What are the right settings/policy for VirtualBox?

I have installed the latest VirtualBox release and, inside it, some OS (see below)… just for a try 88)

Since I want to connect to internet as safe as possible from a virtual environment, I am wondering what are the best Firewall settings/policy for virtualbox.exe in my “host” environment… I mean my “true” PC (where COMODO is installed of course).

Thanks :-TU

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