As I understand it, if I want encryption on my existing system, 18.04 LTS, my best bet is full-disk encryption, and the best way to get that is to back up my data and re-install and encrypt during the process. If that's true, then I have some process-type questions.
What, precisely, do I back up? My Home directory, sure; anything else?
I have a VPN running and I hope I can get it again if I have to do so from start, but is there a way to back this up so I don't have to begin afresh?
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