virtualbox.org

From my understanding, every pc have a different MAC address/machine id and a site owner can know if the same pc is browsing the same site again.

I am wondering if I have a virtualbox inside my win 7 desktop, when I use virtualbox to access the internet, does it have a new MAC address/machine id that is different from the normal MAC address/machine id (when using win 7 desktop to access the internet)?

Thanks

Depends on your VirtualBox network mode.

In 'bridged' mode - new virtual MAC address is exposed. In 'NAT' mode (default), the outer world sees your host's MAC address, so guest's MAC is stealth.

In all modes Vbox creates new new MAC address, but in 'NAT' mode it is stealth.

Also when importing/cloning VM, VBox recommends you to change MAC.

MAC address cannot be traced. Once you go on the internet, they are irrelevant and the information is stripped from the network stream. A website can therefore never obtain your MAC address unless through some client side javascript that posts it back to the server. Nothing can stop that, except preventing the script to run in the first place.

Sasquatch wrote:MAC address cannot be traced. Once you go on the internet, they are irrelevant and the information is stripped from the network stream. A website can therefore never obtain your MAC address unless through some client side javascript that posts it back to the server. Nothing can stop that, except preventing the script to run in the first place.

Is there anyway to detect if the script is active in a website or does the script work "silently" in the website?

How do you prevent the script from running?

So that means if one office has 10 computers, the website does not know which computer visited its website? If 2 different computers in the same office visited the same website, the website will assume that there are 2 visits from the same person?

These are not VirtualBox questions.

While it's possible for some kind of machine signature to be calculated and transmitted on any network (e.g. Windows activation does exactly that), most websites track users via the use of cookies.