<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> <META NAME="Generator" CONTENT="MS Exchange Server version 6.0.4418.33"> <TITLE>Hostgroup / host config for multiple data centers</TITLE> </HEAD> <BODY>  I need some advice on using a single Nagios server monitoring different cities and relay racks in those cities. Example: Torrance Pasadena Van Nuys | | | RR10.01,RR10.02 RR20.01,RR20.02 RR30.01, RR30.02 etc | | | Customers in each RR Customers in each RR Customers in each RR Is there a way to setup a master hostgroup for each city, that has A master hostgroup containing the Relay Racks in that city. Then Below that are the customers per Relay Rack. Right now, I just define hostgroups which right now are simply the Relay racks. But I want to be able to "click down" a hierarchy of City, then Relay Racks per city, then get the client detail. Like if you click "Service Overview for all host groups" can you get Simply "Torrance" and have it pull up the Relay Racks in Torrance. Then you can click on a specific Relay Rack to get customer detail? Would appreciate learning how larger facilities are doing the above... Thank you. richg </BODY> </HTML>