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A question arose in a group discussion: Can directory listing be disabled for sftp while still retaining read and write access?

We are using openssh on ubuntu server 11.02 if that helps.

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Why not remove directory search permissions? (chmod a-x <dirname>?) – Mikel Jul 25 '12 at 19:23
@Mikel, but then you can also not cd any more. – Nils Jul 25 '12 at 19:29
up vote 7 down vote accepted

Remove Read access.

  • Read access on a directory means that you can see a listing of files within that directory.
  • Execute (X) access means you can cd into the directory or traverse it
  • Write access means that you are able to add or change items within the directory.
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Thanks! Read access was the solution. For interested reader, the command to remove read access from all users is chmod -r folder_name. – Candide Jul 26 '12 at 14:25

I do not think so.

I found nothing in the sshd_config man-page that gives a hint about restricting sftp-commands (like the restricitons you can impose on some ftp-daemons).

I have not tested this, but perhaps you can alias the ls command to something that does nothing in ssh-context (so either in .sshrc or via forced-command).

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I just recently set up a chroot sftp system, and as I was testing, I noticed that a chrooted user with a shell of /bin/false was not able to executer ls without getting kicked out. The sshd_config is also using internal-sftp-server.

I haven't had time to investigate it yet, but I suspect that internal-sftp-server is trying to spawn a sub-shell, and is being denied, since the user's shell is /bin/false. It's just a theory.

FWIW, my user's home directory is root:root 755.

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