Goal: sftp/scp only access, without the need for linux users.
I want to provide 10 sftp/scp directories to 10 people. Let's call this "virtual account"
I don't want to create linux users for each of them.
I would like to create one linux user (backup_user). In his home-directory will be 10 directories. For each "virtual account" one directory.
Every virtual account must only see his own files, not the files from an other virtual account.
I would like to use the solution which is provided here: https://serverfault.com/a/88864/90324
In short there will be 10 lines in the authorized_keys file:
~backup_user/.ssh/authorized_keys: no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty,command=\ "scp -v -r -d -t ~/CONTENT" ssh-rsa AAAAMYRSAKEY...
I could improve this by a python script and not use the hard coded "scp -v ...".
I would like to support scp and sftp.
Is there a way to chroot, to ensure each virtual account can't break out of his jail?
BTW: The idea with authorized_keys and "forced command" is just my current strategy. If there is a better way to each the overall goal, then please tell me :-)
We are running an OpenSSH server. I would like to stick to it, if possible.
We found a different solution: http. We developed a small and generic file http uploader: https://github.com/guettli/tbzuploader Feedback is welcome