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From: Mark Sergeant <msergeant@snsonline.net>
Date: Thu, 5 Jan 2006 07:53:49 +1000
To: Kurt Jaeger <lists@complx.LF.net>
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Cc: freebsd-isp@freebsd.org, Oliver Brandmueller <ob@e-Gitt.NET>
Subject: Re: Network Monitoring
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On 05/01/2006, at 1:20 AM, Kurt Jaeger wrote:

> Hi!
>
>> nagios (also in the ports). It's extremely flexible.
>
> We have performance issues with it (approx. 400 systems).
>
> Is this just us or ... ?
>
Nope not just you, 1k hosts and the system was almost unusable on a  
dual amd mp2800, in the end I wrote my own monitoring system running  
from a db backend and achieved the same results as nagios with 1/50th  
the actual load whilst also keeping historical data in a db.

Nagios is great if you need the multitude of host checks  
(ssh,apache,mysql,postgres, etc etc) for a core network, but if  
you're just after something to check host connectivity it may not be  
the right tool for the job.

Cheers,

Mark