For the security class I’m teaching we recently had a box to pwn. Problem is, they would sometimes get the address wrong and crash the virtual system. I probably would have just distributed the vdi, but not all of them have machines robust enough to run a vm, so I had to set something up.
“This is how I got host networking for VirtualBox and have it setup to use bridging on FedoraCore 6 host. This allows for two way traffic between the host and the guest. You will need bridge-utils and uml-utilities. The first step is to configure the host with a bridge and a tap device. With this only the bridge will get an IP address and not the ethX nor the tapX device.”
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