4.6.1 Physical preconditions

The physical preconditions to be met in configuring a secure system are described below.

• The hardware running the system, the firewall, the servers, and the internal network should be installed within a server area that is physically isolated from the outside.

• Appropriate controls such as entry and exit management should be applied to prevent non-authorized users from entering the server area.

• No hardware or software that is not necessary for running the system should be allowed to be brought into the server area.

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