basic bro health monitor

scott campbell scampbell at
Mon Oct 6 17:18:02 PDT 2003

I discovered this weekend that it would be nice to be made aware of many 
of the following situations: high cpu load, large memory footprint, 
unusually large connections/minute recorded, or a large number of 
drops/minute activated in a running bro.

Having bro alert on this information can give us a better idea of when 
unusual (as in hostile) things are happening to the network.

This is a basic outline for a monitor script - it is a bit rough about 
the edges, but it seems to do the job.  Making additions to the script 
should be trivial.

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