- #Clear alternate mac address drivers#
- #Clear alternate mac address software#
- #Clear alternate mac address windows#
For example, two VMs can't each open the same network socket to you, so even if they are bit-level clones of each other it is possible to tell them apart.
It really depends on what is meant by "persistent".
#Clear alternate mac address software#
Ultimately, I also know that users of my software will deprecate a host and want to replace it with another, but keep continuity of the data associated with it, so there are reasons a UUID might be considered mutable over the long term, but I don't particularly want a host to start considering itself to be unknown and re-register itself for no reason.Īre there any alternative persistent, unique identifiers for a host? I'd like the solution to persist a long time, and certainly across server reboots and software restarts. Many systems like Chef already require unique hostnames.
- There's a cpuid but that's apparently deprecated.
- There's also /var/lib/dbus/machine-id, but that's dependent on dbus.
- They can be cloned like a state file, but in practice they generally aren't because it's such a security problem that it's a mistake not often made.
- The server's SSH host keys may be a candidate.
- Generating a state file and saving it to disk doesn't work because the virtual machine may be cloned, thus duplicating the file.
- A MAC address doesn't work because in some virtualized environments, network interfaces don't have hardware addresses.
- If your home broadband Internet Service Provider (ISP) relies on your network adapter's MAC address for the internet connection, enabling it for your home broadband may cause it to not establish the connection so keep this off for the home connection.I need to be able to repeatably, non-randomly, uniquely identify a server host, which may be arbitrarily virtualized and over which I have no control. You might want to enable it while you are connecting to some public WiFi network, like in a cafe. With MAC address randomization enabled, you can prevent this. Also, a MAC address can be used to track your device as it connects to various Wifi access points. ISPs often use MAC addresses to authenticate client devices. This information can be used to assign your device a static and/or exclusive IP address. Using the MAC value, it is possible to identify the device explicitly. If your wireless hardware does not support this feature, the " Random Hardware Addresses" section will not show up at all in the Settings app.Īs you might be knowing, every network card has a unique hardware address known as the MAC address.
- Turn on the option called "Random Hardware Addresses" and you are done: Set it to "on" or "change daily":.
- Under the WiFi adapter for which you wish to enable this, click the Advanced options link:.
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#Clear alternate mac address windows#
To enable MAC randomization in Windows 10, you need to do the following. While recent devices come with the required features onboard, all old Wi-Fi adapters lack the MAC randomization feature. From four of my Wi-Fi adapters, only one supports this feature.
#Clear alternate mac address drivers#
First of all, to enable random MAC address in Windows 10 for WiFi adapters, you need to have the appropriate support from your wireless hardware radio as well as the right drivers installed.