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1:a) network monitoring not as far as i know. u need a monitoring tool/ solarwinds ehealth and the like
1: b) csa afaik can help identify sec vulns and virii(uses). it is part of an ids/ips...

i believe what kr5kernel is alluidng to, is using these tools in your production environment to help identify potential issues and i do note your concern that perhaps it should be your enterprise...