title: Get Website Visitor MAC Address of the active lancard?
body: <p>My requirement is i have a portion of the site that should allow user to access from only one system. He may used different IP's and different by if the system is same he should be able to get the access. My site is in PHP. Doing some R&amp;D i found so JS which helps to get the MAC address if the visitor is using IE. My case is i cannot restrict user to use IE. He may use any browser. Is there any way to get the MAC address. If not possible how should i restrict the same user from accessing content from different computers.</p>