Monitoring Distributed Resource

[Andreas M. Iwanowski]

Thank you Chris!

This sounds great

So as I understand, if I define a parent<->child relationship between the VPN services (or core gateways) on the parent side and the remote gateway on the other side, the remote gateway will be checked (and we notified) as long as one core gateway is online?
And since the remote hosts all depend on the remote gateway, they should inherit that behavior. Correct?

I don't think the check_cluster would work since the host services are checked via nrpe running custom php monitoring scripts on the machines, but I'll check it out tomorrow at the office anyways.

-Andy

Mit freundlichen Gr??en / With best regards

Andreas Iwanowski - IT Administrator / Software Developer
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-----Original Message-----
From: Chris Beattie [mailto:cbeattie at geninfo.com]
Sent: Wednesday, August 08, 2012 3:12 PM
To: nagios-users at lists.sourceforge.net
Subject: Re: [Nagios-users] Monitoring Distributed Resource

On 8/7/2012 8:33 AM, Andreas M. Iwanowski wrote:
> I.e. if the primary gateway goes down and the standby takes over, I
> would still like to be notified about host troubles behind the VPN.
> Only if both were to be down nagios should stop sending messages.

Would setting parent/child relationships, and maybe using the check_cluster plugin help you?

I have two network core switches.  Every physical host on the network has both of those two core switches defined as a parent in Nagios.
Nagios will continue to check everything as long as at least one of those two switches is up.

I did something similar with check_cluster.  To monitor a VMware ESX cluster comprising three ESX hosts, I defined a Nagios host for each ESX host.  There is another Nagios host to represent the cluster whose host check is a check_cluster command.  Every guest has the cluster defined as its parent.  If one ESX host goes down, the cluster goes into a warning state.  If two or more ESX hosts go down, the cluster enters a critical state.

The guests may all have migrated onto the still-running ESX host and might still be up, but the monitoring of individual guests can take a back seat at that point.

--
-Chris

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Thank you.


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Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
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