
YuChakTinMichael‘sGIACGCFWProjectAssignment
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Subnets:
TheGIACnetwork issegmentedintothefollowingsubnets:
n Core_Net:thisisthesubnetatwhichtheexternalconnectionsmeettheinternal
connections.
n Public_Services:hostingallthepublicservices,includingWWW,externalemail
andexternalDNS.ItisessentiallyaprotectedDMZ (DemilitarizedZone)which
sitsbetweentheInternetandaninternalnetwork'slineofdefenseunderthe
protectionoffirewalls. ThissegmentalsohousesanIDStodetectintrusion.
n Internal_Clients:hostingall theinhouseenduserdesktops.Thisgroupcan
actuallybefurthersegmentedonanasneededbasis.
n Internal_Admin:hostingdesktopsforthemighty administrators.
n Internal_Dev:hostingtheinhousedeveloperswhoneedtomakechangestothe
Ecommerceapplicationandaccessthecriticaldatabases.
n Internal_Servers:hostingtheinternalservers.
n Critical_Resources:hostingthedatabaseapplication thatistobeaccessedbythe
externalpartnersandsuppliers.
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