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Disable writing and using "authorized_keys" file

Even if it is not yet critical to the performance of SSH connections, we might want to proactively disable writing and using the static authorized_keys file for SSH. See the documentation.

Problematic points in our setup:

  • sshd only wants to run a command that's owned by root and having strict permissions all up to /, so permissions on /usr/local needs to be changed.
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information