists.sourceforge.net>
> Enviadas: Segunda-feira, 22 de Outubro de 2012 10:00:27
> Assunto: Re: [Nagios-users] Monitoring a host behind VPN/Firewall
>
>
>
>
>
>
>
> Hi folks..
>
> I'm trouble here...
> We have a thousand host behind VPN/Firewall.
> For now, we use NC_NET to collect WMI data from server, and send this datas to Nagios server, throught NSCA.
> We do it in passive mode...
> What happen here is that, even host came down, I still see the status ok for services on Nagios panel...
> I'm use FAN, Fully Automatic Nagios here... Using Centreon to configure hosts and services...
>
>
>
>
> Nobody, will gracefully except a few $ for a pint this evening ;
>
> If you use passive mode to acquire WMI data, you must sufficiently debate your freshness
> settings for the passive service defined, and or in this case negate wether you will, per default, go into
> a fault mode ,when nothing is received and the freshness timer is expired.
>
> Otherwise you get in the situation, you describe.
>
> M.
>
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