1.9 Flashcards
virtualization
one computer running independent os at the same time
host based virtualization
normal desktop plus other vms
stand alone server
no core os
hypervisor
virtual machine manager
manages virtual platform and guest os
may require a cpu that support virtualization
resources requirments
cpu support: intel (VT) AMD (AMD-V)
memory must be above and beyond os requirments
disk space: each os has its own image
network: configurable virtual switch
host security
own the host, own the vms
failure of hardware on host causes all vms to fail
high cpu utilization
hypervisor is the sweet spot for bad guys
vm escaping
malware recognizes it is on a vm
malware compromises the hypervisor
malware jumps to other guest os within host
guest os have same security concerns as regular machines
self contained vms downloaded from the internet may be created from bad guys wanting to access your system. you have no idea what is running on them.