Selfhosted
A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.
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Flash drive hidden under the carpet and connected via a USB extension, holding the decryption keys - threat model is a robber making off with the hard drives and gear, where the data just needs to be useless or inaccessible to others.
There's a script in the initramfs which looks for the flash drive, and passes the decryption key on it to cryptsetup, which then kicks off the rest of the boot mounting the filesystems underneath the luks
I could technically remove the flash drive after boot as the system is on a UPS, but I like the ability to reboot remotely without too much hassle.
What I'd like to do in future would be to implement something more robust with a hardware device requiring 2FA. I'm not familiar with low level hardware security at all though, so the current setup will do fine for the time being!
This is a pretty clever solution. Most thieves won't follow a cable that for all intents looks like a network cable, especially if it disappears into a wall plate or something.
I don't think most thieves care much about the data on the computer in the first place. Steal hardware, fresh install of Windows on it and straight to the pawn shop.
Agreed. Even just putting a non-Windows/Mac compatible file system on it may have the same effect. They cannot see files when they plug the drive into their PC or Mac, so they probably also just format it.