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NMIS/OMK applications expect DNS to work. Managing individual /etc/hosts files does not scale. opHA is one module in particular where this is critical. If the customer does not have a local DNS server for internal hosts consider running BIND on the NMIS master Primary server, other NMIS/OMK servers can use it as a name server. This is not difficult to do and will save a lot of troubleshooting time moving forward.
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