I need to calculate a machine id for computers running MacOS, but I don't know where to retrieve the informations - stuff like HDD serial numbers etc.The main requirement for my particular application is that the user mustn't be able to spoof it.Before you start laughing, I know that's far fetched, but at the very least, the spoofing method must require a reboot. Sep 14, 2020 A MAC (Media Access Control) address is a number that identifies the network adapter(s) installed on your computer. The address is composed of up to 6 pairs of characters, separated by colons. You may need to provide your MAC address to a router in order to successfully connect to a network.
Determining a Machine's HOST ID All PTC FLEX-enabled products use the machine's network card Physical (or MAC) Address for license configuration purposes. This address is a unique, permanent ID affixed to all network cards and recognized on Ethernet based networks. On Mac OS X and Windows systems, if your computer has Ethernet, the Machine ID is based on your hardware Ethernet MAC address. Therefore you should not have to re-register your plug-ins if you update your operating system or reformat your hard drive. The 'machine-id' parameter is added from RHEL 7.1 to identify the machine in the network. Therefor this parameter must be unique. But when user clone the virtual machine that is installed RHEL 7.1, the cloned virtual machine's 'machine-id' is not changed, and some virtual machine may have the same 'machine-id'.
What is machine-id
– The /etc/machine-id file contains the unique machine ID of the local system that is set during installation. The machine ID is a single newline-terminated, hexadecimal, 32-character, lowercase machine ID string. When decoded from hexadecimal, this corresponds to a 16-byte/128-bit string.
– The “machine-id” parameter is added from RHEL 7.1 to identify the machine in the network. Therefore this parameter must be unique.
– But when user clone the virtual machine that is installed RHEL 7.1, the cloned virtual machine’s “machine-id” is not changed, and some virtual machine may have the same “machine-id”.
– The user should change the “machine-id” of the cloned virtual machine for the server to be uniquely identifiable over the network.
– The machine-id is written into the file /etc/machine-id
Changing the machine-id
Machine Id Vs Mac Address
1. Clear the original “machine-id”
– The “machine-id” value is written in “/etc/machine-id”.
– We can either remove or empty the machine-id file to clear out the original value.
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2. Create the new “machine-id” value
Generate a new machine-id by the “systemd-machine-id-setup” command which populates the remove file again with a new and unique machine-id value.
Machine Id For Mac Osx
3. Verify
Verify the new value of machine-id.
Machine Id For Mac Windows 10
Machine Id For Mac Os
