I'm learning to install a USB to ethernet adaptor to give my fedora laptop a second nic that can run https. I assume every nic needs its own configuration file in /etc/sysconfig/network-scripts.
When I plugged it into the laptop and used network manager, the manger created a ifcfg-eth2 file but gave it no mac address. I want to put the mac address into ifcfg-eth2 manually, or just make my own ifcfg-eth1.
I did a search and found an article that says the mac address is printed on the back of the device. There are 3 numbers on the back of my device. One starts with "S/N:", another starts with "H/W", but this is only 4 characters long, and another is on a barcode.
Does anyone know if one of these is the mac?
Btw, why would the network manager go from eth0 to eth2? Why skip eth1?