Stoney McFried
Well-Known Member
Thanks for clarifying that for me. You learn something new every day!
This is what's known as a jailed environment, and while it can work, if the virtual machine is connected to the internal network there's nothing to stop it from infecting the host. Also any data used on the virtual machine is still saved on the actual disk, actually in a format which makes it easier to extract and transport (this was its true purpose). For security's sake you're really better off saving everything to an encrypted flash disk that you could easily destroy.
This generally is not the case. While you can change your internal IP address at leisure it's becoming more and more difficult to change your physical IP, which is what actually connects to websites. Most modems these days all come pre-equipped with a DHCP router and forcing an IP address change on the computer doesn't reset the IP the router itself is holding.
Now you could reset the router but that in itself isn't enough to force the change either. Often enough your IP address is actually bound to the MAC address (which isn't so easily changed) and will only renew if it's been unused for a predetermined period of time that only the ISP would know. This could be anywhere from a matter of hours to weeks, and some customers are even issued static IPs which never change. So the only way to truly know you've changed your IP is to unplug the modem for quite a while, but until you know what the length of time is, you're stuck in a one step forward two step back process.