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How to auto unlock an encrypted drive on start for a fedora server?
(lemmy.selfhostcat.com)
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this post was submitted on 12 Jan 2025
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Security is always about tradeoffs. On my home server unattended reboots are necessary so it needs to auto-decrypt. But using encryption means I don't need to worry about discarding broken hardware or if I need to travel with the server were it may be inspected. For my laptop, desktop and phone where I don't need unattended reboots I require the encryption key on bootup.
Thanks, both of your points are good. I was thinking about it in terms of what OP is trying to do. Having key on the same drive. Putting the key on a separate drive or even the cloud like someone else suggested makes sense. I have all of my computers on manual. Since I don't have anything critical enough that it can't wait till I'm back home to start it back up.
Yeah, I don't think there are many benefits when keeping the key on the same drive. Other than a bit of obfuscation. It does still help with erasing, as you can wipe the keyslots (rendering the key useless) but with modern storage media deletion is fairly hard to ensure. But still better than unencrypted.