Depends what you want to do, there are a few alternatives for luks. TPM, nbde server, dropbear-ssh, usb key, yubikey.
You can use any combination of the above with password being a fallback.
this post was submitted on 22 Nov 2023
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dropbear-ssh is what I'm looking for. thanks!
Windows does bitlocker and works pretty well. Depending on what you’re trying to do this may be a good solution.
I do this with ZFS using a Keyfile and a script that runs at boot to unlock/mount.
I put the keyfiles on a USB drive. (Make sure you have backups!) This USB drive is hidden, I won't go into details on how I did that, several ways to do that, you can get pretty creative.
If someone steals my server, they need to know where I hid my USB, or they won't be able to get to any of the encrypted datasets.
If you use luks, you can just add dropbear to have a ssh-server running and enter your password there.
That sounds like exactly what fits my situation. Thanks!