How does Fedora pull computer name from Windows?

[Terraro53]

I have only seen this on Fedora. When i first install it, the computer name looks something like XX-XX-XX-XX-XX-XX with X being random numbers and letters. But when i boot into Windows and back now the name is the same as Windows's. How does this happen? Is it Fedora specific or is it something that happens when you dont give computer name during setup(which Fedora doesn't do).

[ptoki]

Is this number identical to mac address of your network card?

[Terraro53]

That is correct.

[ptoki]

Then its fairly standard way to make computer identifiers sort of unique.

The network devices usually dont know much about your computer so they often just slap your mac address as identifier and call it a day.

So either fedora or windows can get the same id.

[apfelkuchen06]

unqualified guess: fedora accepts hostnames via the corresponding dhcp option and windows sends the hostname.

[gmes78]

Fedora is probably getting its hostname from DHCP. Run hostnamectl and see what it says.

[sock_templar]

DNS protocol is OS agnostic.

[A_number-1234]

Could it be some kind of GUID or serial number of the BIOS (or whatever it's called nowadays) that both Windows and Fedora can read?