NSCA can help you out for centralized monitoring by submitting passive checks from different nagios servers to a central one, but i have never worked on tweaking/aggregating those passive checks and apply custom rules to get a single passive check out of them (but given the flexibility of nagios/nsca, i guess there will be a hacky yet smart way for doing this). Otherwise you can definitely use nrpe to get those remote checks aggregated into your central server and then use your custom script to implement your own logic. <div class="gmail_quote">On Thu, Jun 9, 2011 at 4:01 AM, Antonio <<a href="mailto:potxoka@gmail.com">potxoka@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"> Hello I have various nagios at multiple geographic sites, to get points of view from different sites. I want to join for example values of the 5 nagios and if 80% of equipment has failed, send error message, apart from having a central monitoring site. I mean by that, because a nagios alarm may give notice (the routing table is wrong) and give a false positive. Was to avoid this. Apart from the warning center could these decentralized (if it's the same routes)?. I have seen a similar addon or some time, but now can not find it :-(. anyone know how I can do this? thanks. Greetings ------------------------------------------------------------------------------ EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. <a href="http://p.sf.net/sfu/ephox-dev2dev" target="_blank">http://p.sf.net/sfu/ephox-dev2dev</a> _______________________________________________ Nagios-users mailing list <a href="mailto:Nagios-users@lists.sourceforge.net">Nagios-users@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/nagios-users" target="_blank">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null</blockquote></div>