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Now what? Use UUID as the Identifier When You Can

With that, the days of using the MAC address as a unique identifier of a computer are gone. Not to mention when it’s running on a virtual machine. Moreover, the MAC address even changes when you are on or off a VPN connection. The MAC address quickly changes every time when your computer connects from a wired network to a wireless network. For example, almost all laptops come with one Ethernet, one Wi-Fi network adapters, and one Bluetooth. Why? Because each computer can easily have multiple MAC addresses from multiple network adapter. The traditional method of leverage the MAC address as the computer’s unique identifier is not going to work anymore.

Suffice to say, it’s a lot complicated than what I initially thought. Lately, I ran into an issue, trying to identify the uniqueness of machines across platforms.