Ever wonder where these came from? How these got generated?
Ever wanted to copy an interface file, and wonder about what happens if you use the same UUID, or - perhaps worse - what happens if you blow it away, or just change it willy nilly?
Well, I came across this and tested it on VirtualBox - because VirtualBox did not generate files or UUIDs for new NAT interfaces I created. I generated new UUIDs, and nothing complained or barked at all. Yay.
I'm sure I will remember this, but I'll post it just in case.
NOTE: The uuidgen utility seemed to be on the box. I did not need to install anything. I don't know what package this utility is a part of, and have not researched. It just seemed to work - for me at least.
http://www.itechlounge.net/2014/03/linux-how-to-generate-uuid-for-network-interface-on-rhelcentos/
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